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fix #75
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oldratlee committed Jun 25, 2017
1 parent e8b6bb9 commit cd1e844
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Showing 3 changed files with 58 additions and 26 deletions.
21 changes: 20 additions & 1 deletion src/main/java/com/alibaba/ttl/TtlCallable.java
Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,6 @@ public final class TtlCallable<V> implements Callable<V> {
private final Callable<V> callable;
private final boolean releaseTtlValueReferenceAfterCall;


private TtlCallable(Callable<V> callable, boolean releaseTtlValueReferenceAfterCall) {
this.copiedRef = new AtomicReference<Map<TransmittableThreadLocal<?>, Object>>(TransmittableThreadLocal.copy());
this.callable = callable;
Expand Down Expand Up @@ -58,6 +57,26 @@ public Callable<V> getCallable() {
return callable;
}

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;

TtlCallable<?> that = (TtlCallable<?>) o;

return callable.equals(that.callable);
}

@Override
public int hashCode() {
return callable.hashCode();
}

@Override
public String toString() {
return this.getClass().getName() + " - " + callable.toString();
}

/**
* Factory method, wrapper input {@link Callable} to {@link TtlCallable}.
* <p>
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20 changes: 20 additions & 0 deletions src/main/java/com/alibaba/ttl/TtlRunnable.java
Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,26 @@ public Runnable getRunnable() {
return runnable;
}

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;

TtlRunnable that = (TtlRunnable) o;

return runnable.equals(that.runnable);
}

@Override
public int hashCode() {
return runnable.hashCode();
}

@Override
public String toString() {
return this.getClass().getName() + " - " + runnable.toString();
}

/**
* Factory method, wrapper input {@link Runnable} to {@link TtlRunnable}.
*
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43 changes: 18 additions & 25 deletions src/main/java/com/alibaba/ttl/threadpool/agent/TtlTransformer.java
Original file line number Diff line number Diff line change
Expand Up @@ -35,42 +35,44 @@ public class TtlTransformer implements ClassFileTransformer {
private static final String TTL_RUNNABLE_CLASS_NAME = TtlRunnable.class.getName();
private static final String TTL_CALLABLE_CLASS_NAME = TtlCallable.class.getName();

private static final String THREAD_POOL_CLASS_FILE = "java.util.concurrent.ThreadPoolExecutor".replace('.', '/');
private static final String SCHEDULER_CLASS_FILE = "java.util.concurrent.ScheduledThreadPoolExecutor".replace('.', '/');

private static final String TIMER_TASK_CLASS_FILE = "java.util.TimerTask".replace('.', '/');
private static final byte[] EMPTY_BYTE_ARRAY = {};
private static Set<String> EXECUTOR_CLASS_NAMES = new HashSet<String>();

private static String toClassName(String classFile) {
return classFile.replace('/', '.');
static {
EXECUTOR_CLASS_NAMES.add("java.util.concurrent.ThreadPoolExecutor");
EXECUTOR_CLASS_NAMES.add("java.util.concurrent.ScheduledThreadPoolExecutor");
}

private static final String TIMER_TASK_CLASS_NAME = "java.util.TimerTask";

private static final byte[] EMPTY_BYTE_ARRAY = {};

@Override
public byte[] transform(ClassLoader loader, String classFile, Class<?> classBeingRedefined,
ProtectionDomain protectionDomain, byte[] classFileBuffer) throws IllegalClassFormatException {
try {
// Lambda has no class file, no need to transform, just return.
if(classFile == null) {
if (classFile == null) {
return EMPTY_BYTE_ARRAY;
}

final String className = toClassName(classFile);
if (THREAD_POOL_CLASS_FILE.equals(classFile) || SCHEDULER_CLASS_FILE.equals(classFile)) {
if (EXECUTOR_CLASS_NAMES.contains(className)) {
logger.info("Transforming class " + className);
CtClass clazz = getCtClass(classFileBuffer, loader);

for (CtMethod method : clazz.getDeclaredMethods()) {
updateMethod(clazz, method);
}
return clazz.toBytecode();
} else if (TIMER_TASK_CLASS_FILE.equals(classFile)) {
} else if (TIMER_TASK_CLASS_NAME.equals(className)) {
CtClass clazz = getCtClass(classFileBuffer, loader);
while (true) {
String name = clazz.getSuperclass().getName();
if (Object.class.getName().equals(name)) {
break;
}
if (TIMER_TASK_CLASS_FILE.equals(name)) {
if (TIMER_TASK_CLASS_NAME.equals(name)) {
logger.info("Transforming class " + className);
// FIXME add code here
return EMPTY_BYTE_ARRAY;
Expand All @@ -88,7 +90,11 @@ public byte[] transform(ClassLoader loader, String classFile, Class<?> classBein
return EMPTY_BYTE_ARRAY;
}

private CtClass getCtClass(byte[] classFileBuffer, ClassLoader classLoader) throws IOException {
private static String toClassName(String classFile) {
return classFile.replace('/', '.');
}

private static CtClass getCtClass(byte[] classFileBuffer, ClassLoader classLoader) throws IOException {
ClassPool classPool = new ClassPool(true);
if (null != classLoader) {
classPool.appendClassPath(new LoaderClassPath(classLoader));
Expand All @@ -99,20 +105,7 @@ private CtClass getCtClass(byte[] classFileBuffer, ClassLoader classLoader) thro
return clazz;
}

static final Set<String> updateMethodNames = new HashSet<String>();

static {
updateMethodNames.add("execute");
updateMethodNames.add("submit");
updateMethodNames.add("schedule");
updateMethodNames.add("scheduleAtFixedRate");
updateMethodNames.add("scheduleWithFixedDelay");
}

static void updateMethod(CtClass clazz, CtMethod method) throws NotFoundException, CannotCompileException {
if (!updateMethodNames.contains(method.getName())) {
return;
}
private static void updateMethod(CtClass clazz, CtMethod method) throws NotFoundException, CannotCompileException {
if (method.getDeclaringClass() != clazz) {
return;
}
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