Twitter con jPOS? Esto si que es innovación !!

/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2008 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.jpos.util;
 
import java.util.Date;
import java.util.Locale;
import java.util.Iterator;
import java.io.IOException;
import java.text.SimpleDateFormat;
import org.jpos.core.Configurable;
import org.jpos.core.Configuration;
import org.jpos.core.ConfigurationException;
import org.jpos.q2.Q2;
import winterwell.jtwitter.*;
 
/**
 * Twitter Listener
 *
 *  requires jtwitter.jar from http://www.winterwell.com/software/jtwitter.php
 *
 *  Sample configuration:
 *
 *  <log-listener class="org.jpos.util.TwitterLogListener">
 *     <property name="twitterUsername" value="paymentsystems" />
 *     <property name="twitterPassword" value="SuperSecretPassword" />
 *     <property name="tags" value="twitter" />
 *     <property name="prefix" value="[jPOS]"/>
 *  </log-listener>
 *
 */
public class TwitterLogListener implements LogListener, Configurable {
    private Configuration   cfg;
    private String          twitterUsername;
    private String          twitterPassword;
    private String          prefix;
    private String          tags;
    private String          twitterMessage;
 
    private int             MAX_MESSAGE_SIZE = 140;
 
    public TwitterLogListener () {
        super();
    }
    public synchronized LogEvent log (LogEvent ev) {
        if (ev.tag != null && tags.indexOf(ev.tag) != -1) {
 
            Twitter twitter = new Twitter(twitterUsername,twitterPassword);
            StringBuilder sb = new StringBuilder();
            if (prefix != null) {
                sb.append (prefix);
                sb.append (' ');
            }
            Iterator iter = ev.payLoad.iterator();
            for (int i=0; iter.hasNext(); i++) {
                if (i>0)
                    sb.append (' ');
                    sb.append (iter.next().toString());
            }
            if (sb.toString().length()>MAX_MESSAGE_SIZE) {
                twitterMessage = sb.toString().substring(0,MAX_MESSAGE_SIZE);
            } else {
                twitterMessage = sb.toString();
            }
 
            try {
                twitter.updateStatus(twitterMessage);
            } catch (TwitterException e) {
                ev.addMessage ("--- TwitterLogListener error ---");
                ev.addMessage (e);
            }
        }
        return ev;
    }
    public void setConfiguration (Configuration cfg)
        throws ConfigurationException
    {
        this.cfg = cfg;
        try {
            twitterUsername = cfg.get ("twitterUsername");
            twitterPassword = cfg.get ("twitterPassword");
            tags     = cfg.get ("tags", "twitter");
            prefix = cfg.get ("prefix", null);
        } catch (Exception e) {
            throw new ConfigurationException (e);
        }
    }
}