org.apache.nifi.schemaregistry.services

Class StandardJsonSchemaRegistry

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.schemaregistry.services.StandardJsonSchemaRegistry

All Implemented Interfaces:

ConfigurableComponent, ControllerService, JsonSchemaRegistryComponent, JsonSchemaRegistry

@Tags(value={"schema","registry","json"})
 @CapabilityDescription(value="Provides a service for registering and accessing JSON schemas. One can register a schema as a dynamic property where \'name\' represents the schema name and \'value\' represents the textual representation of the actual schema following the syntax and semantics of the JSON Schema format. Empty schemas and schemas only consisting of whitespace are not acceptable schemas.The registry is heterogeneous registry as it can store schemas of different schema draft versions. By default the registry is configured to store schemas of Draft 2020-12. When a schema is added, the version which is currently is set, is what the schema is saved as.")
 @DynamicProperty(name="Schema Name",
                 value="Schema Content",
                 description="Adds a named schema using the JSON string representation of a JSON schema",
                 expressionLanguageScope=NONE)
public class StandardJsonSchemaRegistry
extends AbstractControllerService
implements JsonSchemaRegistry, JsonSchemaRegistryComponent

Field Summary

Fields

Modifier and Type	Field and Description
private ConcurrentMap<String,org.apache.nifi.json.schema.JsonSchema>	jsonSchemas
private static List<PropertyDescriptor>	PROPERTY_DESCRIPTORS
private ConcurrentMap<org.apache.nifi.json.schema.SchemaVersion,com.networknt.schema.JsonSchemaFactory>	schemaFactories
private org.apache.nifi.json.schema.SchemaVersion	schemaVersion

Fields inherited from interface org.apache.nifi.schema.access.JsonSchemaRegistryComponent

SCHEMA_VERSION

Constructor Summary

Constructors

Constructor and Description
StandardJsonSchemaRegistry()

Method Summary

Modifier and Type	Method and Description
protected Collection<ValidationResult>	customValidate(ValidationContext validationContext)
protected PropertyDescriptor	getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	onPropertyModified(PropertyDescriptor descriptor, String oldValue, String newValue)
org.apache.nifi.json.schema.JsonSchema	retrieveSchema(String schemaName)

Methods inherited from class org.apache.nifi.controller.AbstractControllerService

abstractClearConfigContext, abstractStoreConfigContext, disabled, enabled, getConfigurationContext, getControllerServiceLookup, getIdentifier, getLogger, getNodeTypeProvider, getProperty, getStateManager, init, initialize, isEnabled

Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

equals, getPropertyDescriptor, getPropertyDescriptors, hashCode, toString, validate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.nifi.controller.ControllerService

initialize, isStateful

Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

getIdentifier, getPropertyDescriptor, getPropertyDescriptors, validate

Field Detail

PROPERTY_DESCRIPTORS

private static final List<PropertyDescriptor> PROPERTY_DESCRIPTORS

jsonSchemas

private final ConcurrentMap<String,org.apache.nifi.json.schema.JsonSchema> jsonSchemas

schemaFactories

private final ConcurrentMap<org.apache.nifi.json.schema.SchemaVersion,com.networknt.schema.JsonSchemaFactory> schemaFactories

schemaVersion

private volatile org.apache.nifi.json.schema.SchemaVersion schemaVersion

Constructor Detail

StandardJsonSchemaRegistry

public StandardJsonSchemaRegistry()

Method Detail

onPropertyModified

public void onPropertyModified(PropertyDescriptor descriptor,
                               String oldValue,
                               String newValue)

Specified by:

onPropertyModified in interface ConfigurableComponent

Overrides:

onPropertyModified in class AbstractConfigurableComponent

customValidate

protected Collection<ValidationResult> customValidate(ValidationContext validationContext)

Overrides:

customValidate in class AbstractConfigurableComponent

retrieveSchema

public org.apache.nifi.json.schema.JsonSchema retrieveSchema(String schemaName)
                                                      throws SchemaNotFoundException

Specified by:

retrieveSchema in interface JsonSchemaRegistry

Throws:

SchemaNotFoundException

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getSupportedDynamicPropertyDescriptor

protected PropertyDescriptor getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)

Overrides:

getSupportedDynamicPropertyDescriptor in class AbstractConfigurableComponent