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To better understand these functionality, it has been created a Demo Application. That it is available here (https://gerrit.nordix.org/c/local/onap/clamp-pilot/+/11966).
The Java code shown below, is the model used by Rest Api Controller. (Validations and Swagger annotations have been removed for simplicity)
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The Json shown below is an example using of the model shown before.
| Code Block | ||||||
|---|---|---|---|---|---|---|
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{
"key": "1",
"text": "This is an example",
"properties": {
"additionalProp1": "Val 10",
"additionalProp2": "11",
"additionalProp3": "12"
},
"document": {
"name": "DocumentExample",
"elements": {
"additionalProp1": {
"name": "ElementExample 1",
"tags": [
"tag1"
]
},
"additionalProp2": {
"name": "ElementExample 2",
"tags": [
"tag2"
]
},
"additionalProp3": {
"name": "ElementExample 3",
"tags": [
"tag3"
]
}
}
}
} |
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| Code Block | ||||||
|---|---|---|---|---|---|---|
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@Repository
public interface ItemRepository extends JpaRepository<Item, String> {
@Query(value = " SELECT * FROM item where document['name'] @> :value ", nativeQuery = true)
Stream<Item> findByName(@Param("value") String value);
@Modifying
@Query(value = " UPDATE item SET document['name']=:value where key=:key ", nativeQuery = true)
void updateNameByKey(@Param("key") String key, @Param("value") String value);
@Query(
value = " SELECT Cast(jsonb_path_query_array(document['elements'], '$[*].keyvalue().value.tags') as varchar) FROM item ",
nativeQuery = true)
Stream<String> findTags();
}
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In order to make unit testtests, we can not use H2 due of the incompatibility. Spring supports Testcontainers where we can configure a PostgreSQL Container that will up and running during tests.
| Code Block | ||||||
|---|---|---|---|---|---|---|
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@Testcontainers
@ExtendWith(SpringExtension.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
@ContextConfiguration(
initializers = DemoApplicationTests.Initializer.class,
classes = DemoApplication.class)
@TestPropertySource(locations = {"classpath:application_test.properties"})
class DemoApplicationTests {
@Test
void contextLoads() {
}
@Container
public static PostgreSQLContainer postgreSQLContainer = new PostgreSQLContainer("postgres:latest")
.withDatabaseName("db_demo").withUsername("sa").withPassword("sa");
@Configuration
static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
@Override
public void initialize(ConfigurableApplicationContext configurableApplicationContext) {
TestPropertyValues
.of("spring.datasource.url=" + postgreSQLContainer.getJdbcUrl(),
"spring.datasource.username=" + postgreSQLContainer.getUsername(),
"spring.datasource.password=" + postgreSQLContainer.getPassword())
.applyTo(configurableApplicationContext.getEnvironment());
}
}
}
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Use case scenarios
- The principal model used by Business logic is the Json model
- Collection of values: Map of String as example
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