Package org.objectweb.joram.client.jms.local

Source Code of org.objectweb.joram.client.jms.local.LocalRequestChannel

/*
* JORAM: Java(TM) Open Reliable Asynchronous Messaging
* Copyright (C) 2004 - 2009 ScalAgent Distributed Technologies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY 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 along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
* USA.
*
* Initial developer(s): ScalAgent Distributed Technologies
* Contributor(s):
*/
package org.objectweb.joram.client.jms.local;

import java.util.Date;
import java.util.Timer;

import javax.jms.JMSException;

import org.objectweb.joram.client.jms.connection.RequestChannel;
import org.objectweb.joram.mom.dest.AdminTopic;
import org.objectweb.joram.mom.notifications.GetProxyIdNot;
import org.objectweb.joram.mom.proxies.ConnectionManager;
import org.objectweb.joram.mom.proxies.OpenConnectionNot;
import org.objectweb.joram.mom.proxies.StandardConnectionContext;
import org.objectweb.joram.shared.client.AbstractJmsReply;
import org.objectweb.joram.shared.client.AbstractJmsRequest;
import org.objectweb.joram.shared.security.Identity;
import org.objectweb.util.monolog.api.BasicLevel;
import org.objectweb.util.monolog.api.Logger;

import fr.dyade.aaa.agent.AgentId;
import fr.dyade.aaa.agent.AgentServer;
import fr.dyade.aaa.common.Debug;
import fr.dyade.aaa.util.management.MXWrapper;

public class LocalRequestChannel implements RequestChannel, LocalRequestChannelMBean {
  /** logger */
  public static Logger logger = Debug.getLogger(LocalRequestChannel.class.getName());

  private Identity identity;

  private AgentId proxyId;

  private StandardConnectionContext ctx;

  private Date creationDate;

  private long sentCount;

  private long receivedCount;

  public LocalRequestChannel(Identity identity) {
    if (logger.isLoggable(BasicLevel.DEBUG))
      logger.log(BasicLevel.DEBUG, "LocalConnection.<init>(" + identity + ')');
   
    this.identity = identity;
  }

  public void setTimer(Timer timer) {
    // Use of timer is useless
  }

  public void connect() throws Exception {
    if (logger.isLoggable(BasicLevel.DEBUG))
      logger.log(BasicLevel.DEBUG, "LocalConnection.connect()");

    LocalConnections localConnections = LocalConnections.getCurrentInstance();
    if (!localConnections.isActivated()) {
      throw new IllegalStateException("Local connections have been deactivated.");
    }

    localConnections.increaseInitiatedConnectionCount();

    if (AgentServer.getStatus() != AgentServer.Status.STARTED) {
      if ((AgentServer.getStatus() != AgentServer.Status.INITIALIZED) &&
          (AgentServer.getStatus() != AgentServer.Status.STOPPED)) {
        if (logger.isLoggable(BasicLevel.ERROR))
          logger.log(BasicLevel.ERROR,
                     "LocalConnection.connect(), server is not initialized: " + AgentServer.getStatusInfo() + '.');
        throw new Exception("Server is not initialized.");
      }

      if (logger.isLoggable(BasicLevel.WARN))
        logger.log(BasicLevel.WARN,
                   "LocalConnection.connect(), server is not started: " + AgentServer.getStatusInfo() + '.');
      throw new Exception("Server is not started.");
    }

    GetProxyIdNot gpin = new GetProxyIdNot(identity, null);
    try {
      gpin.invoke(AdminTopic.getDefault());
      proxyId = gpin.getProxyId();
    } catch (Exception exc) {
      if (logger.isLoggable(BasicLevel.DEBUG))
        logger.log(BasicLevel.DEBUG, "", exc);
      localConnections.increaseFailedLoginCount();
      throw new JMSException(exc.getMessage());
    }

    OpenConnectionNot ocn = new OpenConnectionNot(false, 0);
    try {
      ocn.invoke(proxyId);
      ctx = (StandardConnectionContext) ocn.getConnectionContext();
      creationDate = new Date();
    } catch (Exception exc) {
      if (logger.isLoggable(BasicLevel.DEBUG))
        logger.log(BasicLevel.DEBUG, "", exc);
      JMSException jmse = new JMSException(exc.getMessage());
      jmse.setLinkedException(exc);
      throw jmse;
    }

    localConnections.addLocalConnection(this);
    try {
      MXWrapper.registerMBean(this, "Joram#" + AgentServer.getServerId(), getMBeanName());
    } catch (Exception e) {
      logger.log(BasicLevel.DEBUG, "registerMBean", e);
    }
  }

  private String getMBeanName() {
    return "type=Connection,mode=local,id=" + identity.getUserName() + "[" + ctx.getKey() + "]";
  }

  public void send(AbstractJmsRequest request) throws Exception {
    if (logger.isLoggable(BasicLevel.DEBUG))
      logger.log(BasicLevel.DEBUG, "LocalConnection.send(" + request + ')');
    ConnectionManager.sendToProxy(proxyId, ctx.getKey(), request, request);
    sentCount++;
  }

  public AbstractJmsReply receive() throws Exception {
    AbstractJmsReply reply = (AbstractJmsReply) ctx.getQueue().get();
    ctx.getQueue().pop();
    receivedCount++;
    return reply;
  }

  public void close() {
    ctx.getQueue().close();
    LocalConnections.getCurrentInstance().removeLocalConnection(this);
    try {
      MXWrapper.unregisterMBean("Joram#" + AgentServer.getServerId(), getMBeanName());
    } catch (Exception e) {
      logger.log(BasicLevel.DEBUG, "unregisterMBean", e);
    }
  }

  public Date getCreationDate() {
    return creationDate;
  }

  public long getReceivedCount() {
    return receivedCount;
  }

  public long getSentCount() {
    return sentCount;
  }

  public String getUserName() {
    return identity.getUserName();
  }

  public void closing() {
    // Nothing to do.
  }
}
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