Java tutorial
/* * South Face Software * Copyright 2012, South Face Software, Inc. and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package com.sfs.ucm.service; import java.io.Serializable; import java.util.Properties; import java.util.concurrent.Future; import javax.ejb.AsyncResult; import javax.ejb.Asynchronous; import javax.ejb.Stateless; import javax.inject.Inject; import javax.inject.Named; import javax.mail.Address; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.AddressException; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import com.sfs.ucm.controller.AppManager; import com.sfs.ucm.util.Service; /** * Mail Service * * @author lbbisho * */ @Named @Stateless @Service public class MailService implements Serializable { private static final long serialVersionUID = 1L; @Inject private Logger logger; @Inject private AppManager appManager; /** * Send mail message in plain text. Mail host is obtained from instance-specific properties file via AppManager. * * @param fromAddress * @param ccRe * @param toRecipient * @param subject * @param body * @param messageType * - text/plain or text/html * @return status message * @throws IllegalArgumentException */ @Asynchronous public Future<String> sendMessage(final String fromAddress, final String ccRecipient, final String toRecipient, final String subject, final String body, final String messageType) throws IllegalArgumentException { // argument validation if (fromAddress == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined fromAddress"); } if (toRecipient == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined toRecipient"); } if (subject == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined subject"); } if (body == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined body conent"); } if (messageType == null || (!messageType.equals("text/plain") && !messageType.equals("text/html"))) { throw new IllegalArgumentException("sendMessage: Invalid or undefined messageType"); } String status = null; try { Properties props = new Properties(); props.put("mail.smtp.host", appManager.getApplicationProperty("mail.host")); props.put("mail.smtp.port", appManager.getApplicationProperty("mail.port")); Object[] params = new Object[4]; params[0] = (String) subject; params[1] = (String) fromAddress; params[2] = (String) ccRecipient; params[3] = (String) toRecipient; logger.info("Sending message: subject: {}, fromAddress: {}, ccRecipient: {}, toRecipient: {}", params); Session session = Session.getDefaultInstance(props); Message message = new MimeMessage(session); message.setFrom(new InternetAddress(fromAddress)); Address toAddress = new InternetAddress(toRecipient); message.addRecipient(Message.RecipientType.TO, toAddress); if (StringUtils.isNotBlank(ccRecipient)) { Address ccAddress = new InternetAddress(ccRecipient); message.addRecipient(Message.RecipientType.CC, ccAddress); } message.setSubject(subject); message.setContent(body, messageType); Transport.send(message); } catch (AddressException e) { logger.error("sendMessage Address Exception occurred: {}", e.getMessage()); status = "sendMessage Address Exception occurred"; } catch (MessagingException e) { logger.error("sendMessage Messaging Exception occurred: {}", e.getMessage()); status = "sendMessage Messaging Exception occurred"; } return new AsyncResult<String>(status); } /** * Send mail message in plain text. Mail host is obtained from instance-specific properties file via AppManager. * * @param fromAddress * @param recipients * - fully qualified recipient address * @param subject * @param body * @param messageType * - text/plain or text/html * @throws IllegalArgumentException */ @Asynchronous public Future<String> sendMessage(final String fromAddress, final String ccRecipient, final String[] toRecipients, final String subject, final String body, final String messageType) { // argument validation if (fromAddress == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined fromAddress"); } if (toRecipients == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined toRecipients"); } if (subject == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined subject"); } if (body == null) { throw new IllegalArgumentException("sendMessage: Invalid or undefined body conent"); } if (messageType == null || (!messageType.equals("text/plain") && !messageType.equals("text/html"))) { throw new IllegalArgumentException("sendMessage: Invalid or undefined messageType"); } String status = null; try { Properties props = new Properties(); props.put("mail.smtp.host", appManager.getApplicationProperty("mail.host")); props.put("mail.smtp.port", appManager.getApplicationProperty("mail.port")); Object[] params = new Object[4]; params[0] = (String) subject; params[1] = (String) fromAddress; params[2] = (String) ccRecipient; params[3] = (String) StringUtils.join(toRecipients); logger.info("Sending message: subject: {}, fromAddress: {}, ccRecipient: {}, toRecipient: {}", params); Session session = Session.getDefaultInstance(props); Message message = new MimeMessage(session); message.setFrom(new InternetAddress(fromAddress)); Address[] toAddresses = new Address[toRecipients.length]; for (int i = 0; i < toAddresses.length; i++) { toAddresses[i] = new InternetAddress(toRecipients[i]); } message.addRecipients(Message.RecipientType.TO, toAddresses); if (StringUtils.isNotBlank(ccRecipient)) { Address ccAddress = new InternetAddress(ccRecipient); message.addRecipient(Message.RecipientType.CC, ccAddress); } message.setSubject(subject); message.setContent(body, messageType); Transport.send(message); } catch (AddressException e) { logger.error("sendMessage Address Exception occurred: {}", e.getMessage()); status = "sendMessage Address Exception occurred"; } catch (MessagingException e) { logger.error("sendMessage Messaging Exception occurred: {}", e.getMessage()); status = "sendMessage Messaging Exception occurred"; } return new AsyncResult<String>(status); } }