org.elasticsearch.client.sniff

Class ElasticsearchHostsSniffer

java.lang.Object

org.elasticsearch.client.sniff.ElasticsearchHostsSniffer

All Implemented Interfaces:

HostsSniffer

public final class ElasticsearchHostsSniffer
extends java.lang.Object
implements HostsSniffer

Class responsible for sniffing the http hosts from elasticsearch through the nodes info api and returning them back. Compatible with elasticsearch 5.x and 2.x.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ElasticsearchHostsSniffer.Scheme

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEFAULT_SNIFF_REQUEST_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
ElasticsearchHostsSniffer(RestClient restClient) Creates a new instance of the Elasticsearch sniffer.
ElasticsearchHostsSniffer(RestClient restClient, long sniffRequestTimeoutMillis, ElasticsearchHostsSniffer.Scheme scheme) Creates a new instance of the Elasticsearch sniffer.

Method Summary

Modifier and Type	Method and Description
java.util.List<org.apache.http.HttpHost>	sniffHosts() Calls the elasticsearch nodes info api, parses the response and returns all the found http hosts

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_SNIFF_REQUEST_TIMEOUT

public static final long DEFAULT_SNIFF_REQUEST_TIMEOUT

Constructor Detail

ElasticsearchHostsSniffer

public ElasticsearchHostsSniffer(RestClient restClient)

Creates a new instance of the Elasticsearch sniffer. It will use the provided RestClient to fetch the hosts, through the nodes info api, the default sniff request timeout value DEFAULT_SNIFF_REQUEST_TIMEOUT and http as the scheme for all the hosts.

Parameters:

restClient - client used to fetch the hosts from elasticsearch through nodes info api. Usually the same instance that is also provided to Sniffer.builder(RestClient), so that the hosts are set to the same client that was used to fetch them.

ElasticsearchHostsSniffer

public ElasticsearchHostsSniffer(RestClient restClient,
                                 long sniffRequestTimeoutMillis,
                                 ElasticsearchHostsSniffer.Scheme scheme)

Creates a new instance of the Elasticsearch sniffer. It will use the provided RestClient to fetch the hosts through the nodes info api, the provided sniff request timeout value and scheme.

Parameters:

restClient - client used to fetch the hosts from elasticsearch through nodes info api. Usually the same instance that is also provided to Sniffer.builder(RestClient), so that the hosts are set to the same client that was used to sniff them.

sniffRequestTimeoutMillis - the sniff request timeout (in milliseconds) to be passed in as a query string parameter to elasticsearch. Allows to halt the request without any failure, as only the nodes that have responded within this timeout will be returned.

scheme - the scheme to associate sniffed nodes with (as it is not returned by elasticsearch)

Method Detail

sniffHosts

public java.util.List<org.apache.http.HttpHost> sniffHosts()
                                                    throws java.io.IOException

Calls the elasticsearch nodes info api, parses the response and returns all the found http hosts

Specified by:

sniffHosts in interface HostsSniffer

Throws:

java.io.IOException