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/*
 * 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2007-2008 Sun Microsystems, Inc. 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.html
 * or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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package com.sun.grizzly.launcher.web;

import com.sun.grizzly.http.WebFilter;
import com.sun.grizzly.http.WebFilterConfig;
import com.sun.grizzly.arp.AsyncWebFilter;
import com.sun.grizzly.arp.AsyncWebFilterConfig;
import com.sun.grizzly.arp.DefaultAsyncHandler;
import com.sun.grizzly.tcp.Adapter;
import com.sun.grizzly.tcp.StaticResourcesAdapter;
import com.sun.grizzly.util.ClassLoaderUtil;
import com.sun.grizzly.standalone.StandaloneMainUtil;
import com.sun.grizzly.standalone.StaticHandler;

    
/**
 * Basic startup class used when Grizzly standalone is used
 *
 * @author Jeanfrancois Arcand
 */
public class Main extends StandaloneMainUtil{
    
    private static final String ADAPTER = "com.sun.grizzly.adapter";
    
    private static final String ENABLE_ASYNC = "com.sun.grizzly.enableARP";
 
    static int port = 8080;
    
    static String folder = ".";
    
    public Main() {
    }
    
    
    public static void main( String args[] ) throws Exception {       
        Main main = new Main();        
        main.start(args);
    }
    
    @Override
    public WebFilter createWebFilter(String[] args) throws Exception{
        if (args.length == 0) {
            printHelpAndExit();
        }
 
        // parse options
        parseOptions(args);
        String appliPath = parseApplicationLocation(args);
        appliPath = appendWarContentToClassPath(appliPath);

        AsyncWebFilterConfig webConfig = new AsyncWebFilterConfig();
        webConfig.setAdapter(configureAdapter(webConfig));
        webConfig.setDisplayConfiguration(true);
        webConfig.setWebAppRootPath(appliPath);

        WebFilter webFilter = new AsyncWebFilter("MyHtttpServer", webConfig);
        webConfig.setInterceptor(new StaticHandler(webFilter));

        boolean enableAsync = Boolean.valueOf(System.getProperty(ENABLE_ASYNC));
        webConfig.setAsyncEnabled(enableAsync);
        if (enableAsync){
            webConfig.setAsyncHandler(new DefaultAsyncHandler());
        }
        return webFilter;
    }
    
   
    @Override
    public void printHelpAndExit() {
        System.err.println("Usage: " + Main.class.getCanonicalName() + " [options]");
        System.err.println();
        System.err.println("    -p, --port=port                  Server file on the specified port.");
        System.err.println("                                     Default: 8080");
        System.err.println("    -a, --apps=application path      The static resourde folder or jar or war location.");
        System.err.println("                                     Default: .");
        System.err.println("    -h, --help                       Show this help message.");
        System.exit(1);  
    }


    @Override
    public boolean parseOptions(String[] args) {
        if(args.length == 0) {
            printHelpAndExit();
            return false;
        }
        
        // parse options
        for (int i = 0; i < args.length - 1; i++) {
            String arg = args[i];
            
            if("-h".equals(arg) || "--help".equals(arg)) {
                printHelpAndExit();
            } else if("-a".equals(arg)) {
                i ++;
                folder = args[i];
            } else if(arg.startsWith("--application=")) {
                folder = arg.substring("--application=".length(), arg.length());
            } else if ("-p".equals(arg)) {
                i ++;
                setPort(args[i]);
            } else if (arg.startsWith("--port=")) {
                String num = arg.substring("--port=".length(), arg.length());
                setPort(num);
            }
        }   
        return true;
    }

    
    @Override
    public Adapter configureAdapter(WebFilterConfig wf) {
        String adapterClass =  System.getProperty(ADAPTER);
        Adapter adapter;
        if (adapterClass == null){
            adapter = new StaticResourcesAdapter(folder);
        } else {
            adapter = (Adapter)ClassLoaderUtil.load(adapterClass);
        }
        
        if (adapter instanceof StaticResourcesAdapter){
            ((StaticResourcesAdapter)adapter).setRootFolder(folder);
        }
        return adapter;
    }

    
    @Override
    public String parseApplicationLocation(String[] args) {
        return folder;
    }
   
}