Tomcat and Restlets

[Thomas]

Hello,

I've got some problems concerning the integration of a simple Application into
the  Tomcat container. I followed the instructions on the restlet.org FAQs,
however it doesn't work with my code, I get HTTP 500 internal errors. The
application works in the Noelios engine.

package com.interaktivestadt;

import java.io.File;

import org.restlet.Component;
import org.restlet.Context;
import org.restlet.Restlet;
import org.restlet.Route;
import org.restlet.Router;
import org.restlet.data.Protocol;
import org.restlet.util.Variable;
import org.restlet.Directory;

import com.db4o.Db4o;
import com.db4o.ObjectContainer;
import com.db4o.config.Configuration;

/**
 * The main Web application.
 *
 * @author Thomas Fuhrmann
 */
public class Application extends org.restlet.Application {

        private ObjectContainer container;

    public static void main(String[] args) throws Exception {
        // Create a component with an HTTP server connector
        Component comp = new Component();
        comp.getServers().add(Protocol.HTTP, 3000);
        comp.getClients().add(Protocol.FILE);

        // Attach the application to the default host and start it
        comp.getDefaultHost().attach("/", new Application(comp.getContext()));
        comp.start();
    }

    public Application(Context context) {

                super(context);
                // the db4o container is a simple database for storing objects
        // setting the update depth to two, because the user object we store
contains a non primitive member
        // system property "user.home" means the local user directory
        Db4o.configure().updateDepth(2);
        this.container = Db4o.openFile(System.getProperty("user.home") +
File.separator + "userdb.dbo");
    }


    public Restlet createRoot() {
                // Router routes client requests to their according resources
                // taken from the Restlet docs:
                // The context property is typically provided by a parent 
Component as a way
to encapsulate access to shared features such as logging and client connectors.
        Router router = new Router(getContext());

        // Add a route for the homepage resource
        router.attach("",HomeResource.class);

        // Add a route for the user input validation
        router.attach("/users/participation", ParticipationResource.class);

        // Add a route for the users resource
        Route usersRoute = router.attach("/users/{username}", 
UserResource.class);
        usersRoute.getTemplate().getVariables().put("username", new
Variable(Variable.TYPE_ALL));

        return router;
    }

    /**
     * Returns the database container.
     *
     * @return the database container.
     */
    public ObjectContainer getContainer() {
        return this.container;
    }

}

Thanks, for your help!