Software Architecture in Java: Design & Development/

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Develop the Presentation Tier

Develop the Presentation Tier

This is the final step in the service development process.

We'll cover the following...

REST-based Spring Controller

The final level in the stack is the REST-based Spring Controller. First, we will look at how to write the test and then follow it with the corresponding controller.

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@RunWith(SpringJUnit4ClassRunner.class)

@WebAppConfiguration

@ContextConfiguration( locations = { "classpath:context.xml" } )

@TransactionConfiguration(defaultRollback = true)

@Transactional

public class EstateControllerTest {

	

	private Gson gson = new GsonBuilder().create();

	

	@Resource

	private WebApplicationContext webApplicationContext;



	private MockMvc mockMvc;



	@Before

	public void setUp() {

		mockMvc = MockMvcBuilders.<StandaloneMockMvcBuilder>webAppContextSetup

(webApplicationContext).build();

	}

	

	@Test

	public void testAll() throws Exception {

		testCreate();

		testUpdate();

		testDelete();

	}



	public void testCreate() throws Exception {

		

		EstateDto estateDto = new BuildingDto();

		estateDto.setName("ABC");		

		((BuildingDto)estateDto).setFloors(20);

		String json = gson.toJson(estateDto);

		json= json.replace("{", "");

		json= json.replace("}", "");

		json = "{\"type\":\"building\","+json+"}";

		MockHttpServletRequestBuilder requestBuilderOne = MockMvcRequestBuilders.post("/concretetableinheritance/create");

		requestBuilderOne.contentType(MediaType.APPLICATION_JSON);

		requestBuilderOne.content(json.getBytes());

		this.mockMvc.perform(requestBuilderOne).andExpect(MockMvcResultMatchers.status().isOk());

	}

	

	public void testUpdate() throws Exception {

		

		MockHttpServletRequestBuilder requestBuilder2 = MockMvcRequestBuilders.get("/concretetableinheritance/findAll");

		MvcResult result = this.mockMvc.perform(requestBuilder2).andReturn();

		String response2 = result.getResponse().getContentAsString();

		

		Type listType = new TypeToken<EstateDto[]>() {}.getType();

		EstateDto[] estateDtoList = gson.fromJson(response2, listType);

		EstateDto estateDto2 = estateDtoList[0];

		

		EstateDto newEstateDto = new BuildingDto();

		newEstateDto.setId(estateDto2.getId());

		newEstateDto.setName("DEF");		

		((BuildingDto)newEstateDto).setFloors(21);

		

		String json2 = gson.toJson(newEstateDto);

		json2= json2.replace("{", "");

		json2= json2.replace("}", "");

		json2 = "{\"type\":\"building\","+json2+"}";

		MockHttpServletRequestBuilder requestBuilder3 = MockMvcRequestBuilders.post("/concretetableinheritance/edit");

		requestBuilder3.contentType(MediaType.APPLICATION_JSON);

		requestBuilder3.content(json2.getBytes());

		this.mockMvc.perform(requestBuilder3).andExpect(MockMvcResultMatchers.status().isOk());

	}



	public void testDelete() throws Exception {

		

		MockHttpServletRequestBuilder requestBuilder2 = MockMvcRequestBuilders.get("/concretetableinheritance/findAll");

		MvcResult result = this.mockMvc.perform(requestBuilder2).andReturn();

		String response2 = result.getResponse().getContentAsString();

		

		Type listType = new TypeToken<EstateDto[]>() {}.getType();

		EstateDto[] estateDtoList = gson.fromJson(response2, listType);

		EstateDto estateDto2 = estateDtoList[0];		

		MockHttpServletRequestBuilder requestBuilder3 = MockMvcRequestBuilders.post("/concretetableinheritance/remove/"+estateDto2.getId());

		requestBuilder3.contentType(MediaType.APPLICATION_JSON);

		this.mockMvc.perform(requestBuilder3).andExpect(MockMvcResultMatchers.status().is(204));

	}

}
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