LCOV - code coverage report
Current view: top level - libreoffice/connectivity/source/cpool - ZConnectionPool.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 152 0.0 %
Date: 2012-12-27 Functions: 0 19 0.0 %
Legend: Lines: hit not hit

          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             : 
      21             : #include <stdio.h>
      22             : #include "ZConnectionPool.hxx"
      23             : #include <com/sun/star/lang/XSingleServiceFactory.hpp>
      24             : #include <com/sun/star/container/ElementExistException.hpp>
      25             : #include <comphelper/extract.hxx>
      26             : #include <comphelper/types.hxx>
      27             : #include <com/sun/star/lang/XComponent.hpp>
      28             : #include "ZPooledConnection.hxx"
      29             : #include "ZPoolCollection.hxx"
      30             : #include "connectivity/ConnectionWrapper.hxx"
      31             : #include <com/sun/star/beans/XPropertySet.hpp>
      32             : 
      33             : 
      34             : using namespace ::com::sun::star::uno;
      35             : using namespace ::com::sun::star::lang;
      36             : using namespace ::com::sun::star::sdbc;
      37             : using namespace ::com::sun::star::beans;
      38             : using namespace ::com::sun::star::container;
      39             : using namespace ::osl;
      40             : using namespace connectivity;
      41             : 
      42             : #include <algorithm>
      43             : 
      44             : //==========================================================================
      45             : //= OPoolTimer
      46             : //==========================================================================
      47           0 : void SAL_CALL OPoolTimer::onShot()
      48             : {
      49           0 :     m_pPool->invalidatePooledConnections();
      50           0 : }
      51             : namespace
      52             : {
      53             :     //--------------------------------------------------------------------
      54           0 :     static const ::rtl::OUString& getTimeoutNodeName()
      55             :     {
      56           0 :         static ::rtl::OUString s_sNodeName( RTL_CONSTASCII_USTRINGPARAM( "Timeout" ));
      57           0 :         return s_sNodeName;
      58             :     }
      59             : 
      60             : }
      61             : //==========================================================================
      62             : //= OConnectionPool
      63             : //==========================================================================
      64             : //--------------------------------------------------------------------------
      65           0 : OConnectionPool::OConnectionPool(const Reference< XDriver >& _xDriver,
      66             :                                  const Reference< XInterface >& _xDriverNode,
      67             :                                  const Reference< ::com::sun::star::reflection::XProxyFactory >& _rxProxyFactory)
      68             :     :m_xDriver(_xDriver)
      69             :     ,m_xDriverNode(_xDriverNode)
      70             :     ,m_xProxyFactory(_rxProxyFactory)
      71             :     ,m_nTimeOut(10)
      72           0 :     ,m_nALiveCount(10)
      73             : {
      74             :     OSL_ENSURE(m_xDriverNode.is(),"NO valid Driver node set!");
      75           0 :     Reference< XComponent >  xComponent(m_xDriverNode, UNO_QUERY);
      76           0 :     if (xComponent.is())
      77           0 :         xComponent->addEventListener(this);
      78             : 
      79           0 :     Reference<XPropertySet> xProp(m_xDriverNode,UNO_QUERY);
      80           0 :     if(xProp.is())
      81           0 :         xProp->addPropertyChangeListener(getTimeoutNodeName(),this);
      82             : 
      83           0 :     OPoolCollection::getNodeValue(getTimeoutNodeName(),m_xDriverNode) >>= m_nALiveCount;
      84           0 :     calculateTimeOuts();
      85             : 
      86           0 :     m_xInvalidator = new OPoolTimer(this,::salhelper::TTimeValue(m_nTimeOut,0));
      87           0 :     m_xInvalidator->start();
      88           0 : }
      89             : // -----------------------------------------------------------------------------
      90           0 : OConnectionPool::~OConnectionPool()
      91             : {
      92           0 :     clear(sal_False);
      93           0 : }
      94             : // -----------------------------------------------------------------------------
      95             : struct TRemoveEventListenerFunctor : ::std::unary_function<TPooledConnections::value_type,void>
