ucb/source/ucp/hierarchy/hierarchyprovider.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 /**************************************************************************
  22                                 TODO
  23  **************************************************************************
  24
  25  - XInitialization::initialize does not work any longer!
  26
  27  *************************************************************************/
  28 #include <osl/diagnose.h>
  29 #include <com/sun/star/beans/PropertyValue.hpp>
  30 #include <com/sun/star/container/XHierarchicalNameAccess.hpp>
  31 #include <com/sun/star/util/XOfficeInstallationDirectories.hpp>
  32 #include <comphelper/processfactory.hxx>
  33 #include <ucbhelper/contentidentifier.hxx>
  34 #include "hierarchyprovider.hxx"
  35 #include "hierarchycontent.hxx"
  36 #include "hierarchyuri.hxx"
  37
  38 #include "../inc/urihelper.hxx"
  39
  40 using namespace com::sun::star;
  41 using namespace hierarchy_ucp;
  42
  43 //=========================================================================
  44 //=========================================================================
  45 //
  46 // HierarchyContentProvider Implementation.
  47 //
  48 //=========================================================================
  49 //=========================================================================
  50
  51 HierarchyContentProvider::HierarchyContentProvider(
  52             const uno::Reference< uno::XComponentContext >& rxContext )
  53 : ::ucbhelper::ContentProviderImplHelper( rxContext )
  54 {
  55 }
  56
  57 //=========================================================================
  58 // virtual
  59 HierarchyContentProvider::~HierarchyContentProvider()
  60 {
  61 }
  62
  63 //=========================================================================
  64 //
  65 // XInterface methods.
  66 //
  67 //=========================================================================
  68
  69 XINTERFACE_IMPL_4( HierarchyContentProvider,
  70                    lang::XTypeProvider,
  71                    lang::XServiceInfo,
  72                    ucb::XContentProvider,
  73                    lang::XInitialization );
  74
  75 //=========================================================================
  76 //
  77 // XTypeProvider methods.
  78 //
  79 //=========================================================================
  80
  81 XTYPEPROVIDER_IMPL_4( HierarchyContentProvider,
  82                       lang::XTypeProvider,
  83                       lang::XServiceInfo,
  84                       ucb::XContentProvider,
  85                       lang::XInitialization );
  86
  87 //=========================================================================
  88 //
  89 // XServiceInfo methods.
  90 //
  91 //=========================================================================
  92
  93 XSERVICEINFO_IMPL_1_CTX( HierarchyContentProvider,
  94                      rtl::OUString( "com.sun.star.comp.ucb.HierarchyContentProvider" ),
  95                      rtl::OUString( HIERARCHY_CONTENT_PROVIDER_SERVICE_NAME ) );
  96
  97 //=========================================================================
  98 //
  99 // Service factory implementation.
 100 //
 101 //=========================================================================
 102
 103 ONE_INSTANCE_SERVICE_FACTORY_IMPL( HierarchyContentProvider );
 104
 105 //=========================================================================
 106 //
 107 // XContentProvider methods.
 108 //
 109 //=========================================================================
 110
 111 // virtual
 112 uno::Reference< ucb::XContent > SAL_CALL
 113 HierarchyContentProvider::queryContent(
 114         const uno::Reference< ucb::XContentIdentifier >& Identifier )
 115     throw( ucb::IllegalIdentifierException, uno::RuntimeException )
 116 {
 117     HierarchyUri aUri( Identifier->getContentIdentifier() );
 118     if ( !aUri.isValid() )
 119         throw ucb::IllegalIdentifierException();
 120
 121     // Encode URL and create new Id. This may "correct" user-typed-in URL's.
 122     uno::Reference< ucb::XContentIdentifier > xCanonicId
 123         = new ::ucbhelper::ContentIdentifier( ::ucb_impl::urihelper::encodeURI( aUri.getUri() ) );
 124     osl::MutexGuard aGuard( m_aMutex );
 125
 126     // Check, if a content with given id already exists...
 127     uno::Reference< ucb::XContent > xContent
 128         = queryExistingContent( xCanonicId ).get();
 129     if ( xContent.is() )
 130         return xContent;
 131
 132     // Create a new content.
 133     xContent = HierarchyContent::create( m_xContext, this, xCanonicId );
 134     registerNewContent( xContent );
 135
 136     if ( xContent.is() && !xContent->getIdentifier().is() )
 137         throw ucb::IllegalIdentifierException();
 138
 139     return xContent;
 140 }
 141
 142 //=========================================================================
 143 //
 144 // XInitialization methods.
 145 //
 146 //=========================================================================
 147
 148 // virtual
 149 void SAL_CALL HierarchyContentProvider::initialize(
 150                                 const uno::Sequence< uno::Any >& aArguments )
 151     throw( uno::Exception, uno::RuntimeException )
 152 {
 153     if ( aArguments.getLength() > 0 )
 154         OSL_FAIL( "HierarchyContentProvider::initialize : not supported!" );
 155 }
 156
 157 //=========================================================================
 158 //
 159 //  Non-interface methods.
 160 //
 161 //=========================================================================
 162
 163 uno::Reference< lang::XMultiServiceFactory >
 164 HierarchyContentProvider::getConfigProvider(
 165                                 const rtl::OUString & rServiceSpecifier )
 166 {
 167     osl::MutexGuard aGuard( m_aMutex );
 168     ConfigProviderMap::iterator it = m_aConfigProviderMap.find(
 169                                                     rServiceSpecifier );
 170     if ( it == m_aConfigProviderMap.end() )
 171     {
 172         try
 173         {
 174             ConfigProviderMapEntry aEntry;
 175             aEntry.xConfigProvider
 176                 = uno::Reference< lang::XMultiServiceFactory >(
 177                                 m_xContext->getServiceManager()->createInstanceWithContext(rServiceSpecifier, m_xContext),
 178                                 uno::UNO_QUERY );
 179
 180             if ( aEntry.xConfigProvider.is() )
 181             {
 182                 m_aConfigProviderMap[ rServiceSpecifier ] = aEntry;
 183                 return aEntry.xConfigProvider;
 184             }
 185         }
 186         catch ( uno::Exception const & )
 187         {
 188 //            OSL_FAIL( //                        "HierarchyContentProvider::getConfigProvider - "
 189 //                        "caught exception!" );
 190         }
 191
 192         OSL_FAIL( "HierarchyContentProvider::getConfigProvider - "
 193                     "No config provider!" );
 194
 195         return uno::Reference< lang::XMultiServiceFactory >();
 196     }
 197
 198     return (*it).second.xConfigProvider;
 199 }
 200
 201 //=========================================================================
 202 uno::Reference< container::XHierarchicalNameAccess >
 203 HierarchyContentProvider::getRootConfigReadNameAccess(
 204                                 const rtl::OUString & rServiceSpecifier )
 205 {
 206     osl::MutexGuard aGuard( m_aMutex );
 207     ConfigProviderMap::iterator it = m_aConfigProviderMap.find(
 208                                                     rServiceSpecifier );
 209     if ( it != m_aConfigProviderMap.end() )
 210     {
 211         if ( !( (*it).second.xRootReadAccess.is() ) )
 212         {
 213             if ( (*it).second.bTriedToGetRootReadAccess ) // #82494#
 214             {
 215                 OSL_FAIL( "HierarchyContentProvider::getRootConfigReadNameAccess - "
 216                     "Unable to read any config data! -> #82494#" );
 217                 return uno::Reference< container::XHierarchicalNameAccess >();
 218             }
 219
 220             try
 221             {
 222                 uno::Reference< lang::XMultiServiceFactory > xConfigProv
 223                     = getConfigProvider( rServiceSpecifier );
 224
 225                 if ( xConfigProv.is() )
 226                 {
 227                     uno::Sequence< uno::Any > aArguments( 1 );
 228                     beans::PropertyValue      aProperty;
 229                     aProperty.Name = rtl::OUString( "nodepath"  );
 230                     aProperty.Value <<= rtl::OUString(); // root path
 231                     aArguments[ 0 ] <<= aProperty;
 232
 233                     (*it).second.bTriedToGetRootReadAccess = true;
 234
 235                     (*it).second.xRootReadAccess
 236                         = uno::Reference< container::XHierarchicalNameAccess >(
 237                             xConfigProv->createInstanceWithArguments(
 238                                 rtl::OUString( "com.sun.star.ucb.HierarchyDataReadAccess"  ),
 239                                 aArguments ),
 240                             uno::UNO_QUERY );
 241                 }
 242             }
 243             catch ( uno::RuntimeException const & )
 244             {
 245                 throw;
 246             }
 247             catch ( uno::Exception const & )
 248             {
 249                 // createInstance, createInstanceWithArguments
 250
 251                 OSL_FAIL( "HierarchyContentProvider::getRootConfigReadNameAccess - "
 252                     "caught Exception!" );
 253             }
 254         }
 255     }
 256
 257     return (*it).second.xRootReadAccess;
 258 }
 259
 260 //=========================================================================
 261 uno::Reference< util::XOfficeInstallationDirectories >
 262 HierarchyContentProvider::getOfficeInstallationDirectories()
 263 {
 264     if ( !m_xOfficeInstDirs.is() )
 265     {
 266         osl::MutexGuard aGuard( m_aMutex );
 267         if ( !m_xOfficeInstDirs.is() )
 268         {
 269             OSL_ENSURE( m_xContext.is(), "No service manager!" );
 270
 271             m_xContext->getValueByName(
 272                 rtl::OUString( "/singletons/com.sun.star.util.theOfficeInstallationDirectories"  ) )
 273                 >>= m_xOfficeInstDirs;
 274
 275 // Be silent. singleton only available in an Office environment.
 276 //          OSL_ENSURE( m_xOfficeInstDirs.is(),
 277 //                      "Unable to obtain office directories singleton!" );
 278         }
 279     }
 280     return m_xOfficeInstDirs;
 281 }
 282
 283 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */