@POST
    @Path("{networkId}/devices")
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Response createVirtualDevice(@PathParam("networkId") long networkId,
                                        InputStream stream) {
        try {
            ObjectNode jsonTree = readTreeFromStream(mapper(), stream);
            final VirtualDevice vdevReq = codec(VirtualDevice.class).decode(jsonTree, this);
            JsonNode specifiedNetworkId = jsonTree.get("networkId");
            if (specifiedNetworkId == null || specifiedNetworkId.asLong() != (networkId)) {
                throw new IllegalArgumentException(INVALID_FIELD + "networkId");
            }
            final VirtualDevice vdevRes = vnetAdminService.createVirtualDevice(vdevReq.networkId(),
                                                                               vdevReq.id());
            UriBuilder locationBuilder = uriInfo.getBaseUriBuilder()
                    .path("vnets").path(specifiedNetworkId.asText())
                    .path("devices").path(vdevRes.id().toString());
            return Response
                    .created(locationBuilder.build())
                    .build();
        } catch (IOException e) {
            throw new IllegalArgumentException(e);
        }
    }
@Test
    public void testPostVirtualDevice() {
        NetworkId networkId = networkId3;
        DeviceId deviceId = devId2;
        expect(mockVnetAdminService.createVirtualDevice(networkId, deviceId)).andReturn(vdev2);
        expectLastCall();

        replay(mockVnetAdminService);

        WebTarget wt = target();
        InputStream jsonStream = VirtualNetworkWebResourceTest.class
                .getResourceAsStream("post-virtual-device.json");
        String reqLocation = "vnets/" + networkId.toString() + "/devices";
        Response response = wt.path(reqLocation).request(MediaType.APPLICATION_JSON_TYPE)
                .post(Entity.json(jsonStream));
        assertThat(response.getStatus(), is(HttpURLConnection.HTTP_CREATED));

        String location = response.getLocation().getPath();
        assertThat(location, Matchers.startsWith("/" + reqLocation + "/" + vdev2.id().toString()));

        verify(mockVnetAdminService);
    }