Quelle ServerInfo.java Sprache: JAVA

/*
* 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;

import org.apache.tomcat.util.ExceptionUtils;

/**
* Simple utility module to make it easy to plug in the server identifier
* when integrating Tomcat.
*
* @author Craig R. McClanahan
*/
public class ServerInfo {

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

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

    /**
     * The server built String.
     */
    private static final String serverBuilt;

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

    static {

        String info = null;
        String built = null;
        String number = null;

        Properties props = new Properties();
        try (InputStream is = ServerInfo.class.getResourceAsStream
                ("/org/apache/catalina/util/ServerInfo.properties")) {
            props.load(is);
            info = props.getProperty("server.info");
            built = props.getProperty("server.built");
            number = props.getProperty("server.number");
        } catch (Throwable t) {
            ExceptionUtils.handleThrowable(t);
        }
        if (info == null || info.equals("Apache Tomcat/@VERSION@")) {
            info = "Apache Tomcat/10.1.x-dev";
        }
        if (built == null || built.equals("@VERSION_BUILT@")) {
            built = "unknown";
        }
        if (number == null || number.equals("@VERSION_NUMBER@")) {
            number = "10.1.x";
        }

        serverInfo = info;
        serverBuilt = built;
        serverNumber = number;
    }

    // --------------------------------------------------------- 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"));
    }

}

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