I'm using Jackson to serialise My Rest Api
POJO :
#Data
#Entity
#NoArgsConstructor
#AllArgsConstructor
#JsonTypeInfo(include= JsonTypeInfo.As.WRAPPER_OBJECT,use= JsonTypeInfo.Id.NAME)
public class Project implements Serializable {
#Id #GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String projectName;
private String resource;
#ManyToMany
private List<Collaborator> collaborators;
#JsonIgnore
#OneToMany(mappedBy = "project",cascade = CascadeType.ALL)
private List<Task> tasks;
public Project(String projectName, String resource) {
this.projectName = projectName;
this.resource = resource;
}
}
output:
{
"id": 1,
"dateDebut": "2022-05-31T13:14:39.091+00:00",
"dateFin": "2022-05-31T13:14:39.091+00:00",
"project": {
"Project": {
"id": 2,
"projectName": "project Suivi Activite 2",
"resource": "resource 2",
"collaborators": []
}
},
"collaborator": null,
"days": []
}
how can i avoid field "Project" inside "project" ?
#JsonTypeInfo(include= JsonTypeInfo.As.WRAPPER_OBJECT,use= JsonTypeInfo.Id.NAME) ?
Related
Problem summary
I am getting unrelated data from the Many-to-Many With a New Entity concept for the first two cases.
Fetching a particular company and associated users of the company.
Fetching particular user and associated company.
Not able to feth company and user whose company status is not equal to 3 (CompanyStatus=1 "Pending" ,CompanyStatus=2 "Other",CompanyStatus=1 "Active")
To work on this Many-to-Many With a New Entity concept I have used Company, User, and CompanyUserMapping as an entity.
The blog that I have referred https://www.baeldung.com/jpa-many-to-many section 4.2
As mentioned above I have created Company, User, and CompanyUserMapping as below
Company
#Getter
#Setter
#Entity
public class Company {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long companyId;
private String companyName;
private String companyDescription;
private String companyWebsite;
private String companyEmailDomain;
private Integer companyTypeID;
private Integer numberOfEmployeesID;
private String companyLogo;
private Integer companyStatus;
private Boolean active;
#OneToMany(mappedBy = "company",fetch = FetchType.EAGER)
Set<CompanyUserMapping> companyUserMapping;
}
User
#Getter
#Setter
#Entity
public class User {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long userId;
private String firstName;
private String lastName;
private String email;
private String encryptedEmail;
private String username;
private String password;
private String userStatus;
private String guid;
private Boolean isNotlocked;
private Date lastLogin;
private String profilePic;
#OneToMany(mappedBy = "user",fetch = FetchType.EAGER)
Set<CompanyUserMapping> companyUserMapping;
}
CompanyUserMapping
#Getter
#Setter
#Entity
public class CompanyUserMapping {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long companyUserMappingId;
#ManyToOne(cascade = CascadeType.ALL)
#JoinColumn(name = "company_id")
private Company company;
#ManyToOne(cascade = CascadeType.ALL,fetch = FetchType.EAGER)
#JoinColumn(name = "user_id")
private User user;
private String role;
private String [] authorities;
private boolean isExternal;
private boolean isActive;
private Long customerId;
}
Then I inserted two companies and a user in each of them. Then I have also inserted a common user for both of the companies.
{
"companyId": 1,
"companyName": "ABC company",
"companyUsers": [
{
"companyUserMappingId": 1,
"company": 1,
"user": {
"userId": 1,
"email": "sachintendulkar#gmail.com",
"companyUserMapping": [
1
]
},
"active": true,
"external": false
},
{
"companyUserMappingId": 3,
"company": 1,
"user": {
"userId": 3,
"email": "shanewarne#gmail.com",
"companyUserMapping": [
3,
{
"companyUserMappingId": 4,
"company": {
"companyId": 2,
"companyName": "XYZ company",
"companyUsers": [
{
"companyUserMappingId": 2,
"company": 2,
"user": {
"userId": 2,
"email": "sehwag#gmail.com",
"companyUserMapping": [
2
]
},
"active": true,
"external": false
},
4
]
},
"user": 3,
"active": true,
"external": false
}
]
},
"active": true,
"external": false
}
]
}
In the above JSON, ABC and XYZ are two companies and a common user for both of the companies is shanewarne#gmail.com
As mentioned in the summary If I try to pull a particular company(ABC company) and associated users, it also brings another company and users which is unrelated.
To resolve this problem I have Implemented like below
public CompanyDto getConsolidatedCompanyData(Long companyId) {
Company existingCompany = companyRepository.findById(companyId).orElseThrow(() -> new ResourceNotFoundException("Company not found for the companyId :: "+companyId));
CompanyDto companyDto=new CompanyDto();
companyDto.setCompanyId(existingCompany.getCompanyId());
companyDto.setCompanyName(existingCompany.getCompanyName());
Set<CompanyUserMappingDto> companyUserMappingDtoList=new LinkedHashSet<>();
Set<CompanyUserMapping> companyUserMappingList=existingCompany.getCompanyUserMapping();
for (CompanyUserMapping cum : companyUserMappingList) {
CompanyUserMappingDto companyUserMappingDto=new CompanyUserMappingDto();
companyUserMappingDto.setCompanyUserMappingId(cum.getCompanyUserMappingId());
CompanyUserDto cdto=new CompanyUserDto();
cdto.setUserId(cum.getUser().getUserId());
cdto.setEmail(cum.getUser().getEmail());
companyUserMappingDto.setUser(cdto);
companyUserMappingDto.setActive(cum.isActive());
companyUserMappingDto.setExternal(cum.isExternal());
companyUserMappingDtoList.add(companyUserMappingDto);
}
companyDto.setAssociatedUsers(companyUserMappingDtoList);
return companyDto;
}
In the same way, if I try to fetch a particular user and associated company I am getting related data so I have implemented code
private UserDto getConslidatedUserData(Long userId) {
User existingUser = userRepository.findById(userId).orElseThrow(() -> new ResourceNotFoundException("User not found for the userId :: "+userId));
Set<UserCompanyMappingDto> associatedCompanies=new HashSet<>();
UserDto userDto=new UserDto();
userDto.setUserId(existingUser.getUserId());
userDto.setEmail(existingUser.getEmail());
Set<CompanyUserMapping> companyUserMapping=existingUser.getCompanyUserMapping();
for (CompanyUserMapping companyUserMapping2 : companyUserMapping) {
UserCompanyMappingDto userCompanyMappingDto=new UserCompanyMappingDto();
userCompanyMappingDto.setCompanyUserMappingId(companyUserMapping2.getCompanyUserMappingId());
UserCompanyDto userCompanyDto=new UserCompanyDto();
userCompanyDto.setCompanyId(companyUserMapping2.getCompany().getCompanyId());
userCompanyDto.setCompanyName(companyUserMapping2.getCompany().getCompanyName());
userCompanyMappingDto.setCompany(userCompanyDto);
associatedCompanies.add(userCompanyMappingDto);
}
userDto.setAssociatedCompanies(associatedCompanies);
return userDto;
}
Do I need to improvise Implementation for the first two cases?
I am building a Spring Rest Application, I need help with DTO's and parsing a result to a endpoint
This is json that I return at the moment to the endpoint:
{
"id": 1,
"name": "Ella - IPA Is Dead",
"description": "2015 IPA is Dead Series. Supremely floral, this hugely under-rated hop is related to Galaxy and was first cultivated in the Australian state of Victoria.",
"method": {
"mash_temp": [
{
"temp": {
"value": 65
}
}
]
}
}
I don't want to return "method" from this json, I just need "id", "name", "description", "mash_temp" - so it should look like this:
{
"id": 1,
"name": "Ella - IPA Is Dead",
"description": "2015 IPA is Dead Series. Supremely floral, this hugely under-rated hop is related to Galaxy and was first cultivated in the Australian state of Victoria. Initially given the same name as a certain Eurolager, their lawyers got involved and the St- prefix was dropped. Ella displays subtle notes of spice, but is fundamentally a truly floral bouquet, redolent of the Southern Hemisphere.",
"mash_temp": [
{
"temp": {
"value": 65
}
}
]
}
Those are the entities that I am using now:
Beer Entity:
#Entity
public class Beer implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "beer_id", unique = true, nullable = false)
private Integer id;
#Column(name = "name", nullable = false)
private String name;
#JsonProperty("description")
#Column(name = "description", nullable = false, columnDefinition = "TEXT")
private String description;
#JsonProperty("method")
#OneToOne(cascade = CascadeType.ALL)
private Method method;
}
Method Entity:
#Entity
public class Method implements Serializable
{
#JsonIgnore(value = true)
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#JsonProperty("mash_temp")
#OneToMany(cascade = CascadeType.ALL)
#JoinColumn(name = "mash_temp")
private List<MashTemp> mash_temp = new ArrayList<>();
}
MashTemp Entity:
#Entity
public class MashTemp implements Serializable
{
#JsonIgnore(value = true)
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#OneToOne(cascade = CascadeType.ALL)
private Temp temp;
#ManyToOne
private Method method;
}
Temp Entity:
#Entity
public class Temp implements Serializable
{
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
private Integer value;
#JsonIgnore(value = true)
private String unit;
#OneToOne
private MashTemp mashTemp;
}
Does anyone know how to create DTO's from this Entities but without "method" field?
Also this is my Controller:
#GetMapping("/beers")
public ResponseEntity<Set<Beer>> getAllBeers()
{
return new ResponseEntity<>(beerService.getAllBeers(), HttpStatus.OK);
}
#GetMapping("/beers/{id}")
public ResponseEntity<Beer> getById(#PathVariable Integer id) {
Beer beer = beerService.findById(id);
return new ResponseEntity<>(beer, HttpStatus.OK);
}
Have a look at the #JsonUnwrapped annotation (https://fasterxml.github.io/jackson-annotations/javadoc/2.8/com/fasterxml/jackson/annotation/JsonUnwrapped.html). You can put it on the method field in the Beer class, and then the properties of the Method class are serialized directly on the same level as the ones from Beer.
I have a problem about updating the movie.
I wrote a function that is named for "update" in MovieService.
Here is that function which is shown below.
public void update(Long id,Movie movie) {
boolean isUpdatingEmployee = (movie.getId() == id);
if (isUpdatingEmployee) {
Movie existingMovie = movieRepository.findById(movie.getId()).get();
existingMovie.setId(id);
existingMovie.setName(movie.getName());
existingMovie.setRating(movie.getRating());
existingMovie.setDirector(movie.getDirector());
existingMovie.setGenres(movie.getGenres());
existingMovie.setCreatedAt(movie.getCreatedAt());
movieRepository.save(existingMovie);
}
}
When ı try to update a movie after saving it, I got this kind of JSON result and that's why the update process cannot be done.
http://localhost:8082/api/v1/movie/update/1
Body Request
{
"name": "MovieC",
"genres": [
{
"name" : "Adventure"
},
{
"name" : "Action"
}
],
"createdAt": "2021-04-28",
"rating" : 9,
"director" : {
"name" : "Director 2"
}
}
The result of JSON after updating the process.
{
"id": null,
"name": "MovieC",
"genres": [
{
"id": null,
"name": "Action"
},
{
"id": null,
"name": "Adventure"
}
],
"rating": 9.0,
"createdAt": "2021-04-28",
"director": {
"id": null,
"name": "Director 2"
}
}
Here is my Movie entity which is shown below.
#Entity
#Getter
#Setter
#ToString
#AllArgsConstructor
#NoArgsConstructor
public class Movie implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
#JsonManagedReference
#OneToMany(mappedBy="movie",cascade = CascadeType.ALL,fetch = FetchType.EAGER)
private Set<Genre> genres;
private Double rating;
private LocalDate createdAt;
#ManyToOne(cascade=CascadeType.ALL,fetch = FetchType.EAGER)
#JoinColumn
private Director director;
}
Here is my Director entity which is shown below.
#Entity
#Getter
#Setter
#ToString
#RequiredArgsConstructor
#NoArgsConstructor
#JsonIgnoreProperties({"movies"})
public class Director implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#NonNull
private String name;
#OneToMany(mappedBy="director",cascade = CascadeType.ALL,fetch = FetchType.EAGER)
private Set<Movie> movies;
}
Here is my Genre entity which is shown below.
#Entity
#Getter
#Setter
#ToString
#RequiredArgsConstructor
#NoArgsConstructor
#JsonIgnoreProperties({"movie"})
public class Genre implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#NonNull
private String name;
#JsonBackReference
#ManyToOne(cascade = CascadeType.ALL,fetch = FetchType.EAGER)
#JoinColumn
private Movie movie;
}
Here is my sample project link : Project Link
How can I fix it?
As per your code, this is your request:
http://localhost:8082/api/v1/movie/update/1
{
"name": "MovieC",
"genres": [
{
"name" : "Adventure"
},
{
"name" : "Action"
}
],
"createdAt": "2021-04-28",
"rating" : 9,
"director" : {
"name" : "Director 2"
}
}
Now consider this snippet from your code:
public void update(Long id,Movie movie) {
boolean isUpdatingEmployee = (movie.getId() == id);
if (isUpdatingEmployee) {
...
Your id will be 1 as you've set this in your path variable.
However, movie.getId() will be null since I don't see it in your RequestBody.
And so:
isUpdatingEmployee = (movie.getId() == id)`
isUpdatingEmployee = ( null == 1)
isUpdatingEmployee = false
this will always give you false so I don't think this will enter in your update logic.
I think the problem because you are returning the same object movie you passed in the body of the post method in the controller - https://github.com/Rapter1990/springboothazelcast/blob/3157f354a628d418cccb99cfdbd188f594c24e9c/src/main/java/com/springboot/hazelcast/controller/MovieController.java#L64
You should rewrite it to something like this:
#PostMapping("/save")
public Movie saveMovie(#RequestBody Movie movie) throws ParseException {
LOG.info("MovieController | Saving Movie.");
return movieService.save(movie);
}
Here is the link to CRUDRepository javadocs:
https://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/repository/CrudRepository.html#save-S-
Here is my Controller:
#PostMapping("post")
#PreAuthorize("hasAuthority('WRITE')")
public ResponseEntity<?> createPost(#RequestBody PostEntity postEntity) {
return new ResponseEntity<>(postService.createPost(postEntity), HttpStatus.CREATED);
}
Service :
#Override
public Post createPost(PostEntity postEntity) {
return postFactory.buildPost(postEntityRepository.save(postEntity));
}
//Post is Immutable class here
public Post buildPost(PostEntity entity) {
return new Post.Builder()
.groupId(entity.getGroupEntity().getGroupId())
.postedBy(entity.getPostedBy().getUsername())
.postType(entity.getType())
.postMedia(entity.getPostMedia())
.postId(entity.getPostId())
.build();
}
Here is my mockMvc:
#BeforeEach
public void setUp(WebApplicationContext webApplicationContext,
RestDocumentationContextProvider restDocumentation) {
this.mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext)
.apply(documentationConfiguration(restDocumentation))
.alwaysDo(document("{method-name}",
preprocessRequest(prettyPrint()), preprocessResponse(prettyPrint())))
.build();
}
Here is my Test:
this.mockMvc.perform(post("/api/post")
.contentType(MediaTypes.HAL_JSON)
.contextPath("/api")
.content(this.objectMapper.writeValueAsString(postEntity)))
.andExpect(status().isCreated())
.andDo(
document("{method-name}", preprocessRequest(prettyPrint()),
preprocessResponse(prettyPrint()),
requestFields(describeCreatePostRequest()),
responseFields(describePostEntityResult())
));
Here is Post call:
#Value.Immutable
#JsonSerialize(as = ImmutablePost.class)
#JsonDeserialize(as = ImmutablePost.class)
#JsonInclude(JsonInclude.Include.NON_NULL)
#Relation(value = "post", collectionRelation = "posts")
public interface Post {
Long getPostId();
String getPostType();
String postedBy();
#Nullable
PostMedia postMedia();
Long groupId();
class Builder extends ImmutablePost.Builder {}
}
PostEntity #Entity class here is json format:
{
"type" : "text",
"postedBy" : {
"username": "sandeep"
},
"postMedia" : {
"mediaType": "text",
"mediaUrl": "null",
"content": "Hi this is testing media content",
"createdAt": 1234,
"updatedAt": 689
},
"groupEntity": {
"groupId": 4
}
}
And Post entity class:
#Entity
#Table(name = "POST")
#JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
public class PostEntity {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "POST_ID")
private Long postId;
#Column(name = "POST_TYPE")
private String type;
#ManyToOne
#JoinColumn(name = "username", referencedColumnName = "username")
private User postedBy;
#OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
#JoinColumn(name = "post_media_id", referencedColumnName = "id")
private PostMedia postMedia;
#ManyToOne(cascade = CascadeType.REMOVE, fetch = FetchType.LAZY)
#JoinColumn(name = "GROUP_ID", referencedColumnName = "GROUP_ID")
private GroupEntity groupEntity;
public PostEntity() {
}
}
I have tried
objectMapper.readValue(objectMapper.writeValueAsString(postEntity), ImmutablePost.class);
As well. but still its not working, I am facing same exception:
org.springframework.restdocs.snippet.SnippetException: Cannot document response fields as the response body is empty
at org.springframework.restdocs.payload.AbstractFieldsSnippet.verifyContent(AbstractFieldsSnippet.java:191)
at org.springframework.restdocs.payload.AbstractFieldsSnippet.createModel(AbstractFieldsSnippet.java:147)
at org.springframework.restdocs.snippet.TemplatedSnippet.document(TemplatedSnippet.java:78)
at org.springframework.restdocs.generate.RestDocumentationGenerator.handle(RestDocumentationGenerator.java:191)
The problem is with the "PostMedia" setters "PostMedia" and "GroupEntity". You need to accept strings in the setters parameter and convert them to the corresponding entity. Expecting the setter's arguments as the custom entity type is making the problem.
For example:
public class MyModel {
private CustomEnum myEnum;
public CustomEnum getMyEnum() {
return myEnum;
}
public void setMyEnum(String enumName) {
this.myEnum = CustomEnum.valueOf(enumName);
}
}
i have the following two domain objects and it has the one to many relation between them
1.BOY (Boy.java)
2.CYCLE (cycle.java)
its a springboot based application,and i did javerse repository implementation with this application .
while fetching the shadows using JQL [javerse query language ] its not working properly
1.Pom file i added javers-spring-boot-starter-sql dependency
2.Boy entity class
#Entity
#Table(name = "boy")
public class Boy implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
#SequenceGenerator(name = "sequenceGenerator")
private Long id;
#Column(name = "name")
private String name;
#OneToMany(mappedBy = "boy")
private Set<Cycle> cycles = new HashSet<>();
}
3.Cycle entity class
#Entity
#Table(name = "cycle")
public class Cycle implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequenceGenerator")
#SequenceGenerator(name = "sequenceGenerator")
private Long id;
#Column(name = "cycname")
private String cycname;
#ManyToOne
#JsonIgnoreProperties("cycles")
private Boy boy;
}
4.Boy and Cycle repositories has been annotated with #JaversSpringDataAuditable
6.Audit Fetch API using Javerse Query Language
#PostMapping("/audit/shadowsboy/{id}")
#Timed
public String getShadows(#PathVariable Long id) {
JqlQuery queryBuilder = QueryBuilder.byInstanceId(id, Boy.class).withScopeCommitDeep().build();
List<Shadow<Object>> shadowList = javers.findShadows(queryBuilder);
System.out.println("shadows: ::::::::::::::::::::::::::" + javers.getJsonConverter().toJson(shadowList));
return javers.getJsonConverter().toJson(shadowList);
}
Output:
after adding a cycle to boy ,findShadows by Boy id returns
{
"commitMetadata": {
"author": "anonymousUser",
"properties": [],
"commitDate": "2019-07-20T13:11:24.076",
"commitDateInstant": "2019-07-20T07:41:24.076Z",
"id": 2.00
},
"it": {
"id": 951,
"name": null,
"cycles": []
}
},
{
"commitMetadata": {
"author": "anonymousUser",
"properties": [],
"commitDate": "2019-07-20T13:04:26.988",
"commitDateInstant": "2019-07-20T07:34:26.988Z",
"id": 1.00
},
"it": {
"id": 951,
"name": "gajendran.g",
"cycles": []
}
}
]
expected outcome : cycles object must not be empty or null