odk/examples/DevelopersGuide/Database/DriverSkeleton/SServices.cxx

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  35
  36 #include <sal/types.h>
  37 #include "SDriver.hxx"
  38 #include <cppuhelper/factory.hxx>
  39 #include <osl/diagnose.h>
  40 #include <uno/lbnames.h>
  41 #include <com/sun/star/registry/XRegistryKey.hpp>
  42 #include <com/sun/star/lang/XSingleServiceFactory.hpp>
  43
  44 using namespace connectivity::skeleton;
  45 using ::rtl::OUString;
  46 using ::com::sun::star::uno::Reference;
  47 using ::com::sun::star::uno::Sequence;
  48 using ::com::sun::star::registry::XRegistryKey;
  49 using ::com::sun::star::lang::XSingleServiceFactory;
  50 using ::com::sun::star::lang::XMultiServiceFactory;
  51
  52 typedef Reference< XSingleServiceFactory > (SAL_CALL *createFactoryFunc)
  53         (
  54             const Reference< XMultiServiceFactory > & rServiceManager,
  55             const OUString & rComponentName,
  56             ::cppu::ComponentInstantiation pCreateFunction,
  57             const Sequence< OUString > & rServiceNames,
  58             rtl_ModuleCount*
  59         );
  60
  61
  62 // The required C-Api must be provided!
  63 // It contains of 3 special functions that have to be exported.
  64
  65
  66 void REGISTER_PROVIDER(
  67         const OUString& aServiceImplName,
  68         const Sequence< OUString>& Services,
  69         const Reference< ::com::sun::star::registry::XRegistryKey > & xKey)
  70 {
  71     OUString aMainKeyName("/");
  72     aMainKeyName += aServiceImplName;
  73     aMainKeyName += "/UNO/SERVICES";
  74
  75     Reference< ::com::sun::star::registry::XRegistryKey >  xNewKey( xKey->createKey(aMainKeyName) );
  76     OSL_ENSURE(xNewKey.is(), "SKELETON::component_writeInfo : could not create a registry key !");
  77
  78     for (sal_uInt32 i=0; i<Services.getLength(); ++i)
  79         xNewKey->createKey(Services[i]);
  80 }
  81
  82
  83 struct ProviderRequest
  84 {
  85     Reference< XSingleServiceFactory > xRet;
  86     Reference< XMultiServiceFactory > const xServiceManager;
  87     OUString const sImplementationName;
  88
  89     ProviderRequest(
  90         void* pServiceManager,
  91         char const* pImplementationName
  92     )
  93     : xServiceManager(reinterpret_cast<XMultiServiceFactory*>(pServiceManager))
  94     , sImplementationName(OUString::createFromAscii(pImplementationName))
  95     {
  96     }
  97
  98     inline
  99     sal_Bool CREATE_PROVIDER(
 100                 const OUString& Implname,
 101                 const Sequence< OUString > & Services,
 102                 ::cppu::ComponentInstantiation Factory,
 103                 createFactoryFunc creator
 104             )
 105     {
 106         if (!xRet.is() && (Implname == sImplementationName))
 107         try
 108         {
 109             xRet = creator( xServiceManager, sImplementationName,Factory, Services,0);
 110         }
 111         catch(...)
 112         {
 113         }
 114         return xRet.is();
 115     }
 116
 117     void* getProvider() const { return xRet.get(); }
 118 };
 119
 120
 121 extern "C" SAL_DLLPUBLIC_EXPORT void* SAL_CALL component_getFactory(
 122                     const char* pImplementationName,
 123                     void* pServiceManager,
 124                     void* pRegistryKey)
 125 {
 126     void* pRet = 0;
 127     if (pServiceManager)
 128     {
 129         ProviderRequest aReq(pServiceManager,pImplementationName);
 130
 131         aReq.CREATE_PROVIDER(
 132             SkeletonDriver::getImplementationName_Static(),
 133             SkeletonDriver::getSupportedServiceNames_Static(),
 134             SkeletonDriver_CreateInstance, ::cppu::createSingleFactory)
 135         ;
 136
 137         if(aReq.xRet.is())
 138             aReq.xRet->acquire();
 139
 140         pRet = aReq.getProvider();
 141     }
 142
 143     return pRet;
 144 }
 145
 146 extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL
 147 component_getImplementationEnvironment(
 148     char const ** ppEnvTypeName, uno_Environment **)
 149 {
 150     *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
 151 }
 152
 153 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */