/*
 * JBoss, Home of Professional Open Source
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 (at your option) any later version.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.deployment.remoting;

import java.io.InputStream;
import java.util.Map;

import javax.management.MBeanServer;
import javax.management.MBeanServerInvocationHandler;
import javax.management.ObjectName;

import org.jboss.deployment.services.DeploymentManagerServiceMBean;
import org.jboss.deployment.spi.SerializableTargetModuleID;
import org.jboss.logging.Logger;
import org.jboss.remoting.InvocationRequest;
import org.jboss.remoting.ServerInvoker;
import org.jboss.remoting.callback.InvokerCallbackHandler;
import org.jboss.remoting.stream.StreamInvocationHandler;

/**
 * A remoting StreamInvocationHandler installed as the JSR88 subsystem
 * handler and used by the StreamingTarget implementation. 
 * 
 * @author Scott.Stark@jboss.org
 * @version $Revision: 85945 $
 */
public class DeployHandler implements StreamInvocationHandler
{
   static Logger log = Logger.getLogger(DeployHandler.class);

   private DeploymentManagerServiceMBean deployService;

   public DeploymentManagerServiceMBean getDeployService()
   {
      return deployService;
   }

   public void setDeployService(DeploymentManagerServiceMBean deployService)
   {
      this.deployService = deployService;
   }

   /**
    * Handle a deployService deploy invocation
    * @param request - the remoting invocation
    */
   public Object handleStream(InputStream contentIS, InvocationRequest request)
      throws Throwable
   {
      SerializableTargetModuleID moduleID = (SerializableTargetModuleID) request.getParameter();
      log.debug("handleStream, moduleID: "+moduleID);
      moduleID.setContentIS(contentIS);
      deployService.deploy(moduleID);
      return null;
   }

   public void addListener(InvokerCallbackHandler arg0)
   {      
   }

   /**
    * Handle a deployService invocation other than deploy
    * @param request - the remoting invocation
    */
   public Object invoke(InvocationRequest request) throws Throwable
   {
      String name = request.getParameter().toString();
      Map payload = request.getRequestPayload();
      String url = (String) payload.get("moduleID");
      Object returnValue = null;
      log.debug("invoke, moduleID: "+url+", payload: "+payload);

      if( name.equals("start") )
      {
         deployService.start(url);
      }
      else if( name.equals("stop") )
      {
         deployService.stop(url);
         
      }
      else if( name.equals("undeploy") )
      {
         deployService.undeploy(url);         
      }
      else if( name.equals("getAvailableModules") )
      {
         Integer moduleType = (Integer) payload.get("moduleType");
         SerializableTargetModuleID[] ids = deployService.getAvailableModules(moduleType);
         returnValue = ids;
      }
      return returnValue;
   }

   public void removeListener(InvokerCallbackHandler arg0)
   {
   }

   public void setInvoker(ServerInvoker arg0)
   {
   }

   /**
    * Legacy initialzation of the DeploymentManagerServiceMBean via
    * jmx lookup.
    * TODO: the deployService should be injected.
    */
   public void setMBeanServer(MBeanServer server)
   {
      try
      {
         ObjectName jsr88 = new ObjectName("jboss.management.local:type=JSR88DeploymentManager,name=DefaultManager");
         deployService = (DeploymentManagerServiceMBean)
            MBeanServerInvocationHandler.newProxyInstance(server, jsr88, DeploymentManagerServiceMBean.class, false);
         log.debug("Initialzied DeploymentManagerServiceMBean");
      }
      catch(Exception e)
      {
         log.warn("Failed to lookup DeploymentManagerServiceMBean", e);
      }
   }

}