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Diffstat (limited to 'sc/source/core/tool/formulaparserpool.cxx')
| -rw-r--r-- | sc/source/core/tool/formulaparserpool.cxx | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/sc/source/core/tool/formulaparserpool.cxx b/sc/source/core/tool/formulaparserpool.cxx new file mode 100644 index 000000000000..75d1c874eba8 --- /dev/null +++ b/sc/source/core/tool/formulaparserpool.cxx @@ -0,0 +1,168 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_sc.hxx" + +#include "formulaparserpool.hxx" +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/container/XContentEnumerationAccess.hpp> +#include <com/sun/star/lang/XComponent.hpp> +#include <com/sun/star/lang/XSingleComponentFactory.hpp> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <com/sun/star/sheet/XFilterFormulaParser.hpp> +#include <rtl/instance.hxx> +#include <comphelper/processfactory.hxx> +#include <sfx2/objsh.hxx> +#include "document.hxx" + +using ::rtl::OUString; +using ::rtl::OUStringHash; +using namespace ::com::sun::star::beans; +using namespace ::com::sun::star::container; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::sheet; +using namespace ::com::sun::star::uno; + +// ============================================================================ + +namespace { + +class ScParserFactoryMap +{ +public: + explicit ScParserFactoryMap(); + + Reference< XFormulaParser > createFormulaParser( + const Reference< XComponent >& rxComponent, + const OUString& rNamespace ); + +private: + typedef ::std::hash_map< + OUString, + Reference< XSingleComponentFactory >, + OUStringHash, + ::std::equal_to< OUString > > FactoryMap; + + Reference< XComponentContext > mxContext; /// Default context of global process factory. + FactoryMap maFactories; /// All parser factories, mapped by formula namespace. +}; + +ScParserFactoryMap::ScParserFactoryMap() +{ + try + { + // get process factory and default component context + Reference< XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory(), UNO_SET_THROW ); + Reference< XPropertySet > xPropSet( xFactory, UNO_QUERY_THROW ); + mxContext.set( xPropSet->getPropertyValue( OUString( RTL_CONSTASCII_USTRINGPARAM( "DefaultContext" ) ) ), UNO_QUERY_THROW ); + + // enumerate all implementations of the FormulaParser service + Reference< XContentEnumerationAccess > xFactoryEA( xFactory, UNO_QUERY_THROW ); + Reference< XEnumeration > xEnum( xFactoryEA->createContentEnumeration( OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.sheet.FilterFormulaParser" ) ) ), UNO_SET_THROW ); + while( xEnum->hasMoreElements() ) try // single try/catch for every element + { + // create an instance of the formula parser implementation + Reference< XSingleComponentFactory > xCompFactory( xEnum->nextElement(), UNO_QUERY_THROW ); + Reference< XFilterFormulaParser > xParser( xCompFactory->createInstanceWithContext( mxContext ), UNO_QUERY_THROW ); + + // store factory in the map + OUString aNamespace = xParser->getSupportedNamespace(); + if( aNamespace.getLength() > 0 ) + maFactories[ aNamespace ] = xCompFactory; + } + catch( Exception& ) + { + } + } + catch( Exception& ) + { + } +} + +Reference< XFormulaParser > ScParserFactoryMap::createFormulaParser( + const Reference< XComponent >& rxComponent, const OUString& rNamespace ) +{ + Reference< XFormulaParser > xParser; + FactoryMap::const_iterator aIt = maFactories.find( rNamespace ); + if( aIt != maFactories.end() ) try + { + Sequence< Any > aArgs( 1 ); + aArgs[ 0 ] <<= rxComponent; + xParser.set( aIt->second->createInstanceWithArgumentsAndContext( aArgs, mxContext ), UNO_QUERY_THROW ); + } + catch( Exception& ) + { + } + return xParser; +} + +struct ScParserFactorySingleton : public ::rtl::Static< ScParserFactoryMap, ScParserFactorySingleton > {}; + +} // namespace + +// ============================================================================ + +ScFormulaParserPool::ScFormulaParserPool( const ScDocument& rDoc ) : + mrDoc( rDoc ) +{ +} + +ScFormulaParserPool::~ScFormulaParserPool() +{ +} + +bool ScFormulaParserPool::hasFormulaParser( const OUString& rNamespace ) +{ + return getFormulaParser( rNamespace ).is(); +} + +Reference< XFormulaParser > ScFormulaParserPool::getFormulaParser( const OUString& rNamespace ) +{ + // try to find an existing parser entry + ParserMap::iterator aIt = maParsers.find( rNamespace ); + if( aIt != maParsers.end() ) + return aIt->second; + + // always create a new entry in the map (even if the following initialization fails) + Reference< XFormulaParser >& rxParser = maParsers[ rNamespace ]; + + // try to create a new parser object + if( SfxObjectShell* pDocShell = mrDoc.GetDocumentShell() ) try + { + Reference< XComponent > xComponent( pDocShell->GetModel(), UNO_QUERY_THROW ); + ScParserFactoryMap& rFactoryMap = ScParserFactorySingleton::get(); + rxParser = rFactoryMap.createFormulaParser( xComponent, rNamespace ); + } + catch( Exception& ) + { + } + return rxParser; +} + +// ============================================================================ + |