xref: /trunk/main/mysqlc/source/mysqlc_services.cxx (revision 079eb5772d0a9e49bbf5c2cd738fc5b5d43e5181)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/

#include "mysqlc_driver.hxx"

#include <cppuhelper/factory.hxx>
#include <osl/diagnose.h>
#include <rtl/ustrbuf.hxx>

using namespace connectivity::mysqlc;
using ::rtl::OUString;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::registry::XRegistryKey;
using ::com::sun::star::lang::XSingleServiceFactory;
using ::com::sun::star::lang::XMultiServiceFactory;

typedef Reference< XSingleServiceFactory > (SAL_CALL *createFactoryFunc)
        (
            const Reference< XMultiServiceFactory > & rServiceManager,
            const OUString & rComponentName,
            ::cppu::ComponentInstantiation pCreateFunction,
            const Sequence< OUString > & rServiceNames,
            rtl_ModuleCount* _pTemp
        );

//***************************************************************************************
//
// Die vorgeschriebene C-API muss erfuellt werden!
// Sie besteht aus drei Funktionen, die von dem Modul exportiert werden muessen.
//

//---------------------------------------------------------------------------------------
void REGISTER_PROVIDER(
        const OUString& aServiceImplName,
        const Sequence< OUString>& Services,
        const Reference< XRegistryKey > & xKey)
{
    ::rtl::OUStringBuffer aMainKeyName;
    aMainKeyName.append( sal_Unicode( '/' ) );
    aMainKeyName.append( aServiceImplName );
    aMainKeyName.appendAscii( "/UNO/SERVICES" );

    Reference< XRegistryKey > xNewKey( xKey->createKey( aMainKeyName.makeStringAndClear() ) );
    OSL_ENSURE(xNewKey.is(), "SKELETON::component_writeInfo : could not create a registry key !");

    for (sal_Int32 i = 0; i < Services.getLength(); ++i) {
        xNewKey->createKey(Services[i]);
    }
}


//---------------------------------------------------------------------------------------
struct ProviderRequest
{
    Reference< XSingleServiceFactory > xRet;
    Reference< XMultiServiceFactory > const xServiceManager;
    OUString const sImplementationName;

    ProviderRequest(
        void* pServiceManager,
        sal_Char const* pImplementationName
    ) : xServiceManager(reinterpret_cast<XMultiServiceFactory*>(pServiceManager))
      , sImplementationName(OUString::createFromAscii(pImplementationName))
    {
    }

    /* {{{ CREATE_PROVIDER -I- */
    inline sal_Bool CREATE_PROVIDER(
                const OUString& Implname,
                const Sequence< OUString > & Services,
                ::cppu::ComponentInstantiation Factory,
                createFactoryFunc creator
            )
    {
        if (!xRet.is() && (Implname == sImplementationName)) {
            try {
                xRet = creator( xServiceManager, sImplementationName,Factory, Services,0);
            } catch (...) {
            }
        }
        return xRet.is();
    }

    void* getProvider() const { return xRet.get(); }
};
/* }}} */


/* {{{ component_getImplementationEnvironment -I- */
extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment(
                const sal_Char  **ppEnvTypeName,
                uno_Environment ** /* ppEnv */
            )
{
    *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}
/* }}} */


/* {{{ component_writeInfo -I- */
extern "C" SAL_DLLPUBLIC_EXPORT sal_Bool SAL_CALL component_writeInfo(void * /* pServiceManager */, void * pRegistryKey)
{
    if (pRegistryKey) {
        try {
            Reference< XRegistryKey > xKey(reinterpret_cast< XRegistryKey*>(pRegistryKey));

            REGISTER_PROVIDER(
                MysqlCDriver::getImplementationName_Static(),
                MysqlCDriver::getSupportedServiceNames_Static(), xKey);

            return sal_True;
        } catch (::com::sun::star::registry::InvalidRegistryException& ) {
            OSL_ENSURE(sal_False, "SKELETON::component_writeInfo : could not create a registry key ! ## InvalidRegistryException !");
        }
    }
    return sal_False;
}
/* }}} */


/* {{{ component_getFactory -I- */
extern "C" SAL_DLLPUBLIC_EXPORT void* SAL_CALL component_getFactory(
                    const sal_Char * pImplementationName,
                    void * pServiceManager,
                    void * /* pRegistryKey */)
{
    void* pRet = 0;
    if (pServiceManager) {
        ProviderRequest aReq(pServiceManager,pImplementationName);

        aReq.CREATE_PROVIDER(
            MysqlCDriver::getImplementationName_Static(),
            MysqlCDriver::getSupportedServiceNames_Static(),
            MysqlCDriver_CreateInstance, ::cppu::createSingleFactory)
        ;

        if(aReq.xRet.is()) {
            aReq.xRet->acquire();
        }

        pRet = aReq.getProvider();
    }

    return pRet;
};
/* }}} */


/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */