SystemUtils.java

/**
 * Copyright 2013-2016 Guoqiang Chen, Shanghai, China. All rights reserved.
 *
 *   Author: Guoqiang Chen
 *    Email: subchen@gmail.com
 *   WebURL: https://github.com/subchen
 *
 * Licensed 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 jetbrick.util;

import java.io.File;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public final class SystemUtils {

    public static final String JAVA_HOME = System.getProperty("java.home");
    public static final String JAVA_IO_TMPDIR = System.getProperty("java.io.tmpdir");
    public static final String OS_NAME = System.getProperty("os.name");
    public static final String USER_DIR = System.getProperty("user.dir");
    public static final String FILE_ENCODING = System.getProperty("file.encoding");
    public static final String LINE_SEPARATOR = System.getProperty("line.separator");
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    public static final boolean IS_OS_WINDOWS = (File.separatorChar == '\\');
    public static final boolean IS_OS_UNIX = (File.separatorChar == '/');

    public static void die() {
        die(null, null);
    }

    public static void die(String message, Throwable cause) {
        if (message == null) {
            message = "die";
        }
        Throwable ex = new Exception(message, cause);

        Logger log = LoggerFactory.getLogger(SystemUtils.class);
        log.error("***************************************************");
        log.error("!!! SYSTEM DEAD !!!");

        log.error("------Exception------");
        log.error(message, ex);

        log.error("------System.getProperties------");
        log.error(System.getProperties().toString());

        log.error("------System.getenv------");
        log.error(System.getenv().toString());

        log.error("------Threads------");
        log.error(VMUtils.getThreadDump());

        log.error("***************************************************");

        System.exit(1);
    }
}