archive/releng.builder/tools/monitor/src/org/eclipse/wtp/releng/monitor/WtpMailer.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wtp.releng.monitor;

/**
 * A Class that sends build related email messages.  host, sender, recipient and
 * build related information set in monitor.properties
 */

import java.util.Properties;
import java.util.StringTokenizer;

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;

public class WtpMailer {

	// flag that determines whether or not to send mail
	boolean sendMail = true;

	// the mail host
	String host = "127.0.0.1";

	// the mail from
	String from = "";

	// the mail recipeints
	String recipientsList = "";
	
	// the email subject prefix
	String prefix = "";
	
	//build label
	String buildLabel = "";

	//convert the comma separated list of email addressed into an array of Address objects
	private Address[] getAddresses() {
		int i = 0;
		StringTokenizer recipients = new StringTokenizer(recipientsList, ",");
		Address[] addresses = new Address[recipients.countTokens()];

		while (recipients.hasMoreTokens()) {
			try {
				addresses[i++] = new InternetAddress(recipients.nextToken());
			} catch (AddressException e) {
				System.out.println("Unable to create address");
			}
		}
		return addresses;
	}

	public WtpMailer(String host, String sender, String recpst, String prefix, String buildLabel ){
		if(host == null || host.length() == 0 || host.indexOf(" ") >= 0)
			sendMail=false;
		this.host = host;
		this.from = sender;
		this.recipientsList = recpst;
		this.prefix = prefix;
		this.buildLabel = buildLabel;
	}



	public void sendMessage(String aSubject, String aMessage) {
		if (aSubject == null || aMessage == null || sendMail == false){
			printEmailFailureNotice(aSubject,aMessage);
		}

		// Get system properties
		Properties props = System.getProperties();

		// Setup mail server
		props.put("mail.smtp.host", host);

		// Get session
		Session session = Session.getDefaultInstance(props);

		MimeMessage message = new MimeMessage(session);

		try {
			
			// Set the from address
			message.setFrom(new InternetAddress(from));

			// Set the to address
			message.addRecipients(Message.RecipientType.TO, getAddresses());

			// Set the subject
			message.setSubject(prefix + "[" + buildLabel +"] - "+ aSubject);

			// Set the content
			message.setContent(
				"<a href=\"http://download.eclipse.org/webtools/downloads/drops/"+buildLabel+"\">Build is ready at: "
					+ buildLabel +"</a>\n\n"
					+ aMessage, "text/html");

			// Send message
			Transport.send(message);

		} catch (AddressException e) {
			e.printStackTrace();
		} catch (MessagingException e) {
			e.printStackTrace();
		}
	}

	private void printEmailFailureNotice(String aSubject, String aMessage){
		System.out.println("Email failed.  Settings:");
		System.out.println("\nhost="+host+"\nsender="+from+"\nrecipients="+recipientsList);
		System.out.println("\nSubject="+aSubject+"\nMessage="+aMessage);
		return;
	}

}