I have the following code which attempts to save a POJO object (Actor) into MongoDB using Spring Mongo Repository, but the repository object is always Null. I have followed multiple examples but mainly this one
The POJO class:
#Document(collection = "actors")
public class Actor
{
#Id
private String id;
...
//constructor
//setters & getters
}
The repository:
public interface ActorRepository extends MongoRepository<Actor, String>
{
public Actor findByFNameAndLName(String fName, String lName);
public Actor findByFName (String fName);
public Actor findByLName(String lName);
}
The service that uses the repository:
#Service
public class ActorService
{
#Autowired
private ActorRepository actorRepository;
public Actor insert(Actor a)
{
a.setId(null);
return actorRepository.save(a);
}
}
And I access the service from a REST controller class:
#RestController
public class Controllers
{
private static final Logger logger = Logger.getLogger(Controllers.class);
private static final ApplicationContext ctx = new AnnotationConfigApplicationContext(SpringMongoConfig.class);
private ActorService actorService = new ActorService();
#RequestMapping(value="/createActor", method=RequestMethod.POST)
public #ResponseBody String createActor(#RequestParam(value = "fName") String fName,
#RequestParam(value = "lName") String lName,
#RequestParam(value = "role") String role)
{
return actorService.insert(new Actor(null,fName,lName,role)).toString();
}
...
}
The error that I get is NullPointerException from this line: return actorRepository.save(a); in the ActorService.insert() method.
Any Idea why is this happening?
EDIT: Here is the Spring Configurations
#Configuration
public class SpringMongoConfig extends AbstractMongoConfiguration
{
#Bean
public GridFsTemplate gridFsTemplate() throws Exception
{
return new GridFsTemplate(mongoDbFactory(), mappingMongoConverter());
}
#Override
protected String getDatabaseName()
{
return "SEaaS";
}
#Override
#Bean
public Mongo mongo() throws Exception
{
return new MongoClient("localhost" , 27017 );
}
public #Bean MongoTemplate mongoTemplate() throws Exception
{
return new MongoTemplate(mongo(), getDatabaseName());
}
}
The problem is that you are not using Spring to get the ActorService dependency -instead you have manually instantiated the dependency using
private ActorService actorService = new ActorService();.
The following code is the easiest fix in order to inject the ActorService dependency into the controller.
#RestController
public class Controllers
{
private static final Logger logger = Logger.getLogger(Controllers.class);
private static final ApplicationContext ctx = new AnnotationConfigApplicationContext(SpringMongoConfig.class);
#Autowired
private ActorService actorService;
#RequestMapping(value="/createActor", method=RequestMethod.POST)
public #ResponseBody String createActor(#RequestParam(value = "fName") String fName,
#RequestParam(value = "lName") String lName,
#RequestParam(value = "role") String role)
{
return actorService.insert(new Actor(null,fName,lName,role)).toString();
}
...
}
Related
I have a mongodb springboot application that is connected to 2 different databases, that have the same collection names and database names but different uris.
Here is my application.properties
spring.data.mongodb.uri = uri
spring.data.mongodb.secondDB.uri = uri
spring.data.mongodb.database = database_name
spring.data.mongodb.secondDB.database = database_name
My AppConfiguration file
#Configuration
public class MultipleMongoConfig {
#Primary
#Bean(name = "newdb1Properties")
#ConfigurationProperties(prefix = "spring.data.mongodb")
public MongoProperties getNewDb1Props() throws Exception {
return new MongoProperties();
}
#Bean(name = "newdb2Properties")
#ConfigurationProperties(prefix = "spring.data.mongodb.secondDB")
public MongoProperties getNewDb2Props() throws Exception {
return new MongoProperties();
}
#Primary
#Bean(name = "newdb1MongoTemplate")
public MongoTemplate newdb1MongoTemplate() throws Exception {
return new MongoTemplate(newdb1MongoDatabaseFactory(getNewDb1Props()));
}
#Bean(name ="newdb2MongoTemplate")
public MongoTemplate newdb2MongoTemplate() throws Exception {
return new MongoTemplate(newdb2MongoDatabaseFactory(getNewDb2Props()));
}
#Primary
#Bean
public MongoDatabaseFactory newdb1MongoDatabaseFactory(MongoProperties mongo) throws Exception {
return new SimpleMongoClientDatabaseFactory(
mongo.getUri()
);
}
#Bean
public MongoDatabaseFactory newdb2MongoDatabaseFactory(MongoProperties mongo) throws Exception {
return new SimpleMongoClientDatabaseFactory(
mongo.getUri()
);
}
Then I set up config files for each data source
#Configuration
#EnableMongoRepositories(basePackages = {"com.example.app.firstDatabse.Repository"},
mongoTemplateRef = "newdb1MongoTemplate"
)
public class NewDb1Config {
}
and
#Configuration
#EnableMongoRepositories(basePackages = {"com.example.app.secondDatabse.Repository"},
mongoTemplateRef = "newdb2MongoTemplate"
)
public class NewDb1Config {
}
For Model I have the following
#AllArgsConstructor
#NoArgsConstructor
#ToSting
#Document(collection = "coll")
public class FirstModel{
#Id
public String id;
#Field("f_name")
public String firstName;
#Field("l_name")
public String lastName;
#Field("age")
public int age;
#Field("gender")
public String gender;
}
and my second Model is the same
#AllArgsConstructor
#NoArgsConstructor
#ToSting
#Document(collection = "coll")
public class SecondModel{
#Id
public String id;
#Field("f_name")
public String firstName;
#Field("l_name")
public String lastName;
#Field("age")
public int age;
#Field("gender")
public String gender;
}
My controller
#ResController
#RequestMapping("/controller")
public class Controller{
#Autowired
private FirstDataabseRepository repo;
#Autowired
private SecondDataabseRepository repo;
#Resource
private MongoTemplate mongoTemplate;
#RequestMapping("/findByName")
public List<SecondModel> findByName(){
Criteria criteria = new Criteria();
criteria = Criteria.where("f_name").is("John");
Query q = new Query(criteria);
List<SecondModel> results = mongoTemplate.find(q,SecondModel.class);
return results;
}
}
So the results show the results of the first collection not the second one. What do I need to do for mongoTemplate to query the second collection not the first one.
Solution
I have to add a qualifier and have a mongoTemplate for each collection
#ResController
#RequestMapping("/controller")
public class Controller{
#Autowired
private FirstDataabseRepository repo;
#Autowired
private SecondDataabseRepository repo;
#Resource
#Qualifier(value="newdb1MongoTemplate")
private MongoTemplate mongoTemplate;
#Resource
#Qualifier(value="newdb2MongoTemplate")
private MongoTemplate mTemplate;
#RequestMapping("/findByName")
public List<SecondModel> findByName(){
Criteria criteria = new Criteria();
criteria = Criteria.where("f_name").is("John");
Query q = new Query(criteria);
List<SecondModel> results = mTemplate.find(q,SecondModel.class);
return results;
}
}
I have a spring boot REST API with a GET method that returns data available in a DB. I am attempting to write an integration test to test this API method. I have configured the test to use the H2 database. I am trying to add some mock data to the database before the test is executed and see if the API retrieves that data. Following is the code I have written so far.
#RunWith(SpringRunner.class)
#SpringBootTest
#AutoConfigureMockMvc
#TestPropertySource(locations = "classpath:application-test.properties")
public class MetaControllerTest {
#Autowired
private MockMvc mvc;
#Autowired
private ProvinceDAO provinceDAO;
#Transactional
#Before
public void addData () {
Province southern = getProvinceEntity("Southern", "දකුණ", "தென்");
provinceDAO.createEntity(southern);
System.out.println(provinceDAO.findAll(Province.class).size());
}
#Test
public void testGetProvinces() throws Exception {
MvcResult result = mvc.perform(get("/meta/provinces"))
.andExpect(status().isOk())
.andExpect(content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON))
.andReturn();
System.out.println(result.getResponse().getContentAsString());
}
}
However, when I run this code, I am getting an error saying "org.springframework.dao.InvalidDataAccessApiUsageException: No transactional EntityManager available; nested exception is java.lang.IllegalStateException: No transactional EntityManager available"
I have also attempted using #MockBean instead of #Autowired to bind the provinceDAO. Even though this prevents the error, it does not persist the entity in the database.
How should I write my testcase to test my method here?
Update:
application-test.properties
spring.datasource.url = jdbc:h2:mem:test
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.H2Dialect
Entity -> Province.java
#Entity
#Table(name = "w4a_province")
public class Province {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private int id;
#Column(name = "province_name")
private String name;
#Column(name = "province_name_si")
private String nameSi;
#Column(name = "province_name_ta")
private String nameTa;
.
.
}
GenericDAO.java
#Repository
public class GenericDAO<T> implements IGenericDAO<T> {
#PersistenceContext
private EntityManager em;
#Override
public Session getCurrentSession() {
return this.em.unwrap(Session.class);
}
#Override
public T findByPrimaryKey(Class<T> clazz, Object primaryKey) {
return getCurrentSession().find(clazz, primaryKey);
}
#Override
public List<T> findAll(Class<T> clazz) {
DetachedCriteria criteria = DetachedCriteria.forClass(clazz);
return criteria.getExecutableCriteria(getCurrentSession()).list();
}
#Override
public T createEntity(T entity) {
getCurrentSession().save(entity);
return entity;
}
ProvinceDAOImpl.java
#Repository
public class ProvinceDAOImpl extends GenericDAO<Province> implements ProvinceDAO {
}
MetaController.java
#RestController
#PreAuthorize("permitAll()")
public class MetaController {
private final MetaService metaService;
#Autowired
public MetaController(MetaService metService) {
this.metaService = metService;
}
#GetMapping("/meta/provinces")
public ResponseEntity<List<ProvinceDTO>> getProvinces() {
if (logger.isDebugEnabled()) {
logger.debug("Retrieving list of provinces.");
}
List<ProvinceDTO> provinces = metaService.getProvinces();
return ResponseEntity.ok(provinces);
}
}
MetaServiceImpl.java
#Service
#Transactional
public class MetaServiceImpl implements MetaService {
private final ProvinceDAO provinceDAO;
#Autowired
public MetaServiceImpl(ProvinceDAO provnceDAO) {
this.provinceDAO = provnceDAO;
}
public List<ProvinceDTO> getProvinces() {
if (logger.isDebugEnabled()) {
logger.debug("Obtaining a list of provinces from database.");
}
List<Province> entities = provinceDAO.findAll(Province.class);
if (logger.isDebugEnabled()) {
logger.debug("Converting province entities to dtos.");
}
List<ProvinceDTO> dtos = new ArrayList<>();
for (int i = 0; i < entities.size(); i++) {
Province entity = entities.get(i);
if (LocaleContextHolder.getLocale().getLanguage().equals(
GlobalConstants.LanguageIdentifiers.SINHALA_LANGUAGE_TAG)) {
dtos.add(new ProvinceDTO(entity.getId(), entity.getNameSi()));
} else if (LocaleContextHolder.getLocale().getLanguage().equals(
GlobalConstants.LanguageIdentifiers.TAMIL_LANGUAGE_TAG)) {
dtos.add(new ProvinceDTO(entity.getId(), entity.getNameTa()));
} else {
dtos.add(new ProvinceDTO(entity.getId(), entity.getName()));
}
}
return dtos;
}
}
I managed to feed the database with the required data by placing a SQL script data-h2.sql with insert queries at the test/resources folder. This prevented the requirement to use an EntityManager or a DAO.
Furthermore, I added the following property to the application-test.properties file.
spring.datasource.platform=h2
In Order to test Rest Api You can try functional test as well as integration test.
