| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.avro.mapred; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapred.FileInputFormat; |
| import org.apache.hadoop.mapred.FileSplit; |
| import org.apache.hadoop.mapred.InputSplit; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapred.RecordReader; |
| import org.apache.hadoop.mapred.Reporter; |
| |
| /** |
| * An {@link org.apache.hadoop.mapred.InputFormat} for Avro data files, which |
| * converts each datum to string form in the input key. The input value is |
| * always empty. The string representation is |
| * <a href="http://www.json.org/">JSON</a>. |
| * <p> |
| * This {@link org.apache.hadoop.mapred.InputFormat} is useful for applications |
| * that wish to process Avro data using tools like MapReduce Streaming. |
| */ |
| public class AvroAsTextInputFormat extends FileInputFormat<Text, Text> { |
| |
| @Override |
| protected FileStatus[] listStatus(JobConf job) throws IOException { |
| List<FileStatus> result = new ArrayList<FileStatus>(); |
| for (FileStatus file : super.listStatus(job)) |
| if (file.getPath().getName().endsWith(AvroOutputFormat.EXT)) |
| result.add(file); |
| return result.toArray(new FileStatus[0]); |
| } |
| |
| @Override |
| public RecordReader<Text, Text> |
| getRecordReader(InputSplit split, JobConf job, Reporter reporter) |
| throws IOException { |
| reporter.setStatus(split.toString()); |
| return new AvroAsTextRecordReader(job, (FileSplit) split); |
| } |
| } |