org.apache.nifi.processors.elasticsearch

Class FetchElasticsearchHttp

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

org.apache.nifi.processor.AbstractProcessor

org.apache.nifi.processors.elasticsearch.AbstractElasticsearchProcessor

org.apache.nifi.processors.elasticsearch.AbstractElasticsearchHttpProcessor

org.apache.nifi.processors.elasticsearch.FetchElasticsearchHttp

All Implemented Interfaces:

ConfigurableComponent, Processor

@InputRequirement(value=INPUT_ALLOWED)
 @EventDriven
 @SupportsBatching
 @Tags(value={"elasticsearch","fetch","read","get","http"})
 @CapabilityDescription(value="Retrieves a document from Elasticsearch using the specified connection properties and the identifier of the document to retrieve. Note that the full body of the document will be read into memory before being written to a Flow File for transfer.")
 @WritesAttribute(attribute="filename",description="The filename attribute is set to the document identifier") @WritesAttribute(attribute="es.index",description="The Elasticsearch index containing the document") @WritesAttribute(attribute="es.type",description="The Elasticsearch document type")
 @DynamicProperty(name="A URL query parameter",
                 value="The value to set it to",
                 expressionLanguageScope=VARIABLE_REGISTRY,
                 description="Adds the specified property name/value as a query parameter in the Elasticsearch URL used for processing")
public class FetchElasticsearchHttp
extends AbstractElasticsearchHttpProcessor

Field Summary

Fields

Modifier and Type	Field and Description
static PropertyDescriptor	DOC_ID
static PropertyDescriptor	FIELDS
static PropertyDescriptor	INDEX
private static List<PropertyDescriptor>	propertyDescriptors
static Relationship	REL_FAILURE
static Relationship	REL_NOT_FOUND
static Relationship	REL_RETRY
static Relationship	REL_SUCCESS
private static Set<Relationship>	relationships
static PropertyDescriptor	TYPE

Fields inherited from class org.apache.nifi.processors.elasticsearch.AbstractElasticsearchHttpProcessor

COMMON_PROPERTY_DESCRIPTORS, CONNECT_TIMEOUT, ES_URL, FIELD_INCLUDE_QUERY_PARAM, PROXY_CONFIGURATION_SERVICE, PROXY_HOST, PROXY_PASSWORD, PROXY_PORT, PROXY_USERNAME, QUERY_QUERY_PARAM, RESPONSE_TIMEOUT, SIZE_QUERY_PARAM, SORT_QUERY_PARAM

Fields inherited from class org.apache.nifi.processors.elasticsearch.AbstractElasticsearchProcessor

CHARSET, PASSWORD, PROP_SSL_CONTEXT_SERVICE, USERNAME

Constructor Summary

Constructors

Constructor and Description
FetchElasticsearchHttp()

Method Summary

Modifier and Type	Method and Description
private URL	buildRequestURL(String baseUrl, String docId, String index, String type, String fields, ProcessContext context)
Set<Relationship>	getRelationships()
List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	onTrigger(ProcessContext context, ProcessSession session)
void	setup(ProcessContext context)

Methods inherited from class org.apache.nifi.processors.elasticsearch.AbstractElasticsearchHttpProcessor

buildBulkCommand, createElasticsearchClient, customValidate, getClient, getSupportedDynamicPropertyDescriptor, isSuccess, parseJsonResponse, sendRequestToElasticsearch

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

equals, getPropertyDescriptor, getPropertyDescriptors, 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.components.ConfigurableComponent

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

REL_SUCCESS

public static final Relationship REL_SUCCESS

REL_FAILURE

public static final Relationship REL_FAILURE

REL_RETRY

public static final Relationship REL_RETRY

REL_NOT_FOUND

public static final Relationship REL_NOT_FOUND

DOC_ID

public static final PropertyDescriptor DOC_ID

INDEX

public static final PropertyDescriptor INDEX

TYPE

public static final PropertyDescriptor TYPE

FIELDS

public static final PropertyDescriptor FIELDS

relationships

private static final Set<Relationship> relationships

propertyDescriptors

private static final List<PropertyDescriptor> propertyDescriptors

Constructor Detail

FetchElasticsearchHttp

public FetchElasticsearchHttp()

Method Detail

getRelationships

public Set<Relationship> getRelationships()

Specified by:

getRelationships in interface Processor

Overrides:

getRelationships in class AbstractSessionFactoryProcessor

getSupportedPropertyDescriptors

public final List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

setup

@OnScheduled
public void setup(ProcessContext context)

Overrides:

setup in class AbstractElasticsearchProcessor

onTrigger

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

Specified by:

onTrigger in class AbstractProcessor

Throws:

ProcessException

buildRequestURL

private URL buildRequestURL(String baseUrl,
                            String docId,
                            String index,
                            String type,
                            String fields,
                            ProcessContext context)
                     throws MalformedURLException

Throws:

MalformedURLException