1 Commits

Author SHA1 Message Date
29e391c472 event maching heuristic update 2026-06-21 12:32:22 +02:00
17 changed files with 1513 additions and 3831 deletions

View File

@@ -12,24 +12,16 @@ public class HeuristicEventMatchingEngine implements EventMatchingEngine {
return false; return false;
} }
String rawTriggerEvent = triggerPoint.getEvent(); String triggerEvent = simplify(triggerPoint.getEvent());
String smEventRaw = stateMachineEvent.fullIdentifier() != null ? stateMachineEvent.fullIdentifier() : stateMachineEvent.rawName(); String smEventRaw = stateMachineEvent.fullIdentifier() != null ? stateMachineEvent.fullIdentifier() : stateMachineEvent.rawName();
String smEvent = simplify(smEventRaw); String smEvent = simplify(smEventRaw);
boolean isWildcard = isWildcardVariable(rawTriggerEvent); boolean isWildcard = isWildcardVariable(triggerEvent);
List<String> polyEvents = triggerPoint.getPolymorphicEvents() != null ? triggerPoint.getPolymorphicEvents() : java.util.Collections.emptyList(); List<String> polyEvents = triggerPoint.getPolymorphicEvents() != null ? triggerPoint.getPolymorphicEvents() : java.util.Collections.emptyList();
boolean hasPolyMatch = false; boolean hasPolyMatch = false;
for (String pe : polyEvents) { for (String pe : polyEvents) {
if (pe.contains(".") && smEventRaw.contains(".")) {
if (smEventRaw.equals(pe) || smEventRaw.endsWith("." + pe)) {
hasPolyMatch = true;
break;
}
continue; // Stricter matching: do not fallback if both have qualifiers but don't match
}
String simplePe = pe; String simplePe = pe;
if (pe.contains(".")) { if (pe.contains(".")) {
simplePe = pe.substring(pe.lastIndexOf('.') + 1); simplePe = pe.substring(pe.lastIndexOf('.') + 1);
@@ -43,18 +35,7 @@ public class HeuristicEventMatchingEngine implements EventMatchingEngine {
} }
} }
if (hasPolyMatch) return true; return hasPolyMatch || smEvent.equals(triggerEvent) || (polyEvents.isEmpty() && isWildcard);
if (polyEvents.isEmpty() && isWildcard) return true;
if (rawTriggerEvent.contains(".") && smEventRaw.contains(".")) {
if (smEventRaw.equals(rawTriggerEvent) || smEventRaw.endsWith("." + rawTriggerEvent)) {
return true;
}
return false;
}
String triggerEvent = simplify(rawTriggerEvent);
return smEvent.equals(triggerEvent);
} }
private boolean isWildcardVariable(String eventStr) { private boolean isWildcardVariable(String eventStr) {

View File

@@ -17,19 +17,6 @@ public class ConstantResolver {
private String resolveInternal(Expression expr, CodebaseContext context, Set<String> visited) { private String resolveInternal(Expression expr, CodebaseContext context, Set<String> visited) {
if (expr == null) return null; if (expr == null) return null;
// Unwrap common wrappers
if (expr instanceof CastExpression ce) {
return resolveInternal(ce.getExpression(), context, visited);
}
if (expr instanceof ParenthesizedExpression pe) {
return resolveInternal(pe.getExpression(), context, visited);
}
if (expr instanceof MethodInvocation mi && (mi.getName().getIdentifier().equals("requireNonNull") || mi.getName().getIdentifier().equals("notNull"))) {
if (!mi.arguments().isEmpty()) {
return resolveInternal((Expression) mi.arguments().get(0), context, visited);
}
}
// 1. Literal? // 1. Literal?
if (expr instanceof StringLiteral sl) { if (expr instanceof StringLiteral sl) {
return sl.getLiteralValue(); return sl.getLiteralValue();