      96             :                                     ,::std::unary_function<TActiveConnectionMap::value_type,void>
      97             : {
      98             :     OConnectionPool* m_pConnectionPool;
      99             :     sal_Bool m_bDispose;
     100             : 
     101           0 :     TRemoveEventListenerFunctor(OConnectionPool* _pConnectionPool,sal_Bool _bDispose = sal_False)
     102             :         : m_pConnectionPool(_pConnectionPool)
     103           0 :         ,m_bDispose(_bDispose)
     104             :     {
     105             :         OSL_ENSURE(m_pConnectionPool,"No connection pool!");
     106           0 :     }
     107             :     // -----------------------------------------------------------------------------
     108           0 :     void dispose(const Reference<XInterface>& _xComponent)
     109             :     {
     110           0 :         Reference< XComponent >  xComponent(_xComponent, UNO_QUERY);
     111             : 
     112           0 :         if ( xComponent.is() )
     113             :         {
     114           0 :             xComponent->removeEventListener(m_pConnectionPool);
     115           0 :             if ( m_bDispose )
     116           0 :                 xComponent->dispose();
     117           0 :         }
     118           0 :     }
     119             :     // -----------------------------------------------------------------------------
     120           0 :     void operator()(const TPooledConnections::value_type& _aValue)
     121             :     {
     122           0 :         dispose(_aValue);
     123           0 :     }
     124             :     // -----------------------------------------------------------------------------
     125           0 :     void operator()(const TActiveConnectionMap::value_type& _aValue)
     126             :     {
     127           0 :         dispose(_aValue.first);
     128           0 :     }
     129             : };
     130             : // -----------------------------------------------------------------------------
     131             : struct TConnectionPoolFunctor : ::std::unary_function<TConnectionMap::value_type,void>
     132             : {
     133             :     OConnectionPool* m_pConnectionPool;
     134             : 
     135           0 :     TConnectionPoolFunctor(OConnectionPool* _pConnectionPool)
     136           0 :         : m_pConnectionPool(_pConnectionPool)
     137             :     {
     138             :         OSL_ENSURE(m_pConnectionPool,"No connection pool!");
     139           0 :     }
     140           0 :     void operator()(const TConnectionMap::value_type& _aValue)
     141             :     {
     142           0 :         ::std::for_each(_aValue.second.aConnections.begin(),_aValue.second.aConnections.end(),TRemoveEventListenerFunctor(m_pConnectionPool,sal_True));
     143           0 :     }
     144             : };
     145             : // -----------------------------------------------------------------------------
     146           0 : void OConnectionPool::clear(sal_Bool _bDispose)
     147             : {
     148           0 :     MutexGuard aGuard(m_aMutex);
     149             : 
     150           0 :     if(m_xInvalidator->isTicking())
     151           0 :         m_xInvalidator->stop();
     152             : 
     153           0 :     ::std::for_each(m_aPool.begin(),m_aPool.end(),TConnectionPoolFunctor(this));
     154           0 :     m_aPool.clear();
     155             : 
     156           0 :     ::std::for_each(m_aActiveConnections.begin(),m_aActiveConnections.end(),TRemoveEventListenerFunctor(this,_bDispose));
     157           0 :     m_aActiveConnections.clear();
     158             : 
     159           0 :     Reference< XComponent >  xComponent(m_xDriverNode, UNO_QUERY);
     160           0 :     if (xComponent.is())
     161           0 :         xComponent->removeEventListener(this);
     162           0 :     Reference< XPropertySet >  xProp(m_xDriverNode, UNO_QUERY);
     163           0 :     if (xProp.is())
     164           0 :         xProp->removePropertyChangeListener(getTimeoutNodeName(),this);
     165             : 
     166           0 : m_xDriverNode.clear();
     167           0 : m_xDriver.clear();
     168           0 : }
     169             : //--------------------------------------------------------------------------
     170           0 : Reference< XConnection > SAL_CALL OConnectionPool::getConnectionWithInfo( const ::rtl::OUString& _rURL, const Sequence< PropertyValue >& _rInfo ) throw(SQLException, RuntimeException)
     171             : {
     172           0 :     MutexGuard aGuard(m_aMutex);
