Last change
on this file 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
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File size:
941 bytes
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Line | |
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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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