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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /connectivity/source/cpool/ZPoolCollection.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'connectivity/source/cpool/ZPoolCollection.cxx')
-rw-r--r--connectivity/source/cpool/ZPoolCollection.cxx468
1 files changed, 468 insertions, 0 deletions
diff --git a/connectivity/source/cpool/ZPoolCollection.cxx b/connectivity/source/cpool/ZPoolCollection.cxx
new file mode 100644
index 000000000..ba17e6fea
--- /dev/null
+++ b/connectivity/source/cpool/ZPoolCollection.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "ZPoolCollection.hxx"
+#include "ZDriverWrapper.hxx"
+#include "ZConnectionPool.hxx"
+#include <com/sun/star/configuration/theDefaultProvider.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/beans/NamedValue.hpp>
+#include <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/reflection/ProxyFactory.hpp>
+#include <com/sun/star/sdbc/DriverManager.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <tools/diagnose_ex.h>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::sdbc;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::container;
+using namespace ::com::sun::star::reflection;
+using namespace ::osl;
+using namespace connectivity;
+
+
+static OUString getConnectionPoolNodeName()
+{
+ return "org.openoffice.Office.DataAccess/ConnectionPool";
+}
+
+static OUString getEnablePoolingNodeName()
+{
+ return "EnablePooling";
+}
+
+static OUString getDriverNameNodeName()
+{
+ return "DriverName";
+}
+
+static OUString getDriverSettingsNodeName()
+{
+ return "DriverSettings";
+}
+
+static OUString getEnableNodeName()
+{
+ return "Enable";
+}
+
+
+OPoolCollection::OPoolCollection(const Reference< XComponentContext >& _rxContext)
+ :m_xContext(_rxContext)
+{
+ // bootstrap all objects supporting the .sdb.Driver service
+ m_xManager = DriverManager::create( m_xContext );
+
+ m_xProxyFactory = ProxyFactory::create( m_xContext );
+
+ Reference<XPropertySet> xProp(getConfigPoolRoot(),UNO_QUERY);
+ if ( xProp.is() )
+ xProp->addPropertyChangeListener(getEnablePoolingNodeName(),this);
+ // attach as desktop listener to know when we have to release our pools
+ osl_atomic_increment( &m_refCount );
+ {
+
+ m_xDesktop = css::frame::Desktop::create( m_xContext );
+ m_xDesktop->addTerminateListener(this);
+
+ }
+ osl_atomic_decrement( &m_refCount );
+}
+
+OPoolCollection::~OPoolCollection()
+{
+ clearConnectionPools(false);
+}
+
+Reference< XConnection > SAL_CALL OPoolCollection::getConnection( const OUString& _rURL )
+{
+ return getConnectionWithInfo(_rURL,Sequence< PropertyValue >());
+}
+
+Reference< XConnection > SAL_CALL OPoolCollection::getConnectionWithInfo( const OUString& _rURL, const Sequence< PropertyValue >& _rInfo )
+{
+ MutexGuard aGuard(m_aMutex);
+ Reference< XConnection > xConnection;
+ Reference< XDriver > xDriver;
+ Reference< XInterface > xDriverNode;
+ OUString sImplName;
+ if(isPoolingEnabledByUrl(_rURL,xDriver,sImplName,xDriverNode) && xDriver.is())
+ {
+ OConnectionPool* pConnectionPool = getConnectionPool(sImplName,xDriver,xDriverNode);
+
+ if(pConnectionPool)
+ xConnection = pConnectionPool->getConnectionWithInfo(_rURL,_rInfo);
+ }
+ else if(xDriver.is())
+ xConnection = xDriver->connect(_rURL,_rInfo);
+
+ return xConnection;
