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/ucb/IllegalIdentifierException.hpp>
  32 #include <com/sun/star/util/theOfficeInstallationDirectories.hpp>
  33 #include <cppuhelper/queryinterface.hxx>
  34 #include <cppuhelper/weak.hxx>
  35 #include <ucbhelper/contentidentifier.hxx>
  36 #include <ucbhelper/macros.hxx>
  37 #include "hierarchyprovider.hxx"
  38 #include "hierarchycontent.hxx"
  39 #include "hierarchyuri.hxx"
  40
  41 #include "../inc/urihelper.hxx"
  42
  43 using namespace com::sun::star;
  44 using namespace hierarchy_ucp;
  45
  46
  47 // HierarchyContentProvider Implementation.
  48
  49
  50 HierarchyContentProvider::HierarchyContentProvider(
  51             const uno::Reference< uno::XComponentContext >& rxContext )
  52 : ::ucbhelper::ContentProviderImplHelper( rxContext )
  53 {
  54 }
  55
  56
  57 // virtual
  58 HierarchyContentProvider::~HierarchyContentProvider()
  59 {
  60 }
  61
  62
  63 // XInterface methods.
  64
  65 void SAL_CALL HierarchyContentProvider::acquire()
  66     noexcept
  67 {
  68     OWeakObject::acquire();
  69 }
  70
  71 void SAL_CALL HierarchyContentProvider::release()
  72     noexcept
  73 {
  74     OWeakObject::release();
  75 }
  76
  77 css::uno::Any SAL_CALL HierarchyContentProvider::queryInterface( const css::uno::Type & rType )
  78 {
  79     css::uno::Any aRet = cppu::queryInterface( rType,
  80                                                static_cast< lang::XTypeProvider* >(this),
  81                                                static_cast< lang::XServiceInfo* >(this),
  82                                                static_cast< ucb::XContentProvider* >(this),
  83                                                static_cast< lang::XInitialization* >(this)
  84                                                );
  85     return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
  86 }
  87
  88 // XTypeProvider methods.
  89
  90
  91 XTYPEPROVIDER_IMPL_4( HierarchyContentProvider,
  92                       lang::XTypeProvider,
  93                       lang::XServiceInfo,
  94                       ucb::XContentProvider,
  95                       lang::XInitialization );
  96
  97
  98 // XServiceInfo methods.
  99
 100 OUString SAL_CALL HierarchyContentProvider::getImplementationName()                       \
 101 {
 102     return "com.sun.star.comp.ucb.HierarchyContentProvider";
 103 }
 104 sal_Bool SAL_CALL HierarchyContentProvider::supportsService( const OUString& ServiceName )
 105 {
 106     return cppu::supportsService( this, ServiceName );
 107 }
 108 css::uno::Sequence< OUString > HierarchyContentProvider::getSupportedServiceNames()
 109 {
 110     return { "com.sun.star.ucb.HierarchyContentProvider" };
 111 }
 112
 113 // Service factory implementation.
 114
 115 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 116 ucb_HierarchyContentProvider_get_implementation(
 117     css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
 118 {
 119     return cppu::acquire(new HierarchyContentProvider(context));
 120 }
 121
 122 // XContentProvider methods.
 123
 124
 125 // virtual
 126 uno::Reference< ucb::XContent > SAL_CALL
 127 HierarchyContentProvider::queryContent(
 128         const uno::Reference< ucb::XContentIdentifier >& Identifier )
 129 {
 130     HierarchyUri aUri( Identifier->getContentIdentifier() );
 131     if ( !aUri.isValid() )
 132         throw ucb::IllegalIdentifierException();
 133
 134     // Encode URL and create new Id. This may "correct" user-typed-in URL's.
 135     uno::Reference< ucb::XContentIdentifier > xCanonicId
 136         = new ::ucbhelper::ContentIdentifier( ::ucb_impl::urihelper::encodeURI( aUri.getUri() ) );
 137     osl::MutexGuard aGuard( m_aMutex );
 138
 139     // Check, if a content with given id already exists...
 140     uno::Reference< ucb::XContent > xContent
 141         = queryExistingContent( xCanonicId );
 142     if ( xContent.is() )
 143         return xContent;
 144
 145     // Create a new content.
 146     xContent = HierarchyContent::create( m_xContext, this, xCanonicId );
 147     registerNewContent( xContent );
 148
 149     if ( xContent.is() && !xContent->getIdentifier().is() )
 150         throw ucb::IllegalIdentifierException();
 151
 152     return xContent;
 153 }
 154
 155
 156 // XInitialization methods.
 157
 158
 159 // virtual
 160 void SAL_CALL HierarchyContentProvider::initialize(
 161                                 const uno::Sequence< uno::Any >& aArguments )
 162 {
 163     if ( aArguments.hasElements() )
 164         OSL_FAIL( "HierarchyContentProvider::initialize : not supported!" );
 165 }
 166
 167
 168 //  Non-interface methods.
 169
 170
 171 uno::Reference< lang::XMultiServiceFactory >
 172 HierarchyContentProvider::getConfigProvider(
 173                                 const OUString & rServiceSpecifier )
 174 {
 175     osl::MutexGuard aGuard( m_aMutex );
 176     ConfigProviderMap::iterator it = m_aConfigProviderMap.find(
 177                                                     rServiceSpecifier );
 178     if ( it == m_aConfigProviderMap.end() )
 179     {
 180         try
 181         {
 182             ConfigProviderMapEntry aEntry;
 183             aEntry.xConfigProvider.set(
 184                                 m_xContext->getServiceManager()->createInstanceWithContext(rServiceSpecifier, m_xContext),
 185                                 uno::UNO_QUERY );
 186
 187             if ( aEntry.xConfigProvider.is() )
 188             {
 189                 m_aConfigProviderMap[ rServiceSpecifier ] = aEntry;
 190                 return aEntry.xConfigProvider;
 191             }
 192         }
 193         catch ( uno::Exception const & )
 194         {
 195 //            OSL_FAIL( //                        "HierarchyContentProvider::getConfigProvider - "
 196 //                        "caught exception!" );
 197         }
 198
 199         OSL_FAIL( "HierarchyContentProvider::getConfigProvider - "
 200                     "No config provider!" );
 201
 202         return uno::Reference< lang::XMultiServiceFactory >();
 203     }
 204
 205     return (*it).second.xConfigProvider;
 206 }
 207
 208 uno::Reference< container::XHierarchicalNameAccess >
 209 HierarchyContentProvider::getRootConfigReadNameAccess(
 210                                 const OUString & rServiceSpecifier )
 211 {
 212     osl::MutexGuard aGuard( m_aMutex );
 213     ConfigProviderMap::iterator it = m_aConfigProviderMap.find(
 214                                                     rServiceSpecifier );
 215     if (it == m_aConfigProviderMap.end())
 216         return uno::Reference< container::XHierarchicalNameAccess >();
 217
 218     if ( !( (*it).second.xRootReadAccess.is() ) )
 219     {
 220         if ( (*it).second.bTriedToGetRootReadAccess )
 221         {
 222             OSL_FAIL( "HierarchyContentProvider::getRootConfigReadNameAccess - "
 223                 "Unable to read any config data! -> #82494#" );
 224             return uno::Reference< container::XHierarchicalNameAccess >();
 225         }
 226
 227         try
 228         {
 229             uno::Reference< lang::XMultiServiceFactory > xConfigProv
 230                 = getConfigProvider( rServiceSpecifier );
 231
 232             if ( xConfigProv.is() )
 233             {
 234                 uno::Sequence< uno::Any > aArguments( 1 );
 235                 beans::PropertyValue      aProperty;
 236                 aProperty.Name = "nodepath" ;
 237                 aProperty.Value <<= OUString(); // root path
 238                 aArguments[ 0 ] <<= aProperty;
 239
 240                 (*it).second.bTriedToGetRootReadAccess = true;
 241
 242                 (*it).second.xRootReadAccess.set(
 243                         xConfigProv->createInstanceWithArguments(
 244                             "com.sun.star.ucb.HierarchyDataReadAccess",
 245                             aArguments ),
 246                         uno::UNO_QUERY );
 247             }
 248         }
 249         catch ( uno::RuntimeException const & )
 250         {
 251             throw;
 252         }
 253         catch ( uno::Exception const & )
 254         {
 255             // createInstance, createInstanceWithArguments
 256
 257             OSL_FAIL( "HierarchyContentProvider::getRootConfigReadNameAccess - "
 258                 "caught Exception!" );
 259         }
 260     }
 261
 262     return (*it).second.xRootReadAccess;
 263 }
 264
 265 uno::Reference< util::XOfficeInstallationDirectories >
 266 HierarchyContentProvider::getOfficeInstallationDirectories()
 267 {
 268     if ( !m_xOfficeInstDirs.is() )
 269     {
 270         osl::MutexGuard aGuard( m_aMutex );
 271         if ( !m_xOfficeInstDirs.is() )
 272         {
 273             OSL_ENSURE( m_xContext.is(), "No service manager!" );
 274
 275             m_xOfficeInstDirs = util::theOfficeInstallationDirectories::get(m_xContext);
 276         }
 277     }
 278     return m_xOfficeInstDirs;
 279 }
 280
 281 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */