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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 <sal/config.h>
23 :
24 : #include <map>
25 : #include <vector>
26 :
27 : #include <com/sun/star/lang/XEventListener.hpp>
28 : #include <com/sun/star/sdbc/XPooledConnection.hpp>
29 : #include <com/sun/star/sdbc/XDriver.hpp>
30 : #include <com/sun/star/beans/PropertyValue.hpp>
31 : #include <com/sun/star/beans/XPropertyChangeListener.hpp>
32 : #include <com/sun/star/reflection/XProxyFactory.hpp>
33 : #include <cppuhelper/weakref.hxx>
34 : #include <cppuhelper/implbase1.hxx>
35 : #include <osl/mutex.hxx>
36 : #include <salhelper/timer.hxx>
37 : #include <rtl/ref.hxx>
38 : #include <rtl/digest.h>
39 :
40 : namespace connectivity
41 : {
42 : class OConnectionPool;
43 :
44 : /// OPoolTimer - Invalidates the connection pool
45 :
46 0 : class OPoolTimer : public ::salhelper::Timer
47 : {
48 : OConnectionPool* m_pPool;
49 : public:
50 0 : OPoolTimer(OConnectionPool* _pPool,const ::salhelper::TTimeValue& _Time)
51 : : ::salhelper::Timer(_Time)
52 0 : ,m_pPool(_pPool)
53 0 : {}
54 : protected:
55 : virtual void SAL_CALL onShot() SAL_OVERRIDE;
56 : };
57 :
58 :
59 : //= OConnectionPool - the one-instance service for PooledConnections
60 : //= manages the active connections and the connections in the pool
61 :
62 : typedef ::cppu::WeakImplHelper1< ::com::sun::star::beans::XPropertyChangeListener> OConnectionPool_Base;
63 :
64 : // typedef for the interanl structure
65 : typedef ::std::vector< ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XPooledConnection> > TPooledConnections;
66 :
67 : // contains the currently pooled connections
68 : typedef struct
69 0 : {
70 : TPooledConnections aConnections;
71 : sal_Int32 nALiveCount; // will be decremented everytime a time says to, when will reach zero the pool will be deleted
72 0 : } TConnectionPool;
73 :
74 : struct TDigestHolder
75 : {
76 : sal_uInt8 m_pBuffer[RTL_DIGEST_LENGTH_SHA1];
77 0 : TDigestHolder()
78 : {
79 0 : m_pBuffer[0] = 0;
80 0 : }
81 :
82 : };
83 :
84 : // typedef TDigestHolder
85 :
86 : struct TDigestLess : public ::std::binary_function< TDigestHolder, TDigestHolder, bool>
87 : {
88 0 : bool operator() (const TDigestHolder& x, const TDigestHolder& y) const
89 : {
90 : sal_uInt32 i;
91 0 : for(i=0;i < RTL_DIGEST_LENGTH_SHA1 && (x.m_pBuffer[i] >= y.m_pBuffer[i]); ++i)
92 : ;
93 0 : return i < RTL_DIGEST_LENGTH_SHA1;
94 : }
95 : };
96 :
97 : typedef ::std::map< TDigestHolder,TConnectionPool,TDigestLess> TConnectionMap;
98 :
99 : // contains additional information about a activeconnection which is needed to put it back to the pool
100 : typedef struct
101 0 : {
102 : TConnectionMap::iterator aPos;
103 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XPooledConnection> xPooledConnection;
104 0 : } TActiveConnectionInfo;
105 :
106 : typedef ::std::map< ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection>,
107 : TActiveConnectionInfo> TActiveConnectionMap;
108 :
109 : class OConnectionPool : public OConnectionPool_Base
110 : {
111 : TConnectionMap m_aPool; // the pooled connections
112 : TActiveConnectionMap m_aActiveConnections; // the currently active connections
113 :
114 : ::osl::Mutex m_aMutex;
115 : ::rtl::Reference<OPoolTimer> m_xInvalidator; // invalidates the conntection pool when shot
116 :
117 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XDriver > m_xDriver; // the one and only driver for this connectionpool
118 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > m_xDriverNode; // config node entry
119 : ::com::sun::star::uno::Reference< ::com::sun::star::reflection::XProxyFactory > m_xProxyFactory;
120 : sal_Int32 m_nTimeOut;
121 : sal_Int32 m_nALiveCount;
122 :
123 : private:
124 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection> createNewConnection(const OUString& _rURL,
125 : const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& _rInfo);
126 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection> getPooledConnection(TConnectionMap::iterator& _rIter);
127 : // calculate the timeout and the corresponding ALiveCount
128 : void calculateTimeOuts();
129 :
130 : protected:
131 : // the dtor will be called from the last instance (last release call)
132 : virtual ~OConnectionPool();
133 : public:
134 : OConnectionPool(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XDriver >& _xDriver,
135 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xDriverNode,
136 : const ::com::sun::star::uno::Reference< ::com::sun::star::reflection::XProxyFactory >& _rxProxyFactory);
137 :
138 : // delete all refs
139 : void clear(sal_Bool _bDispose);
140 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection > SAL_CALL getConnectionWithInfo( const 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);
141 : // XEventListener
142 : virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
143 : // XPropertyChangeListener
144 : virtual void SAL_CALL propertyChange( const ::com::sun::star::beans::PropertyChangeEvent& evt ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
145 :
146 : void invalidatePooledConnections();
147 : };
148 : }
149 : #endif // _CONNECTIVITY_ZCONNECTIONPOOL_HXX_
150 :
151 :
152 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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