lefloh

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface Linked {

    Class<?> resource();
	
    String method() default "";
	
    String rel() default "";
	

lefloh

public class LinkedSerializer extends JsonSerializer<Object> {
    
    private static final Pattern PARAM_PATTERN = Pattern.compile("\\{(.+?)\\}");

    @Override
    public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
        Linked linked = value.getClass().getAnnotation(Linked.class);    
        if (linked == null) {
            jgen.writeNull();
            return;

lefloh

import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.net.BindException;
import java.net.InetAddress;

import org.ice4j.Transport;
import org.ice4j.TransportAddress;
import org.ice4j.ice.Agent;
import org.ice4j.ice.Component;

lefloh

public class Product {
  private Long id;
  private String name;
  private Brand brand;
}

public class Brand {
  private Long id;
  private String name;
}

lefloh

{
  "id": 4711,
  "name": "iPhone",
  "brand": {
    "id": 1174,
    "name": "Apple"
  }
}

lefloh

{
  "id": 4711,
  "name": "iPhone",
  "brand": {
    "rel": "brand",
    "href": "http://foo.bar.com/brands/1174"
  }
}

lefloh

Keybase proof

I hereby claim:

• I am lefloh on github.
• I am lefloh (https://keybase.io/lefloh) on keybase.
• I have a public key whose fingerprint is D227 63CD 4436 14D4 DAAD EC68 8ED9 9EE7 0F85 6738

To claim this, I am signing this object:

lefloh

08:04:35,731 ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-1) RESTEASY002010: Failed to execute: javax.ws.rs.WebApplicationException: No customer with id 4711 found
 at com.foo.bar.CustomerResource.get(CustomerResource.java:48)
 at com.foo.bar.CustomerResource$Proxy$_$$_WeldClientProxy.get(Unknown Source)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:498)
 at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:139)
 at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:295)
 at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:249)

lefloh

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;

@Provider
public class WebApplicationExceptionMapper implements ExceptionMapper<WebApplicationException> {

lefloh

public Customer getCustomer(@PathParam("id") long id, @Context UriInfo uriInfo) {
    Optional<Customer> customer = findCustomer(id);
    if (!customer.isPresent()) {
        throw new NotFoundException(
                String.format("No customer with id %d found. RequestUri was %s",
                id, uriInfo.getRequestUri()));
    }
    return customer.get();
}