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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 : #ifndef _CONNECTIVITY_ZCONNECTIONPOOL_HXX_
20 : #define _CONNECTIVITY_ZCONNECTIONPOOL_HXX_
21 :
22 : #include <com/sun/star/lang/XEventListener.hpp>
23 : #include <com/sun/star/sdbc/XPooledConnection.hpp>
24 : #include <com/sun/star/sdbc/XDriver.hpp>
25 : #include <com/sun/star/beans/PropertyValue.hpp>
26 : #include <com/sun/star/beans/XPropertyChangeListener.hpp>
27 : #include <com/sun/star/reflection/XProxyFactory.hpp>
28 : #include <cppuhelper/weakref.hxx>
29 : #include <cppuhelper/implbase1.hxx>
30 : #include <comphelper/stl_types.hxx>
31 : #include <osl/mutex.hxx>
32 : #include <salhelper/timer.hxx>
33 : #include <rtl/ref.hxx>
34 : #include <rtl/digest.h>
35 :
36 : namespace connectivity
37 : {
38 : class OConnectionPool;
39 : //==========================================================================
40 : /// OPoolTimer - Invalidates the connection pool
41 : //==========================================================================
42 0 : class OPoolTimer : public ::salhelper::Timer
43 : {
44 : OConnectionPool* m_pPool;
45 : public:
46 0 : OPoolTimer(OConnectionPool* _pPool,const ::salhelper::TTimeValue& _Time)
47 : : ::salhelper::Timer(_Time)
48 0 : ,m_pPool(_pPool)
49 0 : {}
50 : protected:
51 : virtual void SAL_CALL onShot();
52 : };
53 :
54 : //==========================================================================
55 : //= OConnectionPool - the one-instance service for PooledConnections
56 : //= manages the active connections and the connections in the pool
57 : //==========================================================================
58 : typedef ::cppu::WeakImplHelper1< ::com::sun::star::beans::XPropertyChangeListener> OConnectionPool_Base;
59 :
60 : // typedef for the interanl structure
61 : typedef ::std::vector< ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XPooledConnection> > TPooledConnections;
62 :
63 : // contains the currently pooled connections
64 : typedef struct
65 0 : {
66 : TPooledConnections aConnections;
67 : sal_Int32 nALiveCount; // will be decremented everytime a time says to, when will reach zero the pool will be deleted
68 0 : } TConnectionPool;
69 :
70 : struct TDigestHolder
71 : {
72 : sal_uInt8 m_pBuffer[RTL_DIGEST_LENGTH_SHA1];
73 0 : TDigestHolder()
74 : {
75 0 : m_pBuffer[0] = 0;
76 0 : }
77 :
78 : };
79 :
80 : // typedef TDigestHolder
81 :
82 : struct TDigestLess : public ::std::binary_function< TDigestHolder, TDigestHolder, bool>
83 : {
84 0 : bool operator() (const TDigestHolder& x, const TDigestHolder& y) const
85 : {
86 : sal_uInt32 i;
87 0 : for(i=0;i < RTL_DIGEST_LENGTH_SHA1 && (x.m_pBuffer[i] >= y.m_pBuffer[i]); ++i)
88 : ;
89 0 : return i < RTL_DIGEST_LENGTH_SHA1;
90 : }
91 : };
92 :
93 : typedef ::std::map< TDigestHolder,TConnectionPool,TDigestLess> TConnectionMap;
94 :
95 : // contains additional information about a activeconnection which is needed to put it back to the pool
96 : typedef struct
97 0 : {
98 : TConnectionMap::iterator aPos;
99 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XPooledConnection> xPooledConnection;
100 0 : } TActiveConnectionInfo;
101 :
102 : typedef ::std::map< ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection>,
103 : TActiveConnectionInfo> TActiveConnectionMap;
104 :
105 : class OConnectionPool : public OConnectionPool_Base
106 : {
107 : TConnectionMap m_aPool; // the pooled connections
108 : TActiveConnectionMap m_aActiveConnections; // the currently active connections
109 :
110 : ::osl::Mutex m_aMutex;
111 : ::rtl::Reference<OPoolTimer> m_xInvalidator; // invalidates the conntection pool when shot
112 :
113 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XDriver > m_xDriver; // the one and only driver for this connectionpool
114 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > m_xDriverNode; // config node entry
115 : ::com::sun::star::uno::Reference< ::com::sun::star::reflection::XProxyFactory > m_xProxyFactory;
116 : sal_Int32 m_nTimeOut;
117 : sal_Int32 m_nALiveCount;
118 :
119 : private:
120 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection> createNewConnection(const ::rtl::OUString& _rURL,
121 : const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _rInfo);
122 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection> getPooledConnection(TConnectionMap::iterator& _rIter);
123 : // calculate the timeout and the corresponding ALiveCount
124 : void calculateTimeOuts();
125 :
126 : protected:
127 : // the dtor will be called from the last instance (last release call)
128 : virtual ~OConnectionPool();
129 : public:
130 : OConnectionPool(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XDriver >& _xDriver,
131 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xDriverNode,
132 : const ::com::sun::star::uno::Reference< ::com::sun::star::reflection::XProxyFactory >& _rxProxyFactory);
133 :
134 : // delete all refs
135 : void clear(sal_Bool _bDispose);
136 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection > SAL_CALL getConnectionWithInfo( const ::rtl::OUString& url, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& info ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException);
137 : // XEventListener
138 : virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException);
139 : // XPropertyChangeListener
140 : virtual void SAL_CALL propertyChange( const ::com::sun::star::beans::PropertyChangeEvent& evt ) throw (::com::sun::star::uno::RuntimeException);
141 :
142 : void invalidatePooledConnections();
143 : };
144 : }
145 : #endif // _CONNECTIVITY_ZCONNECTIONPOOL_HXX_
146 :
147 :
148 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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