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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 : 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 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: */
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