Jersey Client with Client Filter

Question

I am using Jersey Client.

Client client = Client.create();
client.addFilter(new Myfilter());
// do some other things

And Myfilter Class

public class Myfilter extends ClientFilter {

    public ClientResponse handle(ClientRequest cr) {
         System.out.println("called");
         ClientResponse resp = getNext().handle(cr);
         return resp;
    }
}

I am not able to call handle method of Myfilter. Can anybody help me out in this?

Answer 1

This Article explains how to add a filter for jersey client.

Hope it helps

PS : in case you forgot to add it to your web.xml

<init-param>
  <param-name>your.package.ClientFilter</param-name >
</init-param>

Example

@Override
    public ClientResponse handle(ClientRequest request) throws ClientHandlerException {
        request.getHeaders().putSingle(HttpHeaders.CONTENT_TYPE, "application/json");
        return getNext().handle(request);
    }

Answer 2

Here is simple example (using jersey-client version 1.x) which results in printing "called" to console:

import com.sun.jersey.api.client.*;
import com.sun.jersey.api.client.filter.ClientFilter;

public class JerseyClientFilterExample {
    public static void main(String[] args) {
        Client client = Client.create();
        client.addFilter(new MyClientFilter());
        client.resource("http://google.com").get(ClientResponse.class);
    }
}

class MyClientFilter extends ClientFilter {
    @Override
    public ClientResponse handle(ClientRequest cr) throws ClientHandlerException {
        System.out.println("called");
        return getNext().handle(cr);
    }
}