Package org.apache.hadoop.hive.ql.exec

Source Code of org.apache.hadoop.hive.ql.exec.TextRecordReader

/**
* 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.hive.ql.exec;

import java.io.IOException;
import java.io.InputStream;

import org.apache.hadoop.mapred.LineRecordReader.LineReader;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;


public class TextRecordReader implements RecordReader {

  private LineReader  lineReader;
  private InputStream in;
  private Text        row;

  public void initialize(InputStream in, Configuration conf) throws IOException {
    lineReader = new LineReader(in, conf);
    this.in = in;
  }

  public Writable createRow() throws IOException {
    row = new Text();
    return row;
  }

  public int next(Writable row) throws IOException {
    if (lineReader == null)
      return -1;

    return lineReader.readLine((Text)row);
  }
 
  public void close() throws IOException {
    if (in != null)
      in.close();
  }
}
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