dbaccess/source/shared/registrationhelper.cxx

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   9  * $RCSfile: registrationhelper.cxx,v $
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  30
  31 // no include "precompiled_dbaccess.hxx" because this file is meant to
  32 // be included in other cxx files
  33
  34 #ifndef _REGISTRATIONHELPER_CXX_INCLUDED_INDIRECTLY_
  35 #error "don't build this file directly! use dbu_reghelper.cxx instead!"
  36 #endif
  37
  38 using namespace ::com::sun::star;
  39 using namespace ::comphelper;
  40 using namespace ::cppu;
  41
  42 uno::Sequence< ::rtl::OUString >*                                   OModuleRegistration::s_pImplementationNames = NULL;
  43 uno::Sequence< uno::Sequence< ::rtl::OUString > >*      OModuleRegistration::s_pSupportedServices = NULL;
  44 uno::Sequence< sal_Int64 >*                         OModuleRegistration::s_pCreationFunctionPointers = NULL;
  45 uno::Sequence< sal_Int64 >*                                 OModuleRegistration::s_pFactoryFunctionPointers = NULL;
  46
  47 //--------------------------------------------------------------------------
  48 void OModuleRegistration::registerComponent(
  49     const ::rtl::OUString& _rImplementationName,
  50     const uno::Sequence< ::rtl::OUString >& _rServiceNames,
  51     ComponentInstantiation _pCreateFunction,
  52     FactoryInstantiation _pFactoryFunction)
  53 {
  54     if (!s_pImplementationNames)
  55     {
  56         OSL_ENSURE(!s_pSupportedServices && !s_pCreationFunctionPointers && !s_pFactoryFunctionPointers,
  57             "OModuleRegistration::registerComponent : inconsistent state (the pointers (1)) !");
  58         s_pImplementationNames = new uno::Sequence< ::rtl::OUString >;
  59         s_pSupportedServices = new uno::Sequence< uno::Sequence< ::rtl::OUString > >;
  60         s_pCreationFunctionPointers = new uno::Sequence< sal_Int64 >;
  61         s_pFactoryFunctionPointers = new uno::Sequence< sal_Int64 >;
  62     }
  63     OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers,
  64         "OModuleRegistration::registerComponent : inconsistent state (the pointers (2)) !");
  65
  66     OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength())
  67                 &&      (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength())
  68                 &&      (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()),
  69         "OModuleRegistration::registerComponent : inconsistent state !");
  70
  71     sal_Int32 nOldLen = s_pImplementationNames->getLength();
  72     s_pImplementationNames->realloc(nOldLen + 1);
  73     s_pSupportedServices->realloc(nOldLen + 1);
  74     s_pCreationFunctionPointers->realloc(nOldLen + 1);
  75     s_pFactoryFunctionPointers->realloc(nOldLen + 1);
  76
  77     s_pImplementationNames->getArray()[nOldLen] = _rImplementationName;
  78     s_pSupportedServices->getArray()[nOldLen] = _rServiceNames;
  79     s_pCreationFunctionPointers->getArray()[nOldLen] = reinterpret_cast<sal_Int64>(_pCreateFunction);
  80     s_pFactoryFunctionPointers->getArray()[nOldLen] = reinterpret_cast<sal_Int64>(_pFactoryFunction);
  81 }
  82
  83 //--------------------------------------------------------------------------
  84 void OModuleRegistration::revokeComponent(const ::rtl::OUString& _rImplementationName)
  85 {
  86     if (!s_pImplementationNames)
  87     {
  88         OSL_ENSURE(sal_False, "OModuleRegistration::revokeComponent : have no class infos ! Are you sure called this method at the right time ?");
  89         return;
  90     }
  91     OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers,
  92         "OModuleRegistration::revokeComponent : inconsistent state (the pointers) !");
  93     OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength())
  94                 &&      (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength())
  95                 &&      (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()),
  96         "OModuleRegistration::revokeComponent : inconsistent state !");
  97
  98     sal_Int32 nLen = s_pImplementationNames->getLength();
  99     const ::rtl::OUString* pImplNames = s_pImplementationNames->getConstArray();
 100     for (sal_Int32 i=0; i<nLen; ++i, ++pImplNames)
 101     {
 102         if (pImplNames->equals(_rImplementationName))
 103         {
 104             removeElementAt(*s_pImplementationNames, i);
 105             removeElementAt(*s_pSupportedServices, i);
 106             removeElementAt(*s_pCreationFunctionPointers, i);
 107             removeElementAt(*s_pFactoryFunctionPointers, i);
 108             break;
 109         }
 110     }
 111
 112     if (s_pImplementationNames->getLength() == 0)
 113     {
 114         delete s_pImplementationNames; s_pImplementationNames = NULL;
 115         delete s_pSupportedServices; s_pSupportedServices = NULL;
 116         delete s_pCreationFunctionPointers; s_pCreationFunctionPointers = NULL;
 117         delete s_pFactoryFunctionPointers; s_pFactoryFunctionPointers = NULL;
 118     }
 119 }
 120
 121 //--------------------------------------------------------------------------
 122 sal_Bool OModuleRegistration::writeComponentInfos(
 123         const uno::Reference< lang::XMultiServiceFactory >& /*_rxServiceManager*/,
 124         const uno::Reference< registry::XRegistryKey >& _rxRootKey)
 125 {
 126     OSL_ENSURE(_rxRootKey.is(), "OModuleRegistration::writeComponentInfos : invalid argument !");
 127
 128     if (!s_pImplementationNames)
 129     {
 130         OSL_ENSURE(sal_False, "OModuleRegistration::writeComponentInfos : have no class infos ! Are you sure called this method at the right time ?");
 131         return sal_True;
 132     }
 133     OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers,
 134         "OModuleRegistration::writeComponentInfos : inconsistent state (the pointers) !");
 135     OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength())
 136                 &&      (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength())
 137                 &&      (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()),
 138         "OModuleRegistration::writeComponentInfos : inconsistent state !");
 139
 140     sal_Int32 nLen = s_pImplementationNames->getLength();
 141     const ::rtl::OUString* pImplName = s_pImplementationNames->getConstArray();
 142     const uno::Sequence< ::rtl::OUString >* pServices = s_pSupportedServices->getConstArray();
 143
 144     ::rtl::OUString sRootKey("/", 1, RTL_TEXTENCODING_ASCII_US);
 145     for (sal_Int32 i=0; i<nLen; ++i, ++pImplName, ++pServices)
 146     {
 147         ::rtl::OUString aMainKeyName(sRootKey);
 148         aMainKeyName += *pImplName;
 149         aMainKeyName += ::rtl::OUString::createFromAscii("/UNO/SERVICES");
 150
 151         try
 152         {
 153             uno::Reference< registry::XRegistryKey >  xNewKey( _rxRootKey->createKey(aMainKeyName) );
 154
 155             const ::rtl::OUString* pService = pServices->getConstArray();
 156             for (sal_Int32 j=0; j<pServices->getLength(); ++j, ++pService)
 157                 xNewKey->createKey(*pService);
 158         }
 159         catch(uno::Exception const&)
 160         {
 161             OSL_ENSURE(sal_False, "OModuleRegistration::writeComponentInfos : something went wrong while creating the keys !");
 162             return sal_False;
 163         }
 164     }
 165
 166     return sal_True;
 167 }
 168
 169 //--------------------------------------------------------------------------
 170 uno::Reference< uno::XInterface > OModuleRegistration::getComponentFactory(
 171     const ::rtl::OUString& _rImplementationName,
 172     const uno::Reference< lang::XMultiServiceFactory >& _rxServiceManager)
 173 {
 174     OSL_ENSURE(_rxServiceManager.is(), "OModuleRegistration::getComponentFactory : invalid argument (service manager) !");
 175     OSL_ENSURE(_rImplementationName.getLength(), "OModuleRegistration::getComponentFactory : invalid argument (implementation name) !");
 176
 177     if (!s_pImplementationNames)
 178     {
 179         OSL_ENSURE(sal_False, "OModuleRegistration::getComponentFactory : have no class infos ! Are you sure called this method at the right time ?");
 180         return NULL;
 181     }
 182     OSL_ENSURE(s_pImplementationNames && s_pSupportedServices && s_pCreationFunctionPointers && s_pFactoryFunctionPointers,
 183         "OModuleRegistration::getComponentFactory : inconsistent state (the pointers) !");
 184     OSL_ENSURE( (s_pImplementationNames->getLength() == s_pSupportedServices->getLength())
 185                 &&      (s_pImplementationNames->getLength() == s_pCreationFunctionPointers->getLength())
 186                 &&      (s_pImplementationNames->getLength() == s_pFactoryFunctionPointers->getLength()),
 187         "OModuleRegistration::getComponentFactory : inconsistent state !");
 188
 189
 190     uno::Reference< uno::XInterface > xReturn;
 191
 192
 193     sal_Int32 nLen = s_pImplementationNames->getLength();
 194     const ::rtl::OUString* pImplName = s_pImplementationNames->getConstArray();
 195     const uno::Sequence< ::rtl::OUString >* pServices = s_pSupportedServices->getConstArray();
 196     const sal_Int64* pComponentFunction = s_pCreationFunctionPointers->getConstArray();
 197     const sal_Int64* pFactoryFunction = s_pFactoryFunctionPointers->getConstArray();
 198
 199     for (sal_Int32 i=0; i<nLen; ++i, ++pImplName, ++pServices, ++pComponentFunction, ++pFactoryFunction)
 200     {
 201         if (pImplName->equals(_rImplementationName))
 202         {
 203             const FactoryInstantiation FactoryInstantiationFunction = reinterpret_cast<const FactoryInstantiation>(*pFactoryFunction);
 204             const ComponentInstantiation ComponentInstantiationFunction = reinterpret_cast<const ComponentInstantiation>(*pComponentFunction);
 205
 206             xReturn = FactoryInstantiationFunction( _rxServiceManager, *pImplName, ComponentInstantiationFunction, *pServices, NULL);
 207             if (xReturn.is())
 208             {
 209                 xReturn->acquire();
 210                 return xReturn.get();
 211             }
 212         }
 213     }
 214
 215     return NULL;
 216 }
 217
 218