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/*=========================================================================
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.kitware.com/VolViewCopyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkKWDataTransfer.h"
#include "vtkKWRemoteIOManager.h"
#include "vtkHTTPHandler.h"
#include "vtkEventForwarderCommand.h"
vtkStandardNewMacro ( vtkKWDataTransfer );
vtkCxxRevisionMacro ( vtkKWDataTransfer, "$Revision: 1.11 $" );
//----------------------------------------------------------------------------
class vtkKWDataTransferCommand : public vtkCommand
{
public:
static vtkKWDataTransferCommand * New()
{ return new vtkKWDataTransferCommand; }
virtual void Execute( vtkObject *caller,
unsigned long event,
void* calldata )
{
this->DataTransfer->InvokeEvent(
vtkKWRemoteIOManager::TransferUpdateEvent, this->DataTransfer );
}
vtkKWDataTransfer * DataTransfer;
};
//----------------------------------------------------------------------------
vtkKWDataTransfer::vtkKWDataTransfer()
{
this->SourceURI = NULL;
this->DestinationURI = NULL;
this->Identifier = NULL;
this->Handler = NULL;
this->TransferStatus = vtkKWDataTransfer::Ready;
this->TransferID = -1;
this->TransferType = vtkKWDataTransfer::Unspecified;
this->TransferNodeID = NULL;
this->CancelRequested = 0;
this->TransferCached = 0;
this->Asynchronous = 0;
this->LastCheckedTransferStatus = this->TransferStatus;
this->DisableTar = 0;
this->EventForwarderCommand = vtkKWDataTransferCommand::New();
this->EventForwarderCommand->DataTransfer = this;
}
//----------------------------------------------------------------------------
vtkKWDataTransfer::~vtkKWDataTransfer()
{
this->SetIdentifier(NULL);
this->SetSourceURI(NULL);
this->SetDestinationURI(NULL);
this->SetHandler(NULL);
this->TransferStatus = vtkKWDataTransfer::Ready;
this->TransferID = -1;
this->TransferType = vtkKWDataTransfer::Unspecified;
this->TransferNodeID = NULL;
this->CancelRequested = 0;
this->TransferCached = 0;
this->EventForwarderCommand->Delete();
}
//----------------------------------------------------------------------------
vtkURIHandler * vtkKWDataTransfer::GetHandler()
{
if (this->SourceURI && !this->Handler)
{
// Create one if it does not exist.
vtkHTTPHandler *httpHandler = vtkHTTPHandler::New();
if (httpHandler->CanHandleURI(this->SourceURI))
{
this->SetHandler(httpHandler);
}
httpHandler->Delete();
}
return this->Handler;
}
//----------------------------------------------------------------------------
int vtkKWDataTransfer::CheckAndUpdateTransferStatus()
{
if (this->LastCheckedTransferStatus != this->TransferStatus)
{
this->LastCheckedTransferStatus = this->TransferStatus;
return 1;
}
return 0;
}
//----------------------------------------------------------------------------
void vtkKWDataTransfer::SetHandler( vtkURIHandler * args )
{
if (this->Handler != args)
{
vtkURIHandler* tempSGMacroVar = this->Handler;
this->Handler = args;
if (this->Handler != NULL) { this->Handler->Register(this); }
if (tempSGMacroVar != NULL)
{
tempSGMacroVar->UnRegister(this);
}
this->Modified();
if (this->Handler)
{
this->Handler->AddObserver( vtkKWRemoteIOManager::TransferUpdateEvent,
this->EventForwarderCommand );
}
}
}
//----------------------------------------------------------------------------
void vtkKWDataTransfer::PrintSelf(ostream& os, vtkIndent indent)
{
Superclass::PrintSelf ( os, indent );
os << indent << "SourceURI: " <<
( this->SourceURI ? this->SourceURI : "(none)") << "\n";
os << indent << "DestinationURI: " <<
( this->DestinationURI ? this->DestinationURI : "(none)") << "\n";
os << indent << "Identifier: " <<
( this->Identifier ? this->Identifier : "(none)") << "\n";
os << indent << "Handler: " << this->Handler << "\n";
os << indent << "TransferCached: " << this->GetTransferCached() << "\n";
os << indent << "TransferStatus: " << this->GetTransferStatus() << "\n";
os << indent << "CancelRequested: " << this->GetCancelRequested() << "\n";
os << indent << "TransferID: " << this->GetTransferID() << "\n";
os << indent << "TransferType: " << this->GetTransferType() << "\n";
os << indent << "TransferNodeID: " << this->GetTransferNodeID() << "\n";
os << indent << "Asynchronous: " << this->Asynchronous << "\n";
}
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