
/*
 * de.unkrig.commons - A general-purpose Java class library
 *
 * Copyright (c) 2012, Arno Unkrig
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *       following disclaimer in the documentation and/or other materials provided with the distribution.
 *    3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package de.unkrig.commons.net.tool.httpd;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.logging.Level;

import de.unkrig.commons.lang.ThreadUtil;
import de.unkrig.commons.lang.protocol.RunnableWhichThrows;
import de.unkrig.commons.util.logging.SimpleLogging;

/** The HTTPD command line utility. */
public final
class Main {

    private Main() {}

    public static void // SUPPRESS CHECKSTYLE JavadocMethod
    main(String[] args) throws IOException {
        int i = 0;
        while (i < args.length) {
            String arg = args[i];
            if (!arg.startsWith("-")) break;
            i++;
            if ("-help".equals(arg)) {

                // SUPPRESS CHECKSTYLE LineLength:5
                System.out.println("Usage:");
                System.out.println("  java " + Main.class.getName() + " [ <option> ... ] ( <local-port> <document-root> ) ..."); // SUPPRESS CHECKSTYLE LineLength
                System.out.println("Valid options are:");
                System.out.println("  -help");
                System.out.println("  -log <level> Log to STDERR");

                return;
            } else
            if ("-log".equals(arg)) {
                SimpleLogging.setLevel(Level.parse(args[i++]));
            } else
            {
                System.err.println("Invalid command line option '" + arg + "' - try '-help'.");
                System.exit(1);
            }
        }

        if (i == args.length || (args.length - i) % 2 != 0) {
            System.err.println("Local port and/or document root missing - try '-help'.");
            System.exit(1);
        }

        while (i + 2 <= args.length) {
            int    localPort = Integer.parseInt(args[i++]);
            String fileName  = args[i++];

            RunnableWhichThrows<IOException> httpd = new Httpd(new InetSocketAddress(localPort), fileName);
            ThreadUtil.runInBackground(httpd, "httpd");
        }

        try {
            Thread.sleep(Long.MAX_VALUE);
        } catch (InterruptedException ie) {
            ;
        }
    }
}