You can prepare your own response formate as required and check whether the same is returned or else you can also verify whether the data from db is fine or not.Plz check the below example
#RunWith(SpringJUnit4ClassRunner.class)
#SpringBootTest(classes = FactsMain.class)
#WebAppConfiguration
public abstract class BaseTest {
protected MockMvc mvc;
#Autowired
WebApplicationContext webApplicationContext;
protected void setUp() {
mvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
}
protected String mapToJson(Object obj) throws JsonProcessingException {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.writeValueAsString(obj);
}
protected <T> T mapFromJson(String json, Class<T> clazz)
throws JsonParseException, JsonMappingException, IOException {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.readValue(json, clazz);
}
}
In First test case i am forming the response format and trying to return the same and then validating the same.Here i don't need the db data so i have kept service as mock instead of auto wired.And used ObjectMapper for converting json to java and then java obj to json from base Test class.
public class PersonalDetailsControllerTest extends BaseTest {
#MockBean
private IPersonalService service;
private static final String URI = "/api/personalDetails";
#Override
#Before
public void setUp() {
super.setUp();
}
#Test
public void testGet() throws Exception {
PersonalDetailsEntity entity = new PersonalDetailsEntity();
List<PersonalDetailsEntity> dataList = new ArrayList<PersonalDetailsEntity>();
FactsAdminResponse<PersonalDetailsEntity> dataResponse = new FactsAdminResponse<PersonalDetailsEntity>();
entity.setId(1);
entity.setName(“Anthony Holmes”);
entity.setAge(26);
entity.setCity(“Banglore”);
entity.setCountry(“India”);
dataList.add(entity);
dataResponse.setData(dataList);
Mockito.when(service.getBuildings()).thenReturn(dataList);
RequestBuilder requestBuilder = MockMvcRequestBuilders.get(URI)
.accept(MediaType.APPLICATION_JSON);
MvcResult mvcResult = mvc.perform(requestBuilder).andReturn();
MockHttpServletResponse response = mvcResult.getResponse();
String expectedJson = this.mapToJson(dataResponse);
String outputInJson = mvcResult.getResponse().getContentAsString();
assertEquals(HttpStatus.OK.value(), response.getStatus());
assertEquals(expectedJson, outputInJson);
}
}
In below case we are getting the actual data in json format as we are doing rest api call and then just validating the status apart from status you can also cross check the data
public class PersonalDetailsControllerTest extends BaseTest {
private static final String URI = "/api/personalDetails";
#Override
#Before
public void setUp() {
super.setUp();
}
#Test
public void getGet() throws Exception {
MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.get(URL)
.accept(MediaType.APPLICATION_JSON_VALUE)).andReturn();
int status = mvcResult.getResponse().getStatus();
assertEquals(200, status);
String content = mvcResult.getResponse().getContentAsString();
//you got the content in string format now you can also validate the data
}
In here I have configured two databases in mongodb. As described in this tutorial (link). So basically I override the MongoDataAutoConfiguration and MongoProperties implementations.
The property yml file :
spring:
autoconfigure:
exclude:
org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration
mongodb:
primary:
host: 127.0.0.1
port: 27017
database: db_admin_crm
secondary:
host: 127.0.0.1
port: 27017
database: lead_forms
MultipleMongoProperties class :
#Data
#ConfigurationProperties(prefix = "mongodb")
public class MultipleMongoProperties {
private MongoProperties primary = new MongoProperties();
private MongoProperties secondary = new MongoProperties();
//getters and setters
}
MultipleMongoConfig class :
#Configuration
#RequiredArgsConstructor
#EnableConfigurationProperties(MultipleMongoProperties.class)
public class MultipleMongoConfig {
#Autowired
private final MultipleMongoProperties mongoProperties;
public MultipleMongoConfig() {
mongoProperties = null;
}
#Primary
#Bean(name = "primaryMongoTemplate")
public MongoTemplate primaryMongoTemplate() throws Exception {
return new MongoTemplate(primaryFactory(this.mongoProperties.getPrimary()));
}
#Bean(name = "secondaryMongoTemplate")
public MongoTemplate secondaryMongoTemplate() throws Exception {
return new MongoTemplate(secondaryFactory(this.mongoProperties.getSecondary()));
}
#Bean
#Primary
public MongoDbFactory primaryFactory(final MongoProperties mongo) throws Exception {
return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()),
mongo.getDatabase());
}
#Bean
public MongoDbFactory secondaryFactory(final MongoProperties mongo) throws Exception {
return new SimpleMongoDbFactory(new MongoClient(mongo.getHost(), mongo.getPort()),
mongo.getDatabase());
}
}
PrimaryMongoConfig :
#Configuration
#EnableMongoRepositories(basePackages = "io.crm.service.repositories",
mongoTemplateRef = "primaryMongoTemplate")
public class PrimaryMongoConfig{
}
SecondaryMongoConfig :
#Configuration
#EnableMongoRepositories(basePackages = "io.crm.service.repositories.report.repositories",
mongoTemplateRef = "secondaryMongoTemplate")
public class SecondaryMongoConfig {
}
The Repository class :
#RepositoryRestResource(collectionResourceRel = "users",path = "users",excerptProjection = UserProjection.class)
public interface UserRepository extends MongoRepository<User, String> {
}
User model class :
#Id
private String id;
private String email;
private String name;
private String businessName;
private String phone;
private String address;
#DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)
private Date createdTime;
#DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)
private Date updatedTime;
#Field("bookletSignUps")
#DBRef
private List<BookletSignUp> bookletSignUps;
#Field("eventSignUps")
#DBRef
private List<EventSignUp> eventSignUps;
#Field("infoSignUps")
#DBRef
private List<InfoSignUp> infoSignUps;
#Field("webinarSignUps")
#DBRef
private List<WebinarSignUp> webinarSignUps;
The projection :
#Projection(name = "userExcerpt", types = User.class)
public interface UserProjection {
String getId();
String getName();
String getEmail();
String getBusinessName();
String getPhone();
String getAddress();
Date getCreatedTime();
Date getUpdatedTime();
List<BookletSignUp> getBookletSignUps();
List<EventSignUp> getEventSignUps();
List<InfoSignUp> getInfoSignUps();
List<WebinarSignUp> getWebinarSignUps();
}
But when im trying to do a GET request to the REST endpoint http://localhost:9090/users/ im getting java.lang.IllegalArgumentException: Couldn't find PersistentEntity for type class io.crm.service.models.User! exception here. What could be gone wrong here? Ideas will be very much appreciated. Thanks in advance.
I am completely new to Mockito and I have to write a test case for my REST Controller, but I am not sure where should I start. Any help would be really appreciated.I've updated my controller based on given suggestion.
Here's my controller:
#RestController
#RequestMapping("/api")
public class TestController {
#Autowired
TestService _testService;
#RequestMapping(value = "/getsearchDetailCourse", method = RequestMethod.GET)
public List<TestDto> getsearchDetailCourse(#RequestParam("courseName") String courseName,
#RequestParam("courseId") Long courseId) throws Exception {
return (List<TestDto>) _testService.searchDetailCourse(courseName, courseId);
}
}
My TestDto:
public class TestDto {
private String numberOfCourse;
private Long courseId;
public TestDto(){}
public TestDto(String numberOfCourse,Long courseId ){
super();
this.numberOfCourse = numberOfCourse;
this.courseId = courseId;
}
public String getNumberOfCourse() {
return numberOfCourse;
}
public void setNumberOfCourse(String numberOfCourse) {
this.numberOfCourse = numberOfCourse;
}
public Long getCourseId() {
return courseId;
}
public void setCourseId(Long courseId) {
this.courseId = courseId;
}
}
Here's my test:
#RunWith(SpringRunner.class)
#WebMvcTest(value = TestController.class, secure = false)
public class TestMethod {
#Autowired
private MockMvc mockMvc;
#MockBean
private TestService testService;
TestDto testDto = new testDto("Test",2744L);
#Test
public void retrieveDetailsForCourse() throws Exception {
Mockito.when(
testService.searchDetailCourse(Mockito.anyString(),
,Mockito.anyLong())).thenReturn(testDto);
RequestBuilder requestBuilder = MockMvcRequestBuilders.get(
"/api/getsearchDetailCourse").accept(
MediaType.APPLICATION_JSON);
MvcResult result = mockMvc.perform(requestBuilder).andReturn();
System.out.println(result.getResponse());
String expected = "[{\"numberOfCourse\":\"Testing1\",\"courseId\":2744},{\"numberOfCourse\":\"Testing2\",\"courseId\":2744}]";
JSONAssert.assertEquals(expected, result.getResponse()
.getContentAsString(), false);
}
}
I want to test the controller, please help me correct the test case above.
I am trying to upload json data and image to a database of a form using spring rest and hibernate. I tried to test it using POSTMAN by setting form-data in body and content-type as application/json in header, but i am getting http error 400. I also tried using #RequestPart but didnt not work. I searched but could not find an example using ResponseEnity<>. I think i am doing something wrong in controller class. Please someone help me.
Without the file part i am able to add json data to db using this.
#RequestMapping(value = "/users", method = RequestMethod.POST, produces ="application/json")
public ResponseEntity<User> createAparts( #RequestBody User user) {
if (user == null) {
return new ResponseEntity<User>(HttpStatus.BAD_REQUEST);
}
userService.addAparts(user);
return new ResponseEntity<User>(user, HttpStatus.CREATED);
}
Below are the related code to issue.
model
#Entity
#Table(name = "User")
#JsonIgnoreProperties({"hibernateLazyInitializer", "handler", "ignoreUnknown = true"})
public class User{
#Id
#Column(name = "id")
#GeneratedValue(strategy=GenerationType.IDENTITY)
private int id;
#Column(name = "Name")
private String Name;
#Column(name = "file_data")
private byte[] file_data;
#Column(name = "filename")
private String filename;
#JsonCreator
public ApartsData(#JsonProperty("id") int id,
#JsonProperty("Name") String Name,
#JsonProperty("filename") String filename,
#JsonProperty("file_data") byte[] file_data){
this.ad_id = ad_id;
this.Name = Name;
this.filename= filename;
this.file_data = file_data;
}
public User(){
}
DAO
#Repository
public class UserDaoImpl implements UserDao{
private SessionFactory sessionFactory;
public void setSessionFactory(SessionFactory sessionFactory){
this.sessionFactory = sessionFactory;
}
#Override
public void addUser(User user) {
Session session = this.sessionFactory.getCurrentSession();
session.persist(user);
}
}
Service
#Service
public class UserServiceImpl implements UserService {
private UserDao userDao;
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
#Override
#Transactional
public void addUser(User user) {
this.userDao.addUser(user);
}
}
controller
#RestController
public class UserController {
private UserService userService;
#Autowired(required=true)
#Qualifier(value="userService")
public void setUserService(UserService userService){
this.userService = userService;
}
#RequestMapping(value = "/users", method = RequestMethod.POST,
produces ="application/json")
public ResponseEntity<User> createApartsData(#RequestBody User user,
#RequestParam("file") MultipartFile file) {
HttpHeaders headers = new HttpHeaders();
if (user == null) {
return new ResponseEntity<User>(HttpStatus.BAD_REQUEST);
}
if (!file.isEmpty()) {
try {
user.setFilename(file.getOriginalFilename());
user.setFile_data(file.getBytes());
} catch (Exception e){
e.printStackTrace();
}
}
userService.addUser(user);
headers.add("User Created - ", String.valueOf(user.getid()));
return new ResponseEntity<User>(user, headers, HttpStatus.CREATED);
}
}
UPDATE:
I am able to make it work with #RequestParam. Please some help me to make it work with #RequestBody