/*
* 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.cluster.routing;
import static org.elasticsearch.test.ESTestCase.*;
/**
* Utility class the makes random modifications to ShardRouting
*/
public final class RandomShardRoutingMutator {
private RandomShardRoutingMutator() {
}
public static void randomChange(ShardRouting shardRouting, String[] nodes) {
switch (randomInt(3)) {
case 0:
if (shardRouting.unassigned() == false) {
shardRouting.moveToUnassigned(new UnassignedInfo(randomReason(), randomAsciiOfLength(10)));
} else if (shardRouting.unassignedInfo() != null) {
shardRouting.updateUnassignedInfo(new UnassignedInfo(randomReason(), randomAsciiOfLength(10)));
}
break;
case 1:
if (shardRouting.unassigned()) {
shardRouting.initialize(randomFrom(nodes), -1);
}
break;
case 2:
if (shardRouting.primary()) {
shardRouting.moveFromPrimary();
} else {
shardRouting.moveToPrimary();
}
break;
case 3:
if (shardRouting.initializing()) {
shardRouting.moveToStarted();
}
break;
}
}
public static UnassignedInfo.Reason randomReason() {
switch (randomInt(9)) {
case 0:
return UnassignedInfo.Reason.INDEX_CREATED;
case 1:
return UnassignedInfo.Reason.CLUSTER_RECOVERED;
case 2:
return UnassignedInfo.Reason.INDEX_REOPENED;
case 3:
return UnassignedInfo.Reason.DANGLING_INDEX_IMPORTED;
case 4:
return UnassignedInfo.Reason.NEW_INDEX_RESTORED;
case 5:
return UnassignedInfo.Reason.EXISTING_INDEX_RESTORED;
case 6:
return UnassignedInfo.Reason.REPLICA_ADDED;
case 7:
return UnassignedInfo.Reason.ALLOCATION_FAILED;
case 8:
return UnassignedInfo.Reason.NODE_LEFT;
default:
return UnassignedInfo.Reason.REROUTE_CANCELLED;
}
}
}