| /* |
| * 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.dao.jpa; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ode.bpel.dao.BpelDAOConnection; |
| import org.apache.ode.bpel.dao.BpelDAOConnectionFactoryJDBC; |
| import org.apache.openjpa.ee.ManagedRuntime; |
| import org.apache.openjpa.util.GeneralException; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.EntityManagerFactory; |
| import javax.persistence.Persistence; |
| import javax.sql.DataSource; |
| import javax.transaction.NotSupportedException; |
| import javax.transaction.RollbackException; |
| import javax.transaction.Synchronization; |
| import javax.transaction.SystemException; |
| import javax.transaction.Transaction; |
| import javax.transaction.TransactionManager; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| /** |
| * @author Matthieu Riou <mriou at apache dot org> |
| */ |
| public class BPELDAOConnectionFactoryImpl implements BpelDAOConnectionFactoryJDBC { |
| static final Log __log = LogFactory.getLog(BPELDAOConnectionFactoryImpl.class); |
| |
| protected EntityManagerFactory _emf; |
| private TransactionManager _tm; |
| private DataSource _ds; |
| private Object _dbdictionary; |
| |
| static ThreadLocal<BPELDAOConnectionImpl> _connections = new ThreadLocal<BPELDAOConnectionImpl>(); |
| |
| public BPELDAOConnectionFactoryImpl() { |
| } |
| |
| @SuppressWarnings("unchecked") |
| public BpelDAOConnection getConnection() { |
| try { |
| _tm.getTransaction().registerSynchronization(new Synchronization() { |
| // OpenJPA allows cross-transaction entity managers, which we don't want |
| public void afterCompletion(int i) { |
| if (_connections.get() != null) |
| _connections.get().getEntityManager().close(); |
| _connections.set(null); |
| } |
| public void beforeCompletion() { } |
| }); |
| } catch (RollbackException e) { |
| throw new RuntimeException("Coulnd't register synchronizer!"); |
| } catch (SystemException e) { |
| throw new RuntimeException("Coulnd't register synchronizer!"); |
| } |
| if (_connections.get() != null) { |
| return _connections.get(); |
| } else { |
| HashMap propMap2 = new HashMap(); |
| propMap2.put("openjpa.TransactionMode", "managed"); |
| EntityManager em = _emf.createEntityManager(propMap2); |
| BPELDAOConnectionImpl conn = createBPELDAOConnection(em); |
| _connections.set(conn); |
| return conn; |
| } |
| } |
| |
| protected BPELDAOConnectionImpl createBPELDAOConnection(EntityManager em) { |
| return new BPELDAOConnectionImpl(em); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public void init(Properties properties) { |
| HashMap<String, Object> propMap = new HashMap<String,Object>(); |
| |
| // propMap.put("openjpa.Log", "DefaultLevel=TRACE"); |
| propMap.put("openjpa.Log", "log4j"); |
| // propMap.put("openjpa.jdbc.DBDictionary", "org.apache.openjpa.jdbc.sql.DerbyDictionary"); |
| |
| propMap.put("openjpa.ManagedRuntime", new TxMgrProvider()); |
| propMap.put("openjpa.ConnectionFactory", _ds); |
| propMap.put("openjpa.ConnectionFactoryMode", "managed"); |
| propMap.put("openjpa.FlushBeforeQueries", "false"); |
| propMap.put("openjpa.FetchBatchSize", 1000); |
| |
| if (_dbdictionary != null) |
| propMap.put("openjpa.jdbc.DBDictionary", _dbdictionary); |
| |
| if (properties != null) |
| for (Map.Entry me : properties.entrySet()) |
| propMap.put((String)me.getKey(),me.getValue()); |
| |
| _emf = Persistence.createEntityManagerFactory("ode-dao", propMap); |
| } |
| |
| public void setTransactionManager(TransactionManager tm) { |
| _tm = tm; |
| } |
| |
| public void setDataSource(DataSource datasource) { |
| _ds = datasource; |
| |
| } |
| |
| public void setDBDictionary(String dbd) { |
| _dbdictionary = dbd; |
| } |
| |
| public void setTransactionManager(Object tm) { |
| _tm = (TransactionManager) tm; |
| |
| } |
| |
| public void setUnmanagedDataSource(DataSource ds) { |
| } |
| |
| public void shutdown() { |
| _emf.close(); |
| } |
| |
| public DataSource getDataSource() { |
| return _ds; |
| } |
| |
| private class TxMgrProvider implements ManagedRuntime { |
| public TxMgrProvider() { |
| } |
| |
| public TransactionManager getTransactionManager() throws Exception { |
| return _tm; |
| } |
| |
| public void setRollbackOnly(Throwable cause) throws Exception { |
| // there is no generic support for setting the rollback cause |
| getTransactionManager().getTransaction().setRollbackOnly(); |
| } |
| |
| public Throwable getRollbackCause() throws Exception { |
| // there is no generic support for setting the rollback cause |
| return null; |
| } |
| |
| public Object getTransactionKey() throws Exception, SystemException { |
| return _tm.getTransaction(); |
| } |
| |
| public void doNonTransactionalWork(java.lang.Runnable runnable) throws NotSupportedException { |
| TransactionManager tm = null; |
| Transaction transaction = null; |
| |
| try { |
| tm = getTransactionManager(); |
| transaction = tm.suspend(); |
| } catch (Exception e) { |
| NotSupportedException nse = |
| new NotSupportedException(e.getMessage()); |
| nse.initCause(e); |
| throw nse; |
| } |
| |
| runnable.run(); |
| |
| try { |
| tm.resume(transaction); |
| } catch (Exception e) { |
| try { |
| transaction.setRollbackOnly(); |
| } |
| catch(SystemException se2) { |
| throw new GeneralException(se2); |
| } |
| NotSupportedException nse = |
| new NotSupportedException(e.getMessage()); |
| nse.initCause(e); |
| throw nse; |
| } |
| } |
| } |
| } |