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Fix a weird compilation error in DefaultChannelPipeline

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probably a compiler bug - working around
This commit is contained in:
Trustin Lee 2012-06-08 10:57:38 +09:00
parent 748de5ea83
commit 8970ee751c
1 changed files with 55 additions and 58 deletions
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113
transport/src/main/java/io/netty/channel/DefaultChannelPipeline.java
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@ -93,14 +93,12 @@ public class DefaultChannelPipeline implements ChannelPipeline {
addFirst0(name, nextCtx, newCtx);
return this;
}
future = newCtx.executor().submit(new AsyncPipelineModification() {
future = newCtx.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
checkDuplicateName(name);
addFirst0(name, nextCtx, newCtx);
}
});
}
// Call Future.get() outside of the synchronized block to prevent dead-lock
@ -153,8 +151,7 @@ public class DefaultChannelPipeline implements ChannelPipeline {
addLast0(name, oldTail, newTail);
return this;
} else {
future = newTail.executor().submit(new AsyncPipelineModification() {
future = newTail.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
checkDuplicateName(name);
@ -210,15 +207,13 @@ public class DefaultChannelPipeline implements ChannelPipeline {
addBefore0(name, ctx, newCtx);
return this;
} else {
future = newCtx.executor().submit(new AsyncPipelineModification() {
future = newCtx.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
checkDuplicateName(name);
addBefore0(name, ctx, newCtx);
}
});
}
}
@ -273,8 +268,7 @@ public class DefaultChannelPipeline implements ChannelPipeline {
addAfter0(name, ctx, newCtx);
return this;
} else {
future = newCtx.executor().submit(new AsyncPipelineModification() {
future = newCtx.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
checkDuplicateName(name);
@ -407,8 +401,7 @@ public class DefaultChannelPipeline implements ChannelPipeline {
removeLast0(oldTail);
return oldTail;
} else {
future = oldTail.executor().submit(new AsyncPipelineModification() {
future = oldTail.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
removeLast0(oldTail);
@ -422,14 +415,12 @@ public class DefaultChannelPipeline implements ChannelPipeline {
remove0(ctx);
return ctx;
} else {
future = ctx.executor().submit(new AsyncPipelineModification() {
@Override
void doCall() {
remove0(ctx);
}
});
future = ctx.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
remove0(ctx);
}
});
context = ctx;
}
}
@ -487,13 +478,12 @@ public class DefaultChannelPipeline implements ChannelPipeline {
removeLast0(oldTail);
return oldTail.handler();
} else {
future = oldTail.executor().submit(new AsyncPipelineModification() {
future = oldTail.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
removeLast0(oldTail);
}
});
}
}
// Call Future.get() outside of synchronized block to prevent dead-lock
@ -562,15 +552,14 @@ public class DefaultChannelPipeline implements ChannelPipeline {
return ctx.handler();
} else {
future = oldTail.executor().submit(new AsyncPipelineModification() {
@Override
void doCall() {
removeLast0(oldTail);
checkDuplicateName(newName);
addLast0(newName, tail, newTail);
}
});
future = oldTail.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
removeLast0(oldTail);
checkDuplicateName(newName);
addLast0(newName, tail, newTail);
}
});
}
} else {
@ -588,13 +577,11 @@ public class DefaultChannelPipeline implements ChannelPipeline {
replace0(ctx, newName, newCtx);
return ctx.handler();
} else {
future = newCtx.executor().submit(new AsyncPipelineModification() {
future = newCtx.executor().submit(new AsyncPipelineModification(this) {
@Override
void doCall() {
replace0(ctx, newName, newCtx);
}
});
}
}
@ -1705,32 +1692,42 @@ public class DefaultChannelPipeline implements ChannelPipeline {
ctx.fireUserEventTriggered(evt);
}
}
}
/**
* Custom {@link Callable} implementation which will catch all {@link Throwable} which happens
* during execution of {@link AsyncPipelineModification#doCall()} and return them in the
* {@link Future}. This allows to re-throw them later.
*
* It also handles the right synchronization of the {@link AsyncPipelineModification#doCall()}
* method.
*
* It was originally an inner class of {@link DefaultChannelPipeline}, but moved to a top level
* type to work around a compiler bug.
*/
abstract class AsyncPipelineModification implements Callable<Throwable> {
private final ChannelPipeline lock;
AsyncPipelineModification(ChannelPipeline lock) {
this.lock = lock;
}
@Override
public Throwable call() {
try {
synchronized (lock) {
doCall();
}
} catch (Throwable t) {
return t;
}
return null;
}
/**
* Custom {@link Callable} implementation which will catch all {@link Throwable} which happens during execution of {@link AsyncPipelineModification#doCall()}
* and return them in the {@link Future}. This allows to re-throw them later.
*
* It also handles the right synchronization of the {@link AsyncPipelineModification#doCall()} method.
*
* Execute the modification
*/
private abstract class AsyncPipelineModification implements Callable<Throwable> {
abstract void doCall();
@Override
public Throwable call() {
try {
synchronized (DefaultChannelPipeline.this) {
doCall();
}
} catch (Throwable t) {
return t;
}
return null;
}
/**
* Execute the modification
*/
abstract void doCall();
}
}