     173             : 
     174           0 :     Reference<XConnection> xConnection;
     175             : 
     176             :     // create a unique id and look for it in our map
     177           0 :     Sequence< PropertyValue > aInfo(_rInfo);
     178           0 :     TConnectionMap::key_type nId;
     179           0 :     OConnectionWrapper::createUniqueId(_rURL,aInfo,nId.m_pBuffer);
     180           0 :     TConnectionMap::iterator aIter = m_aPool.find(nId);
     181             : 
     182           0 :     if ( m_aPool.end() != aIter )
     183           0 :         xConnection = getPooledConnection(aIter);
     184             : 
     185           0 :     if ( !xConnection.is() )
     186           0 :         xConnection = createNewConnection(_rURL,_rInfo);
     187             : 
     188           0 :     return xConnection;
     189             : }
     190             : //--------------------------------------------------------------------------
     191           0 : void SAL_CALL OConnectionPool::disposing( const ::com::sun::star::lang::EventObject& Source ) throw (RuntimeException)
     192             : {
     193           0 :     Reference<XConnection> xConnection(Source.Source,UNO_QUERY);
     194           0 :     if(xConnection.is())
     195             :     {
     196           0 :         MutexGuard aGuard(m_aMutex);
     197           0 :         TActiveConnectionMap::iterator aIter = m_aActiveConnections.find(xConnection);
     198             :         OSL_ENSURE(aIter != m_aActiveConnections.end(),"OConnectionPool::disposing: Conenction wasn't in pool");
     199           0 :         if(aIter != m_aActiveConnections.end())
     200             :         { // move the pooled connection back to the pool
     201           0 :             aIter->second.aPos->second.nALiveCount = m_nALiveCount;
     202           0 :             aIter->second.aPos->second.aConnections.push_back(aIter->second.xPooledConnection);
     203           0 :             m_aActiveConnections.erase(aIter);
     204           0 :         }
     205             :     }
     206             :     else
     207             :     {
     208           0 :     m_xDriverNode.clear();
     209           0 :     }
     210           0 : }
     211             : // -----------------------------------------------------------------------------
     212           0 : Reference< XConnection> OConnectionPool::createNewConnection(const ::rtl::OUString& _rURL,const Sequence< PropertyValue >& _rInfo)
     213             : {
     214             :     // create new pooled conenction
     215           0 :     Reference< XPooledConnection > xPooledConnection = new ::connectivity::OPooledConnection(m_xDriver->connect(_rURL,_rInfo),m_xProxyFactory);
     216             :     // get the new connection from the pooled connection
     217           0 :     Reference<XConnection> xConnection = xPooledConnection->getConnection();
     218           0 :     if(xConnection.is())
     219             :     {
     220             :         // add our own as dispose listener to know when we should put the connection back to the pool
     221           0 :         Reference< XComponent >  xComponent(xConnection, UNO_QUERY);
     222           0 :         if (xComponent.is())
     223           0 :             xComponent->addEventListener(this);
     224             : 
     225             :         // save some information to find the right pool later on
     226           0 :         Sequence< PropertyValue > aInfo(_rInfo);
     227           0 :         TConnectionMap::key_type nId;
     228           0 :         OConnectionWrapper::createUniqueId(_rURL,aInfo,nId.m_pBuffer);
     229           0 :         TConnectionPool aPack;
     230             : 
     231             :         // insert the new connection and struct into the active connection map
     232           0 :         aPack.nALiveCount               = m_nALiveCount;
     233           0 :         TActiveConnectionInfo aActiveInfo;
     234           0 :         aActiveInfo.aPos                = m_aPool.insert(TConnectionMap::value_type(nId,aPack)).first;
     235           0 :         aActiveInfo.xPooledConnection   = xPooledConnection;
     236           0 :         m_aActiveConnections.insert(TActiveConnectionMap::value_type(xConnection,aActiveInfo));
     237             : 
     238           0 :         if(m_xInvalidator->isExpired())
     239           0 :             m_xInvalidator->start();
     240             :     }
     241             : 
     242           0 :     return xConnection;
     243             : }
     244             : // -----------------------------------------------------------------------------
