org.apache.nifi.processor

Class AbstractSessionFactoryProcessor

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

All Implemented Interfaces:

ConfigurableComponent, Processor

Direct Known Subclasses:

AbstractProcessor

public abstract class AbstractSessionFactoryProcessor
extends AbstractConfigurableComponent
implements Processor

Provides a standard partial implementation of a Processor. This implementation provides default behavior and various convenience hooks for processing.

Implementation/Design note: This class follows the open/closed principle in a fairly strict manner meaning that subclasses are free to customize behavior in specifically designed points exclusively. If greater flexibility is necessary then it is still possible to simply implement the Processor interface.

Thread safe

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	configurationRestored
private String	description
private String	identifier
private ComponentLog	logger
private NodeTypeProvider	nodeTypeProvider
private boolean	scheduled
private ControllerServiceLookup	serviceLookup

Constructor Summary

Constructors

Constructor and Description
AbstractSessionFactoryProcessor()

Method Summary

Modifier and Type	Method and Description
protected ControllerServiceLookup	getControllerServiceLookup()
String	getIdentifier()
protected ComponentLog	getLogger()
protected NodeTypeProvider	getNodeTypeProvider()
Set<Relationship>	getRelationships()
protected void	init(ProcessorInitializationContext context) Provides subclasses the ability to perform initialization logic
void	initialize(ProcessorInitializationContext context) Provides the processor with access to objects that may be of use throughout the life of the Processor
protected boolean	isConfigurationRestored() Returns a boolean indicating whether or not the configuration of the Processor has already been restored.
protected boolean	isScheduled()
String	toString()
void	updateConfiguredRestoredTrue()
void	updateScheduledFalse()
void	updateScheduledTrue()

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

customValidate, equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, getSupportedPropertyDescriptors, hashCode, onPropertyModified, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.nifi.processor.Processor

isStateful, onTrigger

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

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

identifier

private String identifier

logger

private ComponentLog logger

scheduled

private volatile boolean scheduled

configurationRestored

private volatile boolean configurationRestored

serviceLookup

private ControllerServiceLookup serviceLookup

nodeTypeProvider

private NodeTypeProvider nodeTypeProvider

description

private String description

Constructor Detail

AbstractSessionFactoryProcessor

public AbstractSessionFactoryProcessor()

Method Detail

initialize

public final void initialize(ProcessorInitializationContext context)

Description copied from interface: Processor

Provides the processor with access to objects that may be of use throughout the life of the Processor

Specified by:

initialize in interface Processor

Parameters:

context - of initialization

getControllerServiceLookup

protected final ControllerServiceLookup getControllerServiceLookup()

Returns:

the ControllerServiceLookup that was passed to the init(ProcessorInitializationContext) method

getNodeTypeProvider

protected final NodeTypeProvider getNodeTypeProvider()

Returns:

the NodeTypeProvider that was passed to the init(ProcessorInitializationContext) method

getRelationships

public Set<Relationship> getRelationships()

Specified by:

getRelationships in interface Processor

Returns:

Set of all relationships this processor expects to transfer a flow file to. An empty set indicates this processor does not have any destination relationships. Guaranteed non null.

getLogger

protected final ComponentLog getLogger()

init

protected void init(ProcessorInitializationContext context)

Provides subclasses the ability to perform initialization logic

Parameters:

context - in which to perform initialization

isScheduled

protected final boolean isScheduled()

Returns:

true if the processor is scheduled to run, false otherwise

updateScheduledTrue

@OnScheduled
public final void updateScheduledTrue()

updateScheduledFalse

@OnUnscheduled
public final void updateScheduledFalse()

updateConfiguredRestoredTrue

@OnConfigurationRestored
public final void updateConfiguredRestoredTrue()

isConfigurationRestored

protected boolean isConfigurationRestored()

Returns a boolean indicating whether or not the configuration of the Processor has already been restored. See the OnConfigurationRestored annotation for more information about what it means for the configuration to be restored.

Returns:

true if configuration has been restored, false otherwise.

getIdentifier

public final String getIdentifier()

Specified by:

getIdentifier in interface ConfigurableComponent

Returns:

the unique identifier that the framework assigned to this component

toString

public String toString()

Overrides:

toString in class AbstractConfigurableComponent