/*
 * 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.hibernate;

import java.util.Map;
import java.util.Properties;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import javax.transaction.TransactionManager;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.dao.jpa.JpaOperator;
import org.apache.ode.dao.jpa.store.ConfStoreDAOConnectionImpl;
import org.apache.ode.dao.store.ConfStoreDAOConnection;
import org.apache.ode.dao.store.ConfStoreDAOConnectionFactory;
import org.apache.ode.il.config.OdeConfigProperties;
import org.hibernate.ejb.HibernatePersistence;
/**

 */
public class ConfStoreDAOConnectionFactoryImpl implements ConfStoreDAOConnectionFactory {

  static final Log __log = LogFactory.getLog(ConfStoreDAOConnectionFactoryImpl.class);
  EntityManagerFactory _emf;
  TransactionManager _txm;
  DataSource _ds;
  JpaOperator _operator = new JpaOperatorImpl();


  @Override
public void init(Properties odeConfig,TransactionManager txm, Object env) {
    this._txm = txm;
    this._ds = (DataSource) env;
    Map emfProperties = HibernateUtil.buildConfig(OdeConfigProperties.PROP_DAOCF_STORE + ".", odeConfig, _txm, _ds);
        HibernatePersistence p = new HibernatePersistence();

        _emf = p.createEntityManagerFactory("ode-store", emfProperties);

  }

  @Override
public ConfStoreDAOConnection getConnection() {
    final ThreadLocal<ConfStoreDAOConnectionImpl> currentConnection = ConfStoreDAOConnectionImpl.getThreadLocal();

    ConfStoreDAOConnectionImpl conn = currentConnection.get();
    if (conn != null && HibernateUtil.isOpen(conn)) {
      return conn;
    } else {
      EntityManager em = _emf.createEntityManager();
      conn = new ConfStoreDAOConnectionImpl(em, _txm, _operator);
      currentConnection.set(conn);
      return conn;
    }
  }

   @Override
public void shutdown() {
    _emf.close();
  }
}