| /** |
| * 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.hadoop.yarn.service; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| /** |
| * Service LifeCycle. |
| */ |
| public interface Service { |
| |
| public enum STATE { |
| NOTINITED, |
| INITED, |
| STARTED, |
| STOPPED; |
| } |
| |
| void init(Configuration config); |
| void start(); |
| void stop(); |
| void register(ServiceStateChangeListener listener); |
| void unregister(ServiceStateChangeListener listener); |
| |
| String getName(); |
| Configuration getConfig(); |
| STATE getServiceState(); |
| long getStartTime(); |
| } |