I'm using Spring Boot with Kotlin and Java8 time. Somehow the Jackson annotations on the data class fields are ignored.
import com.fasterxml.jackson.annotation.JsonProperty
import java.time.MonthDay
data class DataView(val id: String,
#get:JsonProperty("dayOfMonth") val monthDay: MonthDay) {}
Why would these annotations be ignored? The response still contains the field name "monthDay".
I know the annotation is correct, according to this discussion on discuss.kotlinlang.org.
I don't have any configurations that should affect this, as far as I know.
pom contains:
...
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>1.5.6.RELEASE</version>
<relativePath/>
</parent>
...
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-hibernate5</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-hppc</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-json-org</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-afterburner</artifactId>
</dependency>
...
Very strange. I check this code local, and all looks fine
data class DataView(val id: String,
#get:JsonProperty("dayOfMonth") val monthDay: MonthDay)
data class MonthDay(val day: Int)
fun main(args: Array<String>) {
val objectMapper = ObjectMapper()
.registerKotlinModule()
val dataView = DataView("someId", MonthDay(1))
//{"id":"someId","dayOfMonth":{"day":1}}
println(objectMapper.writeValueAsString(dataView))
}
It works same even if I remove registerKotlinModule and change from #get to #field.
Related
I have created a service with Spring Boot and Reactor. I try to test with Cucumber.
POM file (extract):
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.2</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/io.cucumber/cucumber-java -->
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-java</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-spring</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-junit-platform-engine</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-suite</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-console</artifactId>
<scope>test</scope>
</dependency>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-bom</artifactId>
<version>7.10.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.junit</groupId>
<artifactId>junit-bom</artifactId>
<version>5.9.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
My cucumber configuration looks like this:
#Suite
class CucumberTestRunner
#CucumberContextConfiguration
#ContextConfiguration(classes = [CucumberBootstrap::class])
#SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = [MyApplication::class])
class CucumberSpringContextConfig
#ComponentScan("com.mypackage")
#Configuration
class CucumberBootstrap
The step definition I'm working on is like this:
#ScenarioScope
class MyTestStepDefs(
private val service: MyService
) {
#Given("User is authenticated")
fun userIsAuthenticated() {
val auth = UsernamePasswordAuthenticationToken(
User("username", "password", emptyList()),
"credentials",
emptyList<GrantedAuthority>()
)
val context = ReactiveSecurityContextHolder.getContext().block()
//ReactiveSecurityContextHolder.getContext()
// .doOnNext { it.authentication = auth }
// .block()
}
...
}
I would like to set the authenticated user into the security context. But unfortunately, the security context is always null.
I have also regular Springt Boot Tests running, where the security context is correctly returned. Here is an extract:
#SpringBootTest(webEnvironment = RANDOM_PORT)
#Transactional(propagation = Propagation.NOT_SUPPORTED)
class MyControllerTests #Autowired constructor(
private val client: WebTestClient
) {
#Test
#WithMockUser
fun `post instruction set`() {
val context = ReactiveSecurityContextHolder.getContext().block()
...
}
...
}
The service class is injected correctly into the step definitions class.
Does anyone have a hint what's missing in the configuration?
Thanks in advance for your help!
The tests that work use the #WithMockUser annotation which work (as described here) because this enables the WithSecurityContextTestExecutionListener.
Unfortunately you can't use this with Cucumber, Cucumber doesn't have a single test method. But ultimately this listener sets the context using:
this.securityContextHolderStrategyConverter.convert(testContext).setContext(supplier.get())
This then invokes (via some indirection):
TestSecurityContextHolder.setContext(context)
Which you could do inside Cucumber too. Though you may want to review the implementation of the WithSecurityContextTestExecutionListener for what exactly you're trying to reproduce.
Alternatively you can do your test end-to-end including the authentication.
Based on M.P. Korstanje's description, I implemented the step as follows:
#Given("User is authenticated")
fun userIsAuthenticated() {
val auth = UsernamePasswordAuthenticationToken(
User("username", "password", emptyList()),
"credentials",
emptyList<GrantedAuthority>()
)
val context = TestSecurityContextHolder.getContext()
context.authentication = auth
val newContext = ReactiveSecurityContextHolder.getContext().block()
assertEquals(auth, newContext?.authentication, "Wrong authentication stored in security context")
}
I am building a simple example with Spring boot + GrapQL
package com.example.graphql
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
import org.springframework.graphql.data.method.annotation.QueryMapping
import org.springframework.web.bind.annotation.RestController
#SpringBootApplication
class GraphqlApplication
fun main(args: Array<String>) {
runApplication<GraphqlApplication>(*args)
}
#RestController
class MyQueryController {
#QueryMapping
fun message(): Message = Message("1","some-text")
}
data class Message(var id: String, var text: String) {
}
then I got the schema under src/main/resources/graphql/schema.graphqls withe the following
type Query {
message: Message
}
type Message {
id: String
text: String
}
When I try to go to http://localhost:8080/graphql I got [95221568-1] Completed 405 METHOD_NOT_ALLOWED, headers={masked}
Any clue ?
this are dependencies in the pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
....
