1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_sd.hxx" 30 31 #include "SlsCacheConfiguration.hxx" 32 #include <vos/mutex.hxx> 33 #include <vcl/svapp.hxx> 34 35 #include <comphelper/processfactory.hxx> 36 #include <com/sun/star/lang/XMultiServiceFactory.hpp> 37 #include <com/sun/star/container/XHierarchicalNameAccess.hpp> 38 #ifndef _COM_SUN_STAR_CONTAINER_PROPERTYVALUE_HPP_ 39 #include <com/sun/star/beans/PropertyValue.hpp> 40 #endif 41 42 using namespace ::com::sun::star; 43 using namespace ::com::sun::star::uno; 44 45 namespace sd { namespace slidesorter { namespace cache { 46 47 ::boost::shared_ptr<CacheConfiguration> CacheConfiguration::mpInstance; 48 ::boost::weak_ptr<CacheConfiguration> CacheConfiguration::mpWeakInstance; 49 Timer CacheConfiguration::maReleaseTimer; 50 51 52 53 ::boost::shared_ptr<CacheConfiguration> CacheConfiguration::Instance (void) 54 { 55 ::vos::OGuard aSolarGuard (Application::GetSolarMutex()); 56 if (mpInstance.get() == NULL) 57 { 58 // Maybe somebody else kept a previously created instance alive. 59 if ( ! mpWeakInstance.expired()) 60 mpInstance = ::boost::shared_ptr<CacheConfiguration>(mpWeakInstance); 61 if (mpInstance.get() == NULL) 62 { 63 // We have to create a new instance. 64 mpInstance.reset(new CacheConfiguration()); 65 mpWeakInstance = mpInstance; 66 // Prepare to release this instance in the near future. 67 maReleaseTimer.SetTimeoutHdl( 68 LINK(mpInstance.get(),CacheConfiguration,TimerCallback)); 69 maReleaseTimer.SetTimeout(5000 /* 5s */); 70 maReleaseTimer.Start(); 71 } 72 } 73 return mpInstance; 74 } 75 76 77 78 79 CacheConfiguration::CacheConfiguration (void) 80 { 81 // Get the cache size from configuration. 82 const ::rtl::OUString sConfigurationProviderServiceName( 83 RTL_CONSTASCII_USTRINGPARAM( 84 "com.sun.star.configuration.ConfigurationProvider")); 85 const ::rtl::OUString sPathToImpressConfigurationRoot( 86 RTL_CONSTASCII_USTRINGPARAM("/org.openoffice.Office.Impress/")); 87 const ::rtl::OUString sPathToNode( 88 RTL_CONSTASCII_USTRINGPARAM( 89 "MultiPaneGUI/SlideSorter/PreviewCache")); 90 91 try 92 { 93 do 94 { 95 // Obtain access to the configuration. 96 Reference<lang::XMultiServiceFactory> xProvider ( 97 ::comphelper::getProcessServiceFactory()->createInstance( 98 sConfigurationProviderServiceName), 99 UNO_QUERY); 100 if ( ! xProvider.is()) 101 break; 102 103 // Obtain access to Impress configuration. 104 Sequence<Any> aCreationArguments(3); 105 aCreationArguments[0] = makeAny(beans::PropertyValue( 106 ::rtl::OUString( 107 RTL_CONSTASCII_USTRINGPARAM("nodepath")), 108 0, 109 makeAny(sPathToImpressConfigurationRoot), 110 beans::PropertyState_DIRECT_VALUE)); 111 aCreationArguments[1] = makeAny(beans::PropertyValue( 112 ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("depth")), 113 0, 114 makeAny((sal_Int32)-1), 115 beans::PropertyState_DIRECT_VALUE)); 116 aCreationArguments[2] = makeAny(beans::PropertyValue( 117 ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("lazywrite")), 118 0, 119 makeAny(true), 120 beans::PropertyState_DIRECT_VALUE)); 121 ::rtl::OUString sAccessService (::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( 122 "com.sun.star.configuration.ConfigurationAccess"))); 123 Reference<XInterface> xRoot (xProvider->createInstanceWithArguments( 124 sAccessService, aCreationArguments)); 125 if ( ! xRoot.is()) 126 break; 127 Reference<container::XHierarchicalNameAccess> xHierarchy (xRoot, UNO_QUERY); 128 if ( ! xHierarchy.is()) 129 break; 130 131 // Get the node for the slide sorter preview cache. 132 mxCacheNode = Reference<container::XNameAccess>( 133 xHierarchy->getByHierarchicalName(sPathToNode), 134 UNO_QUERY); 135 } 136 while (false); 137 } 138 catch (RuntimeException aException) 139 { 140 (void)aException; 141 } 142 catch (Exception aException) 143 { 144 (void)aException; 145 } 146 } 147 148 149 150 151 Any CacheConfiguration::GetValue (const ::rtl::OUString& rName) 152 { 153 Any aResult; 154 155 if (mxCacheNode != NULL) 156 { 157 try 158 { 159 aResult = mxCacheNode->getByName(rName); 160 } 161 catch (Exception aException) 162 { 163 (void)aException; 164 } 165 } 166 167 return aResult; 168 } 169 170 171 172 173 IMPL_LINK(CacheConfiguration,TimerCallback, Timer*,EMPTYARG) 174 { 175 // Release out reference to the instance. 176 mpInstance.reset(); 177 return 0; 178 } 179 180 181 } } } // end of namespace ::sd::slidesorter::cache 182