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179 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_FILTER_SOURCE_XSLTFILTER_LIBXSLTTRANSFORMER_HXX
#define INCLUDED_FILTER_SOURCE_XSLTFILTER_LIBXSLTTRANSFORMER_HXX
#include <deque>
#include <map>
#include <mutex>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xmlIO.h>
#include <libxslt/transform.h>
#include <libxml/xpathInternals.h>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implbase.hxx>
#include <rtl/ref.hxx>
#include <salhelper/thread.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XStreamListener.hpp>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/xml/xslt/XXSLTTransformer.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 ::std::map;
#define EXT_MODULE_OLE_URI "http://libreoffice.org/2011/xslt/ole"
namespace XSLT
{
class LibXSLTTransformer;
/*
* Reader provides a worker thread to perform the actual transformation.
* It pipes the streams provided by a LibXSLTTransformer
* instance through libxslt.
*/
class Reader : public salhelper::Thread
{
public:
Reader(LibXSLTTransformer* transformer);<--- Class 'Reader' has a constructor with 1 argument that is not explicit. [+]Class 'Reader' 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. <--- Class 'Reader' has a constructor with 1 argument that is not explicit. [+]Class 'Reader' 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.
int read(char * buffer, int len);
int write(const char * buffer, int len);
void forceStateStopped();
void closeOutput();
private:
virtual ~Reader() override;
static const sal_Int32 OUTPUT_BUFFER_SIZE;
static const sal_Int32 INPUT_BUFFER_SIZE;
LibXSLTTransformer* m_transformer;
Sequence<sal_Int8> m_readBuf;
Sequence<sal_Int8> m_writeBuf;
std::mutex m_mutex;
xsltTransformContextPtr m_tcontext;
virtual void execute() override;
static void registerExtensionModule();
};
/*
* LibXSLTTransformer provides a transforming pipe service to XSLTFilter.
*
* It implements XActiveDataSource, XActiveDataSink and XActiveDataControl
* to consume data. It also notifies upstream of important events such as
* begin and end of the transformation and of any errors that occur during
* transformation.
*
* TODO: Error reporting leaves room for improvement, currently.
*
* The actual transformation is done by a worker thread.
*
* See Reader below.
*/
class LibXSLTTransformer : public WeakImplHelper<css::xml::xslt::XXSLTTransformer>
{
private:
static const char* const PARAM_SOURCE_URL;
static const char* const PARAM_SOURCE_BASE_URL;
static const char* const PARAM_TARGET_URL;
static const char* const PARAM_TARGET_BASE_URL;
static const char* const PARAM_DOCTYPE_PUBLIC;
// the UNO ServiceFactory
css::uno::Reference<css::uno::XComponentContext> m_xContext;
css::uno::Reference<XInputStream> m_rInputStream;
css::uno::Reference<XOutputStream> m_rOutputStream;
typedef ::std::deque<css::uno::Reference<XStreamListener> > ListenerList;
ListenerList m_listeners;
OString m_styleSheetURL;
::std::map<const char *, OString> m_parameters;
rtl::Reference<Reader> m_Reader;
protected:
virtual ~LibXSLTTransformer() override {
if (m_Reader.is()) {
m_Reader->terminate();
m_Reader->forceStateStopped();
m_Reader->join();
}
}
public:
// ctor...
LibXSLTTransformer(const css::uno::Reference<css::uno::XComponentContext> &r);<--- Class 'LibXSLTTransformer' has a constructor with 1 argument that is not explicit. [+]Class 'LibXSLTTransformer' 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. <--- Class 'LibXSLTTransformer' has a constructor with 1 argument that is not explicit. [+]Class 'LibXSLTTransformer' 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.
// XActiveDataSink
virtual void SAL_CALL
setInputStream(const css::uno::Reference<XInputStream>& inputStream) override;
virtual css::uno::Reference<XInputStream> SAL_CALL
getInputStream() override;
// XActiveDataSource
virtual void SAL_CALL
setOutputStream(const css::uno::Reference<XOutputStream>& outputStream) override;
virtual css::uno::Reference<XOutputStream> SAL_CALL
getOutputStream() override;
// XActiveDataControl
virtual void SAL_CALL
addListener(const css::uno::Reference<XStreamListener>& listener) override;
virtual void SAL_CALL
removeListener(const css::uno::Reference<XStreamListener>& listener) override;
virtual void SAL_CALL
start() override;
virtual void SAL_CALL
terminate() override;
virtual void SAL_CALL
initialize(const Sequence<Any>& params) override;
void
done();
void
error(const OUString& msg);
const OString&
getStyleSheetURL() const { return m_styleSheetURL; }
const ::std::map<const char*, OString>&
getParameters() const { return m_parameters; }
const css::uno::Reference<css::uno::XComponentContext>&
getComponentContext() const {
return m_xContext;
}
};
}
#endif // INCLUDED_FILTER_SOURCE_XSLTFILTER_LIBXSLTTRANSFORMER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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