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// **********************************************************************
//
// Copyright (c) 2001
// ZeroC, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#include <Ice/Incoming.h>
#include <Ice/ObjectAdapterI.h> // We need ObjectAdapterI, not ObjectAdapter, because of inc/decUsageCount().
#include <Ice/ServantLocator.h>
#include <Ice/Object.h>
#include <Ice/LocalException.h>
using namespace std;
using namespace Ice;
using namespace IceInternal;
IceInternal::Incoming::Incoming(const InstancePtr& instance, const ObjectAdapterPtr& adapter) :
_is(instance),
_os(instance)
{
_current.adapter = adapter;
if(_current.adapter)
{
dynamic_cast<ObjectAdapterI*>(_current.adapter.get())->incUsageCount();
}
}
IceInternal::Incoming::~Incoming()
{
if(_current.adapter)
{
dynamic_cast<ObjectAdapterI*>(_current.adapter.get())->decUsageCount();
}
}
void
IceInternal::Incoming::invoke(bool response)
{
//
// Read the current.
//
_current.id.__read(&_is);
_is.read(_current.facet);
_is.read(_current.operation);
Byte b;
_is.read(b);
_current.mode = static_cast<OperationMode>(b);
Int sz;
_is.readSize(sz);
while(sz--)
{
pair<string, string> pr;
_is.read(pr.first);
_is.read(pr.second);
_current.ctx.insert(_current.ctx.end(), pr);
}
_is.startReadEncaps();
BasicStream::Container::size_type statusPos;
if(response)
{
statusPos = _os.b.size();
_os.write(static_cast<Byte>(0));
_os.startWriteEncaps();
}
else
{
statusPos = 0; // Initialize, to keep the compiler happy.
}
ObjectPtr servant;
ServantLocatorPtr locator;
LocalObjectPtr cookie;
DispatchStatus status;
//
// 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.
//
try
{
if(_current.adapter)
{
servant = _current.adapter->identityToServant(_current.id);
if(!servant && !_current.id.category.empty())
{
locator = _current.adapter->findServantLocator(_current.id.category);
if(locator)
{
servant = locator->locate(_current, cookie);
}
}
if(!servant)
{
locator = _current.adapter->findServantLocator("");
if(locator)
{
servant = locator->locate(_current, cookie);
}
}
}
if(!servant)
{
status = DispatchObjectNotExist;
}
else
{
if(!_current.facet.empty())
{
ObjectPtr facetServant = servant->ice_findFacetPath(_current.facet, 0);
if(!facetServant)
{
status = DispatchFacetNotExist;
}
else
{
status = facetServant->__dispatch(*this, _current);
}
}
else
{
status = servant->__dispatch(*this, _current);
}
}
}
catch(const LocationForward& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchLocationForward));
_os.write(ex._prx);
}
return;
}
catch(const RequestFailedException& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
if(dynamic_cast<const ObjectNotExistException*>(&ex))
{
_os.write(static_cast<Byte>(DispatchObjectNotExist));
}
else if(dynamic_cast<const FacetNotExistException*>(&ex))
{
_os.write(static_cast<Byte>(DispatchFacetNotExist));
}
else if(dynamic_cast<const OperationNotExistException*>(&ex))
{
_os.write(static_cast<Byte>(DispatchOperationNotExist));
}
else
{
assert(false);
}
// Write the data from the exception, not from _current,
// so that a RequestFailedException can override the
// information from _current.
ex.id.__write(&_os);
_os.write(ex.facet);
_os.write(ex.operation);
}
return;
}
catch(const LocalException& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchUnknownLocalException));
ostringstream str;
str << ex;
_os.write(str.str());
}
return;
}
catch(const UserException& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchUnknownUserException));
ostringstream str;
str << ex;
_os.write(str.str());
}
return;
}
catch(const Exception& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchUnknownException));
ostringstream str;
str << ex;
_os.write(str.str());
}
return;
}
catch(const std::exception& ex)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchUnknownException));
ostringstream str;
str << "std::exception: " << ex.what();
_os.write(str.str());
}
return;
}
catch(...)
{
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(DispatchUnknownException));
string reason = "unknown c++ exception";
_os.write(reason);
}
return;
}
//
// 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.
//
if(locator && servant)
{
locator->finished(_current, servant, cookie);
}
_is.endReadEncaps();
if(response)
{
_os.endWriteEncaps();
if(status != DispatchOK && status != DispatchUserException)
{
assert(status == DispatchObjectNotExist ||
status == DispatchFacetNotExist ||
status == DispatchOperationNotExist);
_os.b.resize(statusPos);
_os.write(static_cast<Byte>(status));
_current.id.__write(&_os);
_os.write(_current.facet);
_os.write(_current.operation);
}
else
{
*(_os.b.begin() + statusPos) = static_cast<Byte>(status);
}
}
}
BasicStream*
IceInternal::Incoming::is()
{
return &_is;
}
BasicStream*
IceInternal::Incoming::os()
{
return &_os;
}
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