397 lines
16 KiB
C++
397 lines
16 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: saxeventkeeperimpl.hxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: rt $ $Date: 2005-09-09 17:18:13 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _SAXEVENTKEEPERIMPL_HXX
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#define _SAXEVENTKEEPERIMPL_HXX
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#ifndef _COM_SUN_STAR_XML_CRYPTO_SAX_XSECURITYSAXEVENTKEEPER_HPP_
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#include <com/sun/star/xml/crypto/sax/XSecuritySAXEventKeeper.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_CRYPTO_SAX_XREFERENCERESOLVEDBROADCASTER_HPP_
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#include <com/sun/star/xml/crypto/sax/XReferenceResolvedBroadcaster.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_CRYPTO_SAX_XSAXEVENTKEEPERSTATUSCHANGEBROADCASTER_HPP_
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#include <com/sun/star/xml/crypto/sax/XSAXEventKeeperStatusChangeBroadcaster.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_CRYPTO_SAX_XSAXEVENTKEEPERSTATUSCHANGELISTENER_HPP_
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#include <com/sun/star/xml/crypto/sax/XSAXEventKeeperStatusChangeListener.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_CSAX_XCOMPRESSEDDOCUMENTHANDLER_HPP_
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#include <com/sun/star/xml/csax/XCompressedDocumentHandler.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_WRAPPER_XXMLDOCUMENTWRAPPER_HPP_
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#include <com/sun/star/xml/wrapper/XXMLDocumentWrapper.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_SAX_XDOCUMENTHANDLER_HPP_
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#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
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#endif
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#ifndef _COM_SUN_STAR_LANG_XINITIALIZATION_HPP_
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#include <com/sun/star/lang/XInitialization.hpp>
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#endif
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#ifndef _COM_SUN_STAR_LANG_XSERVICEINFO_HPP_
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#endif
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#ifndef _CPPUHELPER_IMPLBASE6_HXX_
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#include <cppuhelper/implbase6.hxx>
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#endif
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#include "buffernode.hxx"
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#include "elementmark.hxx"
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#include "elementcollector.hxx"
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#ifndef INCLUDED_VECTOR
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#include <vector>
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#define INCLUDED_VECTOR
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#endif
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class SAXEventKeeperImpl : public cppu::WeakImplHelper6
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<
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com::sun::star::xml::crypto::sax::XSecuritySAXEventKeeper,
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com::sun::star::xml::crypto::sax::XReferenceResolvedBroadcaster,
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com::sun::star::xml::crypto::sax::XSAXEventKeeperStatusChangeBroadcaster,
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com::sun::star::xml::sax::XDocumentHandler,
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com::sun::star::lang::XInitialization,
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com::sun::star::lang::XServiceInfo
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>
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/****** SAXEventKeeperImpl.hxx/CLASS SAXEventKeeperImpl ***********************
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*
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* NAME
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* SAXEventKeeperImpl -- SAX events buffer controller
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*
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* FUNCTION
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* Controls SAX events to be bufferred, and controls bufferred SAX events
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* to be released.
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*
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* HISTORY
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* 05.01.2004 - Interface supported: XSecuritySAXEventKeeper,
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* XReferenceResolvedBroadcaster,
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* XSAXEventKeeperStatusChangeBroadcaster,
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* XDocumentHandler, XInitialization, XServiceInfo
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*
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* AUTHOR
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* Michael Mi
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* Email: michael.mi@sun.com
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******************************************************************************/
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{
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private:
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/*
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* the XMLDocumentWrapper component which maintains all bufferred SAX
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* in DOM format.
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*/
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com::sun::star::uno::Reference<
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com::sun::star::xml::wrapper::XXMLDocumentWrapper >
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m_xXMLDocument;
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/*
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* the document handler provided by the XMLDocumentWrapper component.
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*/
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com::sun::star::uno::Reference<
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com::sun::star::xml::sax::XDocumentHandler > m_xDocumentHandler;
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/*
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* the compressed document handler provided by the XMLDocumentWrapper
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* component, the handler has more effient method definition that the
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* normal document handler.
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*/
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com::sun::star::uno::Reference<
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com::sun::star::xml::csax::XCompressedDocumentHandler >
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m_xCompressedDocumentHandler;
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/*
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* a listener which receives this SAXEventKeeper's status change
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* notification.
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* Based on the status changes, the listener can decide whether the
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* SAXEventKeeper should chain on/chain off the SAX chain, or whether
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* the SAXEventKeeper is useless any long.
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*/
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com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XSAXEventKeeperStatusChangeListener >
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m_xSAXEventKeeperStatusChangeListener;
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/*
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* the root node of the BufferNode tree.
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* the BufferNode tree is used to keep track of all bufferred elements,
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* it has the same structure with the document which maintains those
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* elements physically.
