/*
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.exoplatform.services.remote.group.impl;
import org.exoplatform.container.component.ComponentPlugin;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.container.xml.ValuesParam;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.remote.group.CommunicationService;
import org.exoplatform.services.remote.group.CommunicationServiceMonitor;
import org.exoplatform.services.remote.group.MemberInfo;
import org.exoplatform.services.remote.group.Message;
import org.exoplatform.services.remote.group.MessageHandler;
import org.exoplatform.services.remote.group.PingResult;
import org.exoplatform.services.remote.group.Response;
import org.exoplatform.services.remote.group.ResultHandler;
import org.jgroups.Address;
import org.jgroups.JChannel;
import org.jgroups.View;
import org.jgroups.blocks.GroupRequest;
import org.jgroups.blocks.MessageDispatcher;
import org.jgroups.util.Rsp;
import org.jgroups.util.RspList;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Vector;
/**
* @author Tuan Nguyen (tuan08@users.sourceforge.net)
* @since Feb 21, 2005
* @version $Id: CommunicationServiceImpl.java 5799 2006-05-28 17:55:42Z geaz $
*/
@Deprecated
public class CommunicationServiceImpl implements CommunicationService
{
private String properties_;
private JChannel channel_;
private MessageDispatcher mdispatcher_;
private RequestHandlerImpl requestHandler_;
private CommunicationChannelListener channelListener_ = new CommunicationChannelListener();
private Log LOG = ExoLogger.getLogger("exo.kernel.component.remote.CommunicationServiceImpl");
public CommunicationServiceImpl(InitParams confParams) throws Exception
{
ValuesParam param = confParams.getValuesParam("jgroups.channel.properties");
List values = param.getValues();
StringBuffer b = new StringBuffer();
for (int i = 0; i < values.size(); i++)
{
b.append((String)values.get(i));
if (i != values.size() - 1)
{
b.append(":");
}
}
properties_ = b.toString();
configure(properties_);
}
public void configure(String props) throws Exception
{
channel_ = new JChannel(props);
requestHandler_ = new RequestHandlerImpl();
mdispatcher_ = new MessageDispatcher(channel_, null, null, requestHandler_);
channel_.setChannelListener(channelListener_);
channel_.connect("Portal");
}
synchronized public void addPlugin(ComponentPlugin plugin)
{
MessageHandler handler = (MessageHandler)plugin;
handler.init(this);
requestHandler_.registerMessageHandler(handler);
}
public ComponentPlugin removePlugin(String name)
{
throw new RuntimeException("this method is not supported");
}
public Collection getPlugins()
{
throw new RuntimeException("");
}
public Message createMessage(String targetHandler)
{
MessageImpl m = new MessageImpl();
m.setTargetHandler(targetHandler);
return m;
}
synchronized public Object send(MemberInfo member, Message message) throws Exception
{
Address dest = Util.findAddress(channel_, member);
if (dest == null)
throw new Exception("Cannot find the member: " + member.getIpAddress());
org.jgroups.Message jmessage = new org.jgroups.Message(dest, null, message);
Object result = mdispatcher_.sendMessage(jmessage, GroupRequest.GET_ALL, 0);
return result;
}
synchronized public void broadcast(Message message, boolean include) throws Exception
{
Vector members = null;
if (!include)
members = getMembersExcludeMe();
org.jgroups.Message jmessage = new org.jgroups.Message(null, null, message);
mdispatcher_.castMessage(members, jmessage, GroupRequest.GET_NONE, 0);
}
synchronized public void broadcast(Message message, ResultHandler handler, boolean include) throws Exception
{
Vector members = null;
if (!include)
members = getMembersExcludeMe();
org.jgroups.Message jmessage = new org.jgroups.Message(null, null, message);
RspList res = mdispatcher_.castMessage(members, jmessage, GroupRequest.GET_ALL, 0);
Response response = new Response();
List list = res.getResults();
for (int i = 0; i < list.size(); i++)
{
Rsp rsp = (Rsp)list.get(i);
response.populate(rsp);
handler.handleResponse(response);
}
}
synchronized public PingResult ping(MemberInfo member, String message) throws Exception
{
Address dest = Util.findAddress(channel_, member);
if (dest == null)
throw new Exception("Cannot find the member: " + member.getIpAddress());
Message pingMesg = createMessage(PingMessageHandler.IDENTIFIER);
pingMesg.setMessage(message);
org.jgroups.Message jmessage = new org.jgroups.Message(dest, null, pingMesg);
Object result = mdispatcher_.sendMessage(jmessage, GroupRequest.GET_ALL, 0);
PingResult p = new PingResult(member, (String)result);
return p;
}
synchronized public List pingAll(String message) throws Exception
{
Message pingMesg = createMessage(PingMessageHandler.IDENTIFIER);
pingMesg.setMessage(message);
org.jgroups.Message jmessage = new org.jgroups.Message(null, null, pingMesg);
RspList res = mdispatcher_.castMessage(null, jmessage, GroupRequest.GET_ALL, 0);
List results = new ArrayList();
for (int i = 0; i < res.size(); i++)
{
Rsp rsp = (Rsp)res.elementAt(i);
PingResult result = new PingResult(Util.createMemberInfo(rsp.getSender()), (String)rsp.getValue());
results.add(result);
}
return results;
}
public CommunicationServiceMonitor getCommunicationServiceMonitor(MemberInfo info) throws Exception
{
if (info == null)
{
info = Util.createMemberInfo(channel_.getView().getCreator());
CommunicationServiceMonitor monitor =
new CommunicationServiceMonitor(requestHandler_.getMessageHandlerMonitors(), info);
return monitor;
}
Message message = createMessage(GetCommunicationMonitorHandler.IDENTIFIER);
CommunicationServiceMonitor monitor = (CommunicationServiceMonitor)send(info, message);
return monitor;
}
public List getMembersInfo()
{
List list = new ArrayList();
View view = channel_.getView();
Vector members = view.getMembers();
for (int i = 0; i < members.size(); i++)
{
Object member = members.get(i);
list.add(Util.createMemberInfo(member));
}
return list;
}
public Vector getMembersExcludeMe()
{
View view = channel_.getView();
Address addr = view.getCreator();
Vector members = view.getMembers();
for (int i = 0; i < members.size(); i++)
{
Object member = members.get(i);
if (member.equals(addr))
{
members.remove(i);
return members;
}
}
return members;
}
public String getInfo()
{
StringBuffer b = new StringBuffer();
List members = getMembersInfo();
for (int i = 0; i < members.size(); i++)
{
MemberInfo addr = (MemberInfo)members.get(i);
b.append("Name: " + addr.getHostName()).append("; Address " + addr.getIpAddress()).append(
"; Port " + addr.getPort()).append("\n");
}
return b.toString();
}
}