+}
+
+void SAL_CALL OPoolCollection::setLoginTimeout( sal_Int32 seconds )
+{
+ MutexGuard aGuard(m_aMutex);
+ m_xManager->setLoginTimeout(seconds);
+}
+
+sal_Int32 SAL_CALL OPoolCollection::getLoginTimeout( )
+{
+ MutexGuard aGuard(m_aMutex);
+ return m_xManager->getLoginTimeout();
+}
+
+OUString SAL_CALL OPoolCollection::getImplementationName( )
+{
+ return "com.sun.star.sdbc.OConnectionPool";
+}
+
+sal_Bool SAL_CALL OPoolCollection::supportsService( const OUString& _rServiceName )
+{
+ return cppu::supportsService(this, _rServiceName);
+}
+
+
+Sequence< OUString > SAL_CALL OPoolCollection::getSupportedServiceNames( )
+{
+ return { "com.sun.star.sdbc.ConnectionPool" };
+}
+
+Reference< XDriver > SAL_CALL OPoolCollection::getDriverByURL( const OUString& _rURL )
+{
+ // returns the original driver when no connection pooling is enabled else it returns the proxy
+ MutexGuard aGuard(m_aMutex);
+
+ Reference< XDriver > xDriver;
+ Reference< XInterface > xDriverNode;
+ OUString sImplName;
+ if(isPoolingEnabledByUrl(_rURL,xDriver,sImplName,xDriverNode))
+ {
+ Reference< XDriver > xExistentProxy;
+ // look if we already have a proxy for this driver
+ for (const auto& [rxDriver, rxDriverRef] : m_aDriverProxies)
+ {
+ // hold the proxy alive as long as we're in this loop round
+ xExistentProxy = rxDriverRef;
+
+ if (xExistentProxy.is() && (rxDriver.get() == xDriver.get()))
+ // already created a proxy for this
+ break;
+ }
+ if (xExistentProxy.is())
+ {
+ xDriver = xExistentProxy;
+ }
+ else
+ { // create a new proxy for the driver
+ // this allows us to control the connections created by it
+ Reference< XAggregation > xDriverProxy = m_xProxyFactory->createProxy(xDriver);
+ OSL_ENSURE(xDriverProxy.is(), "OConnectionPool::getDriverByURL: invalid proxy returned by the proxy factory!");
+
+ OConnectionPool* pConnectionPool = getConnectionPool(sImplName,xDriver,xDriverNode);
+ xDriver = new ODriverWrapper(xDriverProxy, pConnectionPool);
+ }
+ }
+
+ return xDriver;
+}
+
+bool OPoolCollection::isDriverPoolingEnabled(std::u16string_view _sDriverImplName,
+ Reference< XInterface >& _rxDriverNode)
+{
+ bool bEnabled = false;
+ Reference<XInterface> xConnectionPoolRoot = getConfigPoolRoot();
+ // then look for which of them settings are stored in the configuration
+ Reference< XNameAccess > xDirectAccess(openNode(getDriverSettingsNodeName(),xConnectionPoolRoot),UNO_QUERY);
+
+ if(xDirectAccess.is())
+ {
+ Sequence< OUString > aDriverKeys = xDirectAccess->getElementNames();
+ const OUString* pDriverKeys = aDriverKeys.getConstArray();
+ const OUString* pDriverKeysEnd = pDriverKeys + aDriverKeys.getLength();
+ for (;pDriverKeys != pDriverKeysEnd; ++pDriverKeys)
+ {
+ // the name of the driver in this round
+ if(_sDriverImplName == *pDriverKeys)
+ {
+ _rxDriverNode = openNode(*pDriverKeys,xDirectAccess);
+ if(_rxDriverNode.is())
+ getNodeValue(getEnableNodeName(),_rxDriverNode) >>= bEnabled;
+ break;
+ }
+ }
+ }
+ return bEnabled;
+}
+
+bool OPoolCollection::isPoolingEnabled()
+{
+ // the config node where all pooling relevant info are stored under
+ Reference<XInterface> xConnectionPoolRoot = getConfigPoolRoot();
+
+ // the global "enabled" flag
+ bool bEnabled = false;
+ if(xConnectionPoolRoot.is())
+ getNodeValue(getEnablePoolingNodeName(),xConnectionPoolRoot) >>= bEnabled;
