EmbeddedWebServer.java

/*******************************************************************************
 * Trombone is a flexible text processing and analysis library used
 * primarily by Voyant Tools (voyant-tools.org).
 * 
 * Copyright (©) 2007-2012 Stéfan Sinclair & Geoffrey Rockwell
 * 
 * This file is part of Trombone.
 * 
 * Trombone is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Trombone 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Trombone.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package org.voyanttools.trombone.util;

import java.io.File;
import java.io.IOException;

import org.eclipse.jetty.server.AbstractNetworkConnector;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.webapp.WebAppContext;

/**
 * This is a helper method for working with a local web server, especially for testing purposes.
 * @author Stéfan Sinclair, Cyril Briquet
 */
public class EmbeddedWebServer {
	
    private final Server server;
    private static int DEFAULT_PORT = 8889;
    private int port;

    public EmbeddedWebServer() throws IOException {
    	this(DEFAULT_PORT, TestHelper.getResourcesPath());
    }
    public EmbeddedWebServer(int port, String contentsDirectory) throws IOException {

    	if (contentsDirectory == null) {
    		throw new NullPointerException("illegal contents directory");
    	}
    	if (new File(contentsDirectory).exists() == false) {
    		throw new IOException("Embedded web server contents directory doesn't exist: "+contentsDirectory);    		
    	}

    	this.port = port;
    	this.server = new Server();

    	ServerConnector httpConnector = new ServerConnector(server);
    	((AbstractNetworkConnector) httpConnector).setPort(port);	
//        final Connector connector = new SelectChannelConnector();
//        connector.setPort(port);
    	this.server.addConnector(httpConnector);

        final WebAppContext webapp = new WebAppContext();
        webapp.setContextPath("/");
        webapp.setWar(contentsDirectory);
        this.server.setHandler(webapp);

	}

    public int getPort() {
    	
    	return this.port;
    	
    }
    
    public synchronized void start() throws Exception {

        this.server.start();

    }

    public synchronized void stop() throws Exception {

        this.server.stop();

    }

}