Line data    Source code

       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 "java/sql/Driver.hxx"
      21             : #include <cppuhelper/factory.hxx>
      22             : 
      23             : using namespace connectivity;
      24             : using ::rtl::OUString;
      25             : using ::com::sun::star::uno::Reference;
      26             : using ::com::sun::star::uno::Sequence;
      27             : using ::com::sun::star::lang::XSingleServiceFactory;
      28             : using ::com::sun::star::lang::XMultiServiceFactory;
      29             : 
      30             : typedef Reference< XSingleServiceFactory > (SAL_CALL *createFactoryFunc)
      31             :         (
      32             :             const Reference< XMultiServiceFactory > & rServiceManager,
      33             :             const OUString & rComponentName,
      34             :             ::cppu::ComponentInstantiation pCreateFunction,
      35             :             const Sequence< OUString > & rServiceNames,
      36             :             rtl_ModuleCount* _pModCount
      37             :         );
      38             : 
      39             : //---------------------------------------------------------------------------------------
      40           0 : struct ProviderRequest
      41             : {
      42             :     Reference< XSingleServiceFactory > xRet;
      43             :     Reference< XMultiServiceFactory > const xServiceManager;
      44             :     OUString const sImplementationName;
      45             : 
      46           0 :     ProviderRequest(
      47             :         void* pServiceManager,
      48             :         sal_Char const* pImplementationName
      49             :     )
      50             :     : xServiceManager(reinterpret_cast<XMultiServiceFactory*>(pServiceManager))
      51           0 :     , sImplementationName(OUString::createFromAscii(pImplementationName))
      52             :     {
      53           0 :     }
      54             : 
      55             :     inline
      56           0 :     sal_Bool CREATE_PROVIDER(
      57             :                 const OUString& Implname,
      58             :                 const Sequence< OUString > & Services,
      59             :                 ::cppu::ComponentInstantiation Factory,
      60             :                 createFactoryFunc creator
      61             :             )
      62             :     {
      63           0 :         if (!xRet.is() && (Implname == sImplementationName))
      64             :         try
      65             :         {
      66           0 :             xRet = creator( xServiceManager, sImplementationName,Factory, Services,0);
      67             :         }
      68           0 :         catch(...)
      69             :         {
      70             :         }
      71           0 :         return xRet.is();
      72             :     }
      73             : 
      74           0 :     void* getProvider() const { return xRet.get(); }
      75             : };
      76             : 
      77             : extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL
      78           0 : jdbc_component_getImplementationEnvironment(
      79             :     char const ** ppEnvTypeName, uno_Environment **)
      80             : {
      81             :     // Recent Java 6 VMs make calls to JNI Attach/DetachCurrentThread (which
      82             :     // this code does extensively) very expensive.  A follow-up JVM fix reduced
      83             :     // the overhead significantly again for all threads but the main thread.  So
      84             :     // a quick hack to improve performance of this component again is to confine
      85             :     // it in the affine apartment (where all code will run on a single,
      86             :     // dedicated thread that is guaranteed no to be the main thread).  However,
      87             :     // a better fix would still be to redesign the code so that it does not call
      88             :     // Attach/DetachCurrentThread so frequently:
      89           0 :     *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME ":affine";
      90           0 : }
      91             : 
      92           0 : extern "C" SAL_DLLPUBLIC_EXPORT void* SAL_CALL jdbc_component_getFactory(
      93             :                     const sal_Char* pImplementationName,
      94             :                     void* pServiceManager,
      95             :                     void* /*pRegistryKey*/)
      96             : {
      97           0 :     void* pRet = 0;
      98           0 :     if (pServiceManager)
      99             :     {
     100           0 :         ProviderRequest aReq(pServiceManager,pImplementationName);
     101             : 
     102             :         aReq.CREATE_PROVIDER(
     103             :             java_sql_Driver::getImplementationName_Static(),
     104             :             java_sql_Driver::getSupportedServiceNames_Static(),
     105             :             java_sql_Driver_CreateInstance,
     106           0 :             ::cppu::createSingleFactory);
     107             : 
     108           0 :         if(aReq.xRet.is())
     109           0 :             aReq.xRet->acquire();
     110           0 :         pRet = aReq.getProvider();
     111             :     }
     112             : 
     113           0 :     return pRet;
     114             : }
     115             : 
     116             : 
     117             : 
     118             : 
     119             : 
     120             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */