/logback-1.0.6/logback-core/src/main/java/ch/qos/logback/core/util/EnvUtil.java

/**

 * Logback: the reliable, generic, fast and flexible logging framework.

 * Copyright (C) 1999-2011, QOS.ch. All rights reserved.

 *

 * This program and the accompanying materials are dual-licensed under

 * either the terms of the Eclipse Public License v1.0 as published by

 * the Eclipse Foundation

 *

 *   or (per the licensee's choosing)

 *

 * under the terms of the GNU Lesser General Public License version 2.1

 * as published by the Free Software Foundation.

 */

package ch.qos.logback.core.util;



/**

 * @author Ceki Gücü

 */

public class EnvUtil {





  static public boolean isJDK5() {

    String javaVersion = System.getProperty("java.version");

    if (javaVersion == null) {

      return false;

    }

    if (javaVersion.startsWith("1.5")) {

      return true;

    } else {

      return false;

    }

  }



  static public boolean isJaninoAvailable() {

    ClassLoader classLoader = EnvUtil.class.getClassLoader();

    try {

      Class bindingClass = classLoader.loadClass("org.codehaus.janino.ScriptEvaluator");

      return (bindingClass != null);

    } catch (ClassNotFoundException e) {

      return false;

    }

  }



  public static boolean isWindows() {

    String os = System.getProperty("os.name");

    return os.startsWith("Windows");

  }



}