Hi I am having an angular ui which consumes rest api's provided by a spring boot application. from the angular ui i am issuing a GET rest api call , however the request parameters are not getting binded to the object. the following is my GET request.
curl -H "Content-Type: application/json" -H "Authorization: Bearer eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiJjYW1wYWlnbm1hbmFnZXJAbG9jYWxob3N0IiwiYXV0aCI6IlJPTEVfQ0FNUEFJR05fTUFOQUdFUiIsImV4cCI6MTU1ODE4MzAyM30.OHSqVZ5c9-44SyyB_ykFqf9xC-06UvSv-F7UYLvrrK_YNJrqF3Mvuv8zvTrBqdMXRMBdCQNmitVQ38zdZxj3Tg" http://localhost:8080/api/campaigns/unpaginated?statuses=357632f0-1afd-4af2-a8f2-3b964884bfb3&statuses=2f02e5f0-2d56-4583-a9db-f962becbd5f9&accounts=e15965cf-ffc1-40ae-94c4-b450ab190222
The following is my RestController named CampaignResource & request method
getAllCampaignsUnpaginated
#RestController
#RequestMapping("/api")
public class CampaignResource {
/**
* GET /campaigns : get all the campaigns unpaginated.
*
* #return the ResponseEntity with status 200 (OK) and the list of campaigns in body
*/
#GetMapping("/campaigns/unpaginated")
#Timed
#Secured({AuthoritiesConstants.GLOBAL_ADMIN, AuthoritiesConstants.ACCOUNT_ADMIN, AuthoritiesConstants.CAMPAIGN_MANAGER, AuthoritiesConstants.TEAM_MEMBER})
public ResponseEntity<List<DropdownDTO>> getAllCampaignsUnpaginated(CampaignFilterRequest filter) {
log.debug("REST request to get all Campaigns");
return ResponseEntity.ok().body(campaignService.findAll(filter));
}
}
the following is my CampaignFilterRequest class to which i want to bind my request parameters .
import com.google.common.collect.Lists;
import java.time.ZonedDateTime;
import java.util.List;
import java.util.UUID;
public class CampaignFilterRequest {
private ZonedDateTime minStartDate;
private ZonedDateTime maxEndDate;
private List<UUID> types = Lists.newArrayList();
private List<UUID> createdBy = Lists.newArrayList();
private List<UUID> statuses = Lists.newArrayList();
private List<UUID> accounts = Lists.newArrayList();
public ZonedDateTime getMinStartDate() {
return minStartDate;
}
public void setMinStartDate(ZonedDateTime minStartDate) {
this.minStartDate = minStartDate;
}
public ZonedDateTime getMaxEndDate() {
return maxEndDate;
}
public void setMaxEndDate(ZonedDateTime maxEndDate) {
this.maxEndDate = maxEndDate;
}
public List<UUID> getStatuses() {
return statuses;
}
public void addStatus(UUID status) {
this.statuses.add(status);
}
public List<UUID> getTypes() {
return types;
}
public void setTypes(List<UUID> types) {
this.types = types;
}
public void addType(UUID type) {
this.types.add(type);
}
public List<UUID> getCreatedBy() {
return createdBy;
}
public void setCreatedBy(List<UUID> createdBy) {
this.createdBy = createdBy;
}
public void addCreatedBy(UUID createdBy) {
this.createdBy.add(createdBy);
}
public List<UUID> getAccounts() {
return accounts;
}
public void addAccount(UUID accounts) {
this.accounts.add(accounts);
}
public void setAccounts(List<UUID> accounts) {
this.accounts = accounts;
}
}
I am able to put a debug on the getAllCampaignsUnpaginated and i can see the statuses and accounts are empty . !!!
appreciate any help
thanks a lot.
You need setter methods for the collections as a collection object instead of a per object basis. You have
public void addStatus(UUID status) {
this.statuses.add(status);
}
But spring doesn't know how to set the uuids, if you add a setter for the entire collection it will work, for example
public void setStatuses(List<UUID> statuses) {
this.statuses = statuses;
}
Adding to this i would also suggest you create a constructor which contains all of the fields of the class that you want to set. That way you don't need setters and the class will contain less boilerplate.
Related
First question here, I hope I'm doing it right.
I'm using Entity Framework Core 5.0 (Code First) with an onion architecture (data/repo/service/mvc) and so I have a service for each table (almost).
It's work well but now I need to manage (get, insert, update, delete) about 150 tables which all have the same structure (Id, name, order).
I have added each of them as Entity class and their DbSet too in my DbContext, but I don't want to make 150 services, I would like to have a generic one .
How can I bind it to my generic repository ?
public class Repository<T> : IRepository<T> where T : BaseEntity
{
private readonly ApplicationContext context;
private DbSet<T> entities;
private readonly RepositorySequence repoSequence;
private string typeName { get; set; }
public Repository(ApplicationContext context)
{
this.context = context;
entities = context.Set<T>();
this.repoSequence = new RepositorySequence(context);
this.typeName = typeof(T).Name;
}
public T Get(long plng_Id)
{
return entities.SingleOrDefault(s => s.Id == plng_Id);
}
[...]
}
In an ideal world, would like to have something like this :
public async Task Insert(dynamic pdyn_Entity)
{
Type DynamicType = Type.GetType(pdyn_Entity);
Repository<DynamicType> vobj_Repo = new Repository<DynamicType>(mobj_AppContext);
long Id = await vobj_Repo.InsertAsync(pdyn_Entity);
}
But I can try to get type from DbSet string Name too, I just managed to retrieve some data :
public IEnumerable<object> GetAll(string pstr_DbSetName)
{
return ((IEnumerable<BaseEntity>)typeof(ApplicationContext).GetProperty(pstr_DbSetName).GetValue(mobj_AppContext, null));
}
I've tried the following method (2.0 compatible apparently) to get the good DbSet, not working neither (no Query) : https://stackoverflow.com/a/48042166/10359024
What am I missing?
Thanks a lot for your help
Not sure why you need to get type?
You can use something like this.
Repository.cs
public class Repository<T> : IRepository<T> where T : BaseEntity
{
private readonly ApplicationContext context;
private DbSet<T> entities;
public Repository(ApplicationContext context)
{
this.context = context;
entities = context.Set<T>();
}
public List<T> Get()
=> entities.ToList();
public T Get(long plng_Id)
=> entities.Find(plng_Id);
public long Save(T obj)
{
if (obj.ID > 0)
entities.Update(obj);
else
entities.Add(obj);
return obj.ID;
}
public void Delete(T obj)
=> entities.Remove(obj);
}
Then you can use either one of these 2 options you want
Multiple repositories following your tables
UserRepository.cs
public class UserRepository : Repository<User> : IUserRepository
{
private readonly ApplicationContext context;
public UserRepository(ApplicationContext context)
{
this.context = context;
}
}
BaseService.cs
public class BaseService : IBaseService
{
private readonly ApplicationContext context;
private IUserRepository user;
private IRoleRepository role;
public IUserRepository User { get => user ??= new UserRepository(context); }
public IRoleRepository Role { get => user ??= new RoleRepository(context); }
public BaseService(ApplicationContext context)
{
this.context = context;
}
}
If you are lazy to create multiple repositories, can use this way also. Your service just simple call Repository with entity name.
BaseService.cs
public class BaseService : IBaseService
{
private readonly ApplicationContext context;
private IRepository<User> user;
private IRepository<Role> role;
public IRepository<User> User { get => user ??= new Repository<User>(context); }
public IRepository<Role> Role { get => role ??= new Repository<Role>(context); }
public BaseService(ApplicationContext context)
{
this.context = context;
}
}
Finally, you can call service like this. You can use multiple services instead of BaseService if you want.
HomeController.cs
public class HomeController : Controller
{
private readonly IBaseService service;
public HomeController(IBaseService service)
{
this.service = service;
}
public IActionResult Index()
{
var user = service.User.Get();
return View(user);
}
public IActionResult Add(User user)
{
var id = service.User.Save(user);
return View();
}
}
I suggest to use first option (multiple repositories) because you may need to customise functions in own repository in future. And create service class following your controller name. For example, you have HomeController, UserController, etc. Create HomeService, UserService and link them with BaseService so that you can create customised functions in their own service class.
I assume you have a base entity like this:
public class BaseEntity
{
[Key]
public int Id { get; set; }
public string Name { get; set; }
public string Order { get; set; }
}
Then you can do CRUD operations in your generic repository like this:
public int Create(T item)
{
if (item == null) return 0;
entities.Add(item);////SaveChanges
return item.Id;
}
public void Update(T updatedItem)
{
context.SetModified(updatedItem);//SaveChanges
}
public IQueryable<T> All()
{
return entities();
}
And in each of the methods you have access to your 3 common fields in BaseEntity
Thank you all for your responses.
I need to have the type because I am using a blazor component which automatically binds to these tables. This component has the name of the desired entity class (in string) as a parameter. Thanks to #Asherguru's response I was able to find a way to do this:
1 - I made a 'SedgmentEntity' Class :
public abstract class SegmentEntity : ISegmentEntity
{
public abstract long Id { get; set; }
public abstract string Name { get; set; }
public abstract short? Order { get; set; }
}
2 - A SegmentRepository which is typed via Reflection:
public class SegmentRepository : ISegmentRepository
{
private readonly ApplicationContext context;
private readonly RepositorySequence repoSequence;
public SegmentRepository(ApplicationContext context)
{
this.context = context;
this.repoSequence = new RepositorySequence(context);
}
public async Task<long> Insert(string pstr_EntityType, SegmentEntity pobj_Entity)
{
Type? vobj_EntityType = Assembly.GetAssembly(typeof(SegmentEntity)).GetType("namespace.Data." + pstr_EntityType);
if (vobj_EntityType != null)
{
// create an instance of that type
object vobj_Instance = Activator.CreateInstance(vobj_EntityType);
long? nextId = await repoSequence.GetNextId(GetTableName(vobj_EntityType));
if (nextId == null)
{
throw new TaskCanceledException("Sequence introuvable pour " + vobj_EntityType.FullName);
}
PropertyInfo vobj_PropId = vobj_EntityType.GetProperty("Id");
vobj_PropId.SetValue(vobj_Instance, nextId.Value, null);
PropertyInfo vobj_PropName = vobj_EntityType.GetProperty("Name");
vobj_PropName.SetValue(vobj_Instance, pobj_Entity.Name, null);
PropertyInfo vobj_PropOrder = vobj_EntityType.GetProperty("Order");
vobj_PropOrder.SetValue(vobj_Instance, pobj_Entity.Order, null);
return ((SegmentEntity)context.Add(vobj_Instance).Entity).Id;
}
}
public IEnumerable<object> GetAll(string pstr_EntityType)
{
Type? vobj_EntityType = Assembly.GetAssembly(typeof(SegmentEntity)).GetType("namespace.Data." + pstr_EntityType);
if (vobj_EntityType != null)
{
PropertyInfo vobj_DbSetProperty = typeof(ApplicationContext).GetProperties().FirstOrDefault(prop =>
prop.PropertyType.FullName.Contains(vobj_EntityType.FullName));
return (IEnumerable<object>)vobj_DbSetProperty.GetValue(context, null);
}
return null;
}
}
I still have to handle the Get and the Delete functions but it should be fine.
Then I will be able to create a single service which will be called by my component.
Thanks again !
Assuming I've the following endpoints in spring boot
GET /todo
DELETE /todo/{id}
How can ensure that only entries for the userid are returned and that the user can only update his own todos?
I've a populated Authentication object.
Is there any build in way I can use? Or just make sure to always call findXyzByIdAndUserId where userid is always retrieved from the Principal?
I'm a bit worried about the possibility to forget the check and displaying entries from other users.
My approach to this would be a 3 way implementation: (using jpa & hibernate)
a user request context
a mapped superclass to get your context
a statement inspector to inject your userid
For example:
public final class UserRequestContext {
public static String getUserId() {
// code to retrieve your userid and throw when there is none!
if (userId == null) throw new IllegalStateException("userid null");
return userId;
}
}
#MappedSuperclass
public class UserResolver {
public static final String USER_RESOLVER = "USER_RESOLVER";
#Access(AccessType.PROPERTY)
public String getUserId() {
return UserRequestContext.getUserId();
}
}
#Component
public class UserInspector implements StatementInspector {
#Override
public String inspect(String statement) {
if (statement.contains(UserResolver.USER_RESOLVER)) {
statement = statement.replace(UserResolver.USER_RESOLVER, "userId = '" + UserRequestContext.getUserId() + "'" );
}
return sql;
}
#Bean
public HibernatePropertyCustomizer hibernatePropertyCustomizer() {
return hibernateProperies -> hibernateProperties.put("hibernate.session_factory.statement_inspector",
UserInspector.class.getName());
}
}
So your Entity looks like this:
#Entity
...
#Where(clause = UserResolver.USER_RESOLVER)
public class Todo extends UserResolver {
...
}
I try to config cqrs and event sourcing with axon.
SeatReseveCreateCommand is work properly. but SeatReserveUpadateCommand is not work correct.
this is my SeatReserve aggregate
#Aggregate
public class SeatReserve {
#AggregateIdentifier
private String id;
private String seatid;
private Date date;
#SuppressWarnings("unused")
private SeatReserve() {
}
#CommandHandler
public SeatReserve(SeatReseveCreateCommand seatReseveCreateCommand) {
apply(new SeatReseveCreateEvent(seatReseveCreateCommand.getMyid(), seatReseveCreateCommand.getSeatId(),
seatReseveCreateCommand.getDate()));
}
#CommandHandler
public SeatReserve(SeatReserveUpadateCommand upadateCommand) {
apply(new SeatReserveUpadateEvent(id, upadateCommand.getSeatId()));
}
#EventSourcingHandler
public void on(SeatReseveCreateEvent seatReseveCreateEvent) {
this.id = seatReseveCreateEvent.getId();
this.seatid = seatReseveCreateEvent.getSeatId();
this.date = seatReseveCreateEvent.getDate();
}
#EventSourcingHandler
public void on(SeatReserveChangeEvent upadateEvent) {
seatid = upadateEvent.getSeatId();
}
}
this is my controller
#RestController
public class TestController {
private final CommandGateway commandGateway;
public TestController(CommandGateway commandGateway) {
this.commandGateway=commandGateway;
}
#PostMapping
public String fileComplaint(#RequestBody Map<String, String> request) {
String id = UUID.randomUUID().toString();
SeatReseveCreateCommand command=new SeatReseveCreateCommand(id,request.get("seatid"),new Date(request.get("date")));
commandGateway.send(command);
return id;
}
#PatchMapping
public String fileComplaintUpdate(#RequestBody Map<String, String> request) {
SeatReserveUpadateCommand command= new SeatReserveUpadateCommand(request.get("id"),request.get("seatid"));
commandGateway.send(command);
return request.get("id");
}
}
I try to send request using postman
this is my create request
this is my update request
update make this error
2018-01-03 10:44:53.608 WARN 11138 --- [nio-8085-exec-1] o.a.c.gateway.DefaultCommandGateway : Command 'com.thamira.research.api.bankaccount.SeatReserveUpadateCommand' resulted in org.axonframework.eventsourcing.IncompatibleAggregateException(Aggregate identifier must be non-null after applying an event. Make sure the aggregate identifier is initialized at the latest when handling the creation event.)
how can I solve this.
The problem is that your update command is defined as a constructor. The command should go to the already existing aggregate instance.
Changing the command handler to:
#CommandHandler
public void handle(SeatReserveUpadateCommand upadateCommand) {...}
should fix the issue.
Here is my ConfigUpdater class
private final class ConfigUpdater implements ManagedService {
#SuppressWarnings("rawtypes")
#Override
public void updated(Dictionary config) throws ConfigurationException {
if (config == null) {
return;
}
String title = ((String)config.get("title"));
}
}
My question is how can I access String title in any other class? Or how can I get config dictionary in any other class... Method updated will only be called when a config file is changed... once it is changed how can access its data in other class?
In general you would create a service that exposes these properties to other components.
For example, you could give your ConfigUpdater a second interface. Another component can than lookup/inject this interface from the service registry and use it's methods to access the properties.
I created an example project on GitHub: https://github.com/paulbakker/configuration-example
The most important part is the service that implements both ManagedService and a custom interface:
#Component(properties=#Property(name=Constants.SERVICE_PID, value="example.configurationservice"))
public class ConfigurationUpdater implements ManagedService, MyConfiguration{
private volatile String message;
#Override
public void updated(#SuppressWarnings("rawtypes") Dictionary properties) throws ConfigurationException {
message = (String)properties.get("message");
}
#Override
public String getMessage() {
return message;
}
}
The configuration can then be used like this:
#Component(provides=ExampleConsumer.class,
properties= {
#Property(name = CommandProcessor.COMMAND_SCOPE, value = "example"),
#Property(name = CommandProcessor.COMMAND_FUNCTION, values = {"showMessage"}) })
public class ExampleConsumer {
#ServiceDependency
private volatile MyConfiguration config;
public void showMessage() {
String message = config.getMessage();
System.out.println(message);
}
}
Im new using this front end framework application...
I recently started to work with smartgwt and i'm bulding a new application with a Spring MVC integration.
I'm using a ListGrid with a RestDataSource (Consume the Rest service with mvc:annotation-driven for plain JSON)
I can see that the servaice gets consuming properly perhaps my grid is never shown with the data in it.
Can someone help me here ?
Here's my ListGrid class
public class ListGrid extends com.smartgwt.client.widgets.grid.ListGrid {
private final SpringJSONDataSource springJSONDataSource;
public ListGrid(List<DataSourceField> fields) {
this(new PatientDataSource(fields));
}
public ListGrid(SpringJSONDataSource springJSONDataSource) {
this.springJSONDataSource = springJSONDataSource;
init();
}
private void init() {
setAutoFetchData(true);
setAlternateRecordStyles(true);
setEmptyCellValue("???");
setDataPageSize(50);
setDataSource(springJSONDataSource);
}
}
Now there's the DataSource implmentation
public abstract class SpringJSONDataSource extends RestDataSource {
protected final HTTPMethod httpMethod;
public SpringJSONDataSource(List<DataSourceField> fields) {
this(fields, HTTPMethod.POST);
}
public SpringJSONDataSource(List<DataSourceField> fields, HTTPMethod httpMethod) {
this.httpMethod = httpMethod;
setDataFormat(DSDataFormat.JSON);
addDataSourceFields(fields);
setOperationBindings(getFetch());
addURLs();
}
private void addURLs() {
if(getUpdateDataURL() != null)
setUpdateDataURL(getUpdateDataURL());
if(getRemoveDataURL() != null)
setRemoveDataURL(getRemoveDataURL());
if(getAddDataURL() != null)
setAddDataURL(getAddDataURL());
if(getFetchDataURL() != null)
setFetchDataURL(getFetchDataURL());
}
private void addDataSourceFields(List<DataSourceField> fields) {
for (DataSourceField dataSourceField : fields) {
addField(dataSourceField);
}
}
protected abstract OperationBinding getFetch();
protected abstract OperationBinding getRemove();
protected abstract OperationBinding getAdd();
protected abstract OperationBinding getUpdate();
public abstract String getUpdateDataURL();
public abstract String getRemoveDataURL();
public abstract String getAddDataURL();
public abstract String getFetchDataURL();
}
The class PatientDataSource that extends SpringJSONDataSource
public class PatientDataSource extends SpringJSONDataSource {
public PatientDataSource(List<DataSourceField> fields) {
super(fields);
setPrettyPrintJSON(true);
}
#Override
protected OperationBinding getFetch() {
OperationBinding fetch = new OperationBinding();
fetch.setOperationType(DSOperationType.FETCH);
fetch.setDataProtocol(DSProtocol.POSTMESSAGE);
DSRequest fetchProps = new DSRequest();
fetchProps.setHttpMethod(httpMethod.toString());
fetch.setRequestProperties(fetchProps);
return fetch;
}
#Override
public String getFetchDataURL() {
return "/spring/fetchPatients";
}
#Override
protected OperationBinding getRemove() {
return null;
}
#Override
public String getRemoveDataURL() {
return null;
}
#Override
protected OperationBinding getAdd() {
return null;
}
#Override
public String getAddDataURL() {
return null;
}
#Override
protected OperationBinding getUpdate() {
return null;
}
#Override
public String getUpdateDataURL() {
return null;
}
}
My spring controller PatientControler
#Controller
public class PatienController {
Logger logger = Logger.getLogger(PatienController.class);
#Autowired
private PatientServices patientServices;
#RequestMapping(value = "/patientTest", method = RequestMethod.GET)
#ResponseBody
public Object getTest()
{
return patientServices.getAllPatients();
}
#RequestMapping(value = "/fetchPatients", method = RequestMethod.POST)
#ResponseBody
public Object getAllPatients()
{
return patientServices.getAllPatients();
}
}
PatientServiceImpl
public class PatientServicesImpl implements PatientServices {
public List<Patient> getAllPatients() {
List<Patient> patients = new ArrayList<Patient>();
Patient patient;
for(int i = 0 ; i < 500 ; i++){
patient = new Patient();
patient.setDateOfBirth(new Date());
patient.setFirstName("Joe");
patient.setMiddleName("Moe");
patient.setLastName("Blow");
patient.setLastConsultation(new Date());
patient.setSex(Sex.M);
patients.add(patient);
}
return patients;
}
}
*Im Really stuck right now i've been looking for all type of answers .... but so far nothing worked when i tried to override the transformResponse from my RestDataSource impentation the parameter "data" as an OBJECT, returns me an array [object Object],[object Object],[object Object],[object Object],[object Object] *
The Data which is transferred from the RestDataSource has a specific format which is described in the JavaDoc of the RestDataSource
Your server must understand the request and send back a valid response.
At the moment your example doesn't seem to honour the contract.
To debug the traffic send to and from your server you can use the SmartClient-Console. You can open it by a browser bookmark like this:
javascript:isc.showConsole()
Of cause you need to deploy this console by adding the following module to your gwt.xml
<inherits name="com.smartclient.tools.SmartClientTools"/>
Now go to the RPC Tab and check Track-RPCs