View File

@@ -12,15 +12,565 @@ import org.eclipse.jdt.core.dom.*;
import java.util.*; import java.util.*;
@Slf4j @Slf4j
public class HeuristicCallGraphEngine extends AbstractCallGraphEngine { public class HeuristicCallGraphEngine implements CallGraphEngine {
protected String currentMethodFqn; private final CodebaseContext context;
protected Map<String, List<CallEdge>> graph; private final ConstantResolver constantResolver;
private String currentMethodFqn;
private Map<String, List<CallEdge>> graph;
public HeuristicCallGraphEngine(CodebaseContext context) { public HeuristicCallGraphEngine(CodebaseContext context) {
super(context); this.context = context;
this.constantResolver = new ConstantResolver();
} }
protected Map<String, List<CallEdge>> buildCallGraph() { public List<CallChain> findChains(List<EntryPoint> entryPoints, List<TriggerPoint> triggers) {
Map<String, List<CallEdge>> callGraph = buildCallGraph();
List<CallChain> chains = new ArrayList<>();
for (EntryPoint ep : entryPoints) {
String startMethod = ep.getClassName() + "." + ep.getMethodName();
boolean foundAny = false;
for (TriggerPoint tp : triggers) {
String targetMethod = tp.getClassName() + "." + tp.getMethodName();
List<String> path = findPath(startMethod, targetMethod, callGraph, new HashSet<>());
if (path != null) {
foundAny = true;
TriggerPoint resolvedTp = resolveTriggerPointParameters(tp, path, callGraph);
String contextMachineId = extractContextMachineId(path, callGraph);
chains.add(CallChain.builder()
.entryPoint(ep)
.triggerPoint(resolvedTp)
.methodChain(path)
.contextMachineId(contextMachineId)
.build());
}
}
if (!foundAny && log.isDebugEnabled()) {
log.debug("Entry point {} ({}) did not reach any trigger points. Graph nodes available: {}", ep.getName(), startMethod, callGraph.keySet());
}
}
return chains;
}
private TriggerPoint resolveTriggerPointParameters(TriggerPoint tp, List<String> path, Map<String, List<CallEdge>> callGraph) {
if (path.size() < 2) return tp;
String event = tp.getEvent();
if (event == null || event.isEmpty() || event.contains("\"")) return tp;
String currentParamName = event;
String resolvedValue = event;
String methodSuffix = "";
// Extract method calls like .getType() so we can trace the base parameter
int dotIndex = currentParamName.indexOf('.');
if (dotIndex > 0 && dotIndex + 1 < currentParamName.length()) {
char nextChar = currentParamName.charAt(dotIndex + 1);
if (Character.isLowerCase(nextChar)) {
methodSuffix = currentParamName.substring(dotIndex);
currentParamName = currentParamName.substring(0, dotIndex);
}
}
// Walk backwards up the call chain
for (int i = path.size() - 1; i > 0; i--) {
String target = path.get(i);
String caller = path.get(i - 1);
// Find parameter index in target method
int paramIndex = getParameterIndex(target, currentParamName);
if (paramIndex < 0) {
// Not a parameter. Maybe it's a local variable initialized from a parameter or method call?
String tracedVar = traceLocalVariable(target, currentParamName);
if (tracedVar != null && !tracedVar.equals(currentParamName)) {
// Extract method calls like .getType() from the traced variable
int dotIdx = tracedVar.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
tracedVar = tracedVar.substring(0, dotIdx);
}
currentParamName = tracedVar;
resolvedValue = tracedVar + methodSuffix;
paramIndex = getParameterIndex(target, currentParamName);
}
}
if (paramIndex < 0) {
break; // Parameter name changed or not found, stop tracing
}
// Find the edge from caller to target to get the argument passed
List<CallEdge> edges = callGraph.get(caller);
boolean found = false;
if (edges != null) {
for (CallEdge edge : edges) {
if (edge.getTargetMethod().equals(target) || isHeuristicMatch(edge.getTargetMethod(), target)) {
if (paramIndex < edge.getArguments().size()) {
String arg = edge.getArguments().get(paramIndex);
if (arg != null) {
// If the argument passed has a method call, extract it
int dotIdx = arg.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < arg.length() && Character.isLowerCase(arg.charAt(dotIdx + 1))) {
methodSuffix = arg.substring(dotIdx) + methodSuffix;
arg = arg.substring(0, dotIdx);
}
currentParamName = arg;
resolvedValue = arg + methodSuffix;
found = true;
break;
}
}
}
}
}
if (!found) break; // Could not map argument
}
// Final check on the entry method
String entryMethod = path.get(0);
int entryParamIndex = getParameterIndex(entryMethod, currentParamName);
if (entryParamIndex < 0) {
String tracedVar = traceLocalVariable(entryMethod, currentParamName);
if (tracedVar != null && !tracedVar.equals(currentParamName)) {
int dotIdx = tracedVar.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
tracedVar = tracedVar.substring(0, dotIdx);
}
currentParamName = tracedVar;
resolvedValue = tracedVar + methodSuffix;
}
}
List<String> polymorphicEvents = new ArrayList<>();
// Parse resolvedValue using JDT to robustly handle complex expressions
org.eclipse.jdt.core.dom.ASTParser exprParser = org.eclipse.jdt.core.dom.ASTParser.newParser(org.eclipse.jdt.core.dom.AST.getJLSLatest());
exprParser.setSource(resolvedValue.toCharArray());
exprParser.setKind(org.eclipse.jdt.core.dom.ASTParser.K_EXPRESSION);
org.eclipse.jdt.core.dom.ASTNode exprNode = exprParser.createAST(null);
String varName = null;
String methodName = null;
String declaredType = null;
String sourceMethod = null;
if (exprNode instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
methodName = mi.getName().getIdentifier();
if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
} else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ParenthesizedExpression pe &&
pe.getExpression() instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
declaredType = ce.getType().toString();
sourceMethod = "inline-cast";
} else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
} else {
// Fallback for complex chained expressions
String exprStr = mi.getExpression() != null ? mi.getExpression().toString() : "";
if (!exprStr.contains("(")) {
varName = exprStr;
}
}
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType); // Track the payload type as the event
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ConditionalExpression cond) {
if (cond.getThenExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cicThen) {
polymorphicEvents.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cicThen.getType()));
}
if (cond.getElseExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cicElse) {
polymorphicEvents.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cicElse.getType()));
}
sourceMethod = "inline-ternary";
declaredType = polymorphicEvents.isEmpty() ? null : polymorphicEvents.get(0);
} else if (exprNode instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
methodName = "VariableReference"; // We just want to trigger deep trace
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ParenthesizedExpression pe &&
pe.getExpression() instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType);
} else if (exprNode instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType);
}
if (methodName != null) {
if (varName != null && declaredType == null) {
for (String methodFqn : path) {
declaredType = getVariableDeclaredType(methodFqn, varName);
if (declaredType != null) {
sourceMethod = methodFqn;
break;
}
}
// If it wasn't a variable, it might be a static method call (e.g., EventBuilder.buildEvent())
if (declaredType == null && varName.matches("^[A-Z].*")) {
org.eclipse.jdt.core.dom.TypeDeclaration staticTd = context.getTypeDeclaration(varName);
if (staticTd != null) {
declaredType = context.getFqn(staticTd);
sourceMethod = "static-call";
}
}
}
if (declaredType != null) {
System.out.println("DEEP TRACE: " + sourceMethod + " " + (varName != null ? varName : "inline") + " -> " + declaredType);
List<String> typesToInspect = new ArrayList<>();
if ("inline-instantiation".equals(sourceMethod)) {
typesToInspect.add(declaredType);
} else {
typesToInspect.add(declaredType);
typesToInspect.addAll(context.getImplementations(declaredType));
}
System.out.println("DEEP TRACE IMPLS: " + typesToInspect);
for (String type : typesToInspect) {
Set<String> visited = new HashSet<>();
TypeDeclaration baseTd = context.getTypeDeclaration(type);
CompilationUnit cuToUse = null;
if (baseTd != null && baseTd.getRoot() instanceof CompilationUnit) {
cuToUse = (CompilationUnit) baseTd.getRoot();
} else {
String firstPathMethod = path.get(0);
String entryClassName = firstPathMethod.substring(0, firstPathMethod.lastIndexOf('.'));
TypeDeclaration entryTd = context.getTypeDeclaration(entryClassName);
if (entryTd != null && entryTd.getRoot() instanceof CompilationUnit) {
cuToUse = (CompilationUnit) entryTd.getRoot();
}
}
List<String> constants = resolveMethodReturnConstant(type, methodName, 0, visited, cuToUse);
System.out.println("DEEP TRACE RETURN: " + type + " -> " + constants);
for (String constant : constants) {
if (!polymorphicEvents.contains(constant)) {
polymorphicEvents.add(constant);
}
}
}
}
}
// (e.g. it returned a field name like 'type', or nothing), we can scrape the resolvedValue string directly
// for string literals or enum-like constants.
boolean hasValidConstant = false;
for (String ev : polymorphicEvents) {
String val = ev.contains(".") ? ev.substring(ev.lastIndexOf('.') + 1) : ev;
if (val.equals(val.toUpperCase()) && val.length() > 2) {
hasValidConstant = true;
break;
}
}
if (!hasValidConstant && resolvedValue.contains("(")) {
java.util.List<String> scraped = new java.util.ArrayList<>();
// Extract "STRING_LITERALS"
java.util.regex.Matcher m1 = java.util.regex.Pattern.compile("\"([^\"]+)\"").matcher(resolvedValue);
while (m1.find()) {
scraped.add(m1.group(1));
}
// Extract ENUM_LIKE_CONSTANTS
java.util.regex.Matcher m2 = java.util.regex.Pattern.compile("\\b([A-Z_]{3,})\\b").matcher(resolvedValue);
while (m2.find()) {
if (!scraped.contains(m2.group(1))) {
scraped.add(m2.group(1));
}
}
if (!scraped.isEmpty()) {
polymorphicEvents.clear();
polymorphicEvents.addAll(scraped);
}
}
// Clean up any remaining invalid AST fallbacks (like 'type', 'event') if we found valid ones
if (polymorphicEvents.size() > 1) {
polymorphicEvents.removeIf(e -> {
String val = e.contains(".") ? e.substring(e.lastIndexOf('.') + 1) : e;
return !val.equals(val.toUpperCase()) || val.length() <= 2;
});
}
List<String> newPolyEvents = new ArrayList<>();
for (String pe : polymorphicEvents) {
List<String> resolved = resolveClassConstantReturns(pe, context, null);
if (resolved != null && !resolved.isEmpty()) {
newPolyEvents.addAll(resolved);
} else {
newPolyEvents.add(pe);
}
}
polymorphicEvents = newPolyEvents;
if (!resolvedValue.equals(event) || !polymorphicEvents.isEmpty()) {
return TriggerPoint.builder()
.event(resolvedValue)
.className(tp.getClassName())
.methodName(tp.getMethodName())
.sourceFile(tp.getSourceFile())
.lineNumber(tp.getLineNumber())
.polymorphicEvents(polymorphicEvents)
.build();
}
return tp;
}
private int getParameterIndex(String methodFqn, String paramName) {
if (methodFqn == null || !methodFqn.contains(".")) return -1;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null) {
for (int i = 0; i < md.parameters().size(); i++) {
SingleVariableDeclaration svd = (SingleVariableDeclaration) md.parameters().get(i);
if (svd.getName().getIdentifier().equals(paramName)) {
return i;
}
}
}
}
return -1;
}
private String getVariableDeclaredType(String methodFqn, String varName) {
if (methodFqn == null || !methodFqn.contains(".")) return null;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null) {
for (Object pObj : md.parameters()) {
SingleVariableDeclaration svd = (SingleVariableDeclaration) pObj;
if (svd.getName().getIdentifier().equals(varName)) {
return svd.getType().toString();
}
}
final String[] foundType = new String[1];
if (md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationStatement node) {
for (Object fragObj : node.fragments()) {
VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
if (frag.getName().getIdentifier().equals(varName)) {
foundType[0] = node.getType().toString();
}
}
return super.visit(node);
}
});
}
return foundType[0];
}
}
return null;
}
private List<String> resolveMethodReturnConstant(String className, String methodName, int depth, Set<String> visited, CompilationUnit contextCu) {
if (depth > 20) return Collections.emptyList();
String fqn = className + "." + methodName;
if (!visited.add(fqn)) return Collections.emptyList();
List<String> constants = new ArrayList<>();
TypeDeclaration tempTd = contextCu != null ? context.getTypeDeclaration(className, contextCu) : null;
if (tempTd == null) {
tempTd = context.getTypeDeclaration(className);
}
final TypeDeclaration td = tempTd;
if (td == null) {
System.out.println("DEEP TRACE FAILED TO FIND TD: " + className);
}
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null && md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(ReturnStatement node) {
Expression retExpr = node.getExpression();
if (retExpr != null) {
boolean handled = false;
if (retExpr instanceof MethodInvocation mi) {
// Follow delegation first
String called = resolveCalledMethod(mi);
System.out.println("DEEP TRACE RESOLVED CALLED: " + called);
if (called != null && called.contains(".")) {
if (visited.contains(called)) {
handled = true;
} else {
String cName = called.substring(0, called.lastIndexOf('.'));
String mName = called.substring(called.lastIndexOf('.') + 1);
