657b9db1ba
Updated files with 2011, 2012 and 2013 years according to the file's last updated date Reviewed-by: tbell, lancea, chegar
118 lines
3.7 KiB
Java
118 lines
3.7 KiB
Java
/*
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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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}
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