connectivity/source/resource/sharedresources.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 #include "resource/sharedresources.hxx"
  21
  22 #include <comphelper/processfactory.hxx>
  23 #include <comphelper/officeresourcebundle.hxx>
  24
  25 #include <com/sun/star/uno/XComponentContext.hpp>
  26
  27 #include <tools/diagnose_ex.h>
  28 #include <osl/diagnose.h>
  29
  30
  31 namespace connectivity
  32 {
  33
  34
  35     using ::com::sun::star::uno::Reference;
  36     using ::com::sun::star::uno::XComponentContext;
  37     using ::com::sun::star::uno::Exception;
  38
  39
  40     //= SharedResources_Impl
  41
  42     class SharedResources_Impl
  43     {
  44     private:
  45         static  SharedResources_Impl*   s_pInstance;
  46         static  oslInterlockedCount     s_nClients;
  47
  48     private:
  49         ::std::auto_ptr< ::comphelper::OfficeResourceBundle >
  50                                         m_pResourceBundle;
  51
  52     public:
  53         static void     registerClient();
  54         static void     revokeClient();
  55
  56         static SharedResources_Impl&
  57                         getInstance();
  58
  59         OUString getResourceString( ResourceId _nId );
  60
  61     private:
  62         SharedResources_Impl();
  63
  64         static ::osl::Mutex& getMutex()
  65         {
  66             static ::osl::Mutex s_aMutex;
  67             return s_aMutex;
  68         }
  69     };
  70
  71
  72     SharedResources_Impl*   SharedResources_Impl::s_pInstance( NULL );
  73     oslInterlockedCount     SharedResources_Impl::s_nClients( 0 );
  74
  75
  76     SharedResources_Impl::SharedResources_Impl()
  77     {
  78         try
  79         {
  80             Reference< XComponentContext > xContext(
  81                 comphelper::getProcessComponentContext() );
  82             m_pResourceBundle.reset( new ::comphelper::OfficeResourceBundle( xContext, "cnr" ) );
  83         }
  84         catch( const Exception& )
  85         {
  86             DBG_UNHANDLED_EXCEPTION();
  87         }
  88     }
  89
  90
  91     OUString SharedResources_Impl::getResourceString( ResourceId _nId )
  92     {
  93         if ( m_pResourceBundle.get() == NULL )
  94             // this should never happen, but we gracefully ignore it. It has been reported
  95             // in the constructor in non-product builds.
  96             return OUString();
  97
  98         return m_pResourceBundle->loadString( _nId );
  99     }
 100
 101
 102     void SharedResources_Impl::registerClient()
 103     {
 104         osl_atomic_increment( &s_nClients );
 105     }
 106
 107
 108     void SharedResources_Impl::revokeClient()
 109     {
 110         ::osl::MutexGuard aGuard( getMutex() );
 111         if ( 0 == osl_atomic_decrement( &s_nClients ) )
 112         {
 113             delete s_pInstance;
 114             s_pInstance = NULL;
 115         }
 116     }
 117
 118
 119     SharedResources_Impl& SharedResources_Impl::getInstance()
 120     {
 121         ::osl::MutexGuard aGuard( getMutex() );
 122         OSL_ENSURE( s_nClients > 0, "SharedResources_Impl::getInstance: no active clients!" );
 123
 124         if ( !s_pInstance )
 125             s_pInstance = new SharedResources_Impl;
 126
 127         return *s_pInstance;
 128     }
 129
 130
 131     //= helpers
 132
 133     namespace
 134     {
 135         size_t lcl_substitute( OUString& _inout_rString,
 136             const sal_Char* _pAsciiPattern, const OUString& _rReplace )
 137         {
 138             size_t nOccurrences = 0;
 139
 140             OUString sPattern( OUString::createFromAscii( _pAsciiPattern ) );
 141             sal_Int32 nIndex = 0;
 142             while ( ( nIndex = _inout_rString.indexOf( sPattern ) ) > -1 )
 143             {
 144                 ++nOccurrences;
 145                 _inout_rString = _inout_rString.replaceAt( nIndex, sPattern.getLength(), _rReplace );
 146             }
 147
 148             return nOccurrences;
 149         }
 150     }
 151
 152
 153     //= SharedResources
 154
 155
 156     SharedResources::SharedResources()
 157     {
 158         SharedResources_Impl::registerClient();
 159     }
 160
 161
 162     SharedResources::~SharedResources()
 163     {
 164         SharedResources_Impl::revokeClient();
 165     }
 166
 167
 168     OUString SharedResources::getResourceString( ResourceId _nResId ) const
 169     {
 170         return SharedResources_Impl::getInstance().getResourceString( _nResId );
 171     }
 172
 173
 174     OUString SharedResources::getResourceStringWithSubstitution( ResourceId _nResId,
 175                 const sal_Char* _pAsciiPatternToReplace, const OUString& _rStringToSubstitute ) const
 176     {
 177         OUString sString( SharedResources_Impl::getInstance().getResourceString( _nResId ) );
 178         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace, _rStringToSubstitute ) );
 179         return sString;
 180     }
 181
 182
 183     OUString SharedResources::getResourceStringWithSubstitution( ResourceId _nResId,
 184                 const sal_Char* _pAsciiPatternToReplace1, const OUString& _rStringToSubstitute1,
 185                 const sal_Char* _pAsciiPatternToReplace2, const OUString& _rStringToSubstitute2 ) const
 186     {
 187         OUString sString( SharedResources_Impl::getInstance().getResourceString( _nResId ) );
 188         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace1, _rStringToSubstitute1 ) );
 189         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace2, _rStringToSubstitute2 ) );
 190         return sString;
 191     }
 192
 193
 194     OUString SharedResources::getResourceStringWithSubstitution( ResourceId _nResId,
 195                 const sal_Char* _pAsciiPatternToReplace1, const OUString& _rStringToSubstitute1,
 196                 const sal_Char* _pAsciiPatternToReplace2, const OUString& _rStringToSubstitute2,
 197                 const sal_Char* _pAsciiPatternToReplace3, const OUString& _rStringToSubstitute3 ) const
 198     {
 199         OUString sString( SharedResources_Impl::getInstance().getResourceString( _nResId ) );
 200         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace1, _rStringToSubstitute1 ) );
 201         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace2, _rStringToSubstitute2 ) );
 202         OSL_VERIFY( lcl_substitute( sString, _pAsciiPatternToReplace3, _rStringToSubstitute3 ) );
 203         return sString;
 204     }
 205
 206     OUString SharedResources::getResourceStringWithSubstitution( ResourceId _nResId,
 207                     const ::std::list< ::std::pair<const sal_Char* , OUString > > _aStringToSubstitutes) const
 208     {
 209         OUString sString( SharedResources_Impl::getInstance().getResourceString( _nResId ) );
 210         ::std::list< ::std::pair<const sal_Char* , OUString > >::const_iterator aIter = _aStringToSubstitutes.begin();
 211         ::std::list< ::std::pair<const sal_Char* , OUString > >::const_iterator aEnd  = _aStringToSubstitutes.end();
 212         for(;aIter != aEnd; ++aIter)
 213             OSL_VERIFY( lcl_substitute( sString, aIter->first, aIter->second ) );
 214
 215         return sString;
 216     }
 217
 218
 219 } // namespace connectivity
 220
 221
 222 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */