/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.spark.singularity.boot;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.CodeSource;
import java.security.ProtectionDomain;
import java.util.jar.Attributes;
import java.util.jar.JarInputStream;
import java.util.jar.Manifest;
public class SingularityEntryPoint {
public static void main (String... args)
throws IOException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
ProtectionDomain protectionDomain = SingularityEntryPoint.class.getProtectionDomain();
CodeSource codeSource = protectionDomain.getCodeSource();
Manifest manifest;
String mainClass;
try (JarInputStream jarInputStream = new JarInputStream(codeSource.getLocation().openStream())) {
manifest = jarInputStream.getManifest();
Thread.currentThread().setContextClassLoader(new SingularityClassLoader(null, manifest, codeSource.getLocation(), jarInputStream));
}
if ((mainClass = manifest.getMainAttributes().getValue(new Attributes.Name("Singularity-Class"))) != null) {
if (!mainClass.equals(SingularityEntryPoint.class.getName())) {
Class<?> clazz = Thread.currentThread().getContextClassLoader().loadClass(mainClass);
Method main = clazz.getMethod("main", String[].class);
main.invoke(null, new Object[] {args});
}
}
}
}