com.ikon.util.WarUtils.java Source code

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Here is the source code for com.ikon.util.WarUtils.java

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/**
 *  openkm, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  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; either version 2 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 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.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.jar.Attributes;
import java.util.jar.Manifest;

import javax.servlet.ServletContext;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ikon.bean.AppVersion;

public class WarUtils {
    private static Logger log = LoggerFactory.getLogger(WarUtils.class);
    private static AppVersion appVersion = new AppVersion();

    /**
     * 
     */
    public static AppVersion getAppVersion() {
        return appVersion;
    }

    /**
     * 
     */
    public static synchronized void setAppVersion(AppVersion newAppVersion) {
        appVersion = newAppVersion;
    }

    /**
     * 
     */
    public static synchronized void readAppVersion(ServletContext sc) {
        String appServerHome = sc.getRealPath("/");
        File manifestFile = new File(appServerHome, "META-INF/MANIFEST.MF");
        FileInputStream fis = null;

        try {
            fis = new FileInputStream(manifestFile);
            Manifest mf = new Manifest();
            mf.read(fis);
            Attributes atts = mf.getMainAttributes();
            String impVersion = atts.getValue("Implementation-Version");
            String impBuild = atts.getValue("Implementation-Build");
            log.info("Implementation-Version: " + impVersion);
            log.info("Implementation-Build: " + impBuild);

            if (impVersion != null) {
                String[] version = impVersion.split("\\.");

                if (version.length > 0 && version[0] != null) {
                    appVersion.setMajor(version[0]);
                }

                if (version.length > 1 && version[1] != null) {
                    appVersion.setMinor(version[1]);
                }

                if (version.length > 2 && version[2] != null && !version[2].equals("")) {
                    appVersion.setMaintenance(version[2]);
                }
            }

            if (impBuild != null) {
                appVersion.setBuild(impBuild);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            IOUtils.closeQuietly(fis);
        }
    }
}