org.apache.nifi.processors.elasticsearch

Class AbstractElasticsearchTransportClientProcessor

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.AbstractElasticsearchTransportClientProcessor

All Implemented Interfaces:

ConfigurableComponent, Processor

Direct Known Subclasses:

FetchElasticsearch, PutElasticsearch

public abstract class AbstractElasticsearchTransportClientProcessor
extends AbstractElasticsearchProcessor

Field Summary

Fields

Modifier and Type	Field and Description
protected String	authToken
protected static PropertyDescriptor	CLUSTER_NAME
protected AtomicReference<org.elasticsearch.client.Client>	esClient
protected List<InetSocketAddress>	esHosts
private static Validator	HOSTNAME_PORT_VALIDATOR This validator ensures the Elasticsearch hosts property is a valid list of hostname:port entries
protected static PropertyDescriptor	HOSTS
protected static PropertyDescriptor	PING_TIMEOUT
static PropertyDescriptor	PROP_SHIELD_LOCATION
protected static PropertyDescriptor	SAMPLER_INTERVAL

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

CHARSET, PASSWORD, PROP_SSL_CONTEXT_SERVICE, USERNAME

Constructor Summary

Constructors

Constructor and Description
AbstractElasticsearchTransportClientProcessor()

Method Summary

Modifier and Type	Method and Description
void	closeClient() Dispose of ElasticSearch client
protected void	createElasticsearchClient(ProcessContext context) Instantiate ElasticSearch Client.
private List<InetSocketAddress>	getEsHosts(String hosts) Get the ElasticSearch hosts from a NiFi attribute, e.g.
protected org.elasticsearch.client.transport.TransportClient	getTransportClient(org.elasticsearch.common.settings.Settings.Builder settingsBuilder, String shieldUrl, String username, String password)

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

customValidate, setup

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

onTrigger, onTrigger

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

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

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

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.components.ConfigurableComponent

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

HOSTNAME_PORT_VALIDATOR

private static final Validator HOSTNAME_PORT_VALIDATOR

This validator ensures the Elasticsearch hosts property is a valid list of hostname:port entries

CLUSTER_NAME

protected static final PropertyDescriptor CLUSTER_NAME

HOSTS

protected static final PropertyDescriptor HOSTS

PROP_SHIELD_LOCATION

public static final PropertyDescriptor PROP_SHIELD_LOCATION

PING_TIMEOUT

protected static final PropertyDescriptor PING_TIMEOUT

SAMPLER_INTERVAL

protected static final PropertyDescriptor SAMPLER_INTERVAL

esClient

protected AtomicReference<org.elasticsearch.client.Client> esClient

esHosts

protected List<InetSocketAddress> esHosts

authToken

protected String authToken

Constructor Detail

AbstractElasticsearchTransportClientProcessor

public AbstractElasticsearchTransportClientProcessor()

Method Detail

createElasticsearchClient

protected void createElasticsearchClient(ProcessContext context)
                                  throws ProcessException

Instantiate ElasticSearch Client. This should be called by subclasses' @OnScheduled method to create a client if one does not yet exist. If called when scheduled, closeClient() should be called by the subclasses' @OnStopped method so the client will be destroyed when the processor is stopped.

Specified by:

createElasticsearchClient in class AbstractElasticsearchProcessor

Parameters:

context - The context for this processor

Throws:

ProcessException - if an error occurs while creating an Elasticsearch client

getTransportClient

protected org.elasticsearch.client.transport.TransportClient getTransportClient(org.elasticsearch.common.settings.Settings.Builder settingsBuilder,
                                                                                String shieldUrl,
                                                                                String username,
                                                                                String password)
                                                                         throws MalformedURLException

Throws:

MalformedURLException

closeClient

public void closeClient()

Dispose of ElasticSearch client

getEsHosts

private List<InetSocketAddress> getEsHosts(String hosts)

Get the ElasticSearch hosts from a NiFi attribute, e.g.

Parameters:

hosts - A comma-separated list of ElasticSearch hosts (host:port,host2:port2, etc.)

Returns:

List of InetSocketAddresses for the ES hosts