CarrosResourceV2.java

package br.com.livro.rest;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.client.oauth1.AccessToken;
import org.glassfish.jersey.client.oauth1.ConsumerCredentials;
import org.glassfish.jersey.client.oauth1.OAuth1ClientSupport;
@Path("/carrosv2")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public class CarrosResourceV2 {
	// URL do servidor do web service REST
	private static final String URL = "http://localhost:8080/Carros";
	@Context
	private HttpServletRequest req;
	@GET
	public Response getCarros() {
		Client client = getClient();
		Response r = Response.ok(client.target(URL).path("/rest/carros")
						.request(MediaType.APPLICATION_JSON)
						.get(String.class)).build();
		return r;
	}
	@GET
	@Path("/userInfo")
	@Produces(MediaType.TEXT_PLAIN + ";charset=utf-8")
	public Response userInfo() {
		Client client = getClient();
		Response r = Response.ok(client.target(URL).path("/rest/userInfo")
						.request(MediaType.TEXT_PLAIN)
						.get(String.class)).build();
		return r;
	}
	private Client getClient() {
		AccessToken accessToken = (AccessToken) req.getSession().getAttribute("accessToken");
		String consumerKey = MyApplication.CONSUMER_KEY;
		String consumerSecret = MyApplication.CONSUMER_SECRET;
		ConsumerCredentials credentials = new ConsumerCredentials(consumerKey,consumerSecret);
		Feature feature = OAuth1ClientSupport.builder(credentials).feature().accessToken(accessToken).build();
		Client client = ClientBuilder.newClient().register(feature).register(GsonMessageBodyHandler.class);
		return client;
	}
}