| /* |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.ode.daohib; |
| |
| import org.apache.ode.daohib.bpel.hobj.*; |
| import org.apache.ode.utils.uuid.UUID; |
| import org.hibernate.HibernateException; |
| import org.hibernate.MappingException; |
| import org.hibernate.Session; |
| import org.hibernate.SessionFactory; |
| import org.hibernate.cfg.Configuration; |
| |
| import javax.sql.DataSource; |
| import javax.transaction.TransactionManager; |
| import java.sql.Connection; |
| import java.sql.SQLException; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| /** |
| * Manages hibernate sessions, and their association with |
| * a transaction thread. Uses a ThreadLocal strategy for |
| * managing sessions. |
| */ |
| public class SessionManager { |
| private static final String PROP_GUID = "ode.hibernate.guid"; |
| |
| private static final Map<String, TransactionManager> _txManagers = |
| Collections.synchronizedMap(new HashMap<String, TransactionManager>()); |
| private static final Map<String, DataSource> _dataSources = |
| Collections.synchronizedMap(new HashMap<String,DataSource>()); |
| |
| private final String _uuid = new UUID().toString(); |
| private final TransactionManager _txManager; |
| private final SessionFactory _sessionFactory; |
| |
| /** Inaccessible constructor. */ |
| public SessionManager(Properties env, DataSource ds, TransactionManager tx) throws HibernateException { |
| if(tx == null) |
| throw new IllegalArgumentException("Null transaction manager"); |
| |
| _txManager = tx; |
| _txManagers.put(_uuid,tx); |
| _dataSources.put(_uuid,ds); |
| |
| _sessionFactory = getDefaultConfiguration() |
| .setProperties(env) |
| .setProperty(PROP_GUID, _uuid) |
| .buildSessionFactory(); |
| } |
| |
| TransactionManager getTransactionManager() { |
| return _txManager; |
| } |
| |
| /** |
| * Get the current Hibernate Session. |
| */ |
| public Session getSession() { |
| return _sessionFactory.getCurrentSession(); |
| } |
| |
| /** |
| * Returns a hibernate configuration with hibernate DAO objects added as resources. |
| * @return |
| * @throws MappingException |
| */ |
| public Configuration getDefaultConfiguration() throws MappingException { |
| return new Configuration() |
| .addClass(HProcess.class) |
| .addClass(HProcessInstance.class) |
| .addClass(HCorrelator.class) |
| .addClass(HCorrelatorMessage.class) |
| .addClass(HCorrelationProperty.class) |
| .addClass(HCorrelatorSelector.class) |
| .addClass(HMessageExchange.class) |
| .addClass(HMessage.class) |
| .addClass(HPartnerLink.class) |
| .addClass(HScope.class) |
| .addClass(HCorrelationSet.class) |
| .addClass(HXmlData.class) |
| .addClass(HVariableProperty.class) |
| .addClass(HBpelEvent.class) |
| .addClass(HFaultData.class) |
| .addClass(HActivityRecovery.class) |
| .addClass(HLargeData.class) |
| .addClass(HMessageExchangeProperty.class); |
| } |
| |
| public static TransactionManager getTransactionManager(Properties props) { |
| String guid = props.getProperty(PROP_GUID); |
| return _txManagers.get(guid); |
| } |
| |
| public static Connection getConnection(Properties props) throws SQLException { |
| String guid = props.getProperty(PROP_GUID); |
| return _dataSources.get(guid).getConnection(); |
| } |
| } |