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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* recipient has the option to distribute your version of this file under
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*/
// Portions Copyright 2019-2022 Payara Foundation and/or its affiliates
// Payara Foundation and/or its affiliates elects to include this software in this distribution under the GPL Version 2 license
/*
* PersistenceLauncher.java
*
* Created on July 3, 2000, 8:22 AM
*/
package com.sun.jdo.api.persistence.enhancer;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import com.sun.jdo.api.persistence.enhancer.util.Support;
/**
* Application launcher for persistence-capable classes.
*
* @author Martin Zaun
* @version 1.1
*/
public class PersistenceLauncher {
// chose whether to separate or join out and err channels
// static private final PrintWriter err = new PrintWriter(System.err, true);
static private final PrintWriter err = new PrintWriter(System.out, true);
static private final PrintWriter out = new PrintWriter(System.out, true);
static private final String prefix = "PersistenceLauncher.main() : ";// NOI18N
/**
* Creates new PersistenceLauncher.
*/
private PersistenceLauncher() {
}
/**
* Prints usage message.
*/
static void usage() {
out.flush();
err.println("PersistenceLauncher:");
err.println(" usage: ... ...");
err.println(" options:");
err.println(" -h | --help");
err.println(" -q | --quiet");
err.println(" -w | --warn");
err.println(" -d | --debug");
err.println(" -t | --timing");
err.println(" class names have to be fully qualified");
err.println("done.");
err.println();
err.flush();
}
/**
* Creates a class loader and launches a target class.
*
* @param args the command line arguments
*/
public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, SecurityException, IllegalAccessException,
IllegalArgumentException, InvocationTargetException {
// get launcher options
String classpath = System.getProperty("java.class.path");
boolean debug = false;
boolean timing = false;
String targetClassname = null;
String[] targetClassArgs = null;
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.equals("-h")// NOI18N
|| arg.equals("--help")) {// NOI18N
usage();
// exit gently
return;
}
if (arg.equals("-t")// NOI18N
|| arg.equals("--timing")) {// NOI18N
timing = true;
continue;
}
if (arg.equals("-d")// NOI18N
|| arg.equals("--debug")) {// NOI18N
debug = true;
continue;
}
if (arg.equals("-w")// NOI18N
|| arg.equals("--warn")) {// NOI18N
debug = false;
continue;
}
if (arg.equals("-q")// NOI18N
|| arg.equals("--quiet")) {// NOI18N
debug = false;
continue;
}
// get target class name
targetClassname = arg;
// copy remaining arguments and leave loop
i++;
final int length = args.length - i;
targetClassArgs = new String[length];
System.arraycopy(args, i, targetClassArgs, 0, length);
break;
}
// debugging oputput
if (debug) {
out.println(prefix + "...");// NOI18N
out.println("settings and arguments:");// NOI18N
out.println(" classpath = " + classpath);// NOI18N
out.println(" debug = " + debug);// NOI18N
out.println(" targetClassname = " + targetClassname);// NOI18N
out.print(" targetClassArgs = { ");// NOI18N
for (int i = 0; i < targetClassArgs.length; i++) {
out.print(targetClassArgs[i] + " ");// NOI18N
}
out.println("}");// NOI18N
}
// check options
if (targetClassname == null) {
usage();
throw new IllegalArgumentException("targetClassname == null");// NOI18N
}
// get class loader
final ClassLoader loader;
if (debug) {
out.println(prefix + "using system class loader");// NOI18N
}
// out.println("using system class loader");
loader = PersistenceLauncher.class.getClassLoader();
// get target class' main method
Class clazz;
Method main;
try {
String mname = "main";
Class[] mparams = new Class[] { String[].class };
boolean init = true;
if (debug) {
out.println(prefix + "getting method " + targetClassname + "." + mname + "(String[])");
}
clazz = Class.forName(targetClassname, init, loader);
main = clazz.getDeclaredMethod(mname, mparams);
} catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) {
// log exception only
if (debug) {
out.flush();
err.println("PersistenceLauncher: EXCEPTION SEEN: " + e);
e.printStackTrace(err);
err.flush();
}
throw e;
}
// Invoke target class' main method
try {
Object[] margs = new Object[] { targetClassArgs };
if (debug) {
out.println("invoking method " + clazz.getName() + "." + main.getName() + "(String[])");
}
main.invoke(null, margs);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
// log exception only
if (debug) {
out.flush();
err.println("PersistenceLauncher: EXCEPTION SEEN: " + e);
e.printStackTrace(err);
err.flush();
}
throw e;
} finally {
if (timing) {
Support.timer.print();
}
}
if (debug) {
out.println(prefix + "done.");// NOI18N
out.flush();
err.flush();
}
}
}