1 /**
2 * This file Copyright (c) 2003-2010 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.mail.handlers;
35
36 import info.magnolia.module.mail.templates.MgnlEmail;
37
38 import java.util.ArrayList;
39 import java.util.Arrays;
40
41 import javax.mail.Transport;
42
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
45
46
47 /**
48 * This class is meant to allow async emails ... The mail is posted and send. Note that mail success or failure is only
49 * displayed in the logs. Date: Mar 31, 2006 Time: 5:51:38 PM
50 * @author <a href="mailto:niko@macnica.com">Nicolas Modrzyk</a>
51 */
52 public class ThreadedMailHandler implements MgnlMailHandler {
53
54 Logger log = LoggerFactory.getLogger(ThreadedMailHandler.class);
55
56 ArrayList<MgnlEmail> emails = new ArrayList<MgnlEmail>();
57
58 MailThread thread; // can be replaced with a pool of thread someday
59
60 private ThreadedMailHandler() {
61 this.thread = new MailThread();
62 Thread bb = new Thread(this.thread);
63 bb.start();
64 }
65
66 protected void finalize() throws Throwable {
67 this.thread.setStop(true);
68 super.finalize();
69 }
70
71 /**
72 * Prepare the email (format it) and send it.
73 * @param email the email to send
74 * @throws Exception if fails
75 */
76 public void prepareAndSendMail(MgnlEmail email) throws Exception {
77 email.setBodyNotSetFlag(true);
78 synchronized (this) {
79 this.emails.add(email);
80 }
81 this.thread.notify();
82 }
83
84 /**
85 * Send the email as is, without touching it.
86 * @param email the email to send
87 * @throws Exception if fails
88 */
89 public void sendMail(MgnlEmail email) throws Exception {
90 synchronized (this) {
91 this.emails.add(email);
92 }
93 this.thread.notify();
94 }
95
96 /**
97 * Thread doing all the job for sending emails and formatting the body.
98 */
99 class MailThread implements Runnable {
100
101 boolean stop = false;
102
103 public void run() {
104 while (!this.stop) {
105 if (ThreadedMailHandler.this.emails.size() == 0) { // nothing to do just sleep
106 synchronized (this) {
107 try {
108 wait();
109 }
110 catch (InterruptedException e) {
111 ThreadedMailHandler.this.log.info("Mail Thread was interrupted");
112 }
113 }
114 }
115 else {
116 MgnlEmail email = null;
117 synchronized (this) {
118 if (ThreadedMailHandler.this.emails.size() > 0) {
119 email = ThreadedMailHandler.this.emails.remove(0);
120 }
121 }
122 if (email != null) {
123 try {
124 if (email.isBodyNotSetFlag()) {
125 // email.setBody();
126 }
127 try {
128 Transport.send(email);
129 ThreadedMailHandler.this.log.info("Mail has been sent to: ["
130 + Arrays.asList(email.getAllRecipients())
131 + "]");
132 }
133 catch (Exception e) {
134 ThreadedMailHandler.this.log.error("Email to: ["
135 + Arrays.asList(email.getAllRecipients())
136 + "] was not sent because of an error", e);
137 }
138 }
139 catch (Exception e) {
140 e.printStackTrace();
141 }
142 }
143 }
144
145 }
146 }
147
148 public boolean isStop() {
149 return this.stop;
150 }
151
152 public void setStop(boolean stop) {
153 this.stop = stop;
154 this.notify();
155 }
156 }
157 }