+ return bEnabled;
+}
+
+Reference<XInterface> const & OPoolCollection::getConfigPoolRoot()
+{
+ if(!m_xConfigNode.is())
+ m_xConfigNode = createWithProvider(
+ css::configuration::theDefaultProvider::get(m_xContext),
+ getConnectionPoolNodeName());
+ return m_xConfigNode;
+}
+
+bool OPoolCollection::isPoolingEnabledByUrl(const OUString& _sUrl,
+ Reference< XDriver >& _rxDriver,
+ OUString& _rsImplName,
+ Reference< XInterface >& _rxDriverNode)
+{
+ bool bEnabled = false;
+ _rxDriver = m_xManager->getDriverByURL(_sUrl);
+ if (_rxDriver.is() && isPoolingEnabled())
+ {
+ Reference< XServiceInfo > xServiceInfo(_rxDriver,UNO_QUERY);
+ OSL_ENSURE(xServiceInfo.is(),"Each driver should have a XServiceInfo interface!");
+
+ if(xServiceInfo.is())
+ {
+ // look for the implementation name of the driver
+ _rsImplName = xServiceInfo->getImplementationName();
+ bEnabled = isDriverPoolingEnabled(_rsImplName,_rxDriverNode);
+ }
+ }
+ return bEnabled;
+}
+
+void OPoolCollection::clearConnectionPools(bool _bDispose)
+{
+ for(auto& rEntry : m_aPools)
+ {
+ rEntry.second->clear(_bDispose);
+ }
+ m_aPools.clear();
+}
+
+OConnectionPool* OPoolCollection::getConnectionPool(const OUString& _sImplName,
+ const Reference< XDriver >& _xDriver,
+ const Reference< XInterface >& _xDriverNode)
+{
+ OConnectionPool *pRet = nullptr;
+ OConnectionPools::const_iterator aFind = m_aPools.find(_sImplName);
+ if (aFind != m_aPools.end())
+ pRet = aFind->second.get();
+ else if (_xDriver.is() && _xDriverNode.is())
+ {
+ Reference<XPropertySet> xProp(_xDriverNode,UNO_QUERY);
+ if(xProp.is())
+ xProp->addPropertyChangeListener(getEnableNodeName(),this);
+ rtl::Reference<OConnectionPool> pConnectionPool = new OConnectionPool(_xDriver,_xDriverNode,m_xProxyFactory);
+ m_aPools.emplace(_sImplName,pConnectionPool);
+ pRet = pConnectionPool.get();
+ }
+
+ OSL_ENSURE(pRet, "Could not query DriverManager from ConnectionPool!");
+
+ return pRet;
+}
+
+Reference< XInterface > OPoolCollection::createWithProvider(const Reference< XMultiServiceFactory >& _rxConfProvider,
+ const OUString& _rPath)
+{
+ OSL_ASSERT(_rxConfProvider.is());
+ Sequence< Any > args{ Any(NamedValue( "nodepath", Any(_rPath))) };
+ Reference< XInterface > xInterface(
+ _rxConfProvider->createInstanceWithArguments(
+ "com.sun.star.configuration.ConfigurationAccess",
+ args));
+ OSL_ENSURE(
+ xInterface.is(),
+ "::createWithProvider: could not create the node access!");
+ return xInterface;
+}
+
+Reference<XInterface> OPoolCollection::openNode(const OUString& _rPath,const Reference<XInterface>& _xTreeNode) noexcept
+{
+ Reference< XHierarchicalNameAccess > xHierarchyAccess(_xTreeNode, UNO_QUERY);
+ Reference< XNameAccess > xDirectAccess(_xTreeNode, UNO_QUERY);
+ Reference< XInterface > xNode;
+
+ try
+ {
+ if (xDirectAccess.is() && xDirectAccess->hasByName(_rPath))
+ {
+ xNode.set(xDirectAccess->getByName(_rPath), css::uno::UNO_QUERY);
+ SAL_WARN_IF(
+ !xNode.is(), "connectivity.cpool",
+ "OConfigurationNode::openNode: could not open the node!");
+ }
+ else if (xHierarchyAccess.is())
+ {
+ xNode.set(
+ xHierarchyAccess->getByHierarchicalName(_rPath),
+ css::uno::UNO_QUERY);
+ SAL_WARN_IF(
+ !xNode.is(), "connectivity.cpool",
+ "OConfigurationNode::openNode: could not open the node!");
+ }
+
+ }
+ catch(const NoSuchElementException&)
+ {
+ SAL_WARN("connectivity.cpool", "::openNode: there is no element named " <<
+ _rPath << "!");
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("connectivity.cpool", "OConfigurationNode::openNode: caught an exception while retrieving the node");
+ }
+ return xNode;
+}
+
+Any OPoolCollection::getNodeValue(const OUString& _rPath,const Reference<XInterface>& _xTreeNode) noexcept
+{
+ Reference< XHierarchicalNameAccess > xHierarchyAccess(_xTreeNode, UNO_QUERY);
+ Reference< XNameAccess > xDirectAccess(_xTreeNode, UNO_QUERY);
+ Any aReturn;
+ try
+ {
+ if (xDirectAccess.is() && xDirectAccess->hasByName(_rPath) )
+ {
+ aReturn = xDirectAccess->getByName(_rPath);
+ }
+ else if (xHierarchyAccess.is())
+ {
+ aReturn = xHierarchyAccess->getByHierarchicalName(_rPath);
+ }
+ }
+ catch(const NoSuchElementException&)
+ {
+ TOOLS_WARN_EXCEPTION("connectivity.cpool", "" );
+ }
+ return aReturn;
+}
+
+void SAL_CALL OPoolCollection::queryTermination( const EventObject& /*Event*/ )
+{
+}
+
+void SAL_CALL OPoolCollection::notifyTermination( const EventObject& /*Event*/ )
+{
+ clearDesktop();
+}
+
+void SAL_CALL OPoolCollection::disposing( const EventObject& Source )
+{
+ MutexGuard aGuard(m_aMutex);
+ if ( m_xDesktop == Source.Source )
+ {
+ clearDesktop();
+ }
+ else
+ {
+ try
+ {
+ Reference<XPropertySet> xProp(Source.Source,UNO_QUERY);
+ if(Source.Source == m_xConfigNode)
+ {
+ if ( xProp.is() )
+ xProp->removePropertyChangeListener(getEnablePoolingNodeName(),this);
+ m_xConfigNode.clear();
+ }
+ else if ( xProp.is() )
+ xProp->removePropertyChangeListener(getEnableNodeName(),this);
+ }
+ catch(const Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("connectivity.cpool", "");
+ }
+ }
+}
+
+void SAL_CALL OPoolCollection::propertyChange( const css::beans::PropertyChangeEvent& evt )
+{
+ MutexGuard aGuard(m_aMutex);
+ if(evt.Source == m_xConfigNode)
+ {
+ bool bEnabled = true;
+ evt.NewValue >>= bEnabled;
+ if(!bEnabled )
+ {
+ m_aDriverProxies.clear();
+ m_aDriverProxies = MapDriver2DriverRef();
+ clearConnectionPools(false);
+ }
+ }
+ else if(evt.Source.is())
+ {
+ bool bEnabled = true;
+ evt.NewValue >>= bEnabled;
+ if(!bEnabled)
+ {
+ OUString sThisDriverName;
+ getNodeValue(getDriverNameNodeName(),evt.Source) >>= sThisDriverName;
+ // 1st release the driver
+ // look if we already have a proxy for this driver
+ MapDriver2DriverRef::iterator aLookup = m_aDriverProxies.begin();
+ while( aLookup != m_aDriverProxies.end())
+ {
+ MapDriver2DriverRef::iterator aFind = aLookup;
+ Reference<XServiceInfo> xInfo(aLookup->first,UNO_QUERY);
+ ++aLookup;
+ if(xInfo.is() && xInfo->getImplementationName() == sThisDriverName)
+ m_aDriverProxies.erase(aFind);
+ }
+
+ // 2nd clear the connectionpool
+ OConnectionPools::iterator aFind = m_aPools.find(sThisDriverName);
+ if(aFind != m_aPools.end())
+ {
+ aFind->second->clear(false);
+ m_aPools.erase(aFind);
+ }
+ }
+ }
+}
+
+void OPoolCollection::clearDesktop()
+{
+ clearConnectionPools(true);
+ if ( m_xDesktop.is() )
+ m_xDesktop->removeTerminateListener(this);
+ m_xDesktop.clear();
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+connectivity_OPoolCollection_get_implementation(
+ css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+ return cppu::acquire(new OPoolCollection(context));
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */