1 /**
2 * This file Copyright (c) 2003-2011 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 @Override
67 protected void finalize() throws Throwable {
68 this.thread.setStop(true);
69 super.finalize();
70 }
71
72 /**
73 * Prepare the email (format it) and send it.
74 * @param email the email to send
75 * @throws Exception if fails
76 */
77 @Override
78 public void prepareAndSendMail(MgnlEmail email) throws Exception {
79 email.setBodyNotSetFlag(true);
80 synchronized (this) {
81 this.emails.add(email);
82 }
83 this.thread.notify();
84 }
85
86 /**
87 * Send the email as is, without touching it.
88 * @param email the email to send
89 * @throws Exception if fails
90 */
91 @Override
92 public void sendMail(MgnlEmail email) throws Exception {
93 synchronized (this) {
94 this.emails.add(email);
95 }
96 this.thread.notify();
97 }
98
99 /**
100 * Thread doing all the job for sending emails and formatting the body.
101 */
102 class MailThread implements Runnable {
103
104 boolean stop = false;
105
106 @Override
107 public void run() {
108 while (!this.stop) {
109 if (ThreadedMailHandler.this.emails.size() == 0) { // nothing to do just sleep
110 synchronized (this) {
111 try {
112 wait();
113 }
114 catch (InterruptedException e) {
115 ThreadedMailHandler.this.log.info("Mail Thread was interrupted");
116 }
117 }
118 }
119 else {
120 MgnlEmail email = null;
121 synchronized (this) {
122 if (ThreadedMailHandler.this.emails.size() > 0) {
123 email = ThreadedMailHandler.this.emails.remove(0);
124 }
125 }
126 if (email != null) {
127 try {
128 if (email.isBodyNotSetFlag()) {
129 // email.setBody();
130 }
131 try {
132 Transport.send(email);
133 ThreadedMailHandler.this.log.info("Mail has been sent to: ["
134 + Arrays.asList(email.getAllRecipients())
135 + "]");
136 }
137 catch (Exception e) {
138 ThreadedMailHandler.this.log.error("Email to: ["
139 + Arrays.asList(email.getAllRecipients())
140 + "] was not sent because of an error", e);
141 }
142 }
143 catch (Exception e) {
144 e.printStackTrace();
145 }
146 }
147 }
148
149 }
150 }
151
152 public boolean isStop() {
153 return this.stop;
154 }
155
156 public void setStop(boolean stop) {
157 this.stop = stop;
158 this.notify();
159 }
160 }
161 }