TypeDeclaration targetTd = contextCu != null ? context.getTypeDeclaration(cName, contextCu) : context.getTypeDeclaration(cName);
if (targetTd == null) targetTd = context.getTypeDeclaration(cName);
if (targetTd != null && context.findMethodDeclaration(targetTd, mName, true) != null) {
List<String> delegationResult = resolveMethodReturnConstant(cName, mName, depth + 1, visited, contextCu);
constants.addAll(delegationResult);
handled = true;
}
}
}
}
if (!handled) {
String val = constantResolver.resolve(retExpr, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
constants.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
constants.add(val);
}
} else if (retExpr instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
constants.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType()));
} else if (retExpr instanceof QualifiedName qn) {
constants.add(qn.toString());
} else if (retExpr instanceof SimpleName sn) {
List<String> consts = traceFieldInConstructors(td, sn.getIdentifier(), context, visited);
if (!consts.isEmpty()) {
constants.addAll(consts);
} else {
constants.add(sn.toString());
}
}
}
}
return super.visit(node);
}
});
}
}
visited.remove(fqn);
return constants;
}
private List<String> resolveClassConstantReturns(String className, click.kamil.springstatemachineexporter.ast.common.CodebaseContext context, CompilationUnit contextCu) {
TypeDeclaration td = contextCu != null ? context.getTypeDeclaration(className, contextCu) : context.getTypeDeclaration(className);
if (td == null) td = context.getTypeDeclaration(className);
if (td == null) return null;
final List<String> resolvedConstants = new ArrayList<>();
for (MethodDeclaration md : td.getMethods()) {
if (md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(ReturnStatement node) {
if (node.getExpression() instanceof QualifiedName qn) {
resolvedConstants.add(qn.getName().getIdentifier());
} else if (node.getExpression() instanceof org.eclipse.jdt.core.dom.StringLiteral sl) {
resolvedConstants.add(sl.getLiteralValue());
}
return super.visit(node);
}
});
}
if (!resolvedConstants.isEmpty()) return resolvedConstants;
}
return null;
}
private String traceLocalVariable(String methodFqn, String varName) {
if (methodFqn == null || !methodFqn.contains(".")) return null;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null && md.getBody() != null) {
final Expression[] initializer = new Expression[1];
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationFragment node) {
if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
initializer[0] = node.getInitializer();
}
return super.visit(node);
}
@Override
public boolean visit(Assignment node) {
if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
initializer[0] = node.getRightHandSide();
}
return super.visit(node);
}
});
if (initializer[0] != null) {
Expression expr = traceVariable(initializer[0]);
if (expr instanceof MethodInvocation mi) {
// Unwrapper logic: If wrapper method is called, extract its arguments recursively
Expression innerMost = unwrapMethodInvocation(mi, 0);
if (innerMost instanceof MethodInvocation innerMi) {
if (innerMi.getExpression() instanceof SimpleName sn) {
return sn.getIdentifier() + "." + innerMi.getName().getIdentifier() + "()";
}
return innerMi.getName().getIdentifier() + "()";
}
if (innerMost instanceof SimpleName sn) {
return sn.getIdentifier();
}
return innerMost.toString();
}
if (expr instanceof SimpleName sn) {
return sn.getIdentifier();
}
return expr.toString();
}
}
}
return null;
}
private Expression unwrapMethodInvocation(MethodInvocation mi, int depth) {
if (depth > 5) return mi;
if (!mi.arguments().isEmpty()) {
Expression arg = (Expression) mi.arguments().get(0);
if (arg instanceof MethodInvocation innerMi) {
return unwrapMethodInvocation(innerMi, depth + 1);
}
return arg;
}
return mi;
}
private String extractContextMachineId(List<String> path, Map<String, List<CallEdge>> callGraph) {
for (String node : path) {
List<CallEdge> edges = callGraph.get(node);
if (edges != null) {
for (CallEdge edge : edges) {
String target = edge.getTargetMethod();
if (target != null && (target.contains(".restore") || target.contains(".read"))) {
// Persister signatures usually like: restore(stateMachine, contextObj)
if (edge.getArguments().size() >= 2) {
return edge.getArguments().get(1); // The contextObj / machineId
}
}
}
}
}
return null;
}
private MethodDeclaration findEnclosingMethod(ASTNode node) {
ASTNode parent = node.getParent();
while (parent != null && !(parent instanceof MethodDeclaration)) {
parent = parent.getParent();
}
return (MethodDeclaration) parent;
}
private Map<String, List<CallEdge>> buildCallGraph() {
graph = new HashMap<>(); graph = new HashMap<>();
for (CompilationUnit cu : context.getCompilationUnits()) { for (CompilationUnit cu : context.getCompilationUnits()) {
cu.accept(new ASTVisitor() { cu.accept(new ASTVisitor() {
@@ -106,7 +656,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return graph; return graph;
} }
protected List<String> resolveArguments(List<?> astArguments) { private List<String> resolveArguments(List<?> astArguments) {
List<String> args = new ArrayList<>(); List<String> args = new ArrayList<>();
for (Object argObj : astArguments) { for (Object argObj : astArguments) {
Expression expr = (Expression) argObj; Expression expr = (Expression) argObj;
@@ -164,7 +714,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return args; return args;
} }
protected List<String> resolveCalledMethodsPolymorphic(MethodInvocation node) { private List<String> resolveCalledMethodsPolymorphic(MethodInvocation node) {
String baseCalled = resolveCalledMethod(node); String baseCalled = resolveCalledMethod(node);
if (baseCalled == null) return Collections.emptyList(); if (baseCalled == null) return Collections.emptyList();
@@ -184,7 +734,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return allResolved; return allResolved;
} }
protected String resolveCalledMethod(MethodInvocation node) { private String resolveCalledMethod(MethodInvocation node) {
Expression receiver = node.getExpression(); Expression receiver = node.getExpression();
String methodName = node.getName().getIdentifier(); String methodName = node.getName().getIdentifier();
@@ -220,7 +770,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return null; return null;
} }
protected String resolveReceiverTypeFallback(SimpleName receiverNameNode) { private String resolveReceiverTypeFallback(SimpleName receiverNameNode) {
String varName = receiverNameNode.getIdentifier(); String varName = receiverNameNode.getIdentifier();
// 1. Check local variables in enclosing method // 1. Check local variables in enclosing method
@@ -270,7 +820,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return null; return null;
} }
protected String resolveTypeToFqn(Type type, ASTNode contextNode) { private String resolveTypeToFqn(Type type, ASTNode contextNode) {
if (type == null) return null; if (type == null) return null;
String simpleName; String simpleName;
if (type.isSimpleType()) { if (type.isSimpleType()) {
@@ -299,7 +849,7 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return simpleName; return simpleName;
} }
protected String resolveMethodInType(TypeDeclaration td, String methodName) { private String resolveMethodInType(TypeDeclaration td, String methodName) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true); MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null) { if (md != null) {
TypeDeclaration declaringTd = findEnclosingType(md); TypeDeclaration declaringTd = findEnclosingType(md);
@@ -308,4 +858,185 @@ public class HeuristicCallGraphEngine extends AbstractCallGraphEngine {
return null; return null;
} }
private List<String> findPath(String start, String target, Map<String, List<CallEdge>> graph, Set<String> visited) {
if (start.equals(target)) return new ArrayList<>(List.of(start));
if (!visited.add(start)) return null; // Path-scoped cycle detection
List<CallEdge> neighbors = graph.get(start);
if (neighbors != null) {
for (CallEdge edge : neighbors) {
String neighbor = edge.getTargetMethod();
if (neighbor.equals(target) || isHeuristicMatch(neighbor, target)) {
visited.remove(start);
return new ArrayList<>(List.of(start, target));
}
List<String> path = findPath(neighbor, target, graph, visited);
if (path != null) {
path.add(0, start);
visited.remove(start);
return path;
}
}
}
if (log.isDebugEnabled()) {
log.debug("Path search dead-end at {} when looking for {}", start, target);
}
visited.remove(start);
return null;
}
private boolean isHeuristicMatch(String neighbor, String target) {
if (target.endsWith("." + neighbor)) return true;
String simpleTarget = target.contains(".") ? target.substring(target.lastIndexOf('.') + 1) : target;
String simpleNeighbor = neighbor.contains(".") ? neighbor.substring(neighbor.lastIndexOf('.') + 1) : neighbor;
return simpleNeighbor.equals(simpleTarget);
}
private TypeDeclaration findEnclosingType(ASTNode node) {
ASTNode parent = node.getParent();
while (parent != null && !(parent instanceof TypeDeclaration)) {
parent = parent.getParent();
}
return (TypeDeclaration) parent;
}
private Expression traceVariable(Expression expr) {
if (expr instanceof SimpleName sn) {
String varName = sn.getIdentifier();
MethodDeclaration enclosingMethod = findEnclosingMethod(expr);
if (enclosingMethod != null) {
final Expression[] initializer = new Expression[1];
enclosingMethod.accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationFragment node) {
if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
initializer[0] = node.getInitializer();
}
return super.visit(node);
}
@Override
public boolean visit(Assignment node) {
if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
initializer[0] = node.getRightHandSide();
}
return super.visit(node);
}
});
if (initializer[0] != null) {
return traceVariable(initializer[0]);
}
}
}
return expr;
}
private List<String> traceFieldInConstructors(TypeDeclaration td, String fieldName, CodebaseContext context, Set<String> visited) {
List<String> results = new ArrayList<>();
// 1. Check Field Declarations
for (org.eclipse.jdt.core.dom.FieldDeclaration fd : td.getFields()) {
for (Object fragObj : fd.fragments()) {
org.eclipse.jdt.core.dom.VariableDeclarationFragment frag = (org.eclipse.jdt.core.dom.VariableDeclarationFragment) fragObj;
if (frag.getName().getIdentifier().equals(fieldName) && frag.getInitializer() != null) {
Expression right = frag.getInitializer();
if (right instanceof MethodInvocation mi) {
String calledName = mi.getName().getIdentifier();
String targetClass = context.getFqn(td);
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
results.addAll(resolveMethodReturnConstant(targetClass, calledName, 0, new HashSet<>(visited), cu));
} else {
String val = constantResolver.resolve(right, context);
if (val != null) results.add(val);
}
}
}
}
org.eclipse.jdt.core.dom.ASTVisitor assignmentVisitor = new org.eclipse.jdt.core.dom.ASTVisitor() {
@Override
public boolean visit(Assignment node) {
Expression left = node.getLeftHandSide();
if ((left instanceof SimpleName && ((SimpleName) left).getIdentifier().equals(fieldName)) ||
(left instanceof FieldAccess && ((FieldAccess) left).getName().getIdentifier().equals(fieldName))) {
Expression right = node.getRightHandSide();
if (right instanceof MethodInvocation mi) {
String calledName = mi.getName().getIdentifier();
String targetClass = context.getFqn(td);
if (mi.getExpression() != null && mi.resolveMethodBinding() != null && mi.resolveMethodBinding().getDeclaringClass() != null) {
targetClass = mi.resolveMethodBinding().getDeclaringClass().getQualifiedName();
} else if (mi.getExpression() instanceof SimpleName) {
String exprName = ((SimpleName) mi.getExpression()).getIdentifier();
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
TypeDeclaration targetTd = context.resolveStaticImport(exprName, cu);
if (targetTd != null) {
targetClass = context.getFqn(targetTd);
}
}
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
results.addAll(resolveMethodReturnConstant(targetClass, calledName, 0, new HashSet<>(visited), cu));
} else {
String val = constantResolver.resolve(right, context);
if (val != null) results.add(val);
}
}
return super.visit(node);
}
@Override
public boolean visit(ConstructorInvocation node) {
for (Object argObj : node.arguments()) {
Expression arg = (Expression) argObj;
String val = constantResolver.resolve(arg, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
results.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
results.add(val);
}
}
}
return super.visit(node);
}
@Override
public boolean visit(SuperConstructorInvocation node) {
for (Object argObj : node.arguments()) {
Expression arg = (Expression) argObj;
String val = constantResolver.resolve(arg, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
results.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
results.add(val);
}
}
}
return super.visit(node);
}
};
// 2. Check Constructors
for (MethodDeclaration md : td.getMethods()) {
if (md.isConstructor() && md.getBody() != null) {
md.getBody().accept(assignmentVisitor);
}
}
// 3. Check Initializers
for (Object bodyDecl : td.bodyDeclarations()) {
if (bodyDecl instanceof org.eclipse.jdt.core.dom.Initializer init && init.getBody() != null) {
init.getBody().accept(assignmentVisitor);
}
}
return results;
}
} }

View File

@@ -14,17 +14,567 @@ import java.util.*;
import click.kamil.springstatemachineexporter.analysis.spring.InjectionPointAnalyzer; import click.kamil.springstatemachineexporter.analysis.spring.InjectionPointAnalyzer;
@Slf4j @Slf4j
public class JdtCallGraphEngine extends AbstractCallGraphEngine { public class JdtCallGraphEngine implements CallGraphEngine {
private final CodebaseContext context;
private final ConstantResolver constantResolver;
private final InjectionPointAnalyzer injectionAnalyzer; private final InjectionPointAnalyzer injectionAnalyzer;
private String currentMethodFqn; private String currentMethodFqn;
private Map<String, List<CallEdge>> graph; private Map<String, List<CallEdge>> graph;
public JdtCallGraphEngine(CodebaseContext context, InjectionPointAnalyzer injectionAnalyzer) { public JdtCallGraphEngine(CodebaseContext context, InjectionPointAnalyzer injectionAnalyzer) {
super(context); this.context = context;
this.constantResolver = new ConstantResolver();
this.injectionAnalyzer = injectionAnalyzer; this.injectionAnalyzer = injectionAnalyzer;
} }
protected Map<String, List<CallEdge>> buildCallGraph() { public List<CallChain> findChains(List<EntryPoint> entryPoints, List<TriggerPoint> triggers) {
Map<String, List<CallEdge>> callGraph = buildCallGraph();
List<CallChain> chains = new ArrayList<>();
for (EntryPoint ep : entryPoints) {
String startMethod = ep.getClassName() + "." + ep.getMethodName();
boolean foundAny = false;
for (TriggerPoint tp : triggers) {
String targetMethod = tp.getClassName() + "." + tp.getMethodName();
List<String> path = findPath(startMethod, targetMethod, callGraph, new HashSet<>());
if (path != null) {
foundAny = true;
TriggerPoint resolvedTp = resolveTriggerPointParameters(tp, path, callGraph);
String contextMachineId = extractContextMachineId(path, callGraph);
chains.add(CallChain.builder()
.entryPoint(ep)
.triggerPoint(resolvedTp)
.methodChain(path)
.contextMachineId(contextMachineId)
.build());
}
}
if (!foundAny && log.isDebugEnabled()) {
log.debug("Entry point {} ({}) did not reach any trigger points. Graph nodes available: {}", ep.getName(), startMethod, callGraph.keySet());
}
}
return chains;
}
private TriggerPoint resolveTriggerPointParameters(TriggerPoint tp, List<String> path, Map<String, List<CallEdge>> callGraph) {
if (path.size() < 2) return tp;
String event = tp.getEvent();
if (event == null || event.isEmpty() || event.contains("\"")) return tp;
String currentParamName = event;
String resolvedValue = event;
String methodSuffix = "";
// Extract method calls like .getType() so we can trace the base parameter
int dotIndex = currentParamName.indexOf('.');
if (dotIndex > 0 && dotIndex + 1 < currentParamName.length()) {
char nextChar = currentParamName.charAt(dotIndex + 1);
if (Character.isLowerCase(nextChar)) {
methodSuffix = currentParamName.substring(dotIndex);
currentParamName = currentParamName.substring(0, dotIndex);
}
}
// Walk backwards up the call chain
for (int i = path.size() - 1; i > 0; i--) {
String target = path.get(i);
String caller = path.get(i - 1);
// Find parameter index in target method
int paramIndex = getParameterIndex(target, currentParamName);
if (paramIndex < 0) {
// Not a parameter. Maybe it's a local variable initialized from a parameter or method call?
String tracedVar = traceLocalVariable(target, currentParamName);
if (tracedVar != null && !tracedVar.equals(currentParamName)) {
// Extract method calls like .getType() from the traced variable
int dotIdx = tracedVar.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
tracedVar = tracedVar.substring(0, dotIdx);
}
currentParamName = tracedVar;
resolvedValue = tracedVar + methodSuffix;
paramIndex = getParameterIndex(target, currentParamName);
}
}
if (paramIndex < 0) {
break; // Parameter name changed or not found, stop tracing
}
// Find the edge from caller to target to get the argument passed
List<CallEdge> edges = callGraph.get(caller);
boolean found = false;
if (edges != null) {
for (CallEdge edge : edges) {
if (edge.getTargetMethod().equals(target) || isHeuristicMatch(edge.getTargetMethod(), target)) {
if (paramIndex < edge.getArguments().size()) {
String arg = edge.getArguments().get(paramIndex);
if (arg != null) {
// If the argument passed has a method call, extract it
int dotIdx = arg.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < arg.length() && Character.isLowerCase(arg.charAt(dotIdx + 1))) {
methodSuffix = arg.substring(dotIdx) + methodSuffix;
arg = arg.substring(0, dotIdx);
}
currentParamName = arg;
resolvedValue = arg + methodSuffix;
found = true;
break;
}
}
}
}
}
if (!found) break; // Could not map argument
}
// Final check on the entry method
String entryMethod = path.get(0);
int entryParamIndex = getParameterIndex(entryMethod, currentParamName);
if (entryParamIndex < 0) {
String tracedVar = traceLocalVariable(entryMethod, currentParamName);
if (tracedVar != null && !tracedVar.equals(currentParamName)) {
int dotIdx = tracedVar.indexOf('.');
if (dotIdx > 0 && dotIdx + 1 < tracedVar.length() && Character.isLowerCase(tracedVar.charAt(dotIdx + 1))) {
methodSuffix = tracedVar.substring(dotIdx) + methodSuffix;
tracedVar = tracedVar.substring(0, dotIdx);
}
currentParamName = tracedVar;
resolvedValue = tracedVar + methodSuffix;
}
}
List<String> polymorphicEvents = new ArrayList<>();
// Parse resolvedValue using JDT to robustly handle complex expressions
org.eclipse.jdt.core.dom.ASTParser exprParser = org.eclipse.jdt.core.dom.ASTParser.newParser(org.eclipse.jdt.core.dom.AST.getJLSLatest());
exprParser.setSource(resolvedValue.toCharArray());
exprParser.setKind(org.eclipse.jdt.core.dom.ASTParser.K_EXPRESSION);
org.eclipse.jdt.core.dom.ASTNode exprNode = exprParser.createAST(null);
String varName = null;
String methodName = null;
String declaredType = null;
String sourceMethod = null;
if (exprNode instanceof org.eclipse.jdt.core.dom.MethodInvocation mi) {
methodName = mi.getName().getIdentifier();
if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
} else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ParenthesizedExpression pe &&
pe.getExpression() instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
declaredType = ce.getType().toString();
sourceMethod = "inline-cast";
} else if (mi.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
} else {
// Fallback for complex chained expressions
String exprStr = mi.getExpression() != null ? mi.getExpression().toString() : "";
if (!exprStr.contains("(")) {
varName = exprStr;
}
}
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType); // Track the payload type as the event
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ConditionalExpression cond) {
if (cond.getThenExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cicThen) {
polymorphicEvents.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cicThen.getType()));
}
if (cond.getElseExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cicElse) {
polymorphicEvents.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cicElse.getType()));
}
sourceMethod = "inline-ternary";
declaredType = polymorphicEvents.isEmpty() ? null : polymorphicEvents.get(0);
} else if (exprNode instanceof org.eclipse.jdt.core.dom.SimpleName sn) {
varName = sn.getIdentifier();
methodName = "VariableReference"; // We just want to trigger deep trace
} else if (exprNode instanceof org.eclipse.jdt.core.dom.ParenthesizedExpression pe &&
pe.getExpression() instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType);
} else if (exprNode instanceof org.eclipse.jdt.core.dom.CastExpression ce &&
ce.getExpression() instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
declaredType = click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType());
sourceMethod = "inline-instantiation";
polymorphicEvents.add(declaredType);
}
if (methodName != null) {
if (varName != null && declaredType == null) {
for (String methodFqn : path) {
declaredType = getVariableDeclaredType(methodFqn, varName);
if (declaredType != null) {
sourceMethod = methodFqn;
break;
}
}
// If it wasn't a variable, it might be a static method call (e.g., EventBuilder.buildEvent())
if (declaredType == null && varName.matches("^[A-Z].*")) {
org.eclipse.jdt.core.dom.TypeDeclaration staticTd = context.getTypeDeclaration(varName);
if (staticTd != null) {
declaredType = context.getFqn(staticTd);
sourceMethod = "static-call";
}
}
}
if (declaredType != null) {
System.out.println("DEEP TRACE: " + sourceMethod + " " + (varName != null ? varName : "inline") + " -> " + declaredType);
List<String> typesToInspect = new ArrayList<>();
if ("inline-instantiation".equals(sourceMethod)) {
typesToInspect.add(declaredType);
} else {
typesToInspect.add(declaredType);
typesToInspect.addAll(context.getImplementations(declaredType));
}
System.out.println("DEEP TRACE IMPLS: " + typesToInspect);
for (String type : typesToInspect) {
Set<String> visited = new HashSet<>();
TypeDeclaration baseTd = context.getTypeDeclaration(type);
CompilationUnit cuToUse = null;
if (baseTd != null && baseTd.getRoot() instanceof CompilationUnit) {
cuToUse = (CompilationUnit) baseTd.getRoot();
} else {
String firstPathMethod = path.get(0);
String entryClassName = firstPathMethod.substring(0, firstPathMethod.lastIndexOf('.'));
TypeDeclaration entryTd = context.getTypeDeclaration(entryClassName);
if (entryTd != null && entryTd.getRoot() instanceof CompilationUnit) {
cuToUse = (CompilationUnit) entryTd.getRoot();
}
}
List<String> constants = resolveMethodReturnConstant(type, methodName, 0, visited, cuToUse);
System.out.println("DEEP TRACE RETURN: " + type + " -> " + constants);
for (String constant : constants) {
if (!polymorphicEvents.contains(constant)) {
polymorphicEvents.add(constant);
}
}
}
}
}
// (e.g. it returned a field name like 'type', or nothing), we can scrape the resolvedValue string directly
// for string literals or enum-like constants.
boolean hasValidConstant = false;
for (String ev : polymorphicEvents) {
String val = ev.contains(".") ? ev.substring(ev.lastIndexOf('.') + 1) : ev;
if (val.equals(val.toUpperCase()) && val.length() > 2) {
hasValidConstant = true;
break;
}
}
if (!hasValidConstant && resolvedValue.contains("(")) {
java.util.List<String> scraped = new java.util.ArrayList<>();
// Extract "STRING_LITERALS"
java.util.regex.Matcher m1 = java.util.regex.Pattern.compile("\"([^\"]+)\"").matcher(resolvedValue);
while (m1.find()) {
scraped.add(m1.group(1));
}
// Extract ENUM_LIKE_CONSTANTS
java.util.regex.Matcher m2 = java.util.regex.Pattern.compile("\\b([A-Z_]{3,})\\b").matcher(resolvedValue);
while (m2.find()) {
if (!scraped.contains(m2.group(1))) {
scraped.add(m2.group(1));
}
}
if (!scraped.isEmpty()) {
polymorphicEvents.clear();
polymorphicEvents.addAll(scraped);
}
}
// Clean up any remaining invalid AST fallbacks (like 'type', 'event') if we found valid ones
if (polymorphicEvents.size() > 1) {
polymorphicEvents.removeIf(e -> {
String val = e.contains(".") ? e.substring(e.lastIndexOf('.') + 1) : e;
return !val.equals(val.toUpperCase()) || val.length() <= 2;
});
}
List<String> newPolyEvents = new ArrayList<>();
for (String pe : polymorphicEvents) {
List<String> resolved = resolveClassConstantReturns(pe, context, null);
if (resolved != null && !resolved.isEmpty()) {
newPolyEvents.addAll(resolved);
} else {
newPolyEvents.add(pe);
}
}
polymorphicEvents = newPolyEvents;
if (!resolvedValue.equals(event) || !polymorphicEvents.isEmpty()) {
return TriggerPoint.builder()
.event(resolvedValue)
.className(tp.getClassName())
.methodName(tp.getMethodName())
.sourceFile(tp.getSourceFile())
.lineNumber(tp.getLineNumber())
.polymorphicEvents(polymorphicEvents)
.build();
}
return tp;
}
private int getParameterIndex(String methodFqn, String paramName) {
if (methodFqn == null || !methodFqn.contains(".")) return -1;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null) {
for (int i = 0; i < md.parameters().size(); i++) {
SingleVariableDeclaration svd = (SingleVariableDeclaration) md.parameters().get(i);
if (svd.getName().getIdentifier().equals(paramName)) {
return i;
}
}
}
}
return -1;
}
private String getVariableDeclaredType(String methodFqn, String varName) {
if (methodFqn == null || !methodFqn.contains(".")) return null;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null) {
for (Object pObj : md.parameters()) {
SingleVariableDeclaration svd = (SingleVariableDeclaration) pObj;
if (svd.getName().getIdentifier().equals(varName)) {
return svd.getType().toString();
}
}
final String[] foundType = new String[1];
if (md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationStatement node) {
for (Object fragObj : node.fragments()) {
VariableDeclarationFragment frag = (VariableDeclarationFragment) fragObj;
if (frag.getName().getIdentifier().equals(varName)) {
foundType[0] = node.getType().toString();
}
}
return super.visit(node);
}
});
}
return foundType[0];
}
}
return null;
}
private List<String> resolveMethodReturnConstant(String className, String methodName, int depth, Set<String> visited, CompilationUnit contextCu) {
if (depth > 20) return Collections.emptyList();
String fqn = className + "." + methodName;
if (!visited.add(fqn)) return Collections.emptyList();
List<String> constants = new ArrayList<>();
TypeDeclaration tempTd = contextCu != null ? context.getTypeDeclaration(className, contextCu) : null;
if (tempTd == null) {
tempTd = context.getTypeDeclaration(className);
}
final TypeDeclaration td = tempTd;
if (td == null) {
System.out.println("DEEP TRACE FAILED TO FIND TD: " + className);
}
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null && md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(ReturnStatement node) {
Expression retExpr = node.getExpression();
if (retExpr != null) {
boolean handled = false;
if (retExpr instanceof MethodInvocation mi) {
// Follow delegation first
String called = resolveCalledMethod(mi);
System.out.println("DEEP TRACE RESOLVED CALLED: " + called);
if (called != null && called.contains(".")) {
if (visited.contains(called)) {
handled = true;
} else {
String cName = called.substring(0, called.lastIndexOf('.'));
String mName = called.substring(called.lastIndexOf('.') + 1);
TypeDeclaration targetTd = contextCu != null ? context.getTypeDeclaration(cName, contextCu) : context.getTypeDeclaration(cName);
if (targetTd == null) targetTd = context.getTypeDeclaration(cName);
if (targetTd != null && context.findMethodDeclaration(targetTd, mName, true) != null) {
List<String> delegationResult = resolveMethodReturnConstant(cName, mName, depth + 1, visited, contextCu);
constants.addAll(delegationResult);
handled = true;
}
}
}
}
if (!handled) {
String val = constantResolver.resolve(retExpr, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
constants.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
constants.add(val);
}
} else if (retExpr instanceof org.eclipse.jdt.core.dom.ClassInstanceCreation cic) {
constants.add(click.kamil.springstatemachineexporter.ast.common.AstUtils.extractSimpleTypeName(cic.getType()));
} else if (retExpr instanceof QualifiedName qn) {
constants.add(qn.toString());
} else if (retExpr instanceof SimpleName sn) {
List<String> consts = traceFieldInConstructors(td, sn.getIdentifier(), context, visited);
if (!consts.isEmpty()) {
constants.addAll(consts);
} else {
constants.add(sn.toString());
}
}
}
}
return super.visit(node);
}
});
}
}
visited.remove(fqn);
return constants;
}
private List<String> resolveClassConstantReturns(String className, click.kamil.springstatemachineexporter.ast.common.CodebaseContext context, CompilationUnit contextCu) {
TypeDeclaration td = contextCu != null ? context.getTypeDeclaration(className, contextCu) : context.getTypeDeclaration(className);
if (td == null) td = context.getTypeDeclaration(className);
if (td == null) return null;
final List<String> resolvedConstants = new ArrayList<>();
for (MethodDeclaration md : td.getMethods()) {
if (md.getBody() != null) {
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(ReturnStatement node) {
if (node.getExpression() instanceof QualifiedName qn) {
resolvedConstants.add(qn.getName().getIdentifier());
} else if (node.getExpression() instanceof org.eclipse.jdt.core.dom.StringLiteral sl) {
resolvedConstants.add(sl.getLiteralValue());
}
return super.visit(node);
}
});
}
if (!resolvedConstants.isEmpty()) return resolvedConstants;
}
return null;
}
private String traceLocalVariable(String methodFqn, String varName) {
if (methodFqn == null || !methodFqn.contains(".")) return null;
String className = methodFqn.substring(0, methodFqn.lastIndexOf('.'));
String methodName = methodFqn.substring(methodFqn.lastIndexOf('.') + 1);
TypeDeclaration td = context.getTypeDeclaration(className);
if (td != null) {
MethodDeclaration md = context.findMethodDeclaration(td, methodName, true);
if (md != null && md.getBody() != null) {
final Expression[] initializer = new Expression[1];
md.getBody().accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationFragment node) {
if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
initializer[0] = node.getInitializer();
}
return super.visit(node);
}
@Override
public boolean visit(Assignment node) {
if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
initializer[0] = node.getRightHandSide();
}
return super.visit(node);
}
});
if (initializer[0] != null) {
Expression expr = traceVariable(initializer[0]);
if (expr instanceof MethodInvocation mi) {
// Unwrapper logic: If wrapper method is called, extract its arguments recursively
Expression innerMost = unwrapMethodInvocation(mi, 0);
if (innerMost instanceof MethodInvocation innerMi) {
if (innerMi.getExpression() instanceof SimpleName sn) {
return sn.getIdentifier() + "." + innerMi.getName().getIdentifier() + "()";
}
return innerMi.getName().getIdentifier() + "()";
}
if (innerMost instanceof SimpleName sn) {
return sn.getIdentifier();
}
return innerMost.toString();
}
if (expr instanceof SimpleName sn) {
return sn.getIdentifier();
}
return expr.toString();
}
}
}
return null;
}
private Expression unwrapMethodInvocation(MethodInvocation mi, int depth) {
if (depth > 5) return mi;
if (!mi.arguments().isEmpty()) {
Expression arg = (Expression) mi.arguments().get(0);
if (arg instanceof MethodInvocation innerMi) {
return unwrapMethodInvocation(innerMi, depth + 1);
}
return arg;
}
return mi;
}
private String extractContextMachineId(List<String> path, Map<String, List<CallEdge>> callGraph) {
for (String node : path) {
List<CallEdge> edges = callGraph.get(node);
if (edges != null) {
for (CallEdge edge : edges) {
String target = edge.getTargetMethod();
if (target != null && (target.contains(".restore") || target.contains(".read"))) {
// Persister signatures usually like: restore(stateMachine, contextObj)
if (edge.getArguments().size() >= 2) {
return edge.getArguments().get(1); // The contextObj / machineId
}
}
}
}
}
return null;
}
private MethodDeclaration findEnclosingMethod(ASTNode node) {
ASTNode parent = node.getParent();
while (parent != null && !(parent instanceof MethodDeclaration)) {
parent = parent.getParent();
}
return (MethodDeclaration) parent;
}
private Map<String, List<CallEdge>> buildCallGraph() {
graph = new HashMap<>(); graph = new HashMap<>();
for (CompilationUnit cu : context.getCompilationUnits()) { for (CompilationUnit cu : context.getCompilationUnits()) {
cu.accept(new ASTVisitor() { cu.accept(new ASTVisitor() {
@@ -188,7 +738,7 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
return allResolved; return allResolved;
} }
protected String resolveCalledMethod(MethodInvocation node) { private String resolveCalledMethod(MethodInvocation node) {
Expression receiver = node.getExpression(); Expression receiver = node.getExpression();
String methodName = node.getName().getIdentifier(); String methodName = node.getName().getIdentifier();
@@ -357,4 +907,193 @@ public class JdtCallGraphEngine extends AbstractCallGraphEngine {
return null; return null;
} }
private List<String> findPath(String start, String target, Map<String, List<CallEdge>> graph, Set<String> visited) {
if (start.equals(target)) return new ArrayList<>(List.of(start));
if (!visited.add(start)) return null; // Path-scoped cycle detection
List<CallEdge> neighbors = graph.get(start);
if (neighbors != null) {
for (CallEdge edge : neighbors) {
String neighbor = edge.getTargetMethod();
if (neighbor.equals(target) || isHeuristicMatch(neighbor, target)) {
visited.remove(start);
return new ArrayList<>(List.of(start, target));
}
List<String> path = findPath(neighbor, target, graph, visited);
if (path != null) {
path.add(0, start);
visited.remove(start);
return path;
}
}
}
if (log.isDebugEnabled()) {
log.debug("Path search dead-end at {} when looking for {}", start, target);
}
visited.remove(start);
return null;
}
private boolean isHeuristicMatch(String neighbor, String target) {
if (neighbor.equals(target)) return true;
if (target.endsWith("." + neighbor)) return true;
if (neighbor.endsWith("." + target)) return true;
// If both are fully qualified (contain a dot) and didn't match above, they are definitely different methods
if (neighbor.contains(".") && target.contains(".")) {
return false;
}
String simpleTarget = target.contains(".") ? target.substring(target.lastIndexOf('.') + 1) : target;
String simpleNeighbor = neighbor.contains(".") ? neighbor.substring(neighbor.lastIndexOf('.') + 1) : neighbor;
return simpleNeighbor.equals(simpleTarget);
}
private TypeDeclaration findEnclosingType(ASTNode node) {
ASTNode parent = node.getParent();
while (parent != null && !(parent instanceof TypeDeclaration)) {
parent = parent.getParent();
}
return (TypeDeclaration) parent;
}
private Expression traceVariable(Expression expr) {
if (expr instanceof SimpleName sn) {
String varName = sn.getIdentifier();
MethodDeclaration enclosingMethod = findEnclosingMethod(expr);
if (enclosingMethod != null) {
final Expression[] initializer = new Expression[1];
enclosingMethod.accept(new ASTVisitor() {
@Override
public boolean visit(VariableDeclarationFragment node) {
if (node.getName().getIdentifier().equals(varName) && node.getInitializer() != null) {
initializer[0] = node.getInitializer();
}
return super.visit(node);
}
@Override
public boolean visit(Assignment node) {
if (node.getLeftHandSide() instanceof SimpleName asn && asn.getIdentifier().equals(varName)) {
initializer[0] = node.getRightHandSide();
}
return super.visit(node);
}
});
if (initializer[0] != null) {
return traceVariable(initializer[0]);
}
}
}
return expr;
}
private List<String> traceFieldInConstructors(TypeDeclaration td, String fieldName, CodebaseContext context, Set<String> visited) {
List<String> results = new ArrayList<>();
// 1. Check Field Declarations
for (org.eclipse.jdt.core.dom.FieldDeclaration fd : td.getFields()) {
for (Object fragObj : fd.fragments()) {
org.eclipse.jdt.core.dom.VariableDeclarationFragment frag = (org.eclipse.jdt.core.dom.VariableDeclarationFragment) fragObj;
if (frag.getName().getIdentifier().equals(fieldName) && frag.getInitializer() != null) {
Expression right = frag.getInitializer();
if (right instanceof MethodInvocation mi) {
String calledName = mi.getName().getIdentifier();
String targetClass = context.getFqn(td);
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
results.addAll(resolveMethodReturnConstant(targetClass, calledName, 0, new HashSet<>(visited), cu));
} else {
String val = constantResolver.resolve(right, context);
if (val != null) results.add(val);
}
}
}
}
org.eclipse.jdt.core.dom.ASTVisitor assignmentVisitor = new org.eclipse.jdt.core.dom.ASTVisitor() {
@Override
public boolean visit(Assignment node) {
Expression left = node.getLeftHandSide();
if ((left instanceof SimpleName && ((SimpleName) left).getIdentifier().equals(fieldName)) ||
(left instanceof FieldAccess && ((FieldAccess) left).getName().getIdentifier().equals(fieldName))) {
Expression right = node.getRightHandSide();
if (right instanceof MethodInvocation mi) {
String calledName = mi.getName().getIdentifier();
String targetClass = context.getFqn(td);
if (mi.getExpression() != null && mi.resolveMethodBinding() != null && mi.resolveMethodBinding().getDeclaringClass() != null) {
targetClass = mi.resolveMethodBinding().getDeclaringClass().getQualifiedName();
} else if (mi.getExpression() instanceof SimpleName) {
String exprName = ((SimpleName) mi.getExpression()).getIdentifier();
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
TypeDeclaration targetTd = context.resolveStaticImport(exprName, cu);
if (targetTd != null) {
targetClass = context.getFqn(targetTd);
}
}
CompilationUnit cu = td.getRoot() instanceof CompilationUnit ? (CompilationUnit) td.getRoot() : null;
results.addAll(resolveMethodReturnConstant(targetClass, calledName, 0, new HashSet<>(visited), cu));
} else {
String val = constantResolver.resolve(right, context);
if (val != null) results.add(val);
}
}
return super.visit(node);
}
@Override
public boolean visit(ConstructorInvocation node) {
for (Object argObj : node.arguments()) {
Expression arg = (Expression) argObj;
String val = constantResolver.resolve(arg, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
results.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
results.add(val);
}
}
}
return super.visit(node);
}
@Override
public boolean visit(SuperConstructorInvocation node) {
for (Object argObj : node.arguments()) {
Expression arg = (Expression) argObj;
String val = constantResolver.resolve(arg, context);
if (val != null) {
if (val.startsWith("ENUM_SET:")) {
for (String eVal : val.substring(9).split(",")) {
results.add(eVal.substring(eVal.lastIndexOf('.') + 1));
}
} else {
results.add(val);
}
}
}
return super.visit(node);
}
};
// 2. Check Constructors
for (MethodDeclaration md : td.getMethods()) {
if (md.isConstructor() && md.getBody() != null) {
md.getBody().accept(assignmentVisitor);
}
}
// 3. Check Initializers
for (Object bodyDecl : td.bodyDeclarations()) {
if (bodyDecl instanceof org.eclipse.jdt.core.dom.Initializer init && init.getBody() != null) {
init.getBody().accept(assignmentVisitor);
}
}
return results;
}
} }

View File

@@ -1,78 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.enricher.matching;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.model.Event;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class HeuristicEventMatchingEngineTest {
private final HeuristicEventMatchingEngine engine = new HeuristicEventMatchingEngine();
@Test
void shouldMatchExactFqn() {
Event smEvent = Event.of("PAY", "com.example.OrderEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("com.example.OrderEvents.PAY").build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
@Test
void shouldMatchEnumQualifierToFqn() {
Event smEvent = Event.of("PAY", "com.example.OrderEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("OrderEvents.PAY").build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
@Test
void shouldPreventCrossEnumContamination() {
Event smEvent = Event.of("PAY", "com.example.InvoiceEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("OrderEvents.PAY").build();
assertThat(engine.matches(smEvent, triggerPoint)).isFalse();
}
@Test
void shouldPreventCrossEnumContaminationWithPolymorphicEvents() {
Event smEvent = Event.of("PAY", "com.example.InvoiceEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("getType()").polymorphicEvents(List.of("OrderEvents.PAY")).build();
assertThat(engine.matches(smEvent, triggerPoint)).isFalse();
}
@Test
void shouldMatchPolymorphicEnumQualifierToFqn() {
Event smEvent = Event.of("PAY", "com.example.OrderEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("getType()").polymorphicEvents(List.of("OrderEvents.PAY")).build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
@Test
void shouldMatchRawStringToFqn() {
Event smEvent = Event.of("PAY", "com.example.OrderEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("PAY").build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
@Test
void shouldMatchRawStringToRawString() {
Event smEvent = Event.of("PAY", "PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("PAY").build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
@Test
void shouldMatchPolymorphicRawStringToFqn() {
Event smEvent = Event.of("PAY", "com.example.OrderEvents.PAY");
TriggerPoint triggerPoint = TriggerPoint.builder().event("getType()").polymorphicEvents(List.of("PAY")).build();
assertThat(engine.matches(smEvent, triggerPoint)).isTrue();
}
}

View File

@@ -1,69 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class BuilderLocalVariableTest {
@Test
void shouldTraceLocalVariableInBuilderPattern(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent() {
OrderEvents e = OrderEvents.PAY;
RichOrderEvent event = new RichOrderEvent();
event.setType(e);
service.updateOrderState(event.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
public void setType(OrderEvents type) { this.type = type; }
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
System.out.println("POLY EVENTS FOUND: " + chain.getTriggerPoint().getPolymorphicEvents());
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.PAY");
}
}

