ReadSeqFile.java