TextInputFormat.java
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上传日期:2018-01-08
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- /**
- * 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.hadoop.mapred;
- import java.io.*;
- import org.apache.hadoop.fs.*;
- import org.apache.hadoop.io.LongWritable;
- import org.apache.hadoop.io.Text;
- import org.apache.hadoop.io.compress.*;
- /** An {@link InputFormat} for plain text files. Files are broken into lines.
- * Either linefeed or carriage-return are used to signal end of line. Keys are
- * the position in the file, and values are the line of text..
- * @deprecated Use {@link org.apache.hadoop.mapreduce.lib.input.TextInputFormat}
- * instead.
- */
- @Deprecated
- public class TextInputFormat extends FileInputFormat<LongWritable, Text>
- implements JobConfigurable {
- private CompressionCodecFactory compressionCodecs = null;
-
- public void configure(JobConf conf) {
- compressionCodecs = new CompressionCodecFactory(conf);
- }
-
- protected boolean isSplitable(FileSystem fs, Path file) {
- return compressionCodecs.getCodec(file) == null;
- }
- public RecordReader<LongWritable, Text> getRecordReader(
- InputSplit genericSplit, JobConf job,
- Reporter reporter)
- throws IOException {
-
- reporter.setStatus(genericSplit.toString());
- return new LineRecordReader(job, (FileSplit) genericSplit);
- }
- }