org.apache.nifi.serialization

Class SchemaRegistryService

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.serialization.SchemaRegistryService

All Implemented Interfaces:

ConfigurableComponent, ControllerService

Direct Known Subclasses:

AvroReader, CSVReader, GrokReader, JsonPathReader, JsonTreeReader, SchemaRegistryRecordSetWriter

public abstract class SchemaRegistryService
extends AbstractControllerService

Field Summary

Fields

Modifier and Type	Field and Description
private ConfigurationContext	configurationContext
private static InputStream	EMPTY_INPUT_STREAM
private SchemaAccessStrategy	schemaAccessStrategy
private List<AllowableValue>	strategyList

Constructor Summary

Constructors

Constructor and Description
SchemaRegistryService()

Method Summary

Modifier and Type	Method and Description
protected Collection<ValidationResult>	customValidate(ValidationContext validationContext)
protected ConfigurationContext	getConfigurationContext()
protected AllowableValue	getDefaultSchemaAccessStrategy()
RecordSchema	getSchema(Map<String,String> variables, InputStream contentStream, RecordSchema readSchema)
RecordSchema	getSchema(Map<String,String> variables, RecordSchema readSchema)
protected SchemaAccessStrategy	getSchemaAccessStrategy()
protected SchemaAccessStrategy	getSchemaAccessStrategy(String strategy, SchemaRegistry schemaRegistry, ConfigurationContext context)
protected SchemaAccessStrategy	getSchemaAccessStrategy(String allowableValue, SchemaRegistry schemaRegistry, ValidationContext context)
protected List<AllowableValue>	getSchemaAccessStrategyValues()
protected PropertyDescriptor	getSchemaAcessStrategyDescriptor()
protected Set<SchemaField>	getSuppliedSchemaFields(ValidationContext validationContext)
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	storeSchemaAccessStrategy(ConfigurationContext context)

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

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

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

equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, hashCode, onPropertyModified, toString, validate

Methods inherited from class java.lang.Object

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

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

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

configurationContext

private volatile ConfigurationContext configurationContext

schemaAccessStrategy

private volatile SchemaAccessStrategy schemaAccessStrategy

EMPTY_INPUT_STREAM

private static InputStream EMPTY_INPUT_STREAM

strategyList

private final List<AllowableValue> strategyList

Constructor Detail

SchemaRegistryService

public SchemaRegistryService()

Method Detail

getSchemaAcessStrategyDescriptor

protected PropertyDescriptor getSchemaAcessStrategyDescriptor()

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getDefaultSchemaAccessStrategy

protected AllowableValue getDefaultSchemaAccessStrategy()

storeSchemaAccessStrategy

@OnEnabled
public void storeSchemaAccessStrategy(ConfigurationContext context)

getConfigurationContext

protected ConfigurationContext getConfigurationContext()

Overrides:

getConfigurationContext in class AbstractControllerService

getSchemaAccessStrategy

protected SchemaAccessStrategy getSchemaAccessStrategy()

getSchema

public final RecordSchema getSchema(Map<String,String> variables,
                                    InputStream contentStream,
                                    RecordSchema readSchema)
                             throws SchemaNotFoundException,
                                    IOException

Throws:

SchemaNotFoundException

IOException

getSchema

public RecordSchema getSchema(Map<String,String> variables,
                              RecordSchema readSchema)
                       throws SchemaNotFoundException,
                              IOException

Throws:

SchemaNotFoundException

IOException

customValidate

protected Collection<ValidationResult> customValidate(ValidationContext validationContext)

Overrides:

customValidate in class AbstractConfigurableComponent

getSchemaAccessStrategyValues

protected List<AllowableValue> getSchemaAccessStrategyValues()

getSuppliedSchemaFields

protected Set<SchemaField> getSuppliedSchemaFields(ValidationContext validationContext)

getSchemaAccessStrategy

protected SchemaAccessStrategy getSchemaAccessStrategy(String strategy,
                                                       SchemaRegistry schemaRegistry,
                                                       ConfigurationContext context)

getSchemaAccessStrategy

protected SchemaAccessStrategy getSchemaAccessStrategy(String allowableValue,
                                                       SchemaRegistry schemaRegistry,
                                                       ValidationContext context)