     245           0 : void OConnectionPool::invalidatePooledConnections()
     246             : {
     247           0 :     MutexGuard aGuard(m_aMutex);
     248           0 :     TConnectionMap::iterator aIter = m_aPool.begin();
     249           0 :     for (; aIter != m_aPool.end(); )
     250             :     {
     251           0 :         if(!(--(aIter->second.nALiveCount))) // connections are invalid
     252             :         {
     253           0 :             ::std::for_each(aIter->second.aConnections.begin(),aIter->second.aConnections.end(),TRemoveEventListenerFunctor(this,sal_True));
     254             : 
     255           0 :             aIter->second.aConnections.clear();
     256             : 
     257             :             // look if the iterator aIter is still present in the active connection map
     258           0 :             TActiveConnectionMap::iterator aActIter = m_aActiveConnections.begin();
     259           0 :             for (; aActIter != m_aActiveConnections.end(); ++aActIter)
     260             :             {
     261           0 :                 if(aIter == aActIter->second.aPos)
     262           0 :                     break;
     263             :             }
     264           0 :             if(aActIter == m_aActiveConnections.end())
     265             :             {// he isn't so we can delete him
     266           0 :                 TConnectionMap::iterator aDeleteIter = aIter;
     267           0 :                 ++aIter;
     268           0 :                 m_aPool.erase(aDeleteIter);
     269             :             }
     270             :             else
     271           0 :                 ++aIter;
     272             :         }
     273             :         else
     274           0 :             ++aIter;
     275             :     }
     276           0 :     if(!m_aPool.empty())
     277           0 :         m_xInvalidator->start();
     278           0 : }
     279             : // -----------------------------------------------------------------------------
     280           0 : Reference< XConnection> OConnectionPool::getPooledConnection(TConnectionMap::iterator& _rIter)
     281             : {
     282           0 :     Reference<XConnection> xConnection;
     283             : 
     284           0 :     if(!_rIter->second.aConnections.empty())
     285             :     {
     286           0 :         Reference< XPooledConnection > xPooledConnection = _rIter->second.aConnections.back();
     287           0 :         _rIter->second.aConnections.pop_back();
     288             : 
     289             :         OSL_ENSURE(xPooledConnection.is(),"Can not be null here!");
     290           0 :         xConnection = xPooledConnection->getConnection();
     291           0 :         Reference< XComponent >  xComponent(xConnection, UNO_QUERY);
     292           0 :         if (xComponent.is())
     293           0 :             xComponent->addEventListener(this);
     294             : 
     295           0 :         TActiveConnectionInfo aActiveInfo;
     296           0 :         aActiveInfo.aPos = _rIter;
     297           0 :         aActiveInfo.xPooledConnection = xPooledConnection;
     298           0 :         m_aActiveConnections[xConnection] = aActiveInfo;
     299             :     }
     300           0 :     return xConnection;
     301             : }
     302             : // -----------------------------------------------------------------------------
     303           0 : void SAL_CALL OConnectionPool::propertyChange( const PropertyChangeEvent& evt ) throw (::com::sun::star::uno::RuntimeException)
     304             : {
     305           0 :     if(getTimeoutNodeName() == evt.PropertyName)
     306             :     {
     307           0 :         evt.NewValue >>= m_nALiveCount;
     308           0 :         calculateTimeOuts();
     309             :     }
     310           0 : }
     311             : // -----------------------------------------------------------------------------
     312           0 : void OConnectionPool::calculateTimeOuts()
     313             : {
     314           0 :     sal_Int32 nTimeOutCorrection = 10;
     315           0 :     if(m_nALiveCount < 100)
     316           0 :         nTimeOutCorrection = 20;
     317             : 
     318           0 :     m_nTimeOut      = m_nALiveCount / nTimeOutCorrection;
     319           0 :     m_nALiveCount   = m_nALiveCount / m_nTimeOut;
     320           0 : }
     321             : // -----------------------------------------------------------------------------
     322             : 
     323             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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