/** * Copyright 2005 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *     http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package org.apache.hadoop.mapred;import java.io.IOException;import java.io.File;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.io.SequenceFile;import org.apache.hadoop.io.MapFile;/** An {@link InputFormat} for {@link SequenceFile}s. */public class SequenceFileInputFormat extends InputFormatBase {  public SequenceFileInputFormat() {    setMinSplitSize(SequenceFile.SYNC_INTERVAL);  }  protected File[] listFiles(FileSystem fs, JobConf job)    throws IOException {    File[] files = super.listFiles(fs, job);    for (int i = 0; i < files.length; i++) {      File file = files[i];      if (file.isDirectory()) {                   // it's a MapFile        files[i] = new File(file, MapFile.DATA_FILE_NAME); // use the data file      }    }    return files;  }  public RecordReader getRecordReader(FileSystem fs, FileSplit split,                                      JobConf job, Reporter reporter)    throws IOException {    reporter.setStatus(split.toString());    return new SequenceFileRecordReader(job, split);  }}