org.apache.nifi.elasticsearch

Class ElasticSearchLookupService

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.serialization.SchemaRegistryService

org.apache.nifi.serialization.JsonInferenceSchemaRegistryService

org.apache.nifi.elasticsearch.ElasticSearchLookupService

All Implemented Interfaces:

ConfigurableComponent, ControllerService, LookupService<Record>

@CapabilityDescription(value="Lookup a record 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","record","elasticsearch"})
public class ElasticSearchLookupService
extends JsonInferenceSchemaRegistryService
implements LookupService<Record>

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyDescriptor	CLIENT_SERVICE
private ElasticSearchClientService	clientService
private List<PropertyDescriptor>	DESCRIPTORS
private String	index
static PropertyDescriptor	INDEX
private com.fasterxml.jackson.databind.ObjectMapper	mapper
private ConcurrentHashMap<String,RecordPath>	mappings
private String	type
static PropertyDescriptor	TYPE

Fields inherited from class org.apache.nifi.serialization.SchemaRegistryService

schemaAccessStrategy

Constructor Summary

Constructors

Constructor and Description
ElasticSearchLookupService()

Method Summary

Modifier and Type	Method and Description
private Record	applyMappings(Record record, Map<String,Object> source)
private Map<String,Object>	buildQuery(Map<String,Object> coordinates)
private Record	getById(String _id, Map<String,String> context)
private Record	getByQuery(Map<String,Object> query, Map<String,String> context)
(package private) Map<String,Object>	getNested(String key, Object value)
Set<String>	getRequiredKeys()
PropertyDescriptor	getSupportedDynamicPropertyDescriptor(String name)
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
Class<?>	getValueType()
Optional<Record>	lookup(Map<String,Object> coordinates)
Optional<Record>	lookup(Map<String,Object> coordinates, Map<String,String> context)
void	onEnabled(ConfigurationContext context)
private void	validateCoordinates(Map coordinates)

Methods inherited from class org.apache.nifi.serialization.JsonInferenceSchemaRegistryService

getDefaultSchemaAccessStrategy, getSchema, getSchemaAccessStrategy

Methods inherited from class org.apache.nifi.serialization.SchemaRegistryService

buildStrategyProperty, customValidate, getConfigurationContext, getSchema, getSchema, getSchemaAccessStrategy, getSchemaAccessStrategyValues, getSchemaAcessStrategyDescriptor, getSuppliedSchemaFields, storeSchemaAccessStrategy

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

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

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

equals, getPropertyDescriptor, getPropertyDescriptors, 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.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

clientService

private ElasticSearchClientService clientService

index

private String index

type

private String type

mapper

private com.fasterxml.jackson.databind.ObjectMapper mapper

DESCRIPTORS

private final List<PropertyDescriptor> DESCRIPTORS

mappings

private volatile ConcurrentHashMap<String,RecordPath> mappings

Constructor Detail

ElasticSearchLookupService

public ElasticSearchLookupService()

Method Detail

onEnabled

@OnEnabled
public void onEnabled(ConfigurationContext context)

Overrides:

onEnabled in class JsonInferenceSchemaRegistryService

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class JsonInferenceSchemaRegistryService

getSupportedDynamicPropertyDescriptor

public PropertyDescriptor getSupportedDynamicPropertyDescriptor(String name)

Overrides:

getSupportedDynamicPropertyDescriptor in class AbstractConfigurableComponent

lookup

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

Specified by:

lookup in interface LookupService<Record>

Throws:

LookupFailureException

lookup

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

Specified by:

lookup in interface LookupService<Record>

Throws:

LookupFailureException

validateCoordinates

private void validateCoordinates(Map coordinates)
                          throws LookupFailureException

Throws:

LookupFailureException

getById

private Record getById(String _id,
                       Map<String,String> context)
                throws IOException,
                       LookupFailureException,
                       SchemaNotFoundException

Throws:

IOException

LookupFailureException

SchemaNotFoundException

getNested

Map<String,Object> getNested(String key,
                             Object value)

buildQuery

private Map<String,Object> buildQuery(Map<String,Object> coordinates)

getByQuery

private Record getByQuery(Map<String,Object> query,
                          Map<String,String> context)
                   throws LookupFailureException

Throws:

LookupFailureException

applyMappings

private Record applyMappings(Record record,
                             Map<String,Object> source)

getValueType

public Class<?> getValueType()

Specified by:

getValueType in interface LookupService<Record>

getRequiredKeys

public Set<String> getRequiredKeys()

Specified by:

getRequiredKeys in interface LookupService<Record>