com.sun.grizzly.CallbackHandlerContextTask Maven / Gradle / Ivy
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package com.sun.grizzly;
import com.sun.grizzly.Context.OpType;
/**
* {@link CallbackHandler} task, which will be executed by
* {@link Context}, when Context.execute({@link ContextTask})
* is called.
*
* @author Alexey Stashok
*/
public class CallbackHandlerContextTask extends SelectionKeyContextTask {
private CallbackHandler callBackHandler;
public CallbackHandlerContextTask(CallbackHandler callBackHandler) {
this.callBackHandler = callBackHandler;
}
protected Object doCall() throws Exception {
IOEvent ioEvent = context.getIOEvent();
OpType currentOpType = context.getCurrentOpType();
try {
if (currentOpType == OpType.OP_READ) {
callBackHandler.onRead(ioEvent);
} else if (currentOpType == OpType.OP_WRITE) {
callBackHandler.onWrite(ioEvent);
} else if (currentOpType == OpType.OP_CONNECT) {
callBackHandler.onConnect(ioEvent);
}
} finally {
if (ioEvent != null) {
// Prevent the CallbackHandler to re-use the context.
// TODO: This is still dangerous as the Context might have been
// cached by the CallbackHandler.
ioEvent.attach(null);
}
}
return null;
}
public CallbackHandler getCallBackHandler() {
return callBackHandler;
}
public void setCallBackHandler(CallbackHandler callBackHandler) {
this.callBackHandler = callBackHandler;
}
@Override
public void recycle() {
callBackHandler = null;
super.recycle();
}
}