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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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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
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11 * http://www.apache.org/licenses/LICENSE-2.0
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13 * Unless required by applicable law or agreed to in writing,
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
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18 * under the License.
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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
ScParserFactoryMap()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
createFormulaParser(const Reference<XComponent> & rxComponent,const OUString & rNamespace)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
ScFormulaParserPool(const ScDocument & rDoc)117 ScFormulaParserPool::ScFormulaParserPool( const ScDocument& rDoc ) :
118 mrDoc( rDoc )
119 {
120 }
121
~ScFormulaParserPool()122 ScFormulaParserPool::~ScFormulaParserPool()
123 {
124 }
125
hasFormulaParser(const OUString & rNamespace)126 bool ScFormulaParserPool::hasFormulaParser( const OUString& rNamespace )
127 {
128 return getFormulaParser( rNamespace ).is();
129 }
130
getFormulaParser(const OUString & rNamespace)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