A simple proxy test

EndpointServer.java

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.HandlerCollection;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

public class EndpointServer{


    public static void main(String[] args) throws Exception {

        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(9999);
        server.addConnector(connector);

        HandlerCollection handlers = new HandlerCollection();
        server.setHandler(handlers);

        // Setup proxy servlet
        ServletContextHandler context = new ServletContextHandler(handlers, "/", ServletContextHandler.SESSIONS);
        ServletHolder servlet = new ServletHolder(DemoServlet.class);
        context.addServlet(servlet, "/*");
        server.start();

    }

    public static class DemoServlet implements Servlet{

		private ServletConfig config;

		public void init(ServletConfig config) throws ServletException {
			this.config = config;
		}

		public ServletConfig getServletConfig() {
			return config;
		}

		public void service(ServletRequest req, ServletResponse res)
				throws ServletException, IOException {

			HttpServletRequest request = (HttpServletRequest) req;

			PrintWriter writer = res.getWriter();
			writer.write("Hello world from Demo. You requested " + request.getRequestURI());
			writer.flush();
			writer.close();

		}

		public String getServletInfo() {
			return "DemoServlet Info";
		}

		public void destroy() {

		}

    }

}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

	<!-- Omitted project details -->
	<dependencies>
		<dependency>
			<groupId>org.eclipse.jetty</groupId>
			<artifactId>example-jetty-embedded</artifactId>
			<version>7.4.5.v20110725</version>
		</dependency>
	</dependencies>
</project>

ProxyServer.java

import java.net.MalformedURLException;

import org.eclipse.jetty.http.HttpURI;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ConnectHandler;
import org.eclipse.jetty.server.handler.HandlerCollection;
import org.eclipse.jetty.server.nio.SelectChannelConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.servlets.ProxyServlet;

public class ProxyServer {

    public static void main(String[] args) throws Exception {

        Server server = new Server();
        SelectChannelConnector connector = new SelectChannelConnector();
        connector.setPort(8888);
        server.addConnector(connector);

        HandlerCollection handlers = new HandlerCollection();
        server.setHandler(handlers);

        // Setup proxy servlet
        ServletContextHandler context = new ServletContextHandler(handlers, "/", ServletContextHandler.SESSIONS);
        ServletHolder proxyServlet = new ServletHolder(MyProxyServlet.class);
        proxyServlet.setInitParameter("whiteList", "google.com, www.eclipse.org, localhost");
        proxyServlet.setInitParameter("blackList", "google.com/calendar/*, www.eclipse.org/committers/");
        context.addServlet(proxyServlet, "/*");

        // Setup proxy handler to handle CONNECT methods
        ConnectHandler proxy = new ConnectHandler();
        proxy.setWhite(new String[]{"mail.google.com"});
        proxy.addWhite("www.google.com");
        handlers.addHandler(proxy);

        server.start();

    }


    public static class MyProxyServlet extends ProxyServlet{
    	@Override
    	protected HttpURI proxyHttpURI(String scheme, String serverName,
    			int serverPort, String uri) throws MalformedURLException {
    		// TODO Auto-generated method stub

    		System.out.println("Requested " + scheme + "://" + serverName + ":" + serverPort + uri);

    		return new HttpURI("http://localhost:9999" + uri);
    	}
    }
}

Related SO quesiton about handling Connect (and SSL) http://stackoverflow.com/questions/9852056/jetty-proxyservlet-with-ssl-support