| package org.apache.helix.model; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.helix.HelixProperty; |
| import org.apache.helix.zookeeper.datamodel.ZNRecord; |
| |
| /** |
| * Represent a pause in the cluster |
| */ |
| public class PauseSignal extends HelixProperty { |
| |
| public enum PauseSignalProperty { |
| REASON |
| } |
| |
| /** |
| * Instantiate with an identifier |
| * @param id pause signal identifier |
| */ |
| public PauseSignal(String id) { |
| super(id); |
| } |
| |
| /** |
| * Instantiate with a pre-populated record |
| * @param record ZNRecord with fields corresponding to a pause |
| */ |
| public PauseSignal(ZNRecord record) { |
| super(record); |
| } |
| |
| /** |
| * Set the reason why the cluster is paused. |
| * @param reason |
| */ |
| public void setReason(String reason) { |
| _record.setSimpleField(PauseSignalProperty.REASON.name(), reason); |
| } |
| |
| public String getReason() { |
| return _record.getSimpleField(PauseSignalProperty.REASON.name()); |
| } |
| |
| @Override |
| public boolean isValid() { |
| return true; |
| } |
| } |