tdsiresourceJackson

package services;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.PathParam;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PUT;
import model.Marca;

@Path("tdsi")
public class TdsiResource {

    @Context
    private UriInfo context;

    private final EntityManagerFactory factory;
    private final EntityManager manager;

    public TdsiResource() {
        factory = Persistence.createEntityManagerFactory("tdsiWSPU");
        manager = factory.createEntityManager();
    }

    @GET
    @Path("/listarmarca")
    @Produces("application/json")
    public String getJson() {

       Marca marca = new Marca();
       marca = manager.find(Marca.class,Long.parseLong("1"));
       manager.close();

       ObjectMapper mapper = new ObjectMapper();
       String saidajson = null;

        try {
            saidajson = mapper.writeValueAsString(marca);
        } catch (JsonProcessingException ex) {
            Logger.getLogger(TdsiResource.class.getName()).log(Level.SEVERE, null, ex);
        }
       return saidajson;
//     throw new UnsupportedOperationException();
    }

    @PUT
    @Consumes("application/json")
    public void putJson(String content) {
    }
}