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    
019    package org.apache.hadoop.mapred;
020    
021    import org.apache.hadoop.classification.InterfaceAudience;
022    import org.apache.hadoop.classification.InterfaceStability;
023    import org.apache.hadoop.fs.Path;
024    import org.apache.hadoop.fs.PathFilter;
025    
026    /**
027     * This class filters log files from directory given
028     * It doesnt accept paths having _logs.
029     * This can be used to list paths of output directory as follows:
030     *   Path[] fileList = FileUtil.stat2Paths(fs.listStatus(outDir,
031     *                                   new OutputLogFilter()));
032     */
033    @InterfaceAudience.Public
034    @InterfaceStability.Stable
035    public class OutputLogFilter implements PathFilter {
036      private static final PathFilter LOG_FILTER = 
037        new Utils.OutputFileUtils.OutputLogFilter();
038      public boolean accept(Path path) {
039        return LOG_FILTER.accept(path);
040      }
041    }