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Xsl.cpp
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Xsl.cpp
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#include "StdAfx.h"
#include "./Xsl.h"
namespace JWXml
{
CXsl::CXsl(void)
{
}
CXsl::~CXsl(void)
{
Close();
}
//-------------------------------------------------------------------------
// Function Name :Open
// Parameter(s) :LPCTSTR lpszXslFilePath XSL file path
// Return :BOOL
// Create :2008-1-16 16:09 Jerry.Wang
// Memo :Open the xsl file
//-------------------------------------------------------------------------
BOOL CXsl::Open(LPCTSTR lpszXslFilePath)
{
Close();
HRESULT hr = S_OK;
try
{
hr = m_pIXSLTemplate.CreateInstance( __uuidof(MSXML2::XSLTemplate) );
if( FAILED(hr) ) { ASSERT(FALSE); return FALSE; }
hr = m_pStyleSheet.CreateInstance( __uuidof(MSXML2::FreeThreadedDOMDocument) );
if( FAILED(hr) ) { ASSERT(FALSE); return FALSE; }
VARIANT_BOOL vbSuccessful = VARIANT_TRUE;
vbSuccessful = m_pStyleSheet->load( _variant_t(lpszXslFilePath) );
if( vbSuccessful == VARIANT_FALSE ) { ASSERT(FALSE); return FALSE; }
hr = m_pIXSLTemplate->putref_stylesheet(m_pStyleSheet);
if( FAILED(hr) ) { VERIFY(FALSE); return FALSE; }
m_pIXSLProcessor = m_pIXSLTemplate->createProcessor();
if( m_pIXSLProcessor == NULL ) { ASSERT(FALSE); return FALSE; }
return TRUE;
}
catch( _com_error e)
{
TRACE( _T("CXsl::Open(%s) failed:%s\n"), lpszXslFilePath, e.ErrorMessage());
ASSERT( FALSE );
return FALSE;
}
}
//-------------------------------------------------------------------------
// Function Name :Close
// Parameter(s) :void
// Return :void
// Create :2008-1-16 16:10 Jerry.Wang
// Memo :Close the xsl file
//-------------------------------------------------------------------------
void CXsl::Close(void)
{
RELEASE_PTR(m_pIXSLTemplate);
RELEASE_PTR(m_pStyleSheet);
RELEASE_PTR(m_pIXSLProcessor);
}
//-------------------------------------------------------------------------
// Function Name :AddParameter
// Parameter(s) :LPCTSTR lpszParamName
// :LPCTSTR lpszParamValue
// :LPCTSTR lpszNamespaceURI
// Return :BOOL
// Create :2008-1-18 22:10 Jerry.Wang
// Memo :Add a parameter to the XSLT
//-------------------------------------------------------------------------
BOOL CXsl::AddParameter( LPCTSTR lpszParamName, LPCTSTR lpszParamValue, LPCTSTR lpszNamespaceURI /* = _T("") */)
{
ASSERT(m_pIXSLProcessor != NULL);
try
{
HRESULT hr = m_pIXSLProcessor->addParameter( _bstr_t(lpszParamName)
, _variant_t(lpszParamValue)
, _bstr_t(lpszNamespaceURI)
);
return SUCCEEDED(hr);
}
catch( _com_error e)
{
TRACE( _T("CXsl::AddParameter( %s, %s, %s) failed:%s\n")
, lpszParamName
, lpszParamValue
, lpszNamespaceURI
, e.ErrorMessage()
);
ASSERT( FALSE );
return FALSE;
}
}
//-------------------------------------------------------------------------
// Function Name :TransformToFile
// Parameter(s) :CXml & objXml the CXml instance
// :LPCTSTR lpszFilePath The destination file
// Return :BOOL
// Create :2008-1-16 16:38 Jerry.Wang
// Memo :Transform XML + XSL To File
//-------------------------------------------------------------------------
BOOL CXsl::TransformToFile( CXml & objXml, LPCTSTR lpszFilePath)
{
HRESULT hr = S_FALSE;
IStream * pOutStream = NULL;
// LPVOID pOutput = NULL;
VARIANT_BOOL vbSuccessful = VARIANT_TRUE;
try
{
::CreateStreamOnHGlobal( NULL, TRUE, &pOutStream);
m_pIXSLProcessor->put_output(_variant_t(pOutStream));
hr = m_pIXSLProcessor->put_input( _variant_t((IUnknown*)objXml.m_pDoc) );
if( FAILED(hr) ) { ASSERT(FALSE); return FALSE; }
vbSuccessful = m_pIXSLProcessor->transform();
if( vbSuccessful == VARIANT_FALSE ) { VERIFY(FALSE); return FALSE; }
CXml::SaveStreamToFile( pOutStream, lpszFilePath);
return TRUE;
}
catch( _com_error e)
{
TRACE( _T("CXsl::Transform failed:%s\n"), e.ErrorMessage());
ASSERT( FALSE );
return FALSE;
}
}
}