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349 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* the BSD license.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*************************************************************************/
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/implbase2.hxx>
#include <cppuhelper/implbase3.hxx>
#include <uno/lbnames.h>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/uno/Type.hxx>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/xml/sax/XParser.hpp>
#include <com/sun/star/xml/sax/InputSource.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <com/sun/star/xml/XImportFilter.hpp>
#include <com/sun/star/xml/XExportFilter.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XActiveDataSource.hpp>
#include <com/sun/star/io/XSeekable.hpp>
using namespace ::cppu;
using namespace ::osl;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::registry;
using namespace ::com::sun::star::xml;
using namespace ::com::sun::star::xml::sax;
namespace XFlatXml {
class XFlatXml : public WeakImplHelper3< XImportFilter, XExportFilter, XDocumentHandler>
{
private:
// the UNO ServiceFactory
Reference< XMultiServiceFactory > m_rServiceFactory;
// DocumentHandler interface of the css::xml::sax::Writer service
Reference < XExtendedDocumentHandler > m_rDocumentHandler;
// controls pretty-printing
sal_Bool m_bPrettyPrint;
public:
// ctor...
XFlatXml( const Reference< XMultiServiceFactory > &r )<--- Class 'XFlatXml' has a constructor with 1 argument that is not explicit. [+]Class 'XFlatXml' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
: m_rServiceFactory(r)
, m_bPrettyPrint(sal_True)
{}
// XImportFilter
virtual sal_Bool SAL_CALL importer(
const Sequence<PropertyValue>& aSourceData,
const Reference<XDocumentHandler>& xHandler,
const Sequence<OUString>& msUserData)
throw(RuntimeException);
// XExportFilter
virtual sal_Bool SAL_CALL exporter(
const Sequence<PropertyValue>& aSourceData,
const Sequence<OUString>& msUserData)
throw(RuntimeException);
// XDocumentHandler
virtual void SAL_CALL startDocument()
throw (SAXException,RuntimeException);
virtual void SAL_CALL endDocument()
throw (SAXException, RuntimeException);
virtual void SAL_CALL startElement(const OUString& str, const Reference<XAttributeList>& attriblist)
throw (SAXException,RuntimeException);
virtual void SAL_CALL endElement(const OUString& str)
throw (SAXException, RuntimeException);
virtual void SAL_CALL characters(const OUString& str)
throw (SAXException, RuntimeException);
virtual void SAL_CALL ignorableWhitespace(const OUString& str)
throw (SAXException, RuntimeException);
virtual void SAL_CALL processingInstruction(const OUString& str, const OUString& str2)
throw (com::sun::star::xml::sax::SAXException,RuntimeException);
virtual void SAL_CALL setDocumentLocator(const Reference<XLocator>& doclocator)
throw (SAXException,RuntimeException);
};
sal_Bool XFlatXml::importer(
const Sequence<PropertyValue>& aSourceData,
const Reference<XDocumentHandler>& xHandler,
const Sequence<OUString>& msUserData)
throw (RuntimeException)
{
// get information from media descriptor
// the imput stream that represents the imported file
// is most important here since we need to supply it to
// the sax parser that drives the supplied document handler
sal_Int32 nLength = aSourceData.getLength();
OUString aName, aFileName, aURL;
Reference< XInputStream > xInputStream;
for ( sal_Int32 i = 0 ; i < nLength; i++)
{
aName = aSourceData[i].Name;
if ( aName == "InputStream" )
aSourceData[i].Value >>= xInputStream;
else if ( aName == "FileName" )
aSourceData[i].Value >>= aFileName;
else if ( aName == "URL" )
aSourceData[i].Value >>= aURL;
}
// we need an input stream
OSL_ASSERT(xInputStream.is());
if (!xInputStream.is()) return sal_False;
// rewind seekable stream
Reference< XSeekable > xSeek(xInputStream, UNO_QUERY);
if (xSeek.is())
xSeek->seek(0);
// create SAX parser that will read the document file
// and provide events to xHandler passed to this call
Reference < XParser > xSaxParser( m_rServiceFactory->createInstance(
OUString("com.sun.star.xml.sax.Parser")), UNO_QUERY );
OSL_ASSERT(xSaxParser.is());
if(!xSaxParser.is())return sal_False;
// let the parser try to send the sax event to the document handler
try
{
InputSource aInput;
aInput.sSystemId = aURL;
aInput.sPublicId = aURL;
aInput.aInputStream = xInputStream;
xSaxParser->setDocumentHandler(xHandler);
xSaxParser->parseStream(aInput);
}
catch( Exception &exc)
{
// something went wrong
OSL_FAIL(rtl::OUStringToOString(exc.Message,RTL_TEXTENCODING_UTF8).getStr());
return sal_False;
}
// done
return sal_True;
}
sal_Bool XFlatXml::exporter(
const Sequence<PropertyValue>& aSourceData,
const Sequence<OUString>& msUserData)
throw (RuntimeException)
{
// read source data
// we are especially interested in the output stream
// since that is where our xml-writer will push the data
// from it's data-source interface
OUString aName, sURL;
Reference<XOutputStream> rOutputStream;
sal_Int32 nLength = aSourceData.getLength();
for ( sal_Int32 i = 0 ; i < nLength; i++)
{
aName = aSourceData[i].Name;
if ( aName == "OutputStream" )
aSourceData[i].Value >>= rOutputStream;
else if ( aName == "URL" )
aSourceData[i].Value >>= sURL;
}
if (!m_rDocumentHandler.is()) {
// get the document writer
m_rDocumentHandler = Reference<XExtendedDocumentHandler>(
m_rServiceFactory->createInstance(
OUString("com.sun.star.xml.sax.Writer")),
UNO_QUERY);
OSL_ASSERT(m_rDocumentHandler.is());
if (!m_rDocumentHandler.is()) return sal_False;
}
// get data source interface ...
Reference< XActiveDataSource > rDataSource(m_rDocumentHandler, UNO_QUERY);
OSL_ASSERT(rDataSource.is());
if (!rDataSource.is()) return sal_False;
OSL_ASSERT(rOutputStream.is());
if (!rOutputStream.is()) return sal_False;
// ... and set output stream
rDataSource->setOutputStream(rOutputStream);
return sal_True;
}
// for the DocumentHandler implementation, we just proxy the the
// events to the XML writer that we created upon the output stream
// that was provided by the XMLFilterAdapter
void XFlatXml::startDocument() throw (SAXException,RuntimeException){
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->startDocument();
}
void XFlatXml::endDocument() throw (SAXException,RuntimeException){
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->endDocument();
}
void XFlatXml::startElement(const OUString& str, const Reference<XAttributeList>& attriblist)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->startElement(str, attriblist);
}
void XFlatXml::endElement(const OUString& str)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->endElement(str);
}
void XFlatXml::characters(const OUString& str)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->characters(str);
}
void XFlatXml::ignorableWhitespace(const OUString& str)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
if (!m_bPrettyPrint) return;
m_rDocumentHandler->ignorableWhitespace(str);
}
void XFlatXml::processingInstruction(const OUString& str, const OUString& str2)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->processingInstruction(str, str2);
}
void XFlatXml::setDocumentLocator(const Reference<XLocator>& doclocator)
throw (SAXException, RuntimeException)
{
OSL_ASSERT(m_rDocumentHandler.is());
m_rDocumentHandler->setDocumentLocator(doclocator);
}
// Component management
Reference< XInterface > SAL_CALL CreateInstance( const Reference< XMultiServiceFactory > &r)
{
return Reference< XInterface >(( OWeakObject *)new XFlatXml(r));
}
Sequence< OUString > getSupportedServiceNames()
{
static Sequence < OUString > *pNames = 0;
if( ! pNames )<--- outer condition: !pNames
{
MutexGuard guard( Mutex::getGlobalMutex() );
if( !pNames )<--- identical inner condition: !pNames
{
static Sequence< OUString > seqNames(1);
seqNames.getArray()[0] = OUString(
"devguide.officedev.samples.filter.FlatXmlCpp");
pNames = &seqNames;
}
}
return *pNames;
}
}
using namespace XFlatXml;
#define IMPLEMENTATION_NAME "devguide.officedev.samples.filter.FlatXmlCpp"
extern "C"
{
SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(
const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
{
void * pRet = 0;
if (pServiceManager && rtl_str_compare( pImplName, IMPLEMENTATION_NAME ) == 0)
{
Reference< XSingleServiceFactory > xFactory( createSingleFactory(
reinterpret_cast< XMultiServiceFactory * >( pServiceManager ),
OUString::createFromAscii( pImplName ),
CreateInstance, getSupportedServiceNames() ) );
if (xFactory.is())
{
xFactory->acquire();
pRet = xFactory.get();
}
}
return pRet;
}
SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment(
char const ** ppEnvTypeName, uno_Environment **)
{
*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}
} // extern "C"
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|