//
//  HttpServer
//  Copyright 2011 by Florian Richter
//  First released 13.04.2011 at http://yacy.net
//  
//  $LastChangedDate$
//  $LastChangedRevision$
//  $LastChangedBy$
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2.1 of the License, or (at your option) any later version.
//  
//  This library 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
//  Lesser General Public License for more details.
//  
//  You should have received a copy of the GNU Lesser General Public License
//  along with this program in the file lgpl21.txt
//  If not, see <http://www.gnu.org/licenses/>.
//

package net.yacy.http;

import net.yacy.search.Switchboard;

import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.server.handler.DefaultHandler;
import org.eclipse.jetty.server.handler.HandlerList;
import org.eclipse.jetty.server.handler.ResourceHandler;
import org.eclipse.jetty.server.nio.SelectChannelConnector;


/**
 * class to embedded jetty http server into YaCy
 */
public class HttpServer {
	
	private Server server = new Server();
	
	/**
	 * @param port TCP Port to listen for http requests
	 */
	public HttpServer(int port) {
		Switchboard sb = Switchboard.getSwitchboard();
        server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(port);
        //connector.setThreadPool(new QueuedThreadPool(20));
        server.addConnector(connector);
        
        YacyDomainHandler domainHandler = new YacyDomainHandler();
        domainHandler.setAlternativeResolver(sb.peers);
        
        ResourceHandler resource_handler = new ResourceHandler();
        resource_handler.setDirectoriesListed(true);
        resource_handler.setWelcomeFiles(new String[]{ "index.html" });
 
        resource_handler.setResourceBase("htroot/");

        HandlerList handlers = new HandlerList();
        handlers.setHandlers(new Handler[]
                {	domainHandler, new ProxyCacheHandler(), new ProxyHandler(), new RewriteHandler(),
        			new SSIHandler(new TemplateHandler()),
        			resource_handler, new DefaultHandler() });
        
        YaCySecurityHandler securityHandler = new YaCySecurityHandler();
        securityHandler.setLoginService(new YaCyLoginService());
        securityHandler.setRealmName("YaCy Admin Interface");
        securityHandler.setHandler(new CrashProtectionHandler(handlers));
        
        // context handler for dispatcher and security
        ContextHandler context = new ContextHandler();
        context.setContextPath("/");
        context.setHandler(securityHandler);
        
        server.setHandler(context);
	}
	
	/**
	 * start http server
	 */
	public void start() throws Exception {
        server.start();
	}
	
	/**
	 * stop http server and wait for it
	 */
	public void stop() throws Exception {
		server.stop();
        server.join();
	}

	/**
	 * just for testing and debugging
	 */
	public static void main(String[] args) throws Exception {
		HttpServer server = new HttpServer(8090);
		server.start();
		server.stop();
	}

}