Tomcat example source code file (ServerInfo.java)

This example Tomcat source code file (ServerInfo.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Tomcat tags/keywords

apache, apache, inputstream, io, properties, properties, serverinfo, string, string, throwable, tomcat, tomcat, util

The Tomcat ServerInfo.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package org.apache.catalina.util;


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


/**
 * Simple utility module to make it easy to plug in the server identifier
 * when integrating Tomcat.
 *
 * @author Craig R. McClanahan
 * @version $Revision: 467222 $ $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
 */

public class ServerInfo {


    // ------------------------------------------------------- Static Variables


    /**
     * The server information String with which we identify ourselves.
     */
    private static String serverInfo = null;

    /**
     * The server built String.
     */
    private static String serverBuilt = null;

    /**
     * The server's version number String.
     */
    private static String serverNumber = null;

    static {

        try {
            InputStream is = ServerInfo.class.getResourceAsStream
                ("/org/apache/catalina/util/ServerInfo.properties");
            Properties props = new Properties();
            props.load(is);
            is.close();
            serverInfo = props.getProperty("server.info");
            serverBuilt = props.getProperty("server.built");
            serverNumber = props.getProperty("server.number");
        } catch (Throwable t) {
            ;
        }
        if (serverInfo == null)
            serverInfo = "Apache Tomcat";
        if (serverBuilt == null)
            serverBuilt = "unknown";
        if (serverNumber == null)
            serverNumber = "5.5.0.0";
        
    }


    // --------------------------------------------------------- Public Methods


    /**
     * Return the server identification for this version of Tomcat.
     */
    public static String getServerInfo() {

        return (serverInfo);

    }

    /**
     * Return the server built time for this version of Tomcat.
     */
    public static String getServerBuilt() {

        return (serverBuilt);

    }

    /**
     * Return the server's version number.
     */
    public static String getServerNumber() {

        return (serverNumber);

    }

    public static void main(String args[]) {
        System.out.println("Server version: " + getServerInfo());
        System.out.println("Server built:   " + getServerBuilt());
        System.out.println("Server number:  " + getServerNumber());
        System.out.println("OS Name:        " +
                           System.getProperty("os.name"));
        System.out.println("OS Version:     " +
                           System.getProperty("os.version"));
        System.out.println("Architecture:   " +
                           System.getProperty("os.arch"));
        System.out.println("JVM Version:    " +
                           System.getProperty("java.runtime.version"));
        System.out.println("JVM Vendor:     " +
                           System.getProperty("java.vm.vendor"));                        
    }

}