org.apache.nifi.elasticsearch

Class ElasticSearchStringLookupService

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.elasticsearch.ElasticSearchStringLookupService

All Implemented Interfaces:

ConfigurableComponent, ControllerService, LookupService<String>, StringLookupService

@CapabilityDescription(value="Lookup a string value from Elasticsearch Server associated with the specified document ID. The coordinates that are passed to the lookup must contain the key \'id\'.")
 @Tags(value={"lookup","enrich","value","key","elasticsearch"})
public class ElasticSearchStringLookupService
extends AbstractControllerService
implements StringLookupService

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyDescriptor	CLIENT_SERVICE
private static List<PropertyDescriptor>	DESCRIPTORS
private ElasticSearchClientService	esClient
static String	ID
private String	index
static PropertyDescriptor	INDEX
private static com.fasterxml.jackson.databind.ObjectMapper	mapper
private String	type
static PropertyDescriptor	TYPE

Constructor Summary

Constructors

Constructor and Description
ElasticSearchStringLookupService()

Method Summary

Modifier and Type	Method and Description
Set<String>	getRequiredKeys()
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
Optional<String>	lookup(Map<String,Object> coordinates)
void	onEnabled(ConfigurationContext context)

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

customValidate, 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.lookup.StringLookupService

getValueType

Methods inherited from interface org.apache.nifi.lookup.LookupService

lookup

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

initialize

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

getIdentifier, getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

CLIENT_SERVICE

public static final PropertyDescriptor CLIENT_SERVICE

INDEX

public static final PropertyDescriptor INDEX

TYPE

public static final PropertyDescriptor TYPE

DESCRIPTORS

private static final List<PropertyDescriptor> DESCRIPTORS

mapper

private static final com.fasterxml.jackson.databind.ObjectMapper mapper

ID

public static final String ID

See Also:

Constant Field Values

esClient

private ElasticSearchClientService esClient

index

private String index

type

private String type

Constructor Detail

ElasticSearchStringLookupService

public ElasticSearchStringLookupService()

Method Detail

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

onEnabled

@OnEnabled
public void onEnabled(ConfigurationContext context)

lookup

public Optional<String> lookup(Map<String,Object> coordinates)
                        throws LookupFailureException

Specified by:

lookup in interface LookupService<String>

Throws:

LookupFailureException

getRequiredKeys

public Set<String> getRequiredKeys()

Specified by:

getRequiredKeys in interface LookupService<String>