Version.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.tools.sip.balancer;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.apache.log4j.Logger;

public class Version {
	protected static final String RELEASE_REVISION = "release.revision";
	protected static final String RELEASE_DATE = "release.date";
	protected static final String RELEASE_NAME = "release.name";
	protected static final String RELEASE_VERSION = "release.version";
	protected static final String STATISTICS_SERVER = "statistics.server";
	protected static final String DEFAULT_STATISTICS_SERVER = "https://statistics.restcomm.com/rest/";
	private static Logger logger = Logger.getLogger(Version.class);
	public static void printVersion() {
		if(logger.isInfoEnabled()) {
			Properties releaseProperties = new Properties();
			try {
				InputStream in = BalancerRunner.class.getResourceAsStream("release.properties");
				if(in != null) {
					releaseProperties.load(in);
					in.close();
					String releaseVersion = releaseProperties.getProperty(RELEASE_VERSION);
					String releaseName = releaseProperties.getProperty(RELEASE_NAME);
					String releaseDate = releaseProperties.getProperty(RELEASE_DATE);
					String releaseRevision = releaseProperties.getProperty(RELEASE_REVISION);
					String releaseDisclaimer = releaseProperties.getProperty("release.disclaimer");
					if(releaseVersion != null) {
						// Follow the EAP Convention 
						// Release ID: JBoss [EAP] 5.0.1 (build: SVNTag=JBPAPP_5_0_1 date=201003301050)
						logger.info("Release ID: (" + releaseName + ") Load Balancer " + releaseVersion + " (build: Git Hash=" + releaseRevision + " date=" + releaseDate + ")");
						logger.info(releaseName + " Load Balancer " + releaseVersion + " (build: Git Hash=" + releaseRevision + " date=" + releaseDate + ") Started.");
					} else {
						logger.warn("Unable to extract the version of Restcomm Load Balancer currently running");
					}
					if(releaseDisclaimer != null) {
						logger.info(releaseDisclaimer);
					}					
				} else {
					logger.warn("Unable to extract the version of Restcomm Load Balancer currently running");
				}
			} catch (IOException e) {
				logger.warn("Unable to extract the version of Restcomm Load Balancer currently running", e);
			}		
		}
	}
	
	public static String getVersion() {
		Properties releaseProperties = new Properties();
		try {
			InputStream in = BalancerRunner.class.getResourceAsStream("release.properties");
			if(in != null) {
				releaseProperties.load(in);
				in.close();
				String releaseVersion = releaseProperties.getProperty(RELEASE_VERSION);
				String releaseName = releaseProperties.getProperty(RELEASE_NAME);
				String releaseDate = releaseProperties.getProperty(RELEASE_DATE);
				String releaseRevision = releaseProperties.getProperty(RELEASE_REVISION);

				return "Release ID: (" + releaseName + ") Load Balancer " + releaseVersion + " (build: Git Hash=" + releaseRevision + " date=" + releaseDate + ")";
			}
		} catch (Exception e) {
			logger.warn("Unable to extract the version of Restcomm Load Balancer currently running", e);
		}	
		return null;
	}
	
	public static String getVersionProperty(String property) {
		Properties releaseProperties = new Properties();
		try {
			InputStream in = BalancerRunner.class.getResourceAsStream("release.properties");
			if(in != null) {
				releaseProperties.load(in);
				in.close();
				return releaseProperties.getProperty(property);
			}
		} catch (Exception e) {
			logger.warn("Unable to extract the version of Restcomm Load Balancer currently running", e);
		}	
		return null;
	}
}