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-graphql</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor.kotlin</groupId>
<artifactId>reactor-kotlin-extensions</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlinx</groupId>
<artifactId>kotlinx-coroutines-reactor</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.graphql</groupId>
<artifactId>spring-graphql-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
....
As explained by #d.j.brown in the comments, Spring for GraphQL does not support GET queries on the "/graphql" endpoint, even though it can be supported by other implementations. Only POST HTTP requests are supported.
If you'd like to explore your API, you can enable the graphiql UI by enabling it in the configuration properties with spring.graphql.graphiql.enabled=true and browsing http://localhost:8080/graphiql. From there, you'll be able to craft and send GraphQL queries using this playground tool.
I use Java 10 with latest Spring spring-boot-starter-parent 2.1.0.RELEASE
POM configuration:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.7</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-jaxb-annotations</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.9.7</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.codehaus.woodstox</groupId>
<artifactId>woodstox-core-asl</artifactId>
<version>4.4.1</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-jdk8</artifactId>
<version>1.2.0.Final</version>
</dependency>
<dependency>
<groupId>org.jxls</groupId>
<artifactId>jxls-poi</artifactId>
<version>1.0.15</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.1.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
</dependencies>
Rest Endpoint:
#GetMapping("{id}")
public ResponseEntity<?> get(#PathVariable String id) {
return transactionRepository
.findById(Integer.parseInt(id))
.map(mapper::toDTO)
.map(ResponseEntity::ok)
.orElseGet(() -> notFound().build());
}
DTO:
public class PaymentTransactionsDTO {
private Integer id;
private String status;
private LocalDateTime created_at;
private String merchant;
.... getters and setters
}
But when I try to return JSON data for LocalDateTime created_at I get empty result. I suppose that LocalDateTime is not properly converted into JSON value.
Can you advice how I can fix this issue?
JSON serialization is driven by Jackson's ObjectMapper, which I recommend configuring explicitely. For proper serialization of the Java 8 date and time objects, make sure to
register the JavaTimeModule
disable writing dates as timestamps
setting the date format (use StdDateFormat)
Description of StdDateFormat:
Default DateFormat implementation used by standard Date
serializers and deserializers. For serialization defaults to using an
ISO-8601 compliant format (format String "yyyy-MM-dd'T'HH:mm:ss.SSSZ")
and for deserialization, both ISO-8601 and RFC-1123.
Recommended configuration:
#Configuration
public class JacksonConfig {
#Bean
public ObjectMapper objectMapper() {
return new ObjectMapper()
.setAnnotationIntrospector(new JacksonAnnotationIntrospector())
.registerModule(new JavaTimeModule())
.setDateFormat(new StdDateFormat())
.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
}
}
}
Examples of serialized date and time objects:
LocalDate: 2018-11-21
LocalTime: 11:13:13.274
LocalDateTime: 2018-11-21T11:13:13.274
ZonedDateTime: 2018-11-21T11:13:13.274+01:00
Edit: standalone dependencies (already included transitively in spring-boot-starter-web):
com.fasterxml.jackson.core:jackson-annotations
com.fasterxml.jackson.core:jackson-databind
com.fasterxml.jackson.datatype:jackson-datatype-jsr310
Try using #JsonFormat on your created_at field.
#JsonFormat(pattern="yyyy-MM-dd")
#DateTimeFormat(iso = DateTimeFormat.ISO.TIME)
private LocalDateTime created_at;
You need to add converter and register in spring eg.
baeldung.com/spring-mvc-custom-data-binder
You can type your PaymentTransactionsDTO "created_at" attribute as a String and use a converter to convert the String to LocalDate (type of the attribute created_at of your entity "PaymentTransactions")
#Component
public class PaymentTransactionsConverter implements Converter<PaymentTransactionsDTO, PaymentTransactions> {
#Override
public PaymentTransactions convert(PaymentTransactionsDTO paymentTransactionsDTO) {
PaymentTransactions paymentTransactions = new PaymentTransactions();
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
...
paymentTransactions.setCreated_at(LocalDate.parse(paymentTransactionsDTO.getCreated_at(), formatter));
return paymentTransactions;
}
}
My dates defined as LocalDateTime were been serializaded as an array like this:
"timestamp": [
2023,
2,
15,
10,
30,
45,
732425200
],
So following the Peter Walser answer and using some code of that topic, here is what I did in my WebConfig.java:
#Configuration
#EnableWebMvc
public class WebConfig implements WebMvcConfigurer {
// other configs
#Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
WebMvcConfigurer.super.extendMessageConverters(converters);
converters.add(new MappingJackson2HttpMessageConverter(
new Jackson2ObjectMapperBuilder()
.dateFormat(new StdDateFormat())
.featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
.build()));
}
}
Now everything is good again:
"timestamp": "2023-02-15T10:32:06.5170689",
Try play around with some Jackson builder properties, hope it's been helpful.
When trying to cache a PageImpl response from a Spring Data JpaRepository using Spring Data Geode, it fails to cache the result with the following error:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.domain.PageImpl]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.springframework.data.domain.PageImpl.<init>()
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:127) ~[spring-beans-5.0.6.RELEASE.jar:5.0.6.RELEASE]
at org.springframework.data.convert.ReflectionEntityInstantiator.createInstance(ReflectionEntityInstantiator.java:64) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
at org.springframework.data.convert.ClassGeneratingEntityInstantiator.createInstance(ClassGeneratingEntityInstantiator.java:86) ~[spring-data-commons-2.0.7.RELEASE.jar:2.0.7.RELEASE]
at org.springframework.data.gemfire.mapping.MappingPdxSerializer.fromData(MappingPdxSerializer.java:422) ~[spring-data-gemfire-2.0.7.RELEASE.jar:2.0.7.RELEASE]
at org.apache.geode.pdx.internal.PdxReaderImpl.basicGetObject(PdxReaderImpl.java:741) ~[geode-core-9.1.1.jar:?]
at org.apache.geode.pdx.internal.PdxReaderImpl.getObject(PdxReaderImpl.java:682) ~[geode-core-9.1.1.jar:?]
at org.apache.geode.internal.InternalDataSerializer.readPdxSerializable(InternalDataSerializer.java:3054) ~[geode-core-9.1.1.jar:?]
It looks like the MappingPdxSerializer looks for a default constructor but doesn't find it for a PageImpl class.
Here is maven pom for the dependencies I have:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.BUILD-SNAPSHOT</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-gemfire</artifactId>
</dependency>
<dependency>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-text</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.11</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.6</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
The JpaRepository I am using is:
#RepositoryRestResource
public interface RecordRepository extends JpaRepository<Record, Long>
{
#Override
#CacheEvict(cacheNames = { "Records" })
<S extends Record> S save(S s);
#Override
#Cacheable(value = "Records")
Optional<Record> findById(Long id);
#Override
#Cacheable(value = "Records", key = "#pageable.pageNumber + '.' + #pageable.pageSize + '.records'")
Page<Record> findAll(Pageable pageable);
#Override
#Cacheable(value = "Records")
Record getOne(Long aLong);
}
The code used to invoke a repository paged result is:
int PAGE=0,PAGE_SIZE=100;
Page<Record> recordPage;
do {
recordPage = recordRepository.findAll(PageRequest.of(PAGE, PAGE_SIZE));
log.info("Retrieved page: [{}]", recordPage);
} while (recordPage.hasNext());
I feel like it maybe a possible bug with the MappingPdxSerializer, but I'm not 100% sure. Any help in resolving this issue would be awesome!
Thanks
Why do you feel this is a possible bug with Spring Data Geode's (SDG) o.s.d.g.mapping.MappingPdxSerializer?
It is quite common, and even expected, that not all objects passed through SDG's MappingPdxSerializer will have a default (i.e. public, no-arg) constructor.
When using such types in your application (e.g. like the SD PageImpl class) and an instance of that type is read from Apache Geode (e.g. get(key)), the object is de-serialized and reconstructed on the (Region) data access operation (providing Apache Geode's read-serialized configuration attribute is not set to true; which cause you other problems and not recommended in this case), then you need to register an EntityInstantiator that informs SDG's MappingPdxSerializer how to instantiate the object, using an appropriate constructor.
