/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.accumulo.server.master.state;
import java.util.HashMap;
import java.util.HashSet;
public enum TabletServerState {
// not a valid state, reserved for internal use only
RESERVED((byte) (-1)),
// the following are normally functioning states
NEW((byte) 0),
ONLINE((byte) 1),
UNRESPONSIVE((byte) 2),
DOWN((byte) 3),
// the following are bad states and cause tservers to be ignored by the master
BAD_SYSTEM_PASSWORD((byte) 101),
BAD_VERSION((byte) 102),
BAD_INSTANCE((byte) 103),
BAD_CONFIG((byte) 104),
BAD_VERSION_AND_INSTANCE((byte) 105),
BAD_VERSION_AND_CONFIG((byte) 106),
BAD_VERSION_AND_INSTANCE_AND_CONFIG((byte) 107),
BAD_INSTANCE_AND_CONFIG((byte) 108);
private byte id;
private static HashMap<Byte,TabletServerState> mapping;
private static HashSet<TabletServerState> badStates;
static {
mapping = new HashMap<>(TabletServerState.values().length);
badStates = new HashSet<>();
for (TabletServerState state : TabletServerState.values()) {
mapping.put(state.id, state);
if (state.id > 99)
badStates.add(state);
}
}
private TabletServerState(byte id) {
this.id = id;
}
public byte getId() {
return this.id;
}
public static TabletServerState getStateById(byte id) {
if (mapping.containsKey(id))
return mapping.get(id);
throw new IndexOutOfBoundsException("No such state");
}
}