mailutils.java

一个工作流设计及定义的系统,可以直接与数据库结合进行系统工作流程的定义及应用.

/*
 * Copyright (c) 2005, John Mettraux, OpenWFE.org
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 * . Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.  
 * 
 * . Redistributions in binary form must reproduce the above copyright notice, 
 *   this list of conditions and the following disclaimer in the documentation 
 *   and/or other materials provided with the distribution.
 * 
 * . Neither the name of the "OpenWFE" nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id: MailUtils.java,v 1.3 2005/07/19 16:24:37 jmettraux Exp $
 */

//
// MailUtils.java
//
// [e-mail]
//
// generated with 
// jtmpl 1.1.01 2004/05/19 ([e-mail])
//

package openwfe.org.mail;

import javax.mail.Message;
import javax.mail.Message.RecipientType;
import javax.mail.Session;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.AddressException;

import openwfe.org.MapUtils;


/**
 * Some static methods for Smtp / Pop / Imap...
 *
 * <p><font size=2>CVS Info :
 * <br>$Author: jmettraux $
 * <br>$Id: MailUtils.java,v 1.3 2005/07/19 16:24:37 jmettraux Exp $ </font>
 *
 * @author [e-mail]
 */
public abstract class MailUtils
{

    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
        .getLogger(MailUtils.class.getName());

    //
    // CONSTANTS & CO

    /**
     * Use this parameter ('smtp-host') to tell the participant which 
     * mail server it should use to send the notification email
     */
    public final static String P_SMTP_SERVER
        = "smtp-server";

    /**
     * Use this parameter ('smtp-port') to tell the participant which port
     * of the mail server it should use to send the notification email
     */
    public final static String P_SMTP_PORT
        = "smtp-port";

    /**
     * Use this parameter ('mail-from') to indicate who should be the
     * apparent author of the notification email
     */
    public final static String P_MAIL_FROM
        = "mail-from";

    /* *
     * Use this participant parameter named 'mail-encoding' to set the 
     * encoding to use for generating emails.
     * By default, iso-8859-1 is used.
     * /
    public final static String P_MAIL_ENCODING
        = "mail-encoding";

    /*
     * By default, emails are encoded using iso-8859-1
     * /
    private final static String DEFAULT_MAIL_ENCODING
        = "iso-8859-1";
     */

    //
    // METHODS

    /**
     * Gets a mail session with the given [OpenWFE service] params.
     */
    public static Session getMailSession (final java.util.Map params)
    {
        final java.util.Properties props = new java.util.Properties();

        props.put
            ("mail.smtp.host", 
             MapUtils.getAsString(params, P_SMTP_SERVER, "127.0.0.1"));

        props.put
            ("mail.smtp.port",
             MapUtils.getAsString(params, P_SMTP_PORT, "25"));

        log.debug
            ("getMailSession() smtp : "+
             props.get("mail.smtp.host")+":"+props.get("mail.smtp.port"));

        return Session.getDefaultInstance(props, null);
    }

    /* *
     * create a MimeMessage instance with the given [OpenWFE service] params
     * for configuring the mail session.
     * /
    public static MimeMessage createMessage (final java.util.Map params)
        throws MessagingException
    {
        final MimeMessage m = new MimeMessage(getMailSession(params));

        return m;
    }
     */

    /**
     * Extracts from the params the 'mail-from' parameter.
     * Returns null if this parameter is not present.
     */
    public static InternetAddress getMailFrom (final java.util.Map params)
        throws MessagingException
    {
        final String mailFrom = MapUtils.getAsString(params, P_MAIL_FROM);

        if (mailFrom == null) return null;

        return new InternetAddress(mailFrom);
    }

    /**
     * Given a message and the params, will look in the params for 'mail-from'
     * and if present, will set it as the 'from' of the message.
     */
    public static void setMailFrom 
        (final Message m, final java.util.Map params)
    throws 
        MessagingException
    {
        final InternetAddress a = getMailFrom(params);

        if (a != null) m.setFrom(a);
    }

    /**
     * Given a recipient list (email addresses separated by commas), adds them
     * to the message.
     */
    public static void addRecipients 
        (final Message m, 
         final RecipientType recipientType, 
         final String recipientList)
    throws
        MessagingException
    {
        if (recipientList == null) return;

        final String[] ss = recipientList.split(", *");

        for (int i=0; i<ss.length; i++)
            m.addRecipient(recipientType, new InternetAddress(ss[i]));
    }

}