The "appropriate" constructor is determined by the persistent entity's PreferredConstructor, which is evaluated during type evaluation by the SD Mapping Infrastructure, and can be specified with the #PersistenceContructor annotation, if necessary. This is useful in cases where you are using 1 of SD's canned EntityIntantiator types, e.g. ReflectionEntityInstantiator, and your application domain type has more than 1 non-default constructor.
Therefore, you can register 1 or more EntityInstantiator objects per application domain object by type using the EntityIntantiatiors composite class, perhaps with a "mapping" between application domain object Class type (e.g. Page) and EntityInstantiator, and then register the EntityInstantiators on SDG's MappingPdxSerializer.
Of course, you need to make sure that custom configured MappingPdxSerializer gets used by Apache Geode...
#Configuration
class ApacheGeodeConfiration {
#Bean
MappingPdxSerializer pdxSerializer() {
Map<Class<?>, EntityInstantiator> customInstantiators = new HashMap<>();
customInstantiators.put(Page.class, new MyPageEntityInstantiator());
customInstantiators.put...
MappingPdxSerializer pdxSerializer =
MappingPdxSerializer.newMappingPdxSerializer();
pdxSerializer.setGemfireInstantiators(
new EntityInstantiators(customInstantiators));
return pdxSerializer;
}
#Bean
CacheFactoryBean gemfireCache(MappingPdxSerializer pdxSerializer) {
CacheFactoryBean gemfireCache = new CacheFactoryBean();
gemfireCache.setPdxSerializer(pdxSerializer);
gemfireCache.set...
return gemfireCache;
}
...
}
Hope this helps!
-j
We have a Spring application that connects with no problems to a MongoDB, with #Autowire and all the rest.
Now we also need the app to connect also to an SQL database.
So we crated an #entity class:
#Entity(name = "SqlCarRecord")
#Table(name = "Cars")
final public class SqlCarRecord {
#Id #GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
#Column(name = "name", nullable = false)
private String name;
....
And a #repository interface:
#Repository
public interface SqlCarsRepository extends JpaRepository<SqlCarRecord, Long> {
...
And a #Configuraion class like the example here https://www.petrikainulainen.net/programming/spring-framework/spring-data-jpa-tutorial-part-one-configuration/
And in the applicationContext we added
<jpa:repositories base-package="path.to.interface.package" />
In the pom.xml we already have
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.5.RELEASE</version>
</dependency>
and we added:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.0.0.M3</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.1.0</version>
</dependency>
<!-- DataSource (HikariCP) -->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.6.2</version>
</dependency>
<!-- JPA Provider (Hibernate) -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.2.10.Final</version>
</dependency>
<!-- Spring Data JPA -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.11.6.RELEASE</version>
</dependency>
<!-- adding this to avoid "java.lang.NoClassDefFoundError: org/w3c/dom/ElementTraversal" -->
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
<version>1.4.01</version>
</dependency>
<!-- adding this to avoid "ClassNotFoundException: org.springframework.data.util.CloseableIterator" -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-commons</artifactId>
<version>1.13.6.RELEASE</version>
</dependency>
And in the #Service class we added:
....
#Autowired
private SqlCarsRepository carsRepository;
The project is built successfully, but when we try to run it, we get this error:
Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'jpaMappingContext': Invocation of init method failed; nested
exception is java.lang.IllegalArgumentException: At least one JPA metamodel
must be present!
Some of the things We tried:
change the different versions of spring in the pom,
we tried to comment some of them,
we tried to change the interface to extend CrudRepository,
tried to add an empty constructor to the entity and some other things
with no luck.
Will appriciate help.
Thanks in advance.
I solved the same error message by changing the #SpringBootApplication annotation to this:
#SpringBootApplication(exclude = {JndiConnectionFactoryAutoConfiguration.class,DataSourceAutoConfiguration.class,
HibernateJpaAutoConfiguration.class,JpaRepositoriesAutoConfiguration.class,DataSourceTransactionManagerAutoConfiguration.class})
If you are using the #EnableAutoConfiguration directly, try this:
#EnableAutoConfiguration(exclude = {JndiConnectionFactoryAutoConfiguration.class,DataSourceAutoConfiguration.class,
HibernateJpaAutoConfiguration.class,JpaRepositoriesAutoConfiguration.class,DataSourceTransactionManagerAutoConfiguration.class})
It seems that the root problem is that the Spring Boot is trying to add something that is already on the classpath.
Most of answer taken from https://stackoverflow.com/a/30597861/7470360