messageevent.java

java编的邮件客户端

package mfetcher;

// MessageEvent

//
// Copyright (C) 1999 John Mettraux
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation.
//
// This program 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 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.
//

/**
 * MailMessage content and important infos (sender and subject)
 * Commands are separated from comments.
 *
 * @author John Mettraux
 * @version 1.0
 */

public class MessageEvent
{
//
// DATAS

    private String from;
    private String subject;
    private String to;
    private String[] messageBody;
    private final static String UNKNOWN = "<unknown>";
    
//
// CONSTRUCTORS

    /**
     * Instantiates a MessageEvent by building it from a raw array of Strings
     *
     * param message The mail message as an array of lines
     */

    public MessageEvent (String[] message)
    {
        from = UNKNOWN;
        subject = UNKNOWN;
        to = UNKNOWN;
        
        for (int i=0; i<message.length; i++) {
            String line = message[i].toLowerCase();
            if (line.startsWith("from: ")) {
                if (this.from == UNKNOWN)
                    this.from = message[i].substring(6);
            }
            else if (line.startsWith("subject: ")) {
                if (this.subject == UNKNOWN)
                    this.subject = message[i].substring(9);
            }
            else if (line.startsWith("to: ")) {
                if (this.to == UNKNOWN)
                    this.to = message[i].substring(4);
            }
        }
        
        messageBody = new String[message.length];
        
        for (int i=0; i<message.length; i++)
            messageBody[i] = message[i];
    }

//
// METHODS

    /**
     * Returns the sender field of the mail message
     *
     * @return String
     */

    public String getFrom () { return from; }

    /**
     * Returns the subject field of the mail message
     *
     * @return String
     */
    
    public String getSubject () { return subject; }
   
    /**
     * Returns the to field of the mail message
     *
     * @return String
     */

    public String getTo () { return to; }

    /**
     * Returns the message body in the form of an array of line
     *
     * @return String[]
     */

    public String[] getMessageBody () { return messageBody; }
}