341 lines
12 KiB
C++
341 lines
12 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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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: basicupdatemerger.cxx,v $
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* $Revision: 1.10 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_configmgr.hxx"
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#include "basicupdatemerger.hxx"
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#include "layerdefaultremover.hxx"
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#ifndef INCLUDED_ALGORITHM
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#include <algorithm>
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#define INCLUDED_ALGORITHM
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#endif
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#ifndef INCLUDED_ITERATOR
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#include <iterator>
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#define INCLUDED_ITERATOR
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#endif
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// -----------------------------------------------------------------------------
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namespace configmgr
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{
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// -----------------------------------------------------------------------------
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namespace backend
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{
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// -----------------------------------------------------------------------------
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BasicUpdateMerger::BasicUpdateMerger( LayerSource const & _xSourceLayer )
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: m_xSourceLayer(_xSourceLayer)
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, m_xResultHandler()
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, m_nNesting(0)
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, m_bSkipping(false)
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{
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}
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// -----------------------------------------------------------------------------
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BasicUpdateMerger::~BasicUpdateMerger()
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{
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::readData( ResultHandler const & _xResultHandler )
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throw ( MalformedDataException, lang::NullPointerException,
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lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!_xResultHandler.is())
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{
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OUString sMsg( RTL_CONSTASCII_USTRINGPARAM("UpdateMerger: Error - NULL output handler unexpected") );
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throw lang::NullPointerException(sMsg,*this);
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}
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if (!m_xSourceLayer.is())
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{
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OUString sMsg( RTL_CONSTASCII_USTRINGPARAM("UpdateMerger: Error - No source layer set") );
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throw lang::NullPointerException(sMsg,*this);
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}
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try
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{
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m_xResultHandler = new LayerDefaultRemover(_xResultHandler);
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m_xSourceLayer->readData( this );
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}
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catch (uno::Exception & )
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{
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m_xResultHandler.clear();
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throw;
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}
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m_xResultHandler.clear();
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::startLayer( )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (m_nNesting)
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raiseMalformedDataException("UpdateMerger: Cannot start layer - layer already in progress");
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m_bSkipping = false;
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m_xResultHandler->startLayer();
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::endLayer( )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (m_nNesting > 0)
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raiseMalformedDataException("UpdateMerger: Cannot end layer - data handling still in progress");
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this->flushContext();
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m_xResultHandler->endLayer();
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::overrideNode( const OUString& aName, sal_Int16 aAttributes, sal_Bool bClear )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->overrideNode(aName, aAttributes, bClear);
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pushLevel(aName);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::addOrReplaceNode( const OUString& aName, sal_Int16 aAttributes )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->addOrReplaceNode(aName, aAttributes);
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pushLevel(aName);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::addOrReplaceNodeFromTemplate( const OUString& aName, const TemplateIdentifier& aTemplate, sal_Int16 aAttributes )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->addOrReplaceNodeFromTemplate(aName, aTemplate, aAttributes);
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pushLevel(aName);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::endNode( )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->endNode();
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popLevel();
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::dropNode( const OUString& aName )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->dropNode(aName);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::overrideProperty( const OUString& aName, sal_Int16 aAttributes, const uno::Type& aType, sal_Bool bClear )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->overrideProperty(aName, aAttributes, aType, bClear);
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pushLevel( OUString() ); // do not match context path to property names
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::endProperty( )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->endProperty();
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popLevel();
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::setPropertyValue( const uno::Any& aValue )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->setPropertyValue(aValue);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::setPropertyValueForLocale( const uno::Any& aValue, const OUString & aLocale )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->setPropertyValueForLocale(aValue,aLocale);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::addProperty( const OUString& aName, sal_Int16 aAttributes, const uno::Type& aType )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->addProperty(aName, aAttributes, aType);
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}
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// -----------------------------------------------------------------------------
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void SAL_CALL BasicUpdateMerger::addPropertyWithValue( const OUString& aName, sal_Int16 aAttributes, const uno::Any& aValue )
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throw (MalformedDataException, lang::WrappedTargetException, uno::RuntimeException)
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{
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if (!isSkipping())
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m_xResultHandler->addPropertyWithValue(aName, aAttributes, aValue);
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::raiseMalformedDataException(sal_Char const * pMsg)
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{
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OUString sMsg = OUString::createFromAscii(pMsg);
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throw MalformedDataException(sMsg, *this, uno::Any());
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::startSkipping()
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{
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OSL_PRECOND( m_nNesting == 0, "BasicUpdateMerger: starting to skip, while already forwarding data");
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m_nNesting = 1;
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m_bSkipping = true;
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: isHandling() is broken");
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OSL_POSTCOND( isSkipping(), "BasicUpdateMerger: isSkipping() is broken");
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::pushLevel(OUString const & _aContext)
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{
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if (m_nNesting > 0)
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{
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++m_nNesting;
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: level counting is broken" );
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}
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else if (m_nNesting < 0)
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{
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: level counting is broken" );
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}
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else if (m_aSearchPath.empty())
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{
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++m_nNesting;
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: level counting is broken" );
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}
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else if ( m_aSearchPath.back().equals(_aContext) ) // search path is reverse - see findContext()
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{
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OSL_ENSURE( m_nNesting == 0, "BasicUpdateMerger: level count while searching must be zero");
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m_aSearchPath.pop_back();
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}
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else // start forwarding
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{
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m_nNesting = 1;
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: level counting is broken" );
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OSL_POSTCOND(!isSkipping(), "BasicUpdateMerger: skip flag set while searching " );
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}
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::popLevel()
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{
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OSL_PRECOND( isHandling(), "BasicUpdateMerger: ending a node that wasn't handled here");
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if (m_nNesting > 0)
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{
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if (--m_nNesting == 0)
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m_bSkipping = false;
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}
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else if (m_nNesting == 0) // ending a context level, but the context is not yet gone
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{
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OSL_ENSURE( !m_aSearchPath.empty(), "BasicUpdateMerger: flushing a context that was already found");
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flushContext();
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leaveContext();
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}
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else
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{
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OSL_ENSURE( m_aSearchPath.empty(), "BasicUpdateMerger: Left an unfinished context" );
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}
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::findContext(ContextPath const & _aContext)
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{
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// make the context a *reverse* copy of the context path
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OSL_PRECOND( ! isHandling(), "BasicUpdateMerger: starting context search while still handling data");
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m_aSearchPath.clear();
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m_aSearchPath.reserve(_aContext.size());
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std::copy( _aContext.rbegin(), _aContext.rend(), std::back_inserter(m_aSearchPath) );
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::leaveContext()
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{
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OSL_PRECOND( !isHandling(), "BasicUpdateMerger: ending the context while still handling data or seaching the context");
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// force
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m_nNesting = -1;
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OSL_POSTCOND( ! isSkipping(), "BasicUpdateMerger: ending the context node while still skipping data");
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OSL_POSTCOND( isHandling(), "BasicUpdateMerger: cannot mark context as being handled to the end.");
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}
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// -----------------------------------------------------------------------------
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void BasicUpdateMerger::flushContext()
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{
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ContextPath::size_type nNesting = m_aSearchPath.size();
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while (!m_aSearchPath.empty())
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{
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m_xResultHandler->overrideNode(m_aSearchPath.back(), 0, false);
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m_aSearchPath.pop_back();
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}
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this->flushUpdate();
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while (nNesting > 0)
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{
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m_xResultHandler->endNode();
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--nNesting;
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}
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}
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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} // namespace
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// -----------------------------------------------------------------------------
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} // namespace
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