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