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001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.oozie.sla.listener;
019
020 import org.apache.hadoop.conf.Configuration;
021 import org.apache.oozie.client.event.SLAEvent;
022
023 /**
024 * Event listener for SLA related events, defining methods corresponding to
025 * SLA mets/misses
026 */
027 public abstract class SLAEventListener {
028
029 /**
030 * Initialize the listener
031 * @param conf
032 */
033 public abstract void init(Configuration conf) throws Exception;
034
035 /**
036 * Destroy the listener
037 */
038 public abstract void destroy();
039
040 /**
041 * on SLA job start-time limit met
042 * @param SLAEvent
043 */
044 public abstract void onStartMet(SLAEvent work);
045
046 /**
047 * on SLA job start-time limit missed
048 * @param SLAEvent
049 */
050 public abstract void onStartMiss(SLAEvent event);
051
052 /**
053 * on SLA job end-time limit met
054 * @param SLAEvent
055 */
056 public abstract void onEndMet(SLAEvent work);
057
058 /**
059 * on SLA job end-time limit missed
060 * @param SLAEvent
061 */
062 public abstract void onEndMiss(SLAEvent event);
063
064 /**
065 * on SLA job duration limit met
066 * @param SLAEvent
067 */
068 public abstract void onDurationMet(SLAEvent work);
069
070 /**
071 * on SLA job duration limit missed
072 * @param SLAEvent
073 */
074 public abstract void onDurationMiss(SLAEvent event);
075
076 }