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/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#ifndef _SAX_SAXPARSER_HXX_
#define _SAX_SAXPARSER_HXX_
#include "sax/dllapi.h"
#include <com/sun/star/xml/sax/InputSource.hpp>
#include <com/sun/star/xml/sax/SAXException.hpp>
#include <rtl/ref.hxx>
#ifndef BOOST_SHARED_PTR_HPP_INCLUDED
#include <boost/shared_ptr.hpp>
#endif
#include <map>
#include <memory>
#include "sax/tools/saxobject.hxx"
#include "sax/tools/attributemap.hxx"
#include <boost/scoped_ptr.hpp>
namespace sax
{
// --------------------------------------------------------------------
class SaxParser;
class SaxContext;
typedef rtl::Reference< SaxParser > SaxParserRef;
typedef rtl::Reference< SaxContext > SaxContextRef;
/** base class for each implementation that handles all sax calls for an element */
class SAX_DLLPUBLIC SaxContext : public SaxObject
{
public:
SaxContext( const SaxParserRef& xParser );
virtual ~SaxContext();
/** receives notification of the beginning of an element .
*/
virtual void StartElement( sal_uInt32 aElementToken, const AttributeMap& rAttributes );
/** receives notification of character data.
*/
virtual void Characters( const sal_Char *pCharacters, sal_uInt32 nLength );
/** receives notification of the end of an element.
*/
virtual void EndElement( sal_uInt32 aElementToken );
/** is called by the SaxParser for each child element inside this instances element */
virtual SaxContextRef CreateContext( sal_uInt32 aElementToken, const AttributeMap& rAttributes );
const SaxParserRef& getParser() const { return mxParser; }
private:
SaxParserRef mxParser;
};
// --------------------------------------------------------------------
class SaxParserImpl;
/** base class for loading a single xml stream. Derived classes must call
parseStream to start parsing and are notified through virtual methods
for sax events. */
class SAX_DLLPUBLIC SaxParser : public SaxObject
{
public:
SaxParser();
virtual ~SaxParser();
/** returns the unicode representation of a token from the xml stream
that was unknown to the SaxTokenMap from the derived class. */
rtl::OUString GetCustomToken( sal_uInt32 nToken );
/** returns the unicode representation of a namespace from the xml stream
that was unknown to the SaxTokenMap from the derived class. */
rtl::OUString GetCustomNamespace( sal_uInt32 nToken );
/** returns the system id of the currently parsed stream */
const rtl::OUString& GetSystemId() const;
/** starts parsing of the source xml stream provided in the given sax InputSource */
virtual void parseStream( const ::com::sun::star::xml::sax::InputSource& rInputSource ) throw (::com::sun::star::xml::sax::SAXException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
/** is called once when parsing of the xml stream starts */
virtual void StartDocument();
/** is called once for each element in the xml stream.
Default implementation calls StartElement() on the topmost contex. */
virtual void StartElement( sal_uInt32 aElementToken, const AttributeMap& rAttributes );
/** is called for characters between elements in the xml stream.
Default implementation calls Characters() on the topmost contex.
@param pCharacters The characters in utf-8 encoding
@param nLength the size in bytes of the utf-8 string
*/
virtual void Characters( const sal_Char *pCharacters, sal_uInt32 nLength );
/** is called once at the end of each element in the xml stream.
Default implementation calls EndElement() on the topmost contex. */
virtual void EndElement( sal_uInt32 aElementToken );
/** is called once after parsing the xml stream is finished */
virtual void EndDocument();
/** is called once for each element in the xml stream and before StartElement() is called.
Default implementation calls CreateContext at the topmost context.
Returned contexts are pushed on a stack and removed after the corresponding EndElement call. */
virtual SaxContextRef CreateContext( sal_uInt32 aElementToken, const AttributeMap& rAttributes );
/** must be implemented from derived classes. The returned SaxTokenMap is used to convert
element names and attribute names and values to tokens. */
virtual const SaxTokenMapRef& getTokenMap() = 0;
private:
void AddNamespace( sal_uInt32 nNamespaceId, sal_uInt32 nNamespaceURIToken );
boost::scoped_ptr< SaxParserImpl > mpImpl;
};
}
#endif // _SAX_SAXPARSER_HXX_
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