com.zeroc.IceInternal.OutgoingAsync Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of ice Show documentation
Show all versions of ice Show documentation
Ice is a comprehensive RPC framework that helps you build distributed applications with minimal effort using familiar object-oriented idioms
//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
package com.zeroc.IceInternal;
import com.zeroc.Ice.FormatType;
import com.zeroc.Ice._ObjectPrxI;
import com.zeroc.Ice.OperationInterruptedException;
import com.zeroc.Ice.OperationMode;
import com.zeroc.Ice.OutputStream;
import com.zeroc.Ice.UserException;
import com.zeroc.Ice.UnknownException;
import com.zeroc.Ice.UnknownUserException;
public class OutgoingAsync extends ProxyOutgoingAsyncBaseI
{
@FunctionalInterface
static public interface Unmarshaler
{
V unmarshal(com.zeroc.Ice.InputStream istr);
}
public OutgoingAsync(com.zeroc.Ice.ObjectPrx prx, String operation, OperationMode mode, boolean synchronous,
Class[] userExceptions)
{
super((_ObjectPrxI)prx, operation, null);
_mode = mode == null ? OperationMode.Normal : mode;
_synchronous = synchronous;
_userExceptions = userExceptions;
_encoding = Protocol.getCompatibleEncoding(_proxy._getReference().getEncoding());
if(_instance.cacheMessageBuffers() > 0)
{
_ObjectPrxI.StreamPair p = _proxy._getCachedMessageBuffers();
if(p != null)
{
_is = p.is;
_os = p.os;
}
}
if(_os == null)
{
_os = new com.zeroc.Ice.OutputStream(_instance, Protocol.currentProtocolEncoding);
}
}
public void invoke(boolean twowayOnly, java.util.Map ctx, FormatType format,
OutputStream.Marshaler marshal, Unmarshaler unmarshal)
{
_unmarshal = unmarshal;
if(twowayOnly && !_proxy.ice_isTwoway())
{
throw new com.zeroc.Ice.TwowayOnlyException(_operation);
}
if(format == null)
{
format = FormatType.DefaultFormat;
}
try
{
prepare(ctx);
if(marshal == null)
{
writeEmptyParams();
}
else
{
marshal.marshal(startWriteParams(format));
endWriteParams();
}
if(isBatch())
{
//
// NOTE: we don't call sent/completed callbacks for batch AMI requests
//
_sentSynchronously = true;
_proxy._getBatchRequestQueue().finishBatchRequest(_os, _proxy, _operation);
finished(true, false);
}
else
{
//
// NOTE: invokeImpl doesn't throw so this can be called from the
// try block with the catch block calling abort() in case of an
// exception.
//
invokeImpl(true); // userThread = true
}
}
catch(com.zeroc.Ice.Exception ex)
{
abort(ex);
}
}
@Override
public T waitForResponse()
{
if(isBatch())
{
return null; // The future will not be completed for a batch invocation.
}
try
{
return waitForResponseOrUserEx();
}
catch(UserException ex)
{
throw new UnknownUserException(ex.ice_id(), ex);
}
}
public T waitForResponseOrUserEx()
throws UserException
{
if(Thread.interrupted())
{
throw new OperationInterruptedException();
}
try
{
return get();
}
catch(InterruptedException ex)
{
throw new OperationInterruptedException(ex);
}
catch(java.util.concurrent.ExecutionException ee)
{
try
{
throw ee.getCause().fillInStackTrace();
}
catch(RuntimeException ex) // Includes LocalException
{
throw ex;
}
catch(UserException ex)
{
throw ex;
}
catch(Throwable ex)
{
throw new UnknownException(ex);
}
}
}
@Override
public boolean sent()
{
return sent(!_proxy.ice_isTwoway()); // done = true if not a two-way proxy (no response expected)
}
@Override
public int invokeRemote(com.zeroc.Ice.ConnectionI connection, boolean compress, boolean response)
throws RetryException
{
_cachedConnection = connection;
return connection.sendAsyncRequest(this, compress, response, 0);
}
@Override
public int invokeCollocated(CollocatedRequestHandler handler)
{
// The stream cannot be cached if the proxy is not a twoway or there is an invocation timeout set.
if(!_proxy.ice_isTwoway() || _proxy._getReference().getInvocationTimeout() > 0)
{
// Disable caching by marking the streams as cached!
_state |= StateCachedBuffers;
}
return handler.invokeAsyncRequest(this, 0, _synchronous);
}
@Override
public void abort(com.zeroc.Ice.Exception ex)
{
if(isBatch())
{
//
// If we didn't finish a batch oneway or datagram request, we
// must notify the connection about that we give up ownership
// of the batch stream.
//
_proxy._getBatchRequestQueue().abortBatchRequest(_os);
}
super.abort(ex);
}
@Override
protected void markCompleted()
{
try
{
if(!_proxy.ice_isTwoway())
{
//
// For a non-twoway proxy, the invocation is completed after it is sent.
//
complete(null);
}
else if((_state & StateOK) > 0)
{
T r = null;
try
{
if(_unmarshal != null)
{
//
// The Unmarshaler callback unmarshals and returns the results.
//
r = _unmarshal.unmarshal(startReadParams());
endReadParams();
}
else
{
readEmptyParams();
}
}
catch(com.zeroc.Ice.LocalException ex)
{
completeExceptionally(ex);
return;
}
complete(r);
}
else
{
//
// Handle user exception.
//
try
{
throwUserException();
}
catch(UserException ex)
{
if(_userExceptions != null)
{
for(int i = 0; i < _userExceptions.length; ++i)
{
if(_userExceptions[i].isInstance(ex))
{
completeExceptionally(ex);
return;
}
}
}
completeExceptionally(new com.zeroc.Ice.UnknownUserException(ex.ice_id(), ex));
}
catch(Throwable ex)
{
completeExceptionally(ex);
}
}
}
finally
{
cacheMessageBuffers();
}
}
@Override
public final boolean completed(com.zeroc.Ice.InputStream is)
{
//
// NOTE: this method is called from ConnectionI.parseMessage
// with the connection locked. Therefore, it must not invoke
// any user callbacks.
//
// _is can already be initialized if the invocation is retried
if(_is == null)
{
_is = new com.zeroc.Ice.InputStream(_instance, Protocol.currentProtocolEncoding);
}
_is.swap(is);
return super.completed(_is);
}
private com.zeroc.Ice.OutputStream startWriteParams(FormatType format)
{
_os.startEncapsulation(_encoding, format);
return _os;
}
private void endWriteParams()
{
_os.endEncapsulation();
}
private void writeEmptyParams()
{
_os.writeEmptyEncapsulation(_encoding);
}
private com.zeroc.Ice.InputStream startReadParams()
{
_is.startEncapsulation();
return _is;
}
private void endReadParams()
{
_is.endEncapsulation();
}
private void readEmptyParams()
{
_is.skipEmptyEncapsulation();
}
private final void throwUserException()
throws com.zeroc.Ice.UserException
{
try
{
_is.startEncapsulation();
_is.throwException(null);
}
catch(com.zeroc.Ice.UserException ex)
{
_is.endEncapsulation();
throw ex;
}
}
@Override
protected void cacheMessageBuffers()
{
if(_instance.cacheMessageBuffers() > 0)
{
synchronized(this)
{
if((_state & StateCachedBuffers) > 0)
{
return;
}
_state |= StateCachedBuffers;
}
if(_is != null)
{
_is.reset();
}
_os.reset();
_proxy._cacheMessageBuffers(_is, _os);
_is = null;
_os = null;
}
}
final private com.zeroc.Ice.EncodingVersion _encoding;
private com.zeroc.Ice.InputStream _is;
private Class[] _userExceptions; // Valid user exceptions.
private Unmarshaler _unmarshal;
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy