I am using spring data mongodb,after doing lazy loading true i am getting error "No serializer found for class org.springframework.data.mongodb.core.convert.DefaultDbRefResolver$LazyLoadingInterceptor".
My domain class is
public class Preference extends BaseEntity {
#DBRef(lazy = true)
User user;
MetadataEnum preferenceType;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public MetadataEnum getPreferenceType() {
return preferenceType;
}
public void setPreferenceType(MetadataEnum preferenceType) {
this.preferenceType = preferenceType;
}
public List<Subtype> getSubtypes() {
return subtypes;
}
public void setSubtypes(List<Subtype> subtypes) {
this.subtypes = subtypes;
}
List<Subtype> subtypes = new ArrayList<Subtype>();
boolean enableSearch;
}
i have wasted my time alot,but i am unable to get suitable answer of it? anyone can help me to reslove it?
Thanks in advance
Add this configuration code for your requirement
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.convert.LazyLoadingProxy;
import com.fasterxml.jackson.core.Version;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
#Configuration
public class LazyLoadingSerializationConfig {
#Bean
public ObjectMapper objectMapper() {
ObjectMapper om = new ObjectMapper();
final SimpleModule module = new SimpleModule("<your entity>", new Version(1, 0, 0,null));
module.addSerializer(LazyLoadingProxy.class, new LazyLoadingSerializer());
om.registerModule(module);
return om;
}
}
and
import java.io.IOException;
import org.springframework.data.mongodb.core.convert.LazyLoadingProxy;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
public class LazyLoadingSerializer extends JsonSerializer<LazyLoadingProxy> {
#Override
public void serialize(LazyLoadingProxy value, JsonGenerator jgen,
SerializerProvider provider) throws IOException,
JsonProcessingException {
jgen.writeStartObject();
jgen.writeStringField("id", value.toDBRef().getId().toString());
jgen.writeEndObject();
}
}
Hope this may help you!
switch off serializer for that bean because lazy loading with #DBRef works for list of entity only , jackson automatically serialize the #DBRef(lazy = true) List user but not for '#DBRef(lazy = true) User user. So you have to serialize it mannually or switch off serializer for that bean'.
Related
How can we create a multi-tenant application in spring webflux using Mongodb-reactive repository?
I cannot find any complete resources on the web for reactive applications. all the resources available are for non-reactive applications.
UPDATE:
In a non-reactive application, we used to store contextual data in ThreadLocal but this cannot be done with reactive applications as there is thread switching. There is a way to store contextual info in reactor Context inside a WebFilter, But I don't how get hold of that data in ReactiveMongoDatabaseFactory class.
Thanks.
I was able to Implement Multi-Tenancy in Spring Reactive application using mangodb. Main classes responsible for realizing were: Custom MongoDbFactory class, WebFilter class (instead of Servlet Filter) for capturing tenant info and a ThreadLocal class for storing tenant info. Flow is very simple:
Capture Tenant related info from the request in WebFilter and set it in ThreadLocal. Here I am sending Tenant info using header: X-Tenant
Implement Custom MondoDbFactory class and override getMongoDatabase() method to return database based on current tenant available in ThreadLocal class.
Source code is:
CurrentTenantHolder.java
package com.jazasoft.demo;
public class CurrentTenantHolder {
private static final ThreadLocal<String> currentTenant = new InheritableThreadLocal<>();
public static String get() {
return currentTenant.get();
}
public static void set(String tenant) {
currentTenant.set(tenant);
}
public static String remove() {
synchronized (currentTenant) {
String tenant = currentTenant.get();
currentTenant.remove();
return tenant;
}
}
}
TenantContextWebFilter.java
package com.example.demo;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
#Component
public class TenantContextWebFilter implements WebFilter {
public static final String TENANT_HTTP_HEADER = "X-Tenant";
#Override
public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
ServerHttpRequest request = exchange.getRequest();
if (request.getHeaders().containsKey(TENANT_HTTP_HEADER)) {
String tenant = request.getHeaders().getFirst(TENANT_HTTP_HEADER);
CurrentTenantHolder.set(tenant);
}
return chain.filter(exchange).doOnSuccessOrError((Void v, Throwable throwable) -> CurrentTenantHolder.remove());
}
}
MultiTenantMongoDbFactory.java
package com.example.demo;
import com.mongodb.reactivestreams.client.MongoClient;
import com.mongodb.reactivestreams.client.MongoDatabase;
import org.springframework.dao.DataAccessException;
import org.springframework.data.mongodb.core.SimpleReactiveMongoDatabaseFactory;
public class MultiTenantMongoDbFactory extends SimpleReactiveMongoDatabaseFactory {
private final String defaultDatabase;
public MultiTenantMongoDbFactory(MongoClient mongoClient, String databaseName) {
super(mongoClient, databaseName);
this.defaultDatabase = databaseName;
}
#Override
public MongoDatabase getMongoDatabase() throws DataAccessException {
final String tlName = CurrentTenantHolder.get();
final String dbToUse = (tlName != null ? tlName : this.defaultDatabase);
return super.getMongoDatabase(dbToUse);
}
}
MongoDbConfig.java
package com.example.demo;
import com.mongodb.reactivestreams.client.MongoClient;
import com.mongodb.reactivestreams.client.MongoClients;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.ReactiveMongoClientFactoryBean;
import org.springframework.data.mongodb.core.ReactiveMongoTemplate;
#Configuration
public class MongoDbConfig {
#Bean
public ReactiveMongoTemplate reactiveMongoTemplate(MultiTenantMongoDbFactory multiTenantMongoDbFactory) {
return new ReactiveMongoTemplate(multiTenantMongoDbFactory);
}
#Bean
public MultiTenantMongoDbFactory multiTenantMangoDbFactory(MongoClient mongoClient) {
return new MultiTenantMongoDbFactory(mongoClient, "test1");
}
#Bean
public ReactiveMongoClientFactoryBean mongoClient() {
ReactiveMongoClientFactoryBean clientFactory = new ReactiveMongoClientFactoryBean();
clientFactory.setHost("localhost");
return clientFactory;
}
}
UPDATE:
In reactive-stream we cannot store contextual information in ThreadLocal any more as the request is not tied to a single thread, So, This is not the correct solution.
However, Contextual information can be stored reactor Context in WebFilter like this. chain.filter(exchange).subscriberContext(context -> context.put("tenant", tenant));. Problem is how do get hold of this contextual info in ReactiveMongoDatabaseFactory implementation class.
Here is my very rough working solution for Spring WebFlux - they have since updated the ReactiveMongoDatabaseFactory - getMongoDatabase to return a Mono
Create web filter
public class TenantContextFilter implements WebFilter {
private static final Logger LOGGER = LoggerFactory.getLogger(TenantContextFilter.class);
#Override
public Mono<Void> filter(ServerWebExchange swe, WebFilterChain wfc) {
ServerHttpRequest request = swe.getRequest();
HttpHeaders headers = request.getHeaders();
if(headers.getFirst("X-TENANT-ID") == null){
LOGGER.info(String.format("Missing X-TENANT-ID header"));
throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
}
String tenantId = headers.getFirst("X-TENANT-ID");
LOGGER.info(String.format("Processing request with tenant identifier [%s]", tenantId));
return wfc.filter(swe)
.contextWrite(TenantContextHolder.setTenantId(tenantId));
}
}
Create class to get context (credit to somewhere I found this)
public class TenantContextHolder {
public static final String TENANT_ID = TenantContextHolder.class.getName() + ".TENANT_ID";
public static Context setTenantId(String id) {
return Context.of(TENANT_ID, Mono.just(id));
}
public static Mono<String> getTenantId() {
return Mono.deferContextual(contextView -> {
if (contextView.hasKey(TENANT_ID)) {
return contextView.get(TENANT_ID);
}
return Mono.empty();
}
);
}
public static Function<Context, Context> clearContext() {
return (context) -> context.delete(TENANT_ID);
}
}
My spring security setup (all requests allowed for testing)
#EnableWebFluxSecurity
#EnableReactiveMethodSecurity
public class SecurityConfig {
#Bean
public SecurityWebFilterChain WebFilterChain(ServerHttpSecurity http) {
return http
.formLogin(it -> it.disable())
.cors(it -> it.disable()) //fix this
.httpBasic(it -> it.disable())
.csrf(it -> it.disable())
.securityContextRepository(NoOpServerSecurityContextRepository.getInstance())
.authorizeExchange(it -> it.anyExchange().permitAll()) //allow anonymous
.addFilterAt(new TenantContextFilter(), SecurityWebFiltersOrder.HTTP_BASIC)
.build();
}
}
Create Tenant Mongo DB Factory
I still have some clean-up work for defaults etc...
public class MultiTenantMongoDBFactory extends SimpleReactiveMongoDatabaseFactory {
private static final Logger LOGGER = LoggerFactory.getLogger(MultiTenantMongoDBFactory.class);
private final String defaultDb;
public MultiTenantMongoDBFactory(MongoClient mongoClient, String databaseName) {
super(mongoClient, databaseName);
this.defaultDb = databaseName;
}
#Override
public Mono<MongoDatabase> getMongoDatabase() throws DataAccessException {
return TenantContextHolder.getTenantId()
.map(id -> {
LOGGER.info(String.format("Database trying to retrieved is [%s]", id));
return super.getMongoDatabase(id);
})
.flatMap(db -> {
return db;
})
.log();
}
}
Configuration Class
#Configuration
#EnableReactiveMongoAuditing
#EnableReactiveMongoRepositories(basePackages = {"com.order.repository"})
class MongoDbConfiguration {
#Bean
public ReactiveMongoDatabaseFactory reactiveMongoDatabaseFactory() {
return new MultiTenantMongoDBFactory(MongoClients.create("mongodb://user:password#localhost:27017"), "tenant_catalog");
}
#Bean
public ReactiveMongoTemplate reactiveMongoTemplate() {
ReactiveMongoTemplate template = new ReactiveMongoTemplate(reactiveMongoDatabaseFactory());
template.setWriteResultChecking(WriteResultChecking.EXCEPTION);
return template;
}
}
Entity Class
#Document(collection = "order")
//getters
//setters
Testing
Create two mongo db's with same collection, put different documents in both
In Postman I just did a get request with the "X-TENANT-ID" header and database name as the value (e.g. tenant-12343 or tenant-34383) and good to go!
Im trying to setup mongodb with SpringBoot and im not using context.xml but trying to configure with configuration class and annotations.
package com.configuration;
import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.config.AbstractMongoConfiguration;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
#Configuration
#EnableMongoRepositories(basePackages = "com.mongo")
public class MongoConfig extends AbstractMongoConfiguration {
#Override
protected String getDatabaseName() {
return "mongodbname";
}
#Override
public Mongo mongo() throws Exception {
return new MongoClient("127.0.0.1", 27017);
}
#Override
protected String getMappingBasePackage() {
return "com.mongo";
}
}
My repository looks like this :
package com.mongo.repositories;
import com.mongo.documents.Sequence;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Repository;
import java.util.List;
#Repository("sequenceRepository")
public class SequenceRepository{
#Autowired
private MongoTemplate mongoTemplate;
public Sequence findOne(Query query){
return this.mongoTemplate.findOne(query,Sequence.class);
}
public List<Sequence> find(Query query){
return this.mongoTemplate.find(query,Sequence.class);
}
public void save(Sequence object){
this.mongoTemplate.save(object);
}
public void delete(Sequence object){
this.mongoTemplate.remove(object);
}
}
If i use like this in the rest controller it is working properly :
package com.controllers;
import com.mongo.documents.Sequence;
import com.mongo.repositories.SequenceRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class IndexController {
#Autowired
private SequenceRepository sequenceRepository;
#RequestMapping("/")
public String index(){
Sequence sequence = new Sequence();
sequence.setClassName("class.Test");
sequence.setActual(1);
sequenceRepository.save(sequence);
return "index";
}
}
But if i want to use the SequenceRepository inside the Sequence document like this :
package com.mongo.documents;
import com.mongo.repositories.SequenceRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
#Document
public class Sequence {
#Autowired
private SequenceRepository sequenceRepository;
#Id
private String id;
private String className;
private int actual;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
public int getActual() {
return actual;
}
public void setActual(int actual) {
this.actual = actual;
}
public void save(){
this.sequenceRepository.save(this);
}
public void delete(){
this.sequenceRepository.delete(this);
}
}
After that I change the code in the controller to :
package com.controllers;
import com.mongo.documents.Sequence;
import com.mongo.repositories.SequenceRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class IndexController {
#Autowired
private SequenceRepository sequenceRepository;
#RequestMapping("/")
public String index(){
Sequence sequence = new Sequence();
sequence.setClassName("class.Test");
sequence.setActual(1);
sequence.save();
return "index";
}
}
I got a nullPointerExceeption at this point in the save() method.
There is no need to inject your Repository inside your Domain object Sequence as it is really bad design to have a dependency between the domain objects and your repository classes.
To follow some good practices, your Service classes or if you don't need a Service layer, your Controller classes should inject your Repository beans.
In your last code snippet your are already doing it, but the .save() method should be called on your repository SequenceRepository and not on the domain object Sequence.
An example could be the following:
#RestController
public class IndexController {
#Autowired
private SequenceRepository sequenceRepository;
#RequestMapping("/")
public String index(){
Sequence sequence = new Sequence();
sequence.setClassName("class.Test");
sequence.setActual(1);
// now let's save it
sequenceRepository.save(sequence);
return "index";
}
}
You can only autowire Spring-managed components into other Spring-managed components. Your sequence object is not a component (not annotated with #Component, #Service, #Repository or #Controller etc.)
I suggest you follow rieckpil's advice.
I am trying to invoke a POST service via Postman. My application is running on embedded tomcat server. However when I try to invoke the service, the error I get is "No mapping found for HTTP request with URI [/findrouting] in DispatcherServlet with name 'dispatcherServlet'"
It is not even recognizing http:localhost:8080/
RoutingRequest and RoutingResponse are the POJOs with getters and setters.
Am I missing something here. I did check lots of examples but didn't find any solution to my problem.
Please see my code below :
package com.ab.hello.ambassador.server;
import java.util.Arrays;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(AmbassadorApplication.class, args);
System.out.println("List of Beans instantiated");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
System.out.println(beanName);
}
}
}
package com.ab.hello.ambassador.server.controller;
import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
import static org.springframework.web.bind.annotation.RequestMethod.POST;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.dp.connect.ambassador.server.RoutingRequest;
import com.dp.connect.ambassador.server.RoutingResponse;
#RestController
public class ApplicationController {
#RequestMapping("/")
public String index() {
return "Spring Boot POC Welcomes You!";
}
#RequestMapping(method = POST, value = "/findrouting", consumes = { APPLICATION_JSON_VALUE }, produces = {
APPLICATION_JSON_VALUE })
public RoutingResponse findRoute(#RequestBody RoutingRequest request) throws Exception {
// some business logic that would return response; as of now I have set it to null
RoutingResponse response = null;
return response;
}
}
Thanks for your time. After struggling for quite a long time. I figured out this piece of code. Added annotation #EnableWebMvc. This solved my problem.
#SpringBootApplication
#EnableWebMvc
public class Application extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
Try to define the path in your controller:
#RestController
#RequestMapping("/")
public class ApplicationController {
#RequestMapping
public String index() {
return "Spring Boot POC Welcomes You!";
}
#RequestMapping(method = POST, value = "/findrouting", consumes = { APPLICATION_JSON_VALUE }, produces = {
APPLICATION_JSON_VALUE })
public RoutingResponse findRoute(#RequestBody RoutingRequest request) throws Exception {
// some business logic that would return response; as of now I have set it to null
RoutingResponse response = null;
return response;
}
}
Change the below line
ApplicationContext ctx = SpringApplication.run(AmbassadorApplication.class, args);
with
ApplicationContext ctx = SpringApplication.run(Application.class, args);
according to spring docs , seems need to Override a config method:
#SpringBootApplication
public class Application extends SpringBootServletInitializer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
I would like to set a global custom date/Time deserializer on a camel route that is configured with rest.
What I already found is Camel + Jackson : Register a module for all deserialization
But I do not have the unmarshal() method in the route, but use the
RestDefinition rest(String path)
method from
org.apache.camel.builder.RouteBuilder.
We do not use Spring, but plain Camel with Scala and REST all configuration done programmatically (no xml).
My current solution is to use
#JsonDeserialize(using = classOf[MyDeserializer])
annotation on every date/time field, but that is not a satisfying solution.
Does anybody have a clue how to configure Camel to use the custom deserializer everywhere?
By default camel use DATES_AS_TIMESTAMPS feature. to disable this featuer just add .dataFormatProperty("json.out.disableFeatures", "WRITE_DATES_AS_TIMESTAMPS")
Also you can add custom serializer:
module.addSerializer(Date.class, sample.new DateSerializer());
and binding with name json-jackson
jndiContext.bind("json-jackson", jackson);
example:
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.GregorianCalendar;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.jackson.JacksonDataFormat;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.model.rest.RestBindingMode;
import org.apache.camel.spi.DataFormat;
import org.apache.camel.util.jndi.JndiContext;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.Version;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
public class Samlpe3 {
public static void main(String[] args) throws Exception {
Samlpe3 sample = new Samlpe3();
//custom mapper
ObjectMapper objectMapper = new ObjectMapper();
SimpleModule module = new SimpleModule("DefaultModule", new Version(0, 0, 1, null, null, null));
module.addSerializer(Date.class, sample.new DateSerializer());
module.addSerializer(Person.class, sample.new PersonSerializer());
objectMapper.registerModule(module);
JacksonDataFormat jackson = new JacksonDataFormat(objectMapper, null);
JndiContext jndiContext = new JndiContext();
jndiContext.bind("json-jackson", jackson);
CamelContext context = new DefaultCamelContext(jndiContext);
context.addRoutes(new RouteBuilder() {
public void configure() throws Exception {
restConfiguration().component("jetty").bindingMode(RestBindingMode.json)
.host("0.0.0.0").contextPath("/test").port(8080)
//disableFeatures WRITE_DATES_AS_TIMESTAMPS
.dataFormatProperty("json.out.disableFeatures", "WRITE_DATES_AS_TIMESTAMPS")
;
rest("/v1/").produces("application/json")
.get("persons")
.to("direct:getPersons");
from("direct:getPersons")
.process(new Processor() {
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody(new Person("Sergey", new GregorianCalendar().getTime()));
}
})
;
}
});
context.start();
Thread.sleep(60000);
context.stop();
}
public class DateSerializer extends JsonSerializer<Date> {
#Override
public void serialize(Date value, JsonGenerator gen, SerializerProvider serializers)
throws IOException, JsonProcessingException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String date = sdf.format(value);
gen.writeString(date);
}
}
public class PersonSerializer extends JsonSerializer<Person> {
#Override
public void serialize(Person value, JsonGenerator gen, SerializerProvider serializers)
throws IOException, JsonProcessingException {
gen.writeStartObject();
gen.writeFieldName("Changed_n");
gen.writeObject(value.getName() + " Changed");
gen.writeFieldName("Changed_b");
gen.writeObject(value.getBirthday());
gen.writeEndObject();
}
}
}
Person.java:
import java.util.Date;
public class Person {
private String name;
private Date birthday;
Person(String name, Date birhday){
System.out.println("Person");
this.setBirthday(birhday);
this.setName(name);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
}
I struggle with Editor framework of gwt. Mostly because the documentation is lame- no hurt feelings- just saying.
Now I have problem that I cannot execute button event on editor. This is my error:
Uncaught com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) : Cannot read property 'onLoginButtonClick_3_g$' of undefined
I am not sure what I am doing wrong. I didn't found any good example of that. I hope someone will help.
Here is my code:
Editor
public class LoginEditor extends ViewWithUiHandlers<LoginEditorUiHandlers> implements Editor<LoginModel> {
private VerticalPanel widget = new VerticalPanel();
MaterialTextBox email = new MaterialTextBox();
MaterialTextBox password = new MaterialTextBox();
MaterialButton btnLogin = new MaterialButton();
public LoginEditor() {
initWidget(widget);
email.setPlaceholder("E-mail");
password.setPlaceholder("Password");
btnLogin.setText("Login");
btnLogin.addClickHandler(new ClickHandler() {
#Override public void onClick(ClickEvent event) {
onLoginButtonClick(event);
}
});
widget.add(email);
widget.add(password);
widget.add(btnLogin);
}
void onLoginButtonClick(ClickEvent e){
getUiHandlers().onLoginButtonClick();
Window.alert("TEST");
}
}
Presenter
public class LoginPresenter extends Presenter<LoginPresenter.MyView, LoginPresenter.MyProxy> implements LoginEditorUiHandlers {
public interface MyView extends View , HasUiHandlers<LoginEditorUiHandlers> {}
public static final Type<RevealContentHandler<?>> SLOT_Login = new Type<RevealContentHandler<?>>();
#ProxyStandard
#NameToken(NameTokens.login)
public interface MyProxy extends ProxyPlace<LoginPresenter> {}
// Editor
interface Driver extends SimpleBeanEditorDriver<LoginModel, LoginEditor> {}
private static final LoginService service = GWT.create(LoginService.class);
Driver editorDriver = GWT.create(Driver.class);
private LoginModel model = new LoginModel("email","pass");
private LoginEditor editor = new LoginEditor();
#Override
public void onLoginButtonClick() {
MaterialToast.fireToast("TEST");
try{
System.out.println(editorDriver == null);
System.out.println(editorDriver.isDirty());
editorDriver.isDirty();
} catch (NullPointerException e) {
MaterialToast.fireToast("Null: " + e.getLocalizedMessage());
}
if (editorDriver.isDirty()) {
model = editorDriver.flush();
if (editorDriver.hasErrors()) {
StringBuilder errorBuilder = new StringBuilder();
for (EditorError error : editorDriver.getErrors()) {
errorBuilder.append(error.getMessage() + "\n");
}
MaterialToast.fireToast(errorBuilder.toString());
} else {
service.login(
model, new MethodCallback<Integer>() {
#Override
public void onSuccess(Method method, Integer response) {
MaterialToast.fireToast("Succefully set info. status code: " + response);
}
#Override
public void onFailure(Method method, Throwable exception) {
MaterialToast.fireToast("Error setting");
}
});
}
} else {
MaterialToast.fireToast("Data has not changed");
}
}
#Inject
LoginPresenter(
EventBus eventBus,
MyView view,
MyProxy proxy) {
super(eventBus, view, proxy, RevealType.Root);
editorDriver.initialize(editor);
editorDriver.edit(model);
getView().setUiHandlers(this);
}
}
View
public class LoginView extends ViewWithUiHandlers<LoginEditorUiHandlers> implements LoginPresenter.MyView {
interface Binder extends UiBinder<Widget, LoginView> {
}
#Inject
LoginView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
}
}
View.ui.xml
<m:MaterialRow ui:field="loginWidget">
<m:MaterialColumn grid="s12 m4 l4" offset="l4" >
<m:MaterialTitle title="Login" description="Please provide your account credentials."/>
<m:MaterialPanel padding="5" shadow="1" addStyleNames="{style.panel}">
<m:MaterialPanel addStyleNames="{style.fieldPanel}">
<e:LoginEditor></e:LoginEditor>
</m:MaterialPanel>
</m:MaterialPanel>
</m:MaterialColumn>
</m:MaterialRow>
UiHandlers
interface LoginEditorUiHandlers extends UiHandlers {
void onLoginButtonClick();
}
interface LoginUiHandlers extends UiHandlers {
}
Here is working solution:
Presenter
package pl.korbeldaniel.cms.client.login;
import java.util.ArrayList;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import org.fusesource.restygwt.client.Method;
import org.fusesource.restygwt.client.MethodCallback;
import gwt.material.design.client.ui.MaterialToast;
import com.google.gwt.core.shared.GWT;
import com.google.gwt.editor.client.EditorError;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.google.gwt.event.shared.GwtEvent.Type;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.inject.Inject;
import com.google.web.bindery.event.shared.EventBus;
import com.gwtplatform.mvp.client.Presenter;
import com.gwtplatform.mvp.client.annotations.ProxyStandard;
import com.gwtplatform.mvp.client.proxy.ProxyPlace;
import com.gwtplatform.mvp.client.annotations.NameToken;
import com.gwtplatform.mvp.client.proxy.RevealContentHandler;
import com.gwtplatform.mvp.client.HasUiHandlers;
import pl.korbeldaniel.cms.client.editor.BeanEditView;
import pl.korbeldaniel.cms.client.model.LoginModel;
import pl.korbeldaniel.cms.client.place.NameTokens;
import pl.korbeldaniel.cms.client.service.LoginService;
public class LoginPresenter extends Presenter<LoginPresenter.MyView, LoginPresenter.MyProxy> implements LoginUiHandlers {
public interface MyView extends BeanEditView<LoginModel>, HasUiHandlers<LoginUiHandlers> {}
public static final Type<RevealContentHandler<?>> SLOT_Login = new Type<RevealContentHandler<?>>();
#ProxyStandard
#NameToken(NameTokens.login)
public interface MyProxy extends ProxyPlace<LoginPresenter> {}
// Editor
private SimpleBeanEditorDriver<LoginModel, ?> editorDriver;
private static final LoginService service = GWT.create(LoginService.class);
private LoginModel model = new LoginModel("","");
#Override
public void onLoginButtonClick() {
String msg = "User Pressed a button.";
GWT.log(msg);
if (editorDriver.isDirty()) {
model = editorDriver.flush();
validateModel();
GWT.log(String.valueOf(editorDriver.hasErrors()));
if (editorDriver.hasErrors()) {
MaterialToast.fireToast("Errors occur");
StringBuilder errorBuilder = new StringBuilder();
for (EditorError error : editorDriver.getErrors()) {
GWT.log(error.getMessage());
errorBuilder.append(error.getMessage() + "\n");
}
//MaterialToast.fireToast(errorBuilder.toString());
RootPanel.get().add(new Label(errorBuilder.toString()));
} else {
service.login(
model, new MethodCallback<Integer>() {
#Override
public void onSuccess(Method method, Integer response) {
MaterialToast.fireToast("Succefully set info. status code: " + response);
}
#Override
public void onFailure(Method method, Throwable exception) {
MaterialToast.fireToast("Error setting");
}
});
}
} else {
MaterialToast.fireToast("Data has not changed");
}
}
private void validateModel() {
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<LoginModel>> violations = validator.validate(model);
GWT.log(String.valueOf(violations.size()));
if (violations.size() > 0) {
editorDriver.setConstraintViolations(new ArrayList<ConstraintViolation<?>>(violations));
}
}
#Inject
LoginPresenter(EventBus eventBus,MyView view, MyProxy proxy) {
super(eventBus, view, proxy, RevealType.Root);
getView().setUiHandlers(this);
editorDriver = getView().createEditorDriver();
editorDriver.edit(model);
}
}
View/Editor
package pl.korbeldaniel.cms.client.login;
import gwt.material.design.client.ui.MaterialButton;
import gwt.material.design.client.ui.MaterialCheckBox;
import gwt.material.design.client.ui.MaterialTextBox;
import javax.inject.Inject;
import pl.korbeldaniel.cms.client.model.LoginModel;
import com.google.gwt.core.client.GWT;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Widget;
import com.gwtplatform.mvp.client.ViewWithUiHandlers;
public class LoginView extends ViewWithUiHandlers<LoginUiHandlers> implements LoginPresenter.MyView {
interface Binder extends UiBinder<Widget, LoginView> {}
/** The driver to link the proxy bean with the view. */
public interface EditorDriver extends SimpleBeanEditorDriver<LoginModel, LoginView> { }
#UiField MaterialTextBox email;
#UiField MaterialTextBox password;
#UiField MaterialButton loginButton;
#UiField MaterialCheckBox keepMeLoggedInCheckbox;
#Inject
LoginView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
addClickHandlerToLoginButton();
}
//#UiHandler("loginButton")
private void onLoginButtonClick(ClickEvent e){
getUiHandlers().onLoginButtonClick();
}
private void addClickHandlerToLoginButton() {
loginButton.addClickHandler(new ClickHandler() {
#Override public void onClick(ClickEvent event) {
onLoginButtonClick(event);
}
});
}
#Override
public SimpleBeanEditorDriver<LoginModel, ?> createEditorDriver() {
EditorDriver driver = GWT.create(EditorDriver.class);
driver.initialize(this);
return driver;
}
}
ValidatorFactory
package pl.korbeldaniel.cms.client.login;
import javax.validation.Validator;
import pl.korbeldaniel.cms.client.model.LoginModel;
import com.google.gwt.core.client.GWT;
import com.google.gwt.validation.client.AbstractGwtValidatorFactory;
import com.google.gwt.validation.client.GwtValidation;
import com.google.gwt.validation.client.impl.AbstractGwtValidator;
public final class SampleValidatorFactory extends AbstractGwtValidatorFactory {
/**
* Validator marker for the Validation Sample project. Only the classes and
* groups listed in the {#link GwtValidation} annotation can be validated.
*/
#GwtValidation(LoginModel.class)
public interface GwtValidator extends Validator {
}
#Override
public AbstractGwtValidator createValidator() {
return GWT.create(GwtValidator.class);
}
}
UiHandlers
package pl.korbeldaniel.cms.client.login;
import com.gwtplatform.mvp.client.UiHandlers;
interface LoginUiHandlers extends UiHandlers {
void onLoginButtonClick();
}
Bean edit view interface
package pl.korbeldaniel.cms.client.editor;
import com.google.gwt.editor.client.Editor;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.gwtplatform.mvp.client.View;
/**
* Implemented by views that edit beans.
*
* #param <B> the type of the bean
*/
public interface BeanEditView<B> extends View, Editor<B> {
/**
* #return a new {#link SimpleBeanEditorDriver} initialized to run this editor
*/
SimpleBeanEditorDriver<B, ?> createEditorDriver();
}
I hope it will help some one.