Part10.java

/**
 * Copyright 2005-2014 Restlet
 * 
 * The contents of this file are subject to the terms of one of the following
 * open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
 * select the license that you prefer but you may not use this file except in
 * compliance with one of these Licenses.
 * 
 * You can obtain a copy of the Apache 2.0 license at
 * http://www.opensource.org/licenses/apache-2.0
 * 
 * You can obtain a copy of the EPL 1.0 license at
 * http://www.opensource.org/licenses/eclipse-1.0
 * 
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 * 
 * Alternatively, you can obtain a royalty free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * http://restlet.com/products/restlet-framework
 * 
 * Restlet is a registered trademark of Restlet S.A.S.
 */

package org.restlet.example.tutorial;

import org.restlet.Application;
import org.restlet.Component;
import org.restlet.Restlet;
import org.restlet.data.Protocol;
import org.restlet.routing.Extractor;
import org.restlet.routing.Redirector;
import org.restlet.routing.Router;

/**
 * URI rewriting, attribute extraction and redirection.
 * 
 * @author Jerome Louvel
 */
public class Part10 extends Application {

    /**
     * Run the example as a standalone component.
     * 
     * @param args
     *            The optional arguments.
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        // Create a component
        Component component = new Component();
        component.getServers().add(Protocol.HTTP, 8111);

        // Create an application
        Application application = new Part10();

        // Attach the application to the component and start it
        component.getDefaultHost().attachDefault(application);
        component.start();
    }

    @Override
    public Restlet createInboundRoot() {
        // Create a root router
        Router router = new Router(getContext());

        // Create a Redirector to Google search service
        String target = "http://www.google.com/search?q=site:mysite.org+{keywords}";
        Redirector redirector = new Redirector(getContext(), target,
                Redirector.MODE_CLIENT_TEMPORARY);

        // While routing requests to the redirector, extract the "kwd" query
        // parameter. For instance :
        // http://localhost:8111/search?kwd=myKeyword1+myKeyword2
        // will be routed to
        // http://www.google.com/search?q=site:mysite.org+myKeyword1%20myKeyword2
        Extractor extractor = new Extractor(getContext(), redirector);
        extractor.extractFromQuery("keywords", "kwd", true);

        // Attach the extractor to the router
        router.attach("/search", extractor);

        // Return the root router
        return router;
    }

}