2 * Copyright 2008 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.web;
19 import javax.mail.Authenticator;
20 import javax.servlet.ServletContext;
21 import javax.servlet.ServletContextEvent;
22 import javax.servlet.ServletContextListener;
23 import java.util.Timer;
28 public final class DecodeEmailListener implements ServletContextListener {
30 private static final long EMAIL_CHECK_INTERVAL = 5L * 60 * 1000;
32 private Timer emailTimer;
34 public void contextInitialized(ServletContextEvent event) {
35 ServletContext context = event.getServletContext();
36 String emailAddress = context.getInitParameter("emailAddress");
37 String emailPassword = context.getInitParameter("emailPassword");
38 if (emailAddress == null || emailPassword == null) {
39 throw new IllegalArgumentException("emailAddress or emailPassword not specified");
41 Authenticator emailAuthenticator = new EmailAuthenticator(emailAddress, emailPassword);
42 emailTimer = new Timer("Email decoder timer", true);
43 emailTimer.schedule(new DecodeEmailTask(emailAddress, emailAuthenticator), 0L, EMAIL_CHECK_INTERVAL);
46 public void contextDestroyed(ServletContextEvent event) {