/*
 **** BEGIN LICENSE BLOCK *****
 * Version: EPL 2.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse Public
 * License Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/epl-v20.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the EPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the EPL, the GPL or the LGPL.
 ***** END LICENSE BLOCK *****/

package org.jruby.main;

import com.martiansoftware.nailgun.NGServer;
import java.net.UnknownHostException;
import java.util.regex.Pattern;

A wrapper around the default Nailgun server to present a warning if any JRuby
flags are passed.
/**
 * A wrapper around the default Nailgun server to present a warning if any JRuby
 * flags are passed.
 */
public class NailServerMain {
    private static final Pattern ADDRESS_REGEXP = Pattern.compile("^([0-9A-Za-z_]+\\.?)+$");
    private static final Pattern PORT_REGEXP = Pattern.compile("^[0-9]+$");
    private static final Pattern ADDRESSPORT_REGEXP = Pattern.compile("^([0-9A-Za-z_]+\\.?)+:([0-9]+)$");
    
    public static void main(String[] args) throws UnknownHostException {
        for (String arg : args) {
            if (!(
                    ADDRESS_REGEXP.matcher(arg).matches() ||
                    PORT_REGEXP.matcher(arg).matches() ||
                    ADDRESSPORT_REGEXP.matcher(arg).matches())) {
                throw new RuntimeException("JRuby's Nailgun server can only receive arguments via -X or -J-D properties.");
            }
        }
        NGServer.main(args);
    }
}