1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_sc.hxx" 26 27 #include "formulaparserpool.hxx" 28 #include <com/sun/star/beans/XPropertySet.hpp> 29 #include <com/sun/star/container/XContentEnumerationAccess.hpp> 30 #include <com/sun/star/lang/XComponent.hpp> 31 #include <com/sun/star/lang/XSingleComponentFactory.hpp> 32 #include <com/sun/star/sheet/XFilterFormulaParser.hpp> 33 #include <rtl/instance.hxx> 34 #include <comphelper/processfactory.hxx> 35 #include <sfx2/objsh.hxx> 36 #include "document.hxx" 37 38 using ::rtl::OUString; 39 using ::rtl::OUStringHash; 40 using namespace ::com::sun::star::beans; 41 using namespace ::com::sun::star::container; 42 using namespace ::com::sun::star::lang; 43 using namespace ::com::sun::star::sheet; 44 using namespace ::com::sun::star::uno; 45 46 // ============================================================================ 47 48 namespace { 49 50 class ScParserFactoryMap 51 { 52 public: 53 explicit ScParserFactoryMap(); 54 55 Reference< XFormulaParser > createFormulaParser( 56 const Reference< XComponent >& rxComponent, 57 const OUString& rNamespace ); 58 59 private: 60 typedef ::std::hash_map< OUString, Reference< XSingleComponentFactory >, OUStringHash > FactoryMap; 61 62 Reference< XComponentContext > mxContext; /// Global component context. 63 FactoryMap maFactories; /// All parser factories, mapped by formula namespace. 64 }; 65 66 ScParserFactoryMap::ScParserFactoryMap() : 67 mxContext( ::comphelper::getProcessComponentContext() ) 68 { 69 if( mxContext.is() ) try 70 { 71 // enumerate all implementations of the FormulaParser service 72 Reference< XContentEnumerationAccess > xFactoryEA( mxContext->getServiceManager(), UNO_QUERY_THROW ); 73 Reference< XEnumeration > xEnum( xFactoryEA->createContentEnumeration( OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.sheet.FilterFormulaParser" ) ) ), UNO_SET_THROW ); 74 while( xEnum->hasMoreElements() ) try // single try/catch for every element 75 { 76 // create an instance of the formula parser implementation 77 Reference< XSingleComponentFactory > xCompFactory( xEnum->nextElement(), UNO_QUERY_THROW ); 78 Reference< XFilterFormulaParser > xParser( xCompFactory->createInstanceWithContext( mxContext ), UNO_QUERY_THROW ); 79 80 // store factory in the map 81 OUString aNamespace = xParser->getSupportedNamespace(); 82 if( aNamespace.getLength() > 0 ) 83 maFactories[ aNamespace ] = xCompFactory; 84 } 85 catch( Exception& ) 86 { 87 } 88 } 89 catch( Exception& ) 90 { 91 } 92 } 93 94 Reference< XFormulaParser > ScParserFactoryMap::createFormulaParser( 95 const Reference< XComponent >& rxComponent, const OUString& rNamespace ) 96 { 97 Reference< XFormulaParser > xParser; 98 FactoryMap::const_iterator aIt = maFactories.find( rNamespace ); 99 if( aIt != maFactories.end() ) try 100 { 101 Sequence< Any > aArgs( 1 ); 102 aArgs[ 0 ] <<= rxComponent; 103 xParser.set( aIt->second->createInstanceWithArgumentsAndContext( aArgs, mxContext ), UNO_QUERY_THROW ); 104 } 105 catch( Exception& ) 106 { 107 } 108 return xParser; 109 } 110 111 struct ScParserFactorySingleton : public ::rtl::Static< ScParserFactoryMap, ScParserFactorySingleton > {}; 112 113 } // namespace 114 115 // ============================================================================ 116 117 ScFormulaParserPool::ScFormulaParserPool( const ScDocument& rDoc ) : 118 mrDoc( rDoc ) 119 { 120 } 121 122 ScFormulaParserPool::~ScFormulaParserPool() 123 { 124 } 125 126 bool ScFormulaParserPool::hasFormulaParser( const OUString& rNamespace ) 127 { 128 return getFormulaParser( rNamespace ).is(); 129 } 130 131 Reference< XFormulaParser > ScFormulaParserPool::getFormulaParser( const OUString& rNamespace ) 132 { 133 // try to find an existing parser entry 134 ParserMap::iterator aIt = maParsers.find( rNamespace ); 135 if( aIt != maParsers.end() ) 136 return aIt->second; 137 138 // always create a new entry in the map (even if the following initialization fails) 139 Reference< XFormulaParser >& rxParser = maParsers[ rNamespace ]; 140 141 // try to create a new parser object 142 if( SfxObjectShell* pDocShell = mrDoc.GetDocumentShell() ) try 143 { 144 Reference< XComponent > xComponent( pDocShell->GetModel(), UNO_QUERY_THROW ); 145 ScParserFactoryMap& rFactoryMap = ScParserFactorySingleton::get(); 146 rxParser = rFactoryMap.createFormulaParser( xComponent, rNamespace ); 147 } 148 catch( Exception& ) 149 { 150 } 151 return rxParser; 152 } 153 154 // ============================================================================ 155 156