Package com.sun.messaging.jmq.jmsserver

Source Code of com.sun.messaging.jmq.jmsserver.JMSRA_BrokerProcess

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package com.sun.messaging.jmq.jmsserver;

import java.util.Iterator;
import java.util.List;

import com.sun.messaging.jmq.jmsserver.service.Service;
import com.sun.messaging.jmq.jmsserver.service.ServiceManager;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQDirectService;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQService;
import com.sun.messaging.jmq.jmsservice.JMSRABroker;
import com.sun.messaging.jmq.jmsservice.JMSService;

/**
* Wrapper used to start the broker. It wraps a singleton class
* (only one broker can be running in any process).<P>
*
* <u>Example</u><P>
* <code><PRE>
*      BrokerProcess bp = BrokerProcess.getBrokerProcess();
*      try {
*     
*          Properties ht = BrokerProcess.convertArgs(args);
*          int exitcode = bp.start(true, ht, null);
*          System.out.println("Broker exited with " + exitcode);
*
*      } catch (IllegalArgumentException ex) {
*          System.err.println("Bad Argument " + ex.getMessage());
*          System.out.println(BrokerProcess.usage());
*      }
* </PRE></code>
*/
public class JMSRA_BrokerProcess extends BrokerProcess implements JMSRABroker
{
    private static final String  DEFAULT_DIRECTMODE_SERVICE_NAME = "jmsdirect";

    public JMSRA_BrokerProcess() {
        super();
    }

    /**
     *  Return the default JMS Service that supports 'DIRECT' in-JVM Java EE JMS
     *  clients.
     *
     *  @throws IllegalStateException if the broker is already stopped
     *
     */
    public JMSService getJMSService()
      throws IllegalStateException  {
  ServiceManager sm = Globals.getServiceManager();
  JMSService jmsService = getJMSService(DEFAULT_DIRECTMODE_SERVICE_NAME);

  if (jmsService != null)  {
      return (jmsService);
  }

  /*
   * If "jmsdirect" is not available, loop through all services
   */
  List serviceNames = sm.getAllServiceNames();
  Iterator iter = serviceNames.iterator();

  while (iter.hasNext())  {
      jmsService = getJMSService((String)iter.next());

      if (jmsService != null)  {
          return (jmsService);
      }
  }

  return (null);
    }

    /**
     *  Return the named JMS Service that supports 'DIRECT' in-JVM Java EEJMS
     *  clients.
     *
     *  @param  serviceName The name of the service to return
     *
     *  @throws IllegalStateException if the broker is already stopped
     */
    public JMSService getJMSService(String serviceName)
        throws IllegalStateException  {
  ServiceManager sm = Globals.getServiceManager();
  Service svc;
  IMQService imqSvc;
  IMQDirectService imqDirectSvc;

  if (sm == null)  {
      return (null);
  }

  svc = sm.getService(serviceName);

  if (svc == null)  {
      return (null);
  }

  if (!(svc instanceof IMQService))  {
      return (null);
  }

  imqSvc = (IMQService)svc;

  if (!imqSvc.isDirect())  {
      return (null);
  }

  if (!(imqSvc instanceof IMQDirectService))  {
      return (null);
  }

  imqDirectSvc = (IMQDirectService)imqSvc;

  return ((JMSService)imqDirectSvc);
    }
   
}

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