org.apache.nifi.schemaregistry.services

Class AvroSchemaRegistry

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.schemaregistry.services.AvroSchemaRegistry

All Implemented Interfaces:

ConfigurableComponent, ControllerService, SchemaRegistry

@Tags(value={"schema","registry","avro","json","csv"})
 @CapabilityDescription(value="Provides a service for registering and accessing schemas. You 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 Avro\'s Schema format.")
public class AvroSchemaRegistry
extends AbstractControllerService
implements SchemaRegistry

Field Summary

Fields

Modifier and Type	Field and Description
private List<PropertyDescriptor>	propertyDescriptors
private ConcurrentMap<String,RecordSchema>	recordSchemas
private static Set<SchemaField>	schemaFields
(package private) static PropertyDescriptor	VALIDATE_FIELD_NAMES

Constructor Summary

Constructors

Constructor and Description
AvroSchemaRegistry()

Method Summary

Modifier and Type	Method and Description
protected Collection<ValidationResult>	customValidate(ValidationContext validationContext)
Set<SchemaField>	getSuppliedSchemaFields()
protected PropertyDescriptor	getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
protected void	init(ControllerServiceInitializationContext config)
void	onPropertyModified(PropertyDescriptor descriptor, String oldValue, String newValue)
RecordSchema	retrieveSchema(SchemaIdentifier schemaIdentifier)
private RecordSchema	retrieveSchemaByName(String schemaName)

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

abstractClearConfigContext, abstractStoreConfigContext, disabled, enabled, getConfigurationContext, getControllerServiceLookup, getIdentifier, getLogger, getNodeTypeProvider, getProperty, getStateManager, 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.schemaregistry.services.SchemaRegistry

retrieveSchema, retrieveSchema, retrieveSchemaText, retrieveSchemaText

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

schemaFields

private static final Set<SchemaField> schemaFields

recordSchemas

private final ConcurrentMap<String,RecordSchema> recordSchemas

VALIDATE_FIELD_NAMES

static final PropertyDescriptor VALIDATE_FIELD_NAMES

propertyDescriptors

private List<PropertyDescriptor> propertyDescriptors

Constructor Detail

AvroSchemaRegistry

public AvroSchemaRegistry()

Method Detail

init

protected void init(ControllerServiceInitializationContext config)
             throws InitializationException

Overrides:

init in class AbstractControllerService

Throws:

InitializationException

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

retrieveSchemaByName

private RecordSchema retrieveSchemaByName(String schemaName)
                                   throws SchemaNotFoundException

Throws:

SchemaNotFoundException

retrieveSchema

public RecordSchema retrieveSchema(SchemaIdentifier schemaIdentifier)
                            throws IOException,
                                   SchemaNotFoundException

Specified by:

retrieveSchema in interface SchemaRegistry

Throws:

IOException

SchemaNotFoundException

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getSupportedDynamicPropertyDescriptor

protected PropertyDescriptor getSupportedDynamicPropertyDescriptor(String propertyDescriptorName)

Overrides:

getSupportedDynamicPropertyDescriptor in class AbstractConfigurableComponent

getSuppliedSchemaFields

public Set<SchemaField> getSuppliedSchemaFields()

Specified by:

getSuppliedSchemaFields in interface SchemaRegistry