Last change
on this file since 35 was
20,
checked in by waue, 16 years ago
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將改完的 hadoop 0.17版package 放來備份
目前繼續開發 hadoop 0.16 + hbase 1.3
|
File size:
941 bytes
|
Rev | Line | |
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[20] | 1 | package tw.org.nchc.util; |
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| 2 | |
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| 3 | import java.io.IOException; |
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| 4 | |
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| 5 | import org.apache.hadoop.fs.FileSystem; |
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| 6 | import org.apache.hadoop.fs.Path; |
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| 7 | import org.apache.hadoop.io.LongWritable; |
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| 8 | import org.apache.hadoop.io.SequenceFile; |
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| 9 | import org.apache.hadoop.mapred.JobConf; |
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| 10 | |
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| 11 | import tw.org.nchc.tuple.Tuple; |
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| 12 | |
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| 13 | public class LocalTupleRecordWriter { |
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| 14 | |
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| 15 | private LongWritable mLong = new LongWritable(); |
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| 16 | |
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| 17 | private long mCnt = 0; |
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| 18 | |
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| 19 | private SequenceFile.Writer writer; |
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| 20 | |
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| 21 | public LocalTupleRecordWriter(String file) throws IOException { |
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| 22 | JobConf config = new JobConf(); |
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| 23 | |
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| 24 | writer = SequenceFile.createWriter(FileSystem.get(config), config, |
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| 25 | new Path(file), LongWritable.class, Tuple.class); |
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| 26 | } |
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| 27 | |
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| 28 | public void add(Tuple tuple) throws IOException { |
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| 29 | mLong.set(mCnt); |
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| 30 | writer.append(mLong, tuple); |
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| 31 | mCnt++; |
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| 32 | } |
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| 33 | |
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| 34 | public long getRecordCount() { |
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| 35 | return mCnt; |
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| 36 | } |
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| 37 | |
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| 38 | public void close() throws IOException { |
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| 39 | writer.close(); |
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| 40 | } |
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| 41 | } |
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