Package org.jboss.soa.bpel.runtime.engine.service

Source Code of org.jboss.soa.bpel.runtime.engine.service.BPELEngineService

/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and others contributors as indicated
* by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA  02110-1301, USA.
*/
package org.jboss.soa.bpel.runtime.engine.service;

import org.jboss.logging.Logger;
import org.jboss.soa.bpel.runtime.engine.BPELEngine;
import org.jboss.soa.bpel.runtime.engine.BPELEngineFactory;
import org.jboss.soa.bpel.runtime.engine.ode.BPELEngineImpl;
import org.jboss.util.naming.NonSerializableFactory;

import javax.naming.*;
import javax.persistence.EntityManagerFactory;

/**
* This is the JBoss Service managing the BPEL engine.
*
* @author gbrown
*
*/
public class BPELEngineService extends org.jboss.system.ServiceMBeanSupport implements BPELEngineServiceMBean {

  private final static Logger logger = Logger.getLogger(BPELEngineService.class);

  private String m_jndiName=null;
  private String m_pmapiJndiName=null;
  private BPELEngine m_bpelEngine=null;
 
  /**
   * The default constructor.
   */
  public BPELEngineService() {
  }

  /**
   * This method starts the service, instantiating the
   * BPEL engine and registering it with JNDI.
   */
  protected void startService() throws Exception {
    logger.info("Starting JBoss BPEL Engine");

    m_bpelEngine = BPELEngineFactory.getInstance();

    rebind();

    m_bpelEngine.init();

    rebindPMAPI();

    // hack to expose the EntityManagerFactory.
    // See org.apache.ode.dao.jpa.hibernate.BpelDAOConnectionFactoryImpl as well.
    EntityManagerFactory emf = (EntityManagerFactory)
            ((BPELEngineImpl)m_bpelEngine).getOdeConfig().getProperties().get("ode.emf");

    if(emf!=null) // can happen when the persistence implementation is changed
       bindEMF(emf);
    else
       log.warn("EntityManagerFactory cannot be exposed through JNDI.");

  }

  /**
   * This method stops the service, closing the
   * BPEL engine and unregistering it from JNDI.
   */
  protected void stopService() throws Exception {
    logger.info("Stopping JBoss BPEL Engine");

    unbind(m_jndiName);

    m_bpelEngine.close();

    m_bpelEngine = null;
  }

  /**
   * This method returns the JNDI name used to register the
   * BPEL engine.
   */
  public String getJndiName() {
    return m_jndiName;
  }

  /**
   * This method sets the JNDI name associated with the
   * BPEL engine.
   *
   * @param jndiName The JNDI name
   * @throws NamingException Failed to register BPEL engine against
   *           the JNDI name
   */
  public void setJndiName(String jndiName) throws NamingException {
    String oldName = m_jndiName;
    m_jndiName = jndiName;

    if (super.getState() == STARTED) {
      unbind(oldName);
      try {
        rebind();
      } catch(Exception e) {
        NamingException ne = new NamingException("Failed to update jndiName");
        ne.setRootCause(e);
        throw ne;
      }
    }
  }

  /**
   * This method returns the JNDI name used to register the
   * BPEL Process Management API.
   */
  public String getPmapiJndiName() {
    return m_jndiName;
  }

  /**
   * This method sets the JNDI name associated with the
   * BPEL Process Management API.
   *
   * @param jndiName The JNDI name
   * @throws NamingException Failed to register BPEL Process Management API against
   *           the JNDI name
   */
  public void setPmapiJndiName(String jndiName) throws NamingException {
    String oldName = m_pmapiJndiName;
    m_pmapiJndiName = jndiName;

    if (super.getState() == STARTED) {
   
      if (oldName != null) {
        unbind(oldName);
      }
     
      try {
        rebindPMAPI();
      } catch(Exception e) {
        NamingException ne = new NamingException("Failed to update PMAPI jndiName");
        ne.setRootCause(e);
        throw ne;
      }
    }
  }

  private void rebind() throws NamingException {
    InitialContext rootCtx = new InitialContext();
    Name fullName = rootCtx.getNameParser("").parse(m_jndiName);
    logger.info("fullName="+fullName);
    NonSerializableFactory.rebind(fullName, m_bpelEngine, true);
  }

  private void unbind(String jndiName) {
    try {
      InitialContext rootCtx = new InitialContext();
      rootCtx.unbind(jndiName);
      NonSerializableFactory.unbind(jndiName);
    } catch(NamingException e) {
      logger.error("Failed to unbind map", e);
    }
  }

  private void rebindPMAPI() throws NamingException {
  if (m_pmapiJndiName != null) {
      InitialContext rootCtx = new InitialContext();
      Name fullName = rootCtx.getNameParser("").parse(m_pmapiJndiName);
      logger.info("pmapi fullName="+fullName);
      NonSerializableFactory.rebind(fullName, m_bpelEngine.getManagementInterface(), true);
  }
  }

   private void bindEMF(EntityManagerFactory emf) throws NamingException {
       InitialContext rootCtx = new InitialContext();
       Name fullName = rootCtx.getNameParser("").parse("bpel/EntityManagerFactory");
       logger.info("EntityManagerFactory fullName="+fullName);
       NonSerializableFactory.rebind(fullName, emf, true);
   }
}
TOP

Related Classes of org.jboss.soa.bpel.runtime.engine.service.BPELEngineService

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.