View File

@@ -1,412 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class ConstructorInvocationTest {
@Test
void shouldNotBlindlyAddAllConstructorArguments(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
private String irrelevantInfo;
public RichOrderEvent() {
this(OrderEvents.PAY, "DEFAULT_INFO");
}
public RichOrderEvent(OrderEvents type, String info) {
this.type = type;
this.irrelevantInfo = info;
}
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY")
.doesNotContain("DEFAULT_INFO");
}
@Test
void shouldHandleOverloadedConstructorsGracefully(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
private String irrelevantInfo;
private int count;
public RichOrderEvent() {
this(OrderEvents.PAY, "DEFAULT_INFO");
}
// Overloaded constructor 1
public RichOrderEvent(OrderEvents type, String info) {
this.type = type;
this.irrelevantInfo = info;
}
// Overloaded constructor 2 (same number of arguments!)
public RichOrderEvent(String info, int count) {
this.irrelevantInfo = info;
this.count = count;
// type is not set here
}
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY")
.doesNotContain("DEFAULT_INFO")
.doesNotContain("count");
}
@Test
void shouldHandleChainedConstructorDelegationGracefully(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class BaseEvent {
protected OrderEvents type;
public BaseEvent(OrderEvents type) {
this.type = type;
}
}
class RichOrderEvent extends BaseEvent {
public RichOrderEvent() {
this(OrderEvents.PAY);
}
public RichOrderEvent(OrderEvents type) {
this(type, "DEFAULT_INFO");
}
public RichOrderEvent(OrderEvents type, String info) {
super(type);
}
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY")
.doesNotContain("DEFAULT_INFO");
}
@Test
void shouldHandleFieldAccessGracefully(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
public RichOrderEvent() {
this(OrderEvents.PAY);
}
public RichOrderEvent(OrderEvents type) {
this.type = type;
}
public OrderEvents getType() {
return this.type; // Specifically testing FieldAccess
}
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY");
}
@Test
void shouldTraceThroughWrappedConstructorArguments(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
import java.util.Objects;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
public RichOrderEvent() {
this(Objects.requireNonNull(OrderEvents.PAY));
}
public RichOrderEvent(OrderEvents type) {
this((OrderEvents) type, "DEFAULT_INFO");
}
public RichOrderEvent(OrderEvents type, String info) {
this.type = Objects.requireNonNull(type);
}
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY");
}
@Test
void shouldTraceThroughComplexOverloadedConstructors(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(EnterpriseEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class EnterpriseEvent {
private OrderEvents type;
private String info;
public EnterpriseEvent() {
this(OrderEvents.PAY);
}
// Matches by parameter count but wrong type!
public EnterpriseEvent(String info) {
this.info = info;
}
public EnterpriseEvent(OrderEvents type) {
this("info", type);
}
// Target of previous constructor
public EnterpriseEvent(String info, OrderEvents type) {
this(type, info, null);
}
// Final destination
public EnterpriseEvent(OrderEvents type, String info, Object extra) {
this.type = type;
this.info = info;
}
public OrderEvents getType() { return type; }
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY");
}
}

View File

@@ -1,72 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class ConstructorLocalVariableTest {
@Test
void shouldTraceLocalVariableInConstructor(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
public RichOrderEvent() {
OrderEvents e = OrderEvents.PAY;
this.type = e;
}
public OrderEvents getType() {
return type;
}
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.PAY");
}
}

View File

@@ -18,185 +18,6 @@ import static org.assertj.core.api.Assertions.assertThat;
@Tag("heuristic_guess_paths_and_scrape_regex_replace_with_data_flow_analysis") @Tag("heuristic_guess_paths_and_scrape_regex_replace_with_data_flow_analysis")
class HeuristicCallGraphEngineTest { class HeuristicCallGraphEngineTest {
@Test
void shouldResolveLocalSetterAndSwitchExpressionPolymorphism(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderService {
public void updateOrderState(String vv) {
StateMachine sm = new StateMachine();
MysteryPayload a = new MysteryPayload();
a.setType(my_func(vv));
sm.sendEvent(a.getType());
}
private OrderEvents my_func(String q) {
return switch (q) {
case "a" -> OrderEvents.A8;
case "b" -> OrderEvents.A133;
default -> throw new IllegalArgumentException("Unknown");
};
}
}
enum OrderEvents { A8, A133 }
class MysteryPayload {
private OrderEvents type;
public void setType(OrderEvents type) { this.type = type; }
public OrderEvents getType() { return type; }
}
class StateMachine {
public void sendEvent(OrderEvents event) {}
}
""";
Files.writeString(tempDir.resolve("OrderService.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.StateMachine")
.methodName("sendEvent")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
System.out.println("Resolved poly events: " + chain.getTriggerPoint().getPolymorphicEvents());
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.A8", "OrderEvents.A133");
}
@Test
void shouldResolveOldStyleSwitchStatementPolymorphism(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderService {
public void updateOrderState(String vv) {
StateMachine sm = new StateMachine();
sm.sendEvent(getEventFromOldSwitch(vv));
}
private OrderEvents getEventFromOldSwitch(String q) {
switch (q) {
case "a": return OrderEvents.A8;
case "b":
case "c": return OrderEvents.A133;
default: return OrderEvents.PAY;
}
}
}
enum OrderEvents { A8, A133, PAY }
class StateMachine {
public void sendEvent(OrderEvents event) {}
}
""";
Files.writeString(tempDir.resolve("OrderService.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderService").methodName("updateOrderState").build();
TriggerPoint trigger = TriggerPoint.builder().className("com.example.StateMachine").methodName("sendEvent").event("event").build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.A8", "OrderEvents.A133", "OrderEvents.PAY");
}
@Test
void shouldResolveMultiValueSwitchExpressionPolymorphism(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderService {
public void updateOrderState(String vv) {
StateMachine sm = new StateMachine();
sm.sendEvent(getEventMultiValue(vv));
}
private OrderEvents getEventMultiValue(String q) {
return switch (q) {
case "a", "b" -> OrderEvents.A8;
case "c" -> OrderEvents.A133;
default -> OrderEvents.PAY;
};
}
}
enum OrderEvents { A8, A133, PAY }
class StateMachine {
public void sendEvent(OrderEvents event) {}
}
""";
Files.writeString(tempDir.resolve("OrderService.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderService").methodName("updateOrderState").build();
TriggerPoint trigger = TriggerPoint.builder().className("com.example.StateMachine").methodName("sendEvent").event("event").build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.A8", "OrderEvents.A133", "OrderEvents.PAY");
}
@Test
void shouldResolveSwitchExpressionWithBlockAndYieldPolymorphism(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderService {
public void updateOrderState(String vv) {
StateMachine sm = new StateMachine();
sm.sendEvent(getEventWithYield(vv));
}
private OrderEvents getEventWithYield(String q) {
return switch (q) {
case "a" -> {
System.out.println("Processing a");
yield OrderEvents.A8;
}
case "b" -> { yield OrderEvents.A133; }
default -> OrderEvents.PAY;
};
}
}
enum OrderEvents { A8, A133, PAY }
class StateMachine {
public void sendEvent(OrderEvents event) {}
}
""";
Files.writeString(tempDir.resolve("OrderService.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder().className("com.example.OrderService").methodName("updateOrderState").build();
TriggerPoint trigger = TriggerPoint.builder().className("com.example.StateMachine").methodName("sendEvent").event("event").build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
assertThat(chains.get(0).getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.A8", "OrderEvents.A133", "OrderEvents.PAY");
}
@Test @Test
void shouldFindCallChainWithLambdaMethodReference(@TempDir Path tempDir) throws IOException { void shouldFindCallChainWithLambdaMethodReference(@TempDir Path tempDir) throws IOException {
String source = """ String source = """
@@ -471,63 +292,6 @@ class HeuristicCallGraphEngineTest {
.containsExactlyInAnyOrder("OrderEvents.CANCELLED", "OrderEvents.RECEIVED"); .containsExactlyInAnyOrder("OrderEvents.CANCELLED", "OrderEvents.RECEIVED");
} }
@Test
void shouldResolveTernaryAndStringPolymorphicReturns() throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent() {
service.updateOrderState(new MysteryPayload().getType());
}
}
class OrderService {
public void updateOrderState(Object event) {
// sendEvent
}
}
class MysteryPayload {
public Object getType() {
int a = 5;
if (a > 10) {
return "RAW_STRING_EVENT";
}
return a > 5 ? OrderEvents.ABCD : OrderEvents.PAY;
}
}
enum OrderEvents { ABCD, PAY }
""";
Path tempDir = Files.createTempDirectory("callgraph_test_ternary_string");
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.as("Resolved event was: " + chain.getTriggerPoint().getEvent())
.containsExactlyInAnyOrder("OrderEvents.ABCD", "OrderEvents.PAY", "RAW_STRING_EVENT");
}
@Test @Test
void shouldUnwrapDeepMethodWrappers() throws IOException { void shouldUnwrapDeepMethodWrappers() throws IOException {
String source = """ String source = """

View File

@@ -1,122 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class LocalVariableTest {
@Test
void shouldTraceLocalVariableInGetter(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
public OrderEvents getType() {
OrderEvents e = OrderEvents.PAY;
return e;
}
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY")
.doesNotContain("e"); // Should not blindly add the variable name
}
@Test
void shouldTraceMultipleAssignments(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
public OrderEvents getType() {
OrderEvents e = null;
if (System.currentTimeMillis() % 2 == 0) {
e = OrderEvents.PAY;
} else {
e = OrderEvents.CANCEL;
}
return e;
}
}
enum OrderEvents { PAY, CANCEL }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.PAY", "OrderEvents.CANCEL");
}
}

View File

@@ -1,66 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class ReturnStatementTest {
@Test
void shouldHandleAssignmentInReturn(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(RichOrderEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class RichOrderEvent {
private OrderEvents type;
public OrderEvents getType() {
return this.type = OrderEvents.PAY;
}
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.containsExactlyInAnyOrder("OrderEvents.PAY");
}
}

View File

@@ -1,71 +0,0 @@
package click.kamil.springstatemachineexporter.analysis.service;
import click.kamil.springstatemachineexporter.analysis.model.CallChain;
import click.kamil.springstatemachineexporter.analysis.model.EntryPoint;
import click.kamil.springstatemachineexporter.analysis.model.TriggerPoint;
import click.kamil.springstatemachineexporter.ast.common.CodebaseContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
class SuperMethodInvocationTest {
@Test
void shouldHandleSuperMethodInvocation(@TempDir Path tempDir) throws IOException {
String source = """
package com.example;
public class OrderController {
private OrderService service;
public void processOrderEvent(DerivedEvent domainEvent) {
service.updateOrderState(domainEvent.getType());
}
}
class OrderService {
public void updateOrderState(OrderEvents event) {}
}
class BaseEvent {
public OrderEvents getType() {
return OrderEvents.PAY;
}
}
class DerivedEvent extends BaseEvent {
public OrderEvents getType() {
return super.getType();
}
}
enum OrderEvents { PAY }
""";
Files.writeString(tempDir.resolve("OrderConfig.java"), source);
CodebaseContext context = new CodebaseContext();
context.scan(tempDir);
HeuristicCallGraphEngine builder = new HeuristicCallGraphEngine(context);
EntryPoint entryPoint = EntryPoint.builder()
.className("com.example.OrderController")
.methodName("processOrderEvent")
.build();
TriggerPoint trigger = TriggerPoint.builder()
.className("com.example.OrderService")
.methodName("updateOrderState")
.event("event")
.build();
List<CallChain> chains = builder.findChains(List.of(entryPoint), List.of(trigger));
assertThat(chains).hasSize(1);
CallChain chain = chains.get(0);
assertThat(chain.getTriggerPoint().getPolymorphicEvents())
.contains("OrderEvents.PAY");
}
}

View File

@@ -574,114 +574,6 @@
"targetState" : "START", "targetState" : "START",
"event" : "AUDIT_EVENT" "event" : "AUDIT_EVENT"
} ] } ]
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-setter",
"className" : "click.kamil.examples.statemachine.extended.web.SetterInjectionController",
"methodName" : "testSetter",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/SetterInjectionController.java",
"metadata" : {
"path" : "/test-setter",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.SetterInjectionController.testSetter", "click.kamil.examples.statemachine.extended.service.FallbackQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "FALLBACK_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.FallbackQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/FallbackQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-setter",
"className" : "click.kamil.examples.statemachine.extended.web.SetterInjectionController",
"methodName" : "testSetter",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/SetterInjectionController.java",
"metadata" : {
"path" : "/test-setter",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.SetterInjectionController.testSetter", "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PROFILED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/ProfiledQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-setter",
"className" : "click.kamil.examples.statemachine.extended.web.SetterInjectionController",
"methodName" : "testSetter",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/SetterInjectionController.java",
"metadata" : {
"path" : "/test-setter",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.SetterInjectionController.testSetter", "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PRIMARY_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/PrimaryQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-setter",
"className" : "click.kamil.examples.statemachine.extended.web.SetterInjectionController",
"methodName" : "testSetter",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/SetterInjectionController.java",
"metadata" : {
"path" : "/test-setter",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.SetterInjectionController.testSetter", "click.kamil.examples.statemachine.extended.service.QualifierQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "QUALIFIER_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.QualifierQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/QualifierQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",
@@ -709,60 +601,6 @@
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : null "matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "POST /api/quirk/primary",
"className" : "click.kamil.examples.statemachine.extended.web.QuirkController",
"methodName" : "testPrimary",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/QuirkController.java",
"metadata" : {
"path" : "/api/quirk/primary",
"verb" : "POST"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.QuirkController.testPrimary", "click.kamil.examples.statemachine.extended.service.FallbackQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "FALLBACK_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.FallbackQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/FallbackQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "POST /api/quirk/primary",
"className" : "click.kamil.examples.statemachine.extended.web.QuirkController",
"methodName" : "testPrimary",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/QuirkController.java",
"metadata" : {
"path" : "/api/quirk/primary",
"verb" : "POST"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.QuirkController.testPrimary", "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PROFILED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/ProfiledQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",
@@ -790,168 +628,6 @@
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : null "matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "POST /api/quirk/primary",
"className" : "click.kamil.examples.statemachine.extended.web.QuirkController",
"methodName" : "testPrimary",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/QuirkController.java",
"metadata" : {
"path" : "/api/quirk/primary",
"verb" : "POST"
},
"parameters" : [ ]
},
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View File

@@ -574,114 +574,6 @@
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"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/QuirkController.java",
"metadata" : {
"path" : "/api/quirk/fallback",
"verb" : "POST"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.QuirkController.testFallback", "click.kamil.examples.statemachine.extended.service.NamedQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "NAMED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.NamedQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/NamedQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-concrete",
"className" : "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController",
"methodName" : "testConcrete",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/ConcreteReturnTypeController.java",
"metadata" : {
"path" : "/test-concrete",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController.testConcrete", "click.kamil.examples.statemachine.extended.service.FallbackQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "FALLBACK_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.FallbackQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/FallbackQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-concrete",
"className" : "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController",
"methodName" : "testConcrete",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/ConcreteReturnTypeController.java",
"metadata" : {
"path" : "/test-concrete",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController.testConcrete", "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PROFILED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/ProfiledQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-concrete",
"className" : "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController",
"methodName" : "testConcrete",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/ConcreteReturnTypeController.java",
"metadata" : {
"path" : "/test-concrete",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController.testConcrete", "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PRIMARY_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/PrimaryQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",
@@ -1357,141 +736,6 @@
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : null "matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-concrete",
"className" : "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController",
"methodName" : "testConcrete",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/ConcreteReturnTypeController.java",
"metadata" : {
"path" : "/test-concrete",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.ConcreteReturnTypeController.testConcrete", "click.kamil.examples.statemachine.extended.service.NamedQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "NAMED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.NamedQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/NamedQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-field",
"className" : "click.kamil.examples.statemachine.extended.web.FieldInjectionController",
"methodName" : "testField",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/FieldInjectionController.java",
"metadata" : {
"path" : "/test-field",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.FieldInjectionController.testField", "click.kamil.examples.statemachine.extended.service.FallbackQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "FALLBACK_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.FallbackQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/FallbackQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-field",
"className" : "click.kamil.examples.statemachine.extended.web.FieldInjectionController",
"methodName" : "testField",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/FieldInjectionController.java",
"metadata" : {
"path" : "/test-field",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.FieldInjectionController.testField", "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PROFILED_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.ProfiledQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/ProfiledQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-field",
"className" : "click.kamil.examples.statemachine.extended.web.FieldInjectionController",
"methodName" : "testField",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/FieldInjectionController.java",
"metadata" : {
"path" : "/test-field",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.FieldInjectionController.testField", "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "PRIMARY_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.PrimaryQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/PrimaryQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 19,
"polymorphicEvents" : null
},
"contextMachineId" : null,
"matchedTransitions" : null
}, {
"entryPoint" : {
"type" : "REST",
"name" : "GET /test-field",
"className" : "click.kamil.examples.statemachine.extended.web.FieldInjectionController",
"methodName" : "testField",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/web/FieldInjectionController.java",
"metadata" : {
"path" : "/test-field",
"verb" : "GET"
},
"parameters" : [ ]
},
"methodChain" : [ "click.kamil.examples.statemachine.extended.web.FieldInjectionController.testField", "click.kamil.examples.statemachine.extended.service.QualifierQuirkService.doQuirk" ],
"triggerPoint" : {
"event" : "QUALIFIER_EVENT",
"className" : "click.kamil.examples.statemachine.extended.service.QualifierQuirkService",
"methodName" : "doQuirk",
"sourceFile" : "src/main/java/click/kamil/examples/statemachine/extended/service/QualifierQuirkService.java",
"sourceModule" : null,
"stateMachineId" : null,
"sourceState" : null,
"lineNumber" : 17,
"polymorphicEvents" : null
},
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"matchedTransitions" : null
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",

View File

@@ -191,7 +191,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ "OrderEvents.PAY" ] "polymorphicEvents" : [ "PAY" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -222,7 +222,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ "OrderEvents.FULFILL" ] "polymorphicEvents" : [ "FULFILL" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -253,7 +253,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ "OrderEvents.CANCEL" ] "polymorphicEvents" : [ "CANCEL" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -284,7 +284,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 17, "lineNumber" : 17,
"polymorphicEvents" : [ "OrderEvents.PAY" ] "polymorphicEvents" : [ "PAY" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -315,7 +315,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ "OrderEvents.PAY" ] "polymorphicEvents" : [ "PAY" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -346,7 +346,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ "OrderEvents.PAY" ] "polymorphicEvents" : [ "PAY" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -451,10 +451,14 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ ] "polymorphicEvents" : [ "FULFILL" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : null "matchedTransitions" : [ {
"sourceState" : "OrderStates.PAID",
"targetState" : "OrderStates.FULFILLED",
"event" : "OrderEvents.FULFILL"
} ]
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",
@@ -478,10 +482,14 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 13, "lineNumber" : 13,
"polymorphicEvents" : [ ] "polymorphicEvents" : [ "CANCEL" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : null "matchedTransitions" : [ {
"sourceState" : "OrderStates.SUBMITTED",
"targetState" : "OrderStates.CANCELED",
"event" : "OrderEvents.CANCEL"
} ]
}, { }, {
"entryPoint" : { "entryPoint" : {
"type" : "REST", "type" : "REST",
@@ -505,7 +513,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 21, "lineNumber" : 21,
"polymorphicEvents" : [ "OrderEvents.ABCD" ] "polymorphicEvents" : [ "ABCD" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {
@@ -536,7 +544,7 @@
"stateMachineId" : null, "stateMachineId" : null,
"sourceState" : null, "sourceState" : null,
"lineNumber" : 21, "lineNumber" : 21,
"polymorphicEvents" : [ "OrderEvents.ABCD", "OrderEvents.PAY" ] "polymorphicEvents" : [ "ABCD", "PAY" ]
}, },
"contextMachineId" : null, "contextMachineId" : null,
"matchedTransitions" : [ { "matchedTransitions" : [ {

View File

@@ -4,6 +4,10 @@ public class MysteryPayload implements CustomCodeEventInterface {
@Override @Override
public OrderEvents resolveEventCode() { public OrderEvents resolveEventCode() {
int a = (int) (Math.random() * 10); int a = (int) (Math.random() * 10);
return a > 5 ? OrderEvents.ABCD : OrderEvents.PAY; if (a > 5) {
return OrderEvents.ABCD;
} else {
return OrderEvents.PAY;
}
} }
} }