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*/
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BufferNode* m_pRootBufferNode;
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/*
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* the current active BufferNode.
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* this is used to keep track the current location in the BufferNode tree,
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* the next generated BufferNode will become a child BufferNode of it.
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*/
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BufferNode* m_pCurrentBufferNode;
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/*
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* the next Id for a coming ElementMark.
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* the variable is increased by 1 when an new ElementMark is generated,
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* in this way, we can promise the Id of any ElementMark is unique.
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*/
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sal_Int32 m_nNextElementMarkId;
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/*
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* maintains a collection of all ElementMarks.
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*/
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std::vector< const ElementMark* > m_vElementMarkBuffers;
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/*
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* maintains a list of new ElementCollectors that will be created
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* on the element represented by the next incoming startElement SAX
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* event.
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* The reason that such the m_vNewElementCollectors is necessary
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* is: when an ElementCollector is asked to create, it can't be
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* created completely at once, because the BufferNode it will be
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* working on has not been created until the next startElement
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* SAX event comes.
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*/
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std::vector< const ElementCollector* > m_vNewElementCollectors;
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/*
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* maintains the new Blocker that will be created
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* on the element represented by the next incoming startElement SAX
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* event.
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*/
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ElementMark* m_pNewBlocker;
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/*
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* the document handler to which all received SAX events will be
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* forwarded.
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*/
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com::sun::star::uno::Reference<
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com::sun::star::xml::sax::XDocumentHandler > m_xNextHandler;
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/*
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* the current BufferNode which prevents the SAX events to be
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* forwarded to the m_xNextHandler.
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*/
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BufferNode* m_pCurrentBlockingBufferNode;
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/*
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* maintains a list of ElementMark that has been asked to release.
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* Because during processing a request of releasing an ElementMark,
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* another releasing ElementMark request can be invoked. To avoid
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* reentering the same method, a such request only add that ElementMark
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* into this ElementMark list, then all ElementMarks will be processed in
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* order.
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*/
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std::vector< sal_Int32 > m_vReleasedElementMarkBuffers;
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/*
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* a flag to indicate whether the ElementMark releasing process is runing.
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* When a releasing request comes, the assigned ElementMark is added to
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* the m_vReleasedElementMarkBuffers first, then this flag is checked.
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* If the ElementMark releasing process is not running, then call that
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* method.
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*/
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bool m_bIsReleasing;
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/*
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* a flag to indicate whether it is the "Forwarding" mode now.
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* A "Forwarding" mode means that all received SAX events are from the
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* XMLDocumentWrapper component, instead of up-stream component in the
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* SAX chain.
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* The difference between "Forwarding" mode and normal mode is that:
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* no SAX events need to be transferred to the XMLDocumentWrapper component
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* again even if a buffer request happens.
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*/
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bool m_bIsForwarding;
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void setCurrentBufferNode(BufferNode* pBufferNode);
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BufferNode* addNewElementMarkBuffers();
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ElementMark* findElementMarkBuffer(sal_Int32 nId) const;
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void removeElementMarkBuffer(sal_Int32 nId);
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rtl::OUString printBufferNode(
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BufferNode* pBufferNode, sal_Int32 nIndent) const;
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com::sun::star::uno::Sequence< com::sun::star::uno::Reference<
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com::sun::star::xml::wrapper::XXMLElementWrapper > >
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collectChildWorkingElement(BufferNode* pBufferNode) const;
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void smashBufferNode(
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BufferNode* pBufferNode, bool bClearRoot) const;
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BufferNode* findNextBlockingBufferNode(
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BufferNode* pStartBufferNode) const;
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void diffuse(BufferNode* pBufferNode) const;
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void releaseElementMarkBuffer();
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void markElementMarkBuffer(sal_Int32 nId);
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sal_Int32 createElementCollector(
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sal_Int32 nSecurityId,
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com::sun::star::xml::crypto::sax::ElementMarkPriority nPriority,
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bool bModifyElement,
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const com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XReferenceResolvedListener>&
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xReferenceResolvedListener);
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sal_Int32 createBlocker(sal_Int32 nSecurityId);
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public:
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SAXEventKeeperImpl();
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virtual ~SAXEventKeeperImpl();
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/* XSAXEventKeeper */
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virtual sal_Int32 SAL_CALL addElementCollector( )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL removeElementCollector( sal_Int32 id )
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throw (com::sun::star::uno::RuntimeException);
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virtual sal_Int32 SAL_CALL addBlocker( )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL removeBlocker( sal_Int32 id )
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throw (com::sun::star::uno::RuntimeException);
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virtual sal_Bool SAL_CALL isBlocking( )
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throw (com::sun::star::uno::RuntimeException);
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virtual com::sun::star::uno::Reference<
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com::sun::star::xml::wrapper::XXMLElementWrapper > SAL_CALL
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getElement( sal_Int32 id )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL setElement(
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sal_Int32 id,
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const com::sun::star::uno::Reference<
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com::sun::star::xml::wrapper::XXMLElementWrapper >&
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aElement )
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throw (com::sun::star::uno::RuntimeException);
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virtual com::sun::star::uno::Reference<
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com::sun::star::xml::sax::XDocumentHandler > SAL_CALL
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setNextHandler( const com::sun::star::uno::Reference<
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com::sun::star::xml::sax::XDocumentHandler >& xNewHandler )
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throw (com::sun::star::uno::RuntimeException);
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virtual rtl::OUString SAL_CALL printBufferNodeTree()
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throw (com::sun::star::uno::RuntimeException);
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virtual com::sun::star::uno::Reference<
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com::sun::star::xml::wrapper::XXMLElementWrapper > SAL_CALL
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getCurrentBlockingNode()
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throw (com::sun::star::uno::RuntimeException);
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/* XSecuritySAXEventKeeper */
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virtual sal_Int32 SAL_CALL addSecurityElementCollector(
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com::sun::star::xml::crypto::sax::ElementMarkPriority priority,
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sal_Bool modifyElement )
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throw (com::sun::star::uno::RuntimeException);
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virtual sal_Int32 SAL_CALL cloneElementCollector(
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sal_Int32 referenceId,
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com::sun::star::xml::crypto::sax::ElementMarkPriority priority )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL setSecurityId( sal_Int32 id, sal_Int32 securityId )
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throw (com::sun::star::uno::RuntimeException);
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/* XReferenceResolvedBroadcaster */
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virtual void SAL_CALL addReferenceResolvedListener(
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sal_Int32 referenceId,
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const com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XReferenceResolvedListener >&
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listener )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL removeReferenceResolvedListener(
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sal_Int32 referenceId,
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const com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XReferenceResolvedListener >&
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listener )
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throw (com::sun::star::uno::RuntimeException);
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/* XSAXEventKeeperStatusChangeBroadcaster */
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virtual void SAL_CALL addSAXEventKeeperStatusChangeListener(
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const com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XSAXEventKeeperStatusChangeListener >&
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listener )
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throw (com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL removeSAXEventKeeperStatusChangeListener(
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const com::sun::star::uno::Reference<
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com::sun::star::xml::crypto::sax::XSAXEventKeeperStatusChangeListener >&
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listener )
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throw (com::sun::star::uno::RuntimeException);
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/* XDocumentHandler */
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virtual void SAL_CALL startDocument( )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL endDocument( )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL startElement(
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const rtl::OUString& aName,
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const com::sun::star::uno::Reference< com::sun::star::xml::sax::XAttributeList >&
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xAttribs )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL endElement( const rtl::OUString& aName )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL characters( const rtl::OUString& aChars )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL ignorableWhitespace( const rtl::OUString& aWhitespaces )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL processingInstruction(
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const rtl::OUString& aTarget, const rtl::OUString& aData )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL setDocumentLocator(
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const com::sun::star::uno::Reference< com::sun::star::xml::sax::XLocator >& xLocator )
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throw (com::sun::star::xml::sax::SAXException, com::sun::star::uno::RuntimeException);
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/* XInitialization */
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virtual void SAL_CALL initialize(
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const com::sun::star::uno::Sequence< com::sun::star::uno::Any >& aArguments )
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throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException);
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/* XServiceInfo */
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virtual rtl::OUString SAL_CALL getImplementationName( )
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throw (com::sun::star::uno::RuntimeException);
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virtual sal_Bool SAL_CALL supportsService( const rtl::OUString& ServiceName )
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throw (com::sun::star::uno::RuntimeException);
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virtual com::sun::star::uno::Sequence< rtl::OUString > SAL_CALL getSupportedServiceNames( )
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throw (com::sun::star::uno::RuntimeException);
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};
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rtl::OUString SAXEventKeeperImpl_getImplementationName()
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throw ( com::sun::star::uno::RuntimeException );
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sal_Bool SAL_CALL SAXEventKeeperImpl_supportsService( const rtl::OUString& ServiceName )
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throw ( com::sun::star::uno::RuntimeException );
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com::sun::star::uno::Sequence< rtl::OUString > SAL_CALL SAXEventKeeperImpl_getSupportedServiceNames( )
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throw ( com::sun::star::uno::RuntimeException );
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com::sun::star::uno::Reference< com::sun::star::uno::XInterface >
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SAL_CALL SAXEventKeeperImpl_createInstance( const com::sun::star::uno::Reference< com::sun::star::lang::XMultiServiceFactory > & rSMgr)
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throw ( com::sun::star::uno::Exception );
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#endif
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