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.command.coord;
019    
020    import java.util.List;
021    
022    import org.apache.oozie.SLAEventBean;
023    import org.apache.oozie.command.Command;
024    import org.apache.oozie.command.CommandException;
025    import org.apache.oozie.store.SLAStore;
026    import org.apache.oozie.store.Store;
027    import org.apache.oozie.store.StoreException;
028    import org.apache.oozie.util.XLog;
029    
030    public class SLAEventsCommand extends Command<List<SLAEventBean>, SLAStore> {
031    
032        private long seqId;
033        private int maxNoEvents;
034        private long lastSeqId = -1;
035    
036        public SLAEventsCommand(long seqId, int maxNoEvnts) {
037            super("SLAEventsCommand", "SLAEventsCommand", 1, XLog.OPS);
038            this.seqId = seqId;
039            this.maxNoEvents = maxNoEvnts;
040        }
041    
042        @Override
043        protected List<SLAEventBean> call(SLAStore store) throws StoreException, CommandException {
044            long lsId[] = new long[1];
045            List<SLAEventBean> slaEvntList = store.getSLAEventListNewerSeqLimited(seqId, maxNoEvents, lsId);
046            store.getEntityManager().clear();
047            setLastSeqId(lsId[0]);
048            return slaEvntList;
049        }
050    
051        public void setLastSeqId(long lastSeqId) {
052            this.lastSeqId = lastSeqId;
053        }
054    
055        public long getLastSeqId() {
056            return lastSeqId;
057        }
058    
059        @Override
060        public Class<? extends Store> getStoreClass() {
061            // TODO Auto-generated method stub
062            return SLAStore.class;
063        }
064    
065    }