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AJAXJS aims to full-stack, not only the server-side framework, but also integrates the front-end library. It's written in HTML5 + Java, a successor to the JVM platform, efficient, secure, stable, cross-platform and many other advantages, but it abandoned the traditional enterprise architecture brought about by the large and bloated, emphasizing the lightweight, and fast, very suitable for the Internet fast application.

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/**
 * Copyright 2015 Sp42 [email protected]
 *
 * 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 com.ajaxjs;

import com.ajaxjs.util.CommonUtil;
import com.ajaxjs.util.logger.LogHelper;

/**
 * 初始化，检测是否可以运行
 * 
 * @author Sp42 [email protected]
 *
 */
public class Version {
	private static final LogHelper LOGGER = LogHelper.getLog(Version.class);

	/**
	 * 是否调试模式（开发模式）
	 */
	public static boolean isDebug;

	/**
	 * 源码磁盘目录
	 */
	public static final String srcFolder = Version.class.getClassLoader().getResource("").getPath();

	/**
	 * 是否苹果操作系统
	 */
	public static final boolean isMac = System.getProperty("os.name").toLowerCase().contains("mac");

	/**
	 * 是否视窗操作系统
	 */
	public static final boolean isWindows = System.getProperty("os.name").toLowerCase().contains("window");
	
	/**
	 * 是否 Linux 操作系统
	 */
	public static final boolean isLinux = System.getProperty("os.name").toLowerCase().contains("linux");

	static {
		// System.setProperty("user.timezone", "GMT +08");// 微软云设置时区
		if (System.getProperty("java.vm.vendor").indexOf("Oracle") == -1
				|| System.getProperty("java.vm.vendor").contains("openJDK")) {
			LOGGER.warning("本框架不支持 OpenJDK!如果你是 Linux 系统，请把自带的 OpenJDK 卸载，改用 Oracle JVM");
			System.exit(1);
		}

		// 版本检测
		if (System.getProperty("java.version").contains("1.8.")) {
		} else {
			LOGGER.warning("请升级你的 JRE/JDK版本 >= 1.8");
			System.exit(1);
		}

		/*
		 * 有两种模式：本地模式和远程模式（自动判断） 返回 true 表示是非 linux 环境，为开发调试的环境，即 isDebug = true； 返回
		 * false 表示在部署的 linux 环境下。 Linux 的为远程模式
		 */
		final String OS = System.getProperty("os.name").toLowerCase();
		isDebug = !(OS.indexOf("nix") >= 0 || OS.indexOf("nux") >= 0 || OS.indexOf("aix") > 0);

		LOGGER.infoGreen("AJAXJS-Base 加载完毕，当前是" + (isDebug ? "调试" : "生产环境") + "模式");
	}

	/**
	 * 检测是否 tomcat 以及版本
	 * 
	 * @param serverInfo 字符串如 Tomcat/7
	 */
	public static void tomcatVersionDetect(String serverInfo) {
		String result = CommonUtil.regMatch("(?<=Tomcat/)(\\d)", serverInfo);

		if (result != null) {
			try {
				if (Integer.parseInt(result) < 8)
					throw new UnsupportedOperationException("不支持低于 Tomcat 8 以下的版本！");
			} catch (Throwable e) {
				if (e instanceof UnsupportedOperationException)
					throw e;

				LOGGER.warning(e);// 忽略其他异常，如正则的
			}
		} else {
			// 不是 tomcat
		}
	}
}