I has the spring data mongo POJO as below. Here Map has key value pairs dynamically.
#Document(collection = "sample_event")
public class SampleEvent {
private static final long serialVersionUID = 3575974453648692913L;
#Id
private ObjectId id;
#Field("unique_id")
private String uniqueId;
#Field("ts")
private Date timestamp;
private Map<String, Object> fields = new HashMap<String, Object>();
public ObjectId getId() {
return id;
}
public void setId(ObjectId id) {
this.id = id;
}
public String getUniqueId() {
return uniqueId;
}
public void setUniqueId(String uniqueId) {
this.uniqueId = uniqueId;
}
public Date getTimestamp() {
return timestamp;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
public void setFields(Map<String, Object> obj) {
fields = obj;
}
public Map<String, Object> getFields() {
return fields;
}
}
I want to save the json data to mongo as below with above POJO (Here abc, xyz, lmn will get from 'fields Map'):
{
"_id" : ObjectId("5a02c169e68c0a19248fe023"),
"unique_id" : "111111",
"ts" : ISODate("2017-10-10T18:30:05.000Z"),
"abc" : "info",
"xyz" : "notice",
"lmn" : "25"
}
But it is saving as below:
{
"_id" : ObjectId("5a02c169e68c0a19248fe023"),
"unique_id" : "111111",
"ts" : ISODate("2017-10-10T18:30:05.000Z"),
"fields" :
{
"abc" : "info",
"xyz" : "notice",
"lmn" : "25"
}
}
How to remove 'fileds' attribute from nested json while saving to mongo. Please help me.
Related
I am using .net core identity. When I create a new user in db, I can see that its ID column is GUID and it is string. I want to make it int so that User IDs can be 1,2,3 ...
How can I do that?
Usually we don't do that, It seems like it will be more complicated than simply adding a new id property with type int in your derived user class. But there still one way you can do it. Here's what plugging in guids instead of strings should look for example:
public class GuidRole : IdentityRole<Guid, GuidUserRole> {
public GuidRole() {
Id = Guid.NewGuid();
}
public GuidRole(string name) : this() { Name = name; }
}
public class GuidUserRole : IdentityUserRole<Guid> { }
public class GuidUserClaim : IdentityUserClaim<Guid> { }
public class GuidUserLogin : IdentityUserLogin<Guid> { }
public class GuidUser : IdentityUser<Guid, GuidUserLogin, GuidUserRole, GuidUserClaim> {
public GuidUser() {
Id = Guid.NewGuid();
}
public GuidUser(string name) : this() { UserName = name; }
}
private class GuidUserContext : IdentityDbContext<GuidUser, GuidRole, Guid, GuidUserLogin, GuidUserRole, GuidUserClaim> { }
private class GuidUserStore : UserStore<GuidUser, GuidRole, Guid, GuidUserLogin, GuidUserRole, GuidUserClaim> {
public GuidUserStore(DbContext context)
: base(context) {
}
}
private class GuidRoleStore : RoleStore<GuidRole, Guid, GuidUserRole> {
public GuidRoleStore(DbContext context)
: base(context) {
}
}
[TestMethod]
public async Task CustomUserGuidKeyTest() {
var manager = new UserManager<GuidUser, Guid>(new GuidUserStore(new GuidUserContext()));
GuidUser[] users = {
new GuidUser() { UserName = "test" },
new GuidUser() { UserName = "test1" },
new GuidUser() { UserName = "test2" },
new GuidUser() { UserName = "test3" }
};
foreach (var user in users) {
UnitTestHelper.IsSuccess(await manager.CreateAsync(user));
}
foreach (var user in users) {
var u = await manager.FindByIdAsync(user.Id);
Assert.IsNotNull(u);
Assert.AreEqual(u.UserName, user.UserName);
}
}
I have following code
#Controller()
public class TestController {
#Get(value = "test", produces = MediaType.APPLICATION_JSON)
public MyDto fetch() throws Exception {
return new MyDto(
"test",
new ObjectMapper().readValue("{\"a\": 1}", ObjectNode.class)
);
}
#Serializable
#Data
public static class MyDto {
private final String name;
private final ObjectNode extraFields;
public MyDto(String name, ObjectNode extraFields) {
this.name = name;
this.extraFields = extraFields;
}
}
}
And I have an unexpected output on the client, extraFields object is empty
{
"name": "test",
"extraFields": [
[]
]
}
How to make Micronaut controller properly serialize com.fasterxml.jackson.databind.node.ObjectNode ?
I try to develop a api with spring-cloud-gateway but it's not easy for me
My "microservice A" return an Mono. This Object contains a List of id "Object B"
My "microservice B" return an Flux
In my api-gateway, how can i aggregate in a Mono the result of the microservices ?
#Service
public class ServiceAClient {
private final WebClient webClient;
public ServiceAClient(WebClient.Builder builder) {
this.webClient = builder.baseUrl("lb://microservice-A/A/").build();
}
public Mono<ObjectA> getObjectA(String id){
return webClient
.get()
.uri("{id}" , id)
.retrieve()
.bodyToMono(ObjectA.class)
.onErrorResume(ex->Mono.empty());
}
}
#Service
public class ServiceBClient {
private final WebClient webClient;
public ServiceAClient(WebClient.Builder builder) {
this.webClient = builder.baseUrl("lb://microservice-B/B/").build();
}
public Flux<ObjectB> getListObjectB(List<Long> ids){
return webClient
.get()
.uri("{ids}" , ids)
.retrieve()
.bodyToFlux(ObjectB.class);
}
}
#Data
public class ObjectA {
private UUID id;
private String name;
private String description;
private Date start;
private Date end;
private List<Long> listIdObjectB;
}
#Data
public class ObjectB {
private Long id;
private String name;
private String localisation;
}
#Data
public class MyDto {
private UUID id;
private String name;
private String description;
private Date start;
private Date end;
private List<ObjectB> listObjectB;
}
#Service
#AllArgsConstructor
public class CombinedService {
private final ServiceAClient serviceAClient;
private final ServiceBClient serviceBClient;
public Mono<MyDto> getDetails(String id){
// return MyDto who join a Mono Service A an Flux service B
}
}
The desired result
{
"id": "2355e7eb-edf7-428c-b51b-ac06c146ed3c",
"name": "toto",
"description": "lorem ipsum",
"debut": 01/06/2022,
"fin": 10/06/2022,
"ListObjectB": [
{
"id": 1,
"name": "foo",
"localisation": "here"
},
{
"id": 2,
"name": "bar",
"localisation": "here"
}
]
}
Thank you in advance for your help
You can take it as a start point to understand a possible solution.
I highly recommend you to read about reactive streams(https://www.reactive-streams.org/) and spring-webflux(https://docs.spring.io/spring-framework/docs/current/reference/html/web-reactive.html).
Your CombinedService should looks like:
#Service
#AllArgsConstructor
public class CombinedService {
private final ServiceAClient serviceAClient;
private final ServiceBClient serviceBClient;
public Mono<MyDto> getDetails(String id) {
return serviceAClient.getObjectA(id)
.map(objectA -> {
final Flux<ObjectB> fluxB = serviceBClient.getListObjectB(objectA.getListIdObjectB());
final List<ObjectB> listObjectB = fluxB.toStream().collect(Collectors.toList());
final MyDto myDto = new MyDto();
myDto.setName(objectA.getDescription());
myDto.setDescription(objectA.getDescription());
myDto.setListObjectB(listObjectB);
//More setters, etc
return myDto;
});
}
}
I have a Json Payload for a Post call as below:
{
"action" : "Closed",
"Id" : 30144,
"expireDate" : null,
"inputUser" : "abc",
"previousStatusId" : 1,
"statusId" : 4,
"Notes" : [ ]
}
My POJO classes for the above payload is as below
public class UpdateNoteStatus {
private String action;
private int Id;
private String expireDate;
private String inputUser;
private int previousStatusId;
private int statusId;
private List<Notes> Notes;
public void setAction(String action) {
this.action = action;
}
public void setId(int Id) {
this.Id = Id;
}
public void setExpireDate(String expireDate) {
this.expireDate = expireDate;
}
public void setinputUser(String inputUser) {
this.inputUser = inputUser;
}
public void setPreviousStatusId(int previousStatusId) {
this.previousStatusId = previousStatusId;
}
public void setStatusId(int statusId) {
this.statusId = statusId;
}
public void setNotes(List<Notes> Notes) {
this.Notes = Notes;
}
}
public class Notes{
}
Now I have assigned the values in the main class from where I am making the API call is as below:
ArrayList<Notes> Notes = new ArrayList<Notes>();
UpdateNoteStatus objUpdateNoteStatus = new UpdateNoteStatus();
objUpdateNoteStatus.setAction("Closed");
objUpdateNoteStatus.setId(Integer.parseInt("30144"));
objUpdateNoteStatus.setinputUser("abc");
objUpdateNoteStatus.setPreviousStatusId(1);
objUpdateNoteStatus.setStatusId(4);
objUpdateNoteStatus.setNotes(Notes);
But when I am making the API POST call it is throwing exception - "no serializer found for class and no properties discovered to create beanserializer". Could you please help. The Step is hightlighted in Bold.
RequestSpecification rs = given().contentType("application/json");
**rs = rs.body(objUpdateNoteStatus);** //In This Step I am getting the above mentioned Exception
Response res = rs.when().post("/UpdateStatus");
as you are initializing an empty object , you need to use below Annotation supported in below library
com.jayway.restassured.RestAssured;
#JsonIgnoreProperties(ignoreUnknown=true)
class UpdateNoteStatus
Assume the following REST resource:
#Path("/ActiveLeadTask")
//Also possible MediaType.APPLICATION_XML
#Produces(MediaType.APPLICATION_JSON)
public class ActiveLeadTask {
private #Inject ActiveLeadTaskBo activeLeadBo;
#GET
#Path("/getBo")
public ActiveLeadTaskBo getBo() {
return activeLeadBo;
}
}
////////////////////////////////////////////////////
#XmlRootElement
#XmlAccessorType(XmlAccessType.PUBLIC_MEMBER)
public class ActiveLeadTaskBo implements Serializable {
private static final long serialVersionUID = 1L;
private String firstName;
private String lastName;
private String phoneNumber;
private String phoneCountryCode;
private AtomicInteger accessCounterField = new AtomicInteger(0);
public ActiveLeadTaskBo() {
firstName = "test";
lastName = "test";
}
public int getAccessCounter() {
return accessCounterField.incrementAndGet();
}
public void setAccessCounter(int seed) {
accessCounterField.set(seed);
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
The REST response for getBo() JSON (but not for XML) returns the following:
{
"accessCounter": 1,
"firstName": "test",
"lastName": "test",
"metadata": {
"contextualInstance": {
"accessCounter": 2,
"firstName": "test",
"lastName": "test"
},
"instance": {
"accessCounter": 3,
"firstName": "test",
"lastName": "test"
}
}
}
The JSON response contains an additional "metadata" field - how can I configure the project to not generate it, or avoid generating it? The CDI container is Weld and the JSON serializer is provided by Yasson.
Two solutions are possible:
create a wrapper class, for example, ActiveLeadTaskBoInjectWrapper:
#Inject
ActiveLeadTaskBoInjectWrapper activeLeadBo;
activeLeadBo.getInstance();
workaround Weld specifics:
#Inject
Foo foo;
public void doSomething() {
if (foo instanceof WeldClientProxy) {
// foo is a proxy
((WeldClientProxy)foo).getMetadata().getContextualInstance()
} else {
// not a proxy
}
}
Depends on what JSON processing framework is used in your REST endpoint. For jsonb-api (jsr367) the only possible solution is to implement javax.json.bind.config.PropertyVisibilityStrategy to exclude generated properties from processing.