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// **********************************************************************
//
// Copyright (c) 2003-2009 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
package Ice;
public class AsyncResult
{
protected AsyncResult(IceInternal.Instance instance, String op, IceInternal.CallbackBase del)
{
_instance = instance;
_operation = op;
_is = new IceInternal.BasicStream(instance);
_os = new IceInternal.BasicStream(instance);
_state = 0;
_exception = null;
_callback = del;
}
public Communicator getCommunicator()
{
return null;
}
public Connection getConnection()
{
return null;
}
public ObjectPrx getProxy()
{
return null;
}
public final boolean isCompleted()
{
synchronized(_monitor)
{
return (_state & Done) > 0;
}
}
public final void waitForCompleted()
{
synchronized(_monitor)
{
while((_state & Done) == 0)
{
try
{
_monitor.wait();
}
catch(InterruptedException ex)
{
}
}
}
}
public final boolean isSent()
{
synchronized(_monitor)
{
return (_state & Sent) > 0;
}
}
public final void waitForSent()
{
synchronized(_monitor)
{
while((_state & (Sent | Done)) == 0)
{
try
{
_monitor.wait();
}
catch(InterruptedException ex)
{
}
}
}
}
public final boolean sentSynchronously()
{
return _sentSynchronously; // No lock needed, immutable once __send() is called
}
public final String getOperation()
{
return _operation;
}
public final IceInternal.BasicStream __os()
{
return _os;
}
public final IceInternal.BasicStream __is()
{
return _is;
}
public final boolean __wait()
{
synchronized(_monitor)
{
if((_state & EndCalled) > 0)
{
throw new java.lang.IllegalArgumentException("end_ method called more than once");
}
_state |= EndCalled;
while((_state & Done) == 0)
{
try
{
_monitor.wait();
}
catch(InterruptedException ex)
{
}
}
if(_exception != null)
{
//throw (LocalException)_exception.fillInStackTrace();
throw _exception;
}
return (_state & OK) > 0;
}
}
public final void __throwUserException()
throws UserException
{
try
{
_is.startReadEncaps();
_is.throwException();
}
catch(UserException ex)
{
_is.endReadEncaps();
throw ex;
}
}
public final void __exceptionAsync(final LocalException ex)
{
//
// This is called when it's not safe to call the exception callback synchronously
// from this thread. Instead the exception callback is called asynchronously from
// the client thread pool.
//
try
{
_instance.clientThreadPool().execute(new IceInternal.DispatchWorkItem(_instance)
{
public void
run()
{
__exception(ex);
}
});
}
catch(CommunicatorDestroyedException exc)
{
throw exc; // CommunicatorDestroyedException is the only exception that can propagate directly.
}
}
public final void __exception(LocalException ex)
{
synchronized(_monitor)
{
_state |= Done;
_exception = ex;
_monitor.notifyAll();
}
if(_callback != null)
{
try
{
_callback.__completed(this);
}
catch(RuntimeException exc)
{
__warning(exc);
}
}
}
protected final void __sentInternal()
{
//
// Note: no need to change the _state here, specializations are responsible for
// changing the state.
//
if(_callback != null)
{
try
{
_callback.__sent(this);
}
catch(RuntimeException ex)
{
__warning(ex);
}
}
}
public final void __sentAsync()
{
//
// This is called when it's not safe to call the sent callback synchronously
// from this thread. Instead the exception callback is called asynchronously from
// the client thread pool.
//
try
{
_instance.clientThreadPool().execute(new IceInternal.DispatchWorkItem(_instance)
{
public void
run()
{
__sentInternal();
}
});
}
catch(CommunicatorDestroyedException exc)
{
}
}
public static void __check(AsyncResult r, ObjectPrx prx, String operation)
{
__check(r, operation);
if(r.getProxy() != prx)
{
throw new IllegalArgumentException("Proxy for call to end_" + operation +
" does not match proxy that was used to call corresponding begin_" +
operation + " method");
}
}
public static void __check(AsyncResult r, Connection con, String operation)
{
__check(r, operation);
if(r.getConnection() != con)
{
throw new IllegalArgumentException("Connection for call to end_" + operation +
" does not match connection that was used to call corresponding begin_" +
operation + " method");
}
}
public static void __check(AsyncResult r, Communicator com, String operation)
{
__check(r, operation);
if(r.getCommunicator() != com)
{
throw new IllegalArgumentException("Communicator for call to end_" + operation +
" does not match communicator that was used to call corresponding " +
"begin_" + operation + " method");
}
}
protected static void __check(AsyncResult r, String operation)
{
if(r == null)
{
throw new IllegalArgumentException("AsyncResult == null");
}
else if(r.getOperation() != operation) // Do NOT use equals() here - we are comparing reference equality
{
throw new IllegalArgumentException("Incorrect operation for end_" + operation + " method: " +
r.getOperation());
}
}
protected final void __response()
{
//
// Note: no need to change the _state here, specializations are responsible for
// changing the state.
//
if(_callback != null)
{
try
{
_callback.__completed(this);
}
catch(RuntimeException ex)
{
__warning(ex);
}
}
}
protected final void __warning(RuntimeException ex)
{
if(_instance.initializationData().properties.getPropertyAsIntWithDefault("Ice.Warn.AMICallback", 1) > 0)
{
String s = "exception raised by AMI callback:\n" + IceInternal.Ex.toString(ex);
_instance.initializationData().logger.warning(s);
}
}
protected IceInternal.Instance _instance;
protected String _operation;
protected java.lang.Object _monitor = new java.lang.Object();
protected IceInternal.BasicStream _is;
protected IceInternal.BasicStream _os;
protected static final byte OK = 0x1;
protected static final byte Done = 0x2;
protected static final byte Sent = 0x4;
protected static final byte EndCalled = 0x8;
protected byte _state;
protected boolean _sentSynchronously;
protected LocalException _exception;
private IceInternal.CallbackBase _callback;
}
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