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_sd.hxx" 26 27 #include "SlsCacheConfiguration.hxx" 28 #include <vos/mutex.hxx> 29 #include <vcl/svapp.hxx> 30 31 #include <comphelper/processfactory.hxx> 32 #include <com/sun/star/lang/XMultiServiceFactory.hpp> 33 #include <com/sun/star/container/XHierarchicalNameAccess.hpp> 34 #ifndef _COM_SUN_STAR_CONTAINER_PROPERTYVALUE_HPP_ 35 #include <com/sun/star/beans/PropertyValue.hpp> 36 #endif 37 38 using namespace ::com::sun::star; 39 using namespace ::com::sun::star::uno; 40 41 namespace sd { namespace slidesorter { namespace cache { 42 43 ::boost::shared_ptr<CacheConfiguration> CacheConfiguration::mpInstance; 44 ::boost::weak_ptr<CacheConfiguration> CacheConfiguration::mpWeakInstance; 45 Timer CacheConfiguration::maReleaseTimer; 46 47 48 49 ::boost::shared_ptr<CacheConfiguration> CacheConfiguration::Instance (void) 50 { 51 ::vos::OGuard aSolarGuard (Application::GetSolarMutex()); 52 if (mpInstance.get() == NULL) 53 { 54 // Maybe somebody else kept a previously created instance alive. 55 if ( ! mpWeakInstance.expired()) 56 mpInstance = ::boost::shared_ptr<CacheConfiguration>(mpWeakInstance); 57 if (mpInstance.get() == NULL) 58 { 59 // We have to create a new instance. 60 mpInstance.reset(new CacheConfiguration()); 61 mpWeakInstance = mpInstance; 62 // Prepare to release this instance in the near future. 63 maReleaseTimer.SetTimeoutHdl( 64 LINK(mpInstance.get(),CacheConfiguration,TimerCallback)); 65 maReleaseTimer.SetTimeout(5000 /* 5s */); 66 maReleaseTimer.Start(); 67 } 68 } 69 return mpInstance; 70 } 71 72 73 74 75 CacheConfiguration::CacheConfiguration (void) 76 { 77 // Get the cache size from configuration. 78 const ::rtl::OUString sConfigurationProviderServiceName( 79 RTL_CONSTASCII_USTRINGPARAM( 80 "com.sun.star.configuration.ConfigurationProvider")); 81 const ::rtl::OUString sPathToImpressConfigurationRoot( 82 RTL_CONSTASCII_USTRINGPARAM("/org.openoffice.Office.Impress/")); 83 const ::rtl::OUString sPathToNode( 84 RTL_CONSTASCII_USTRINGPARAM( 85 "MultiPaneGUI/SlideSorter/PreviewCache")); 86 87 try 88 { 89 do 90 { 91 // Obtain access to the configuration. 92 Reference<lang::XMultiServiceFactory> xProvider ( 93 ::comphelper::getProcessServiceFactory()->createInstance( 94 sConfigurationProviderServiceName), 95 UNO_QUERY); 96 if ( ! xProvider.is()) 97 break; 98 99 // Obtain access to Impress configuration. 100 Sequence<Any> aCreationArguments(3); 101 aCreationArguments[0] = makeAny(beans::PropertyValue( 102 ::rtl::OUString( 103 RTL_CONSTASCII_USTRINGPARAM("nodepath")), 104 0, 105 makeAny(sPathToImpressConfigurationRoot), 106 beans::PropertyState_DIRECT_VALUE)); 107 aCreationArguments[1] = makeAny(beans::PropertyValue( 108 ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("depth")), 109 0, 110 makeAny((sal_Int32)-1), 111 beans::PropertyState_DIRECT_VALUE)); 112 aCreationArguments[2] = makeAny(beans::PropertyValue( 113 ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("lazywrite")), 114 0, 115 makeAny(true), 116 beans::PropertyState_DIRECT_VALUE)); 117 ::rtl::OUString sAccessService (::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( 118 "com.sun.star.configuration.ConfigurationAccess"))); 119 Reference<XInterface> xRoot (xProvider->createInstanceWithArguments( 120 sAccessService, aCreationArguments)); 121 if ( ! xRoot.is()) 122 break; 123 Reference<container::XHierarchicalNameAccess> xHierarchy (xRoot, UNO_QUERY); 124 if ( ! xHierarchy.is()) 125 break; 126 127 // Get the node for the slide sorter preview cache. 128 mxCacheNode = Reference<container::XNameAccess>( 129 xHierarchy->getByHierarchicalName(sPathToNode), 130 UNO_QUERY); 131 } 132 while (false); 133 } 134 catch (RuntimeException aException) 135 { 136 (void)aException; 137 } 138 catch (Exception aException) 139 { 140 (void)aException; 141 } 142 } 143 144 145 146 147 Any CacheConfiguration::GetValue (const ::rtl::OUString& rName) 148 { 149 Any aResult; 150 151 if (mxCacheNode != NULL) 152 { 153 try 154 { 155 aResult = mxCacheNode->getByName(rName); 156 } 157 catch (Exception aException) 158 { 159 (void)aException; 160 } 161 } 162 163 return aResult; 164 } 165 166 167 168 169 IMPL_LINK(CacheConfiguration,TimerCallback, Timer*,EMPTYARG) 170 { 171 // Release out reference to the instance. 172 mpInstance.reset(); 173 return 0; 174 } 175 176 177 } } } // end of namespace ::sd::slidesorter::cache 178