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|
// **********************************************************************
//
// Copyright (c) 2003-2010 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 IceInternal;
final public class Incoming extends IncomingBase implements Ice.Request
{
public
Incoming(Instance instance, Ice.ConnectionI connection, Ice.ObjectAdapter adapter, boolean response, byte compress,
int requestId)
{
super(instance, connection, adapter, response, compress, requestId);
_is = new BasicStream(instance);
}
//
// Request implementation
//
public boolean
isCollocated()
{
return false;
}
public Ice.Current
getCurrent()
{
return _current;
}
//
// These functions allow this object to be reused, rather than reallocated.
//
public void
reset(Instance instance, Ice.ConnectionI connection, Ice.ObjectAdapter adapter, boolean response, byte compress,
int requestId)
{
_cb = null;
_inParamPos = -1;
if(_is == null)
{
_is = new BasicStream(instance);
}
super.reset(instance, connection, adapter, response, compress, requestId);
}
public void
reclaim()
{
_cb = null;
_inParamPos = -1;
if(_is != null)
{
_is.reset();
}
super.reclaim();
}
public void
invoke(ServantManager servantManager)
{
//
// Read the current.
//
_current.id.__read(_is);
//
// For compatibility with the old FacetPath.
//
String[] facetPath = _is.readStringSeq();
if(facetPath.length > 0)
{
if(facetPath.length > 1)
{
throw new Ice.MarshalException();
}
_current.facet = facetPath[0];
}
else
{
_current.facet = "";
}
_current.operation = _is.readString();
_current.mode = Ice.OperationMode.values()[_is.readByte()];
_current.ctx = new java.util.HashMap<String, String>();
int sz = _is.readSize();
while(sz-- > 0)
{
String first = _is.readString();
String second = _is.readString();
_current.ctx.put(first, second);
}
if(_response)
{
assert(_os.size() == Protocol.headerSize + 4); // Reply status position.
_os.writeByte(ReplyStatus.replyOK);
_os.startWriteEncaps();
}
byte replyStatus = ReplyStatus.replyOK;
Ice.DispatchStatus dispatchStatus = Ice.DispatchStatus.DispatchOK;
//
// Don't put the code above into the try block below. Exceptions
// in the code above are considered fatal, and must propagate to
// the caller of this operation.
//
if(servantManager != null)
{
_servant = servantManager.findServant(_current.id, _current.facet);
if(_servant == null)
{
_locator = servantManager.findServantLocator(_current.id.category);
if(_locator == null && _current.id.category.length() > 0)
{
_locator = servantManager.findServantLocator("");
}
if(_locator != null)
{
try
{
_servant = _locator.locate(_current, _cookie);
}
catch(Ice.UserException ex)
{
_os.writeUserException(ex);
replyStatus = ReplyStatus.replyUserException;
}
catch(java.lang.Exception ex)
{
__handleException(ex);
return;
}
}
}
}
if(_servant != null)
{
try
{
assert(replyStatus == ReplyStatus.replyOK);
dispatchStatus = _servant.__dispatch(this, _current);
if(dispatchStatus == Ice.DispatchStatus.DispatchUserException)
{
replyStatus = ReplyStatus.replyUserException;
}
if(dispatchStatus != Ice.DispatchStatus.DispatchAsync)
{
if(_locator != null && !__servantLocatorFinished())
{
return;
}
}
}
catch(java.lang.Exception ex)
{
if(_locator != null && !__servantLocatorFinished())
{
return;
}
__handleException(ex);
return;
}
}
else if(replyStatus == ReplyStatus.replyOK)
{
if(servantManager != null && servantManager.hasServant(_current.id))
{
replyStatus = ReplyStatus.replyFacetNotExist;
}
else
{
replyStatus = ReplyStatus.replyObjectNotExist;
}
}
//
// Don't put the code below into the try block above. Exceptions
// in the code below are considered fatal, and must propagate to
// the caller of this operation.
//
//
// DispatchAsync is "pseudo dispatch status", used internally
// only to indicate async dispatch.
//
if(dispatchStatus == Ice.DispatchStatus.DispatchAsync)
{
//
// If this was an asynchronous dispatch, we're done here.
//
return;
}
assert(_connection != null);
if(_response)
{
_os.endWriteEncaps();
if(replyStatus != ReplyStatus.replyOK && replyStatus != ReplyStatus.replyUserException)
{
assert(replyStatus == ReplyStatus.replyObjectNotExist ||
replyStatus == ReplyStatus.replyFacetNotExist);
_os.resize(Protocol.headerSize + 4, false); // Reply status position.
_os.writeByte(replyStatus);
_current.id.__write(_os);
//
// For compatibility with the old FacetPath.
//
if(_current.facet == null || _current.facet.length() == 0)
{
_os.writeStringSeq(null);
}
else
{
String[] facetPath2 = { _current.facet };
_os.writeStringSeq(facetPath2);
}
_os.writeString(_current.operation);
}
else
{
int save = _os.pos();
_os.pos(Protocol.headerSize + 4); // Reply status position.
_os.writeByte(replyStatus);
_os.pos(save);
}
_connection.sendResponse(_os, _compress);
}
else
{
_connection.sendNoResponse();
}
_connection = null;
}
public BasicStream
is()
{
return _is;
}
public BasicStream
os()
{
return _os;
}
public final void
push(Ice.DispatchInterceptorAsyncCallback cb)
{
if(_interceptorAsyncCallbackList == null)
{
_interceptorAsyncCallbackList = new java.util.LinkedList<Ice.DispatchInterceptorAsyncCallback>();
}
_interceptorAsyncCallbackList.addFirst(cb);
}
public final void
pop()
{
assert _interceptorAsyncCallbackList != null;
_interceptorAsyncCallbackList.removeFirst();
}
public final void
startOver()
{
if(_inParamPos == -1)
{
//
// That's the first startOver, so almost nothing to do
//
_inParamPos = _is.pos();
}
else
{
killAsync();
//
// Let's rewind _is and clean-up _os
//
_is.pos(_inParamPos);
if(_response)
{
_os.endWriteEncaps();
_os.resize(Protocol.headerSize + 4, false);
_os.writeByte(ReplyStatus.replyOK);
_os.startWriteEncaps();
}
}
}
public final void
killAsync()
{
//
// Always runs in the dispatch thread
//
if(_cb != null)
{
//
// May raise ResponseSentException
//
_cb.__deactivate(this);
_cb = null;
}
}
final void
setActive(IncomingAsync cb)
{
assert _cb == null;
_cb = cb;
}
final boolean
isRetriable()
{
return _inParamPos != -1;
}
public Incoming next; // For use by ConnectionI.
private BasicStream _is;
private IncomingAsync _cb;
private int _inParamPos = -1;
}
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