001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.liveusers.messaging;
016    
017    import com.liferay.portal.kernel.cluster.ClusterExecutorUtil;
018    import com.liferay.portal.kernel.cluster.ClusterNodeResponse;
019    import com.liferay.portal.kernel.cluster.ClusterNodeResponses;
020    import com.liferay.portal.kernel.cluster.ClusterRequest;
021    import com.liferay.portal.kernel.cluster.FutureClusterResponses;
022    import com.liferay.portal.kernel.json.JSONFactoryUtil;
023    import com.liferay.portal.kernel.json.JSONObject;
024    import com.liferay.portal.kernel.messaging.BaseMessageListener;
025    import com.liferay.portal.kernel.messaging.Message;
026    import com.liferay.portal.kernel.util.MethodHandler;
027    import com.liferay.portal.kernel.util.MethodKey;
028    import com.liferay.portal.liveusers.LiveUsers;
029    
030    import java.util.Map;
031    import java.util.Set;
032    import java.util.concurrent.TimeUnit;
033    
034    /**
035     * @author Brian Wing Shun Chan
036     * @author Amos Fong
037     */
038    public class LiveUsersMessageListener extends BaseMessageListener {
039    
040            protected void doCommandAddClusterNode(JSONObject jsonObject)
041                    throws Exception {
042    
043                    String clusterNodeId = jsonObject.getString("clusterNodeId");
044    
045                    ClusterRequest clusterRequest = ClusterRequest.createUnicastRequest(
046                            _getLocalClusterUsersMethodHandler, clusterNodeId);
047    
048                    FutureClusterResponses futureClusterResponses =
049                            ClusterExecutorUtil.execute(clusterRequest);
050    
051                    ClusterNodeResponses clusterNodeResponses = futureClusterResponses.get(
052                            20000, TimeUnit.MILLISECONDS);
053    
054                    ClusterNodeResponse clusterNodeResponse =
055                            clusterNodeResponses.getClusterResponse(clusterNodeId);
056    
057                    Object result = clusterNodeResponse.getResult();
058    
059                    if (result == null) {
060                            return;
061                    }
062    
063                    Map<Long, Map<Long, Set<String>>> clusterUsers =
064                            (Map<Long, Map<Long, Set<String>>>)result;
065    
066                    LiveUsers.addClusterNode(clusterNodeId, clusterUsers);
067            }
068    
069            protected void doCommandRemoveClusterNode(JSONObject jsonObject)
070                    throws Exception {
071    
072                    String clusterNodeId = jsonObject.getString("clusterNodeId");
073    
074                    LiveUsers.removeClusterNode(clusterNodeId);
075            }
076    
077            protected void doCommandSignIn(JSONObject jsonObject) throws Exception {
078                    String clusterNodeId = jsonObject.getString("clusterNodeId");
079                    long companyId = jsonObject.getLong("companyId");
080                    long userId = jsonObject.getLong("userId");
081                    String sessionId = jsonObject.getString("sessionId");
082                    String remoteAddr = jsonObject.getString("remoteAddr");
083                    String remoteHost = jsonObject.getString("remoteHost");
084                    String userAgent = jsonObject.getString("userAgent");
085    
086                    LiveUsers.signIn(
087                            clusterNodeId, companyId, userId, sessionId, remoteAddr, remoteHost,
088                            userAgent);
089            }
090    
091            protected void doCommandSignOut(JSONObject jsonObject) throws Exception {
092                    String clusterNodeId = jsonObject.getString("clusterNodeId");
093                    long companyId = jsonObject.getLong("companyId");
094                    long userId = jsonObject.getLong("userId");
095                    String sessionId = jsonObject.getString("sessionId");
096    
097                    LiveUsers.signOut(clusterNodeId, companyId, userId, sessionId);
098            }
099    
100            @Override
101            protected void doReceive(Message message) throws Exception {
102                    String payload = (String)message.getPayload();
103    
104                    JSONObject jsonObject = JSONFactoryUtil.createJSONObject(payload);
105    
106                    String command = jsonObject.getString("command");
107    
108                    if (command.equals("addClusterNode")) {
109                            doCommandAddClusterNode(jsonObject);
110                    }
111                    else if (command.equals("removeClusterNode")) {
112                            doCommandRemoveClusterNode(jsonObject);
113                    }
114                    else if (command.equals("signIn")) {
115                            doCommandSignIn(jsonObject);
116                    }
117                    else if (command.equals("signOut")) {
118                            doCommandSignOut(jsonObject);
119                    }
120            }
121    
122            private static MethodHandler _getLocalClusterUsersMethodHandler =
123                    new MethodHandler(
124                            new MethodKey(LiveUsers.class.getName(), "getLocalClusterUsers"));
125    
126    }