unotools/source/processfactory/componentfactory.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_unotools.hxx"
  33
  34 #include <unotools/componentfactory.hxx>
  35 #include <comphelper/processfactory.hxx>
  36 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  37 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  38
  39 #ifndef _COM_SUN_STAR_REGISTRY_XREGISTRYKEY_HDL_
  40 #include <com/sun/star/registry/XRegistryKey.hpp>
  41 #endif
  42
  43 #include <cppuhelper/factory.hxx>
  44
  45 #include <uno/environment.h>
  46 #include <uno/mapping.hxx>
  47
  48 #include <rtl/ustring.hxx>
  49 #include <osl/module.h>
  50
  51
  52
  53
  54 using namespace ::com::sun::star;
  55 using namespace ::com::sun::star::uno;
  56 using namespace ::com::sun::star::lang;
  57 using namespace ::com::sun::star::registry;
  58 using namespace ::rtl;
  59
  60
  61 namespace utl
  62 {
  63
  64 Reference< XInterface > getComponentInstance(
  65             const OUString & rLibraryName,
  66             const OUString & rImplementationName
  67             )
  68 {
  69     Reference< XInterface > xI;
  70     Reference< XMultiServiceFactory > xMSF = ::comphelper::getProcessServiceFactory();
  71     if ( xMSF.is() )
  72         xI = xMSF->createInstance( rImplementationName );
  73     if( !xI.is() )
  74     {
  75         Reference< XSingleServiceFactory > xSSF =
  76             loadLibComponentFactory( rLibraryName, rImplementationName,
  77             Reference< XMultiServiceFactory >(), Reference< XRegistryKey >() );
  78         xI = xSSF->createInstance();
  79     }
  80     return xI;
  81 }
  82
  83
  84 Reference< XSingleServiceFactory > loadLibComponentFactory(
  85             const OUString & rLibName,
  86             const OUString & rImplName,
  87             const Reference< XMultiServiceFactory > & xSF,
  88             const Reference< XRegistryKey > & xKey
  89             )
  90 {
  91     Reference< XSingleServiceFactory > xRet;
  92
  93     oslModule lib = osl_loadModule( rLibName.pData, SAL_LOADMODULE_LAZY | SAL_LOADMODULE_GLOBAL );
  94     if (lib)
  95     {
  96         void * pSym;
  97
  98         // ========================= LATEST VERSION =========================
  99         OUString aGetEnvName( RTL_CONSTASCII_USTRINGPARAM(COMPONENT_GETENV) );
 100         if (pSym = osl_getSymbol( lib, aGetEnvName.pData ))
 101         {
 102             uno_Environment * pCurrentEnv = 0;
 103             uno_Environment * pEnv = 0;
 104             const sal_Char * pEnvTypeName = 0;
 105             (*((component_getImplementationEnvironmentFunc)pSym))( &pEnvTypeName, &pEnv );
 106
 107             sal_Bool bNeedsMapping =
 108                 (pEnv || 0 != rtl_str_compare( pEnvTypeName, CPPU_CURRENT_LANGUAGE_BINDING_NAME ));
 109
 110             OUString aEnvTypeName( OUString::createFromAscii( pEnvTypeName ) );
 111
 112             if (bNeedsMapping)
 113             {
 114                 if (! pEnv)
 115                     uno_getEnvironment( &pEnv, aEnvTypeName.pData, 0 );
 116                 if (pEnv)
 117                 {
 118                     OUString aCppEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) );
 119                     uno_getEnvironment( &pCurrentEnv, aCppEnvTypeName.pData, 0 );
 120                     if (pCurrentEnv)
 121                         bNeedsMapping = (pEnv != pCurrentEnv);
 122                 }
 123             }
 124
 125             OUString aGetFactoryName( RTL_CONSTASCII_USTRINGPARAM(COMPONENT_GETFACTORY) );
 126             if (pSym = osl_getSymbol( lib, aGetFactoryName.pData ))
 127             {
 128                 OString aImplName( OUStringToOString( rImplName, RTL_TEXTENCODING_ASCII_US ) );
 129
 130                 if (bNeedsMapping)
 131                 {
 132                     if (pEnv && pCurrentEnv)
 133                     {
 134                         Mapping aCurrent2Env( pCurrentEnv, pEnv );
 135                         Mapping aEnv2Current( pEnv, pCurrentEnv );
 136
 137                         if (aCurrent2Env.is() && aEnv2Current.is())
 138                         {
 139                             void * pSMgr = aCurrent2Env.mapInterface(
 140                                 xSF.get(), ::getCppuType( (const Reference< XMultiServiceFactory > *)0 ) );
 141                             void * pKey = aCurrent2Env.mapInterface(
 142                                 xKey.get(), ::getCppuType( (const Reference< XRegistryKey > *)0 ) );
 143
 144                             void * pSSF = (*((component_getFactoryFunc)pSym))(
 145                                 aImplName.getStr(), pSMgr, pKey );
 146
 147                             if (pKey)
 148                                 (*pEnv->pExtEnv->releaseInterface)( pEnv->pExtEnv, pKey );
 149                             if (pSMgr)
 150                                 (*pEnv->pExtEnv->releaseInterface)( pEnv->pExtEnv, pSMgr );
 151
 152                             if (pSSF)
 153                             {
 154                                 aEnv2Current.mapInterface(
 155                                     reinterpret_cast< void ** >( &xRet ),
 156                                     pSSF, ::getCppuType( (const Reference< XSingleServiceFactory > *)0 ) );
 157                                 (*pEnv->pExtEnv->releaseInterface)( pEnv->pExtEnv, pSSF );
 158                             }
 159                         }
 160                     }
 161                 }
 162                 else
 163                 {
 164                     XSingleServiceFactory * pRet = (XSingleServiceFactory *)
 165                         (*((component_getFactoryFunc)pSym))(
 166                             aImplName.getStr(), xSF.get(), xKey.get() );
 167                     if (pRet)
 168                     {
 169                         xRet = pRet;
 170                         pRet->release();
 171                     }
 172                 }
 173             }
 174
 175             if (pEnv)
 176                 (*pEnv->release)( pEnv );
 177             if (pCurrentEnv)
 178                 (*pCurrentEnv->release)( pCurrentEnv );
 179         }
 180
 181
 182         if (! xRet.is())
 183             osl_unloadModule( lib );
 184     }
 185
 186     return xRet;
 187 }
 188
 189 }       // namespace utl