org.elasticsearch.cluster.routing.ShardRoutingState Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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.cluster.routing;
import org.elasticsearch.ElasticSearchIllegalStateException;
/**
* Represents the current state of a {@link ShardRouting} as defined by the
* cluster.
*/
public enum ShardRoutingState {
/**
* The shard is not assigned to any node.
*/
UNASSIGNED((byte) 1),
/**
* The shard is initializing (probably recovering from either a peer shard
* or gateway).
*/
INITIALIZING((byte) 2),
/**
* The shard is started.
*/
STARTED((byte) 3),
/**
* The shard is in the process being relocated.
*/
RELOCATING((byte) 4);
private byte value;
ShardRoutingState(byte value) {
this.value = value;
}
/**
* Byte value of this {@link ShardRoutingState}
* @return Byte value of this {@link ShardRoutingState}
*/
public byte value() {
return this.value;
}
public static ShardRoutingState fromValue(byte value) {
switch (value) {
case 1:
return UNASSIGNED;
case 2:
return INITIALIZING;
case 3:
return STARTED;
case 4:
return RELOCATING;
default:
throw new ElasticSearchIllegalStateException("No routing state mapped for [" + value + "]");
}
}
}