diff options
Diffstat (limited to 'sc/source/core/tool/formulaparserpool.cxx')
-rw-r--r-- | sc/source/core/tool/formulaparserpool.cxx | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sc/source/core/tool/formulaparserpool.cxx b/sc/source/core/tool/formulaparserpool.cxx new file mode 100644 index 000000000..00c5c9108 --- /dev/null +++ b/sc/source/core/tool/formulaparserpool.cxx @@ -0,0 +1,142 @@ +/* -*- 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/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#include <formulaparserpool.hxx> +#include <com/sun/star/container/XContentEnumerationAccess.hpp> +#include <com/sun/star/frame/XModel.hpp> +#include <com/sun/star/lang/XComponent.hpp> +#include <com/sun/star/lang/XSingleComponentFactory.hpp> +#include <com/sun/star/sheet/XFilterFormulaParser.hpp> +#include <comphelper/processfactory.hxx> +#include <sfx2/objsh.hxx> +#include <document.hxx> + +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::unordered_map< + OUString, Reference< XSingleComponentFactory > > FactoryMap; + + Reference< XComponentContext > mxContext; /// Global component context. + FactoryMap maFactories; /// All parser factories, mapped by formula namespace. +}; + +ScParserFactoryMap::ScParserFactoryMap() : + mxContext( ::comphelper::getProcessComponentContext() ) +{ + if( !mxContext.is() ) + return; + + try + { + // enumerate all implementations of the FormulaParser service + Reference< XContentEnumerationAccess > xFactoryEA( mxContext->getServiceManager(), UNO_QUERY_THROW ); + Reference< XEnumeration > xEnum( xFactoryEA->createContentEnumeration( "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.isEmpty() ) + 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{ Any(rxComponent) }; + xParser.set( aIt->second->createInstanceWithArgumentsAndContext( aArgs, mxContext ), UNO_QUERY_THROW ); + } + catch( Exception& ) + { + } + return xParser; +} + +} // 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 + { + static ScParserFactoryMap theScParserFactoryMap; + + Reference< XComponent > xComponent( pDocShell->GetModel(), UNO_QUERY_THROW ); + rxParser = theScParserFactoryMap.createFormulaParser( xComponent, rNamespace ); + } + catch( Exception& ) + { + } + return rxParser; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |