hateos.java

    @Test
    public void testStartDeployedThing() throws Exception
    {
        // find the deployment url
        _Root root = http.prepareGet("http://localhost:25365/")
                         .setHeader("accept", MediaType.APPLICATION_JSON)
                         .execute(new JsonMappingAsyncHandler<_Root>(_Root.class)).get();
        _Action deploy = Iterables.find(root._actions, fieldEquals("rel", "deploy"));

        // perform a deployment against it
        _DeployedSlot c = http.preparePost(deploy.uri)
                              .setHeader("content-type", MediaType.APPLICATION_JSON)
                              .setBody(mapper.writeValueAsString(new _Deploy()))
                              .execute(new JsonMappingAsyncHandler<_DeployedSlot>(_DeployedSlot.class))
                              .get();

        // start the deployed thing
        _Action start = Iterables.find(c._actions, fieldEquals("rel", "start"));
        assertThat(start.method, equalTo("POST"));
        assertThat(start.params, equalTo(Collections.<String, String>emptyMap()));

        Response start_response = http.preparePost(start.uri)
                                      .execute()
                                      .get();

        // http client does not follow redirects correctly, so we
        // need to hardcode following the see other :-(
        assertThat(start_response.getStatusCode(), isHttpRedirect());
        String slot_uri = start_response.getHeader("location");

        // check to make sure the deployed thing is now running
        _DeployedSlot started = http.prepareGet(slot_uri)
                                    .setHeader("accept", MediaType.APPLICATION_JSON)
                                    .execute(new JsonMappingAsyncHandler<_DeployedSlot>(_DeployedSlot.class))
                                    .get();
        assertThat(started.slot.running, equalTo(true));
    }

Part of integration/acceptance test suite for https://github.com/brianm/sculptor (which has no readme as it is not ready for general consumption :-)

_Foo is a convention I use for throwaway classes, in this case for things which exist solely for jackson to map json into for this test. It largely prevents them showing up with IDEA's go to class behavior.

Nice, very readable. Have you thought of how to add abstractions for retries, or generalized error handling?