org.infoglue.common.util.mail.MailServiceFactory.java Source code

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Here is the source code for org.infoglue.common.util.mail.MailServiceFactory.java

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/* ===============================================================================
 *
 * Part of the InfoGlue Content Management Platform (www.infoglue.org)
 *
 * ===============================================================================
 *
 *  Copyright (C)
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 2, as published by the
 * Free Software Foundation. See the file LICENSE.html for more information.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
 * Place, Suite 330 / Boston, MA 02111-1307 / USA.
 *
 * ===============================================================================
 */

package org.infoglue.common.util.mail;

import java.util.Properties;

import javax.mail.Session;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.infoglue.calendar.controllers.EntryController;
import org.infoglue.common.util.PropertyHelper;

/**
 * Factory for creating MailService objects.
 *
 * @author Mattias Bogeblad
 */

public class MailServiceFactory {
    private static Log log = LogFactory.getLog(MailServiceFactory.class);

    // The singleton mail session; shared by all MailService objects.
    private static Session session;

    /**
        * Returns a MailService object.
      */

    public static synchronized MailService getService() throws Exception {
        if (session == null) {
            session = initializeSession();
            //session.setDebug(true);
        }
        log.info("Session:" + session.getProperties());

        return new MailService(session);
    }

    /**
        * Static class; don't allow instantiation.
        */

    private MailServiceFactory() {
    }

    /**
    * Initializes and constructs the shared mail session.
    * Whenever a <code>mail.smtp.auth</code> property key has a <cdoe>true</code>
    * value - which means that connection needs to be authenticated, keys
    * <code>mail.smtp.user</code> and <code>mail.smtp.password</code> are
    * used as principal information to be used to authenticate connection to
    * specified SMTP server.
    * @return SMTP session
    */
    private static Session initializeSession() throws Exception {
        Properties properties = PropertyHelper.getProperties();
        properties.put("mail.smtp.connectiontimeout", "10000");
        properties.put("mail.smtp.timeout", "10000");

        Properties props = new Properties();

        boolean needsAuthentication = false;
        try {
            needsAuthentication = new Boolean((String) properties.get("mail.smtp.auth")).booleanValue();
        } catch (Exception ex) {
            needsAuthentication = false;
        }

        if (needsAuthentication) {
            final String uName = (String) (String) properties.get("mail.smtp.user");
            final String uPass = (String) (String) properties.get("mail.smtp.password");

            javax.mail.Authenticator authenticator = new javax.mail.Authenticator() {
                protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
                    return new javax.mail.PasswordAuthentication(uName, uPass);
                }
            };

            return Session.getInstance(properties, authenticator);
        } else {
            return Session.getInstance(properties);
        }
    }
}