author | mcimadamore |
Fri, 31 Aug 2018 18:01:47 +0100 | |
changeset 51612 | bdac20c6c8dd |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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6dadb192ad81
8029235: Update copyright year to match last edit in jdk8 jdk repository for 2013
lana
parents:
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diff
changeset
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* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.lang.reflect.Method; |
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import java.net.URL; |
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import java.net.URLClassLoader; |
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import java.util.jar.Attributes; |
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import java.util.jar.JarFile; |
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/** Run an application (from a jar file) and terminate it after a given |
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* number of seconds. |
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*/ |
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public class MaxTime { |
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private static boolean debugFlag = false; |
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private static void debug(String s) { |
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if (debugFlag) { |
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System.err.println(s); |
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} |
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} |
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private static void usage() { |
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System.err.println( |
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"Usage:\n" + |
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" java MaxTime <jarfile> <timeout>\n" + |
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"\n" + |
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" <jarfile> is a jar file specifying an application to run\n" + |
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" <timeout> is an integer number of seconds to allow the app to run." ); |
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System.exit(1); |
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} |
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public static void main(String[] args) { |
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int timeoutPeriod = 0; |
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String mainClass = null; |
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if (args.length != 2) |
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usage(); |
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// Identify the timeout value. |
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try { |
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timeoutPeriod = Integer.parseInt(args[1]); |
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} catch (Exception e) { |
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usage(); |
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} |
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// Identify the application's main class. |
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try { |
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mainClass = new JarFile(args[0]).getManifest() |
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.getMainAttributes().getValue(Attributes.Name.MAIN_CLASS); |
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} catch (FileNotFoundException e) { |
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System.err.println("Can't find " + args[0]); |
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System.exit(1); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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System.exit(2); |
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} |
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// Set the exit timer. |
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final int timeout = timeoutPeriod * 1000; |
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new Thread() { |
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public void run() { |
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try { |
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debug("Before timeout!"); |
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Thread.sleep(timeout); |
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debug("After timeout!"); |
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} catch (InterruptedException e) { |
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} |
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debug("Exit caused by timeout!"); |
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System.exit(0); |
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} |
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}.start(); |
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// Start up the app. |
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try { |
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ClassLoader cl = new URLClassLoader( |
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new URL[] {new URL("file:"+args[0])}); |
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Class clazz = cl.loadClass(mainClass); |
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String[] objs = new String[0]; |
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Method mainMethod = clazz.getMethod("main", new Class[]{objs.getClass()}); |
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mainMethod.invoke(null, new Object[]{objs}); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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System.exit(3); |
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} |
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} |
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} |