RESTful Webservices on Google App Engine

Question

First of all I need to say that I\'m not so experienced in Google App Engine.

I know that it is possible that we deploy RESTful Web-services (JERSEY) on GAE<

Answer 1

I started one year ago to develop an app with Jersey and Google App Engine. Great experience from my side, but I have never worked with Restlet ..

I try here to summarize the main difficulties I found in GAE integration:

• Jersey version: 1.6 works
• I suggest you to use Jackson (version 1.7.1) for json representation

web.xml fragment:

jersey
com.sun.jersey.spi.container.servlet.ServletContainer

com.sun.jersey.config.property.packages
***package-with-your-classes***;org.codehaus.jackson.jaxrs

1

Configurator:

@Provider
public class JAXBContextResolver implements ContextResolver {
private AnnoxAnnotationReader annotationReader;
private JAXBContext context;
private Class[] classTypes = new Class[] { .. all your classes .. };

public JAXBContextResolver() {
annotationReader = new AnnoxAnnotationReader();
Map properties = new HashMap();
properties.put(JAXBRIContext.ANNOTATION_READER, annotationReader);      
try {
    this.context = JAXBContext.newInstance(classTypes, properties);
} catch (JAXBException e) {
    ..  
}
public JAXBContext getContext(Class objectType) {
    return context;
}

.. as you can see I use Annox to avoid annotations inside my model classes!

Hope it helps! Michele Orsi