Build.java

/*
 * Copyright (C) 2014 Jörg Prante
 *
 * 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
 * or write to the Free Software Foundation, Inc., 51 Franklin Street,
 * Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * The interactive user interfaces in modified source and object code
 * versions of this program must display Appropriate Legal Notices,
 * as required under Section 5 of the GNU Affero General Public License.
 *
 */
package org.xbib.elasticsearch.plugin.analysis.german;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.StringReader;
import java.net.URL;
import java.util.Enumeration;
import java.util.Properties;

public class Build {

    private static final Build INSTANCE;

    static {
        String version = "NA";
        String hash = "NA";
        String hashShort = "NA";
        String timestamp = "NA";
        String date = "NA";

        try {
            String pluginName = AnalysisGermanPlugin.class.getName();
            Enumeration<URL> e = AnalysisGermanPlugin.class.getClassLoader().getResources("es-plugin.properties");
            while (e.hasMoreElements()) {
                URL url = e.nextElement();
                InputStream in = url.openStream();
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                byte[] buffer = new byte[1024];
                int len;
                while ((len = in.read(buffer)) != -1) {
                    out.write(buffer, 0, len);
                }
                in.close();
                Properties props = new Properties();
                props.load(new StringReader(new String(out.toByteArray())));
                String plugin = props.getProperty("plugin");
                if (pluginName.equals(plugin)) {
                    version = props.getProperty("version");
                    hash = props.getProperty("hash");
                    if (!"NA".equals(hash)) {
                        hashShort = hash.substring(0, 7);
                    }
                    timestamp = props.getProperty("timestamp");
                    date = props.getProperty("date");
                }
            }
        } catch (Throwable e) {
            // just ignore...
        }
        INSTANCE = new Build(version, hash, hashShort, timestamp, date);
    }

    private String version;

    private String hash;

    private String hashShort;

    private String timestamp;

    private String date;

    Build(String version, String hash, String hashShort, String timestamp, String date) {
        this.version = version;
        this.hash = hash;
        this.hashShort = hashShort;
        this.timestamp = timestamp;
        this.date = date;
    }

    public static Build getInstance() {
        return INSTANCE;
    }

    public String getVersion() {
        return version;
    }

    public String getHash() {
        return hash;
    }

    public String getShortHash() {
        return hashShort;
    }

    public String getTimestamp() {
        return timestamp;
    }

    public String getDate() {
        return date;
    }
}