org.elasticsearch.hadoop.security.AuthenticationMethod Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.hadoop.security;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Defines the constants for determining the type of authentication to Elasticsearch we will be using.
*/
public enum AuthenticationMethod {
/**
* Simple mode uses no security features to authenticate to the Elasticsearch cluster
*/
SIMPLE("simple"),
/**
* Basic mode uses basic HTTP authentication using a username and password to authenticate to the Elasticsearch cluster
*/
BASIC("basic"),
/**
* PKI mode uses certificates that are provided to Elasticsearch during the SSL negotiation phase to determine identity.
*/
PKI("pki"),
/**
* Kerberos mode uses SPNEGO via HTTP to authenticate to the Elasticsearch cluster
*/
KERBEROS("kerberos");
private final static Map REGISTRY = new HashMap(4);
static {
REGISTRY.put(SIMPLE.value, SIMPLE);
REGISTRY.put(BASIC.value, BASIC);
REGISTRY.put(PKI.value, PKI);
REGISTRY.put(KERBEROS.value, KERBEROS);
}
/**
* Look up an AuthenticationMethod based on the given value of a setting.
* @param value The setting string
* @return An AuthenticationMethod if the string is valid, or null if none could be found.
*/
public static AuthenticationMethod get(String value) {
return REGISTRY.get(value);
}
/**
* @return a List of available setting values
*/
public static List getAvailableMethods() {
return Arrays.asList(SIMPLE.value, BASIC.value, PKI.value, KERBEROS.value);
}
private final String value;
AuthenticationMethod(String value) {
this.value = value;
}
/**
* The configuration value that corresponds to this method
* @return the settings string representation of this method
*/
public String getValue() {
return value;
}
}