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 */
018package org.apache.oozie.sla.listener;
019
020import org.apache.hadoop.conf.Configuration;
021import org.apache.oozie.client.event.SLAEvent;
022
023/**
024 * Event listener for SLA related events, defining methods corresponding to
025 * SLA mets/misses
026 */
027public 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}