001    /**
002     * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
003     * Licensed under the Apache License, Version 2.0 (the "License");
004     * you may not use this file except in compliance with the License.
005     * You may obtain a copy of the License at
006     *
007     *   http://www.apache.org/licenses/LICENSE-2.0
008     *
009     *  Unless required by applicable law or agreed to in writing, software
010     *  distributed under the License is distributed on an "AS IS" BASIS,
011     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012     *  See the License for the specific language governing permissions and
013     *  limitations under the License. See accompanying LICENSE file.
014     */
015    package org.apache.oozie.command.wf;
016    
017    import org.apache.oozie.store.StoreException;
018    import org.apache.oozie.store.WorkflowStore;
019    import org.apache.oozie.store.Store;
020    import org.apache.oozie.util.XLog;
021    import org.apache.oozie.command.Command;
022    import org.apache.oozie.command.CommandException;
023    
024    public class PurgeCommand extends WorkflowCommand<Void> {
025        private int olderThan;
026    
027        public PurgeCommand(int olderThan) {
028            super("purge", "purge", 0, XLog.OPS);
029            this.olderThan = olderThan;
030        }
031    
032        @Override
033        protected Void call(WorkflowStore store) throws StoreException, CommandException {
034            XLog.getLog(getClass()).debug("Attempting to purge Jobs older than [{0}] days.", olderThan);
035            store.purge(this.olderThan);
036            XLog.getLog(getClass()).debug("Purge succeeded ");
037            return null;
038        }
039    
040    }