org.apache.nifi.processors.standard

Class Notify

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

org.apache.nifi.processor.AbstractProcessor

org.apache.nifi.processors.standard.Notify

All Implemented Interfaces:

ConfigurableComponent, Processor

@EventDriven
 @SupportsBatching
 @Tags(value={"map","cache","notify","distributed","signal","release"})
 @InputRequirement(value=INPUT_REQUIRED)
 @CapabilityDescription(value="Caches a release signal identifier in the distributed cache, optionally along with the FlowFile\'s attributes.  Any flow files held at a corresponding Wait processor will be released once this signal in the cache is discovered.")
 @WritesAttribute(attribute="notified",
                 description="All FlowFiles will have an attribute \'notified\'. The value of this attribute is true, is the FlowFile is notified, otherwise false.")
 @SeeAlso(classNames={"org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService","org.apache.nifi.distributed.cache.server.map.DistributedMapCacheServer","org.apache.nifi.processors.standard.Wait"})
public class Notify
extends AbstractProcessor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	Notify.SignalBuffer

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyDescriptor	ATTRIBUTE_CACHE_REGEX
static PropertyDescriptor	DISTRIBUTED_CACHE_SERVICE
static String	NOTIFIED_ATTRIBUTE_NAME
static Relationship	REL_FAILURE
static Relationship	REL_SUCCESS
private Set<Relationship>	relationships
static PropertyDescriptor	RELEASE_SIGNAL_IDENTIFIER
static PropertyDescriptor	SIGNAL_BUFFER_COUNT
static PropertyDescriptor	SIGNAL_COUNTER_DELTA
static PropertyDescriptor	SIGNAL_COUNTER_NAME

Constructor Summary

Constructors

Constructor and Description
Notify()

Method Summary

Modifier and Type	Method and Description
Set<Relationship>	getRelationships()
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	onTrigger(ProcessContext context, ProcessSession session)

Methods inherited from class org.apache.nifi.processor.AbstractProcessor

onTrigger

Methods inherited from class org.apache.nifi.processor.AbstractSessionFactoryProcessor

getControllerServiceLookup, getIdentifier, getLogger, getNodeTypeProvider, init, initialize, isConfigurationRestored, isScheduled, toString, updateConfiguredRestoredTrue, updateScheduledFalse, updateScheduledTrue

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

customValidate, equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, 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

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

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

NOTIFIED_ATTRIBUTE_NAME

public static final String NOTIFIED_ATTRIBUTE_NAME

See Also:

Constant Field Values

DISTRIBUTED_CACHE_SERVICE

public static final PropertyDescriptor DISTRIBUTED_CACHE_SERVICE

RELEASE_SIGNAL_IDENTIFIER

public static final PropertyDescriptor RELEASE_SIGNAL_IDENTIFIER

SIGNAL_COUNTER_NAME

public static final PropertyDescriptor SIGNAL_COUNTER_NAME

SIGNAL_COUNTER_DELTA

public static final PropertyDescriptor SIGNAL_COUNTER_DELTA

SIGNAL_BUFFER_COUNT

public static final PropertyDescriptor SIGNAL_BUFFER_COUNT

ATTRIBUTE_CACHE_REGEX

public static final PropertyDescriptor ATTRIBUTE_CACHE_REGEX

REL_SUCCESS

public static final Relationship REL_SUCCESS

REL_FAILURE

public static final Relationship REL_FAILURE

relationships

private final Set<Relationship> relationships

Constructor Detail

Notify

public Notify()

Method Detail

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

getRelationships

public Set<Relationship> getRelationships()

Specified by:

getRelationships in interface Processor

Overrides:

getRelationships in class AbstractSessionFactoryProcessor

onTrigger

public void onTrigger(ProcessContext context,
                      ProcessSession session)
               throws ProcessException

Specified by:

onTrigger in class AbstractProcessor

Throws:

ProcessException