1   /**
2    * Copyright (c) 2000-2007 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.messageboards.service.jms;
24  
25  import com.liferay.mail.service.MailServiceUtil;
26  import com.liferay.portal.NoSuchUserException;
27  import com.liferay.portal.kernel.mail.MailMessage;
28  import com.liferay.portal.kernel.util.GetterUtil;
29  import com.liferay.portal.kernel.util.StringUtil;
30  import com.liferay.portal.model.Subscription;
31  import com.liferay.portal.model.User;
32  import com.liferay.portal.service.SubscriptionLocalServiceUtil;
33  import com.liferay.portal.service.UserLocalServiceUtil;
34  import com.liferay.portlet.messageboards.model.MBCategory;
35  import com.liferay.portlet.messageboards.model.MBThread;
36  import com.liferay.util.CollectionFactory;
37  
38  import java.util.List;
39  import java.util.Set;
40  
41  import javax.jms.Message;
42  import javax.jms.MessageListener;
43  import javax.jms.ObjectMessage;
44  import javax.jms.Queue;
45  import javax.jms.QueueConnection;
46  import javax.jms.QueueConnectionFactory;
47  import javax.jms.QueueReceiver;
48  import javax.jms.QueueSession;
49  import javax.jms.Session;
50  
51  import javax.mail.internet.InternetAddress;
52  
53  import org.apache.commons.logging.Log;
54  import org.apache.commons.logging.LogFactory;
55  
56  /**
57   * <a href="MBMessageConsumer.java.html"><b><i>View Source</i></b></a>
58   *
59   * @author Brian Wing Shun Chan
60   *
61   */
62  public class MBMessageConsumer implements MessageListener {
63  
64      public void consume() {
65          try {
66              QueueConnectionFactory qcf = MBMessageQCFUtil.getQCF();
67              QueueConnection con = qcf.createQueueConnection();
68  
69              QueueSession session = con.createQueueSession(
70                  false, Session.AUTO_ACKNOWLEDGE);
71              Queue queue = (Queue)MBMessageQueueUtil.getQueue();
72  
73              QueueReceiver subscriber = session.createReceiver(queue);
74  
75              subscriber.setMessageListener(this);
76  
77              con.start();
78          }
79          catch (Exception e) {
80              _log.error(e);
81          }
82      }
83  
84      public void onMessage(Message msg) {
85          try {
86              ObjectMessage objMsg = (ObjectMessage)msg;
87  
88              String[] array = (String[])objMsg.getObject();
89  
90              _onMessage(array);
91          }
92          catch (Exception e) {
93              _log.error("Error sending message board notifications", e);
94          }
95      }
96  
97      private void _onMessage(String[] array) throws Exception {
98          long companyId = GetterUtil.getLong(array[0]);
99          long userId = GetterUtil.getLong(array[1]);
100         String[] categoryIds = StringUtil.split(array[2]);
101         String threadId = array[3];
102         String fromName = array[4];
103         String fromAddress = array[5];
104         String subject = array[6];
105         String body = array[7];
106         String replyToAddress = array[8];
107         String messageId = array[9];
108         String inReplyTo = array[10];
109 
110         Set sent = CollectionFactory.getHashSet();
111 
112         if (_log.isInfoEnabled()) {
113             _log.info(
114                 "Sending notifications for {messageId=" + messageId +
115                     ", threadId=" + threadId + ", categoryIds=" + array[2] +
116                         "}");
117         }
118 
119         // Threads
120 
121         List subscriptions = SubscriptionLocalServiceUtil.getSubscriptions(
122             companyId, MBThread.class.getName(), GetterUtil.getLong(threadId));
123 
124         _sendEmail(
125             userId, fromName, fromAddress, subject, body, subscriptions, sent,
126             replyToAddress, messageId, inReplyTo);
127 
128         // Categories
129 
130         for (int i = 0; i < categoryIds.length; i++) {
131             subscriptions = SubscriptionLocalServiceUtil.getSubscriptions(
132                 companyId, MBCategory.class.getName(),
133                 GetterUtil.getLong(categoryIds[i]));
134 
135             _sendEmail(
136                 userId, fromName, fromAddress, subject, body, subscriptions,
137                 sent, replyToAddress, messageId, inReplyTo);
138         }
139 
140         if (_log.isInfoEnabled()) {
141             _log.info("Finished sending notifications");
142         }
143     }
144 
145     private void _sendEmail(
146             long userId, String fromName, String fromAddress, String subject,
147             String body, List subscriptions, Set sent, String replyToAddress,
148             String messageId, String inReplyTo)
149         throws Exception {
150 
151         for (int i = 0; i < subscriptions.size(); i++) {
152             Subscription subscription = (Subscription)subscriptions.get(i);
153 
154             Long subscribedUserId = new Long(subscription.getUserId());
155 
156             if (sent.contains(subscribedUserId)) {
157                 if (_log.isDebugEnabled()) {
158                     _log.debug(
159                         "Do not send a duplicate email to user " +
160                             subscribedUserId);
161                 }
162 
163                 continue;
164             }
165             else {
166                 if (_log.isDebugEnabled()) {
167                     _log.debug(
168                         "Add user " + subscribedUserId +
169                             " to the list of users who have received an email");
170                 }
171 
172                 sent.add(subscribedUserId);
173             }
174 
175             User user = null;
176 
177             try {
178                 user = UserLocalServiceUtil.getUserById(
179                     subscription.getUserId());
180             }
181             catch (NoSuchUserException nsue) {
182                 if (_log.isInfoEnabled()) {
183                     _log.info(
184                         "Subscription " + subscription.getSubscriptionId() +
185                             " is stale and will be deleted");
186                 }
187 
188                 SubscriptionLocalServiceUtil.deleteSubscription(
189                     subscription.getSubscriptionId());
190 
191                 continue;
192             }
193 
194             try {
195                 InternetAddress from = new InternetAddress(
196                     fromAddress, fromName);
197 
198                 InternetAddress to = new InternetAddress(
199                     user.getEmailAddress(), user.getFullName());
200 
201                 String curSubject = StringUtil.replace(
202                     subject,
203                     new String[] {
204                         "[$TO_ADDRESS$]",
205                         "[$TO_NAME$]"
206                     },
207                     new String[] {
208                         user.getFullName(),
209                         user.getEmailAddress()
210                     });
211 
212                 String curBody = StringUtil.replace(
213                     body,
214                     new String[] {
215                         "[$TO_ADDRESS$]",
216                         "[$TO_NAME$]"
217                     },
218                     new String[] {
219                         user.getFullName(),
220                         user.getEmailAddress()
221                     });
222 
223                 InternetAddress replyTo = new InternetAddress(
224                     replyToAddress, replyToAddress);
225 
226                 MailMessage message = new MailMessage(
227                     from, to, curSubject, curBody, false);
228 
229                 message.setReplyTo(new InternetAddress[]{replyTo});
230                 message.setMessageId(messageId);
231                 message.setInReplyTo(inReplyTo);
232 
233                 MailServiceUtil.sendEmail(message);
234             }
235             catch (Exception e) {
236                 _log.error(e);
237             }
238         }
239     }
240 
241     private static Log _log = LogFactory.getLog(MBMessageConsumer.class);
242 
243 }