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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSMProxyConfigurationReader.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.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 "vtkSMProxyConfigurationReader.h"
#include "vtkSMCameraConfigurationFileInfo.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
#include "vtkPVXMLElement.h"
#include "vtkPVXMLParser.h"
#include "vtkSMProxy.h"
#include <string>
#define safeio(a) ((a)?(a):"NULL")
vtkStandardNewMacro(vtkSMProxyConfigurationReader);
//-----------------------------------------------------------------------------
vtkSMProxyConfigurationReader::vtkSMProxyConfigurationReader()
:
FileName(0),
ValidateProxyType(1),
Proxy(0),
FileIdentifier(0),
FileDescription(0),
FileExtension(0)
{
vtkSMCameraConfigurationFileInfo info;
this->SetFileIdentifier(info.FileIdentifier);
this->SetFileDescription(info.FileDescription);
this->SetFileExtension(info.FileExtension);
}
//-----------------------------------------------------------------------------
vtkSMProxyConfigurationReader::~vtkSMProxyConfigurationReader()
{
this->SetFileName(0);
this->SetProxy(0);
this->SetFileIdentifier(0);
this->SetFileDescription(0);
this->SetFileExtension(0);
}
//-----------------------------------------------------------------------------
vtkCxxSetObjectMacro(vtkSMProxyConfigurationReader,Proxy,vtkSMProxy);
//-----------------------------------------------------------------------------
bool vtkSMProxyConfigurationReader::CanReadVersion(const char *version)
{
return std::string(version)==this->GetReaderVersion();
}
//-----------------------------------------------------------------------------
int vtkSMProxyConfigurationReader::ReadConfiguration()
{
return this->ReadConfiguration(this->FileName);
}
//-----------------------------------------------------------------------------
int vtkSMProxyConfigurationReader::ReadConfiguration(const char *filename)
{
if (filename==0)
{
vtkErrorMacro("Cannot read from filename NULL.");
return 0;
}
vtkSmartPointer<vtkPVXMLParser> parser=vtkSmartPointer<vtkPVXMLParser>::New();
parser->SetFileName(filename);
if (parser->Parse()==0)
{
vtkErrorMacro("Invalid XML in file: " << filename << ".");
return 0;
}
vtkPVXMLElement *xmlStream=parser->GetRootElement();
if (xmlStream==0)
{
vtkErrorMacro("Invalid XML in file: " << filename << ".");
return 0;
}
return this->ReadConfiguration(xmlStream);
}
//-----------------------------------------------------------------------------
int vtkSMProxyConfigurationReader::ReadConfiguration(vtkPVXMLElement *configXml)
{
std::string requiredIdentifier(this->GetFileIdentifier());
const char *foundIdentifier=configXml->GetName();
if (foundIdentifier==0 || foundIdentifier!=requiredIdentifier)
{
vtkErrorMacro(
<< "This is not a valid " << this->GetFileDescription()
<< " XML hierarchy.");
return 0;
}
const char *foundVersion=configXml->GetAttribute("version");
if (foundVersion==0)
{
vtkErrorMacro("No \"version\" attribute was found.");
return 0;
}
if (!this->CanReadVersion(foundVersion))
{
vtkErrorMacro("Unsupported version " << foundVersion << ".");
return 0;
}
// Find a proxy emlement, this hierarchy is expected to contain one
// and only one Proxy element.
vtkPVXMLElement *proxyXml=configXml->FindNestedElementByName("Proxy");
if (proxyXml==0)
{
vtkErrorMacro("No \"Proxy\" element was found.");
return 0;
}
// Compare type of proxy in the file with the one we have to make
// sure they match.
const char *foundType=proxyXml->GetAttribute("type");
std::string requiredType=this->Proxy->GetXMLName();
if (this->ValidateProxyType
&& (foundType==0 || foundType!=requiredType))
{
vtkErrorMacro(
<< "This is not a valid " << requiredType
<< " XML hierarchy.");
return 0;
}
// Push hierarchy to the proxy.
int ok=this->Proxy->LoadXMLState(proxyXml,0);
if (!ok)
{
vtkErrorMacro("Proxy::LoadState failed.");
return 0;
}
this->Proxy->UpdateVTKObjects();
return 1;
}
//-----------------------------------------------------------------------------
void vtkSMProxyConfigurationReader::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "FileName: " << safeio(this->FileName) << endl
<< indent << "Proxy: " << Proxy << endl
<< indent << "FileIdentifier: " << safeio(this->GetFileIdentifier()) << endl
<< indent << "FileDescription: " << safeio(this->GetFileDescription()) << endl
<< indent << "FileExtension: " << safeio(this->GetFileExtension()) << endl
<< indent << "ReaderVersion: " << safeio(this->GetReaderVersion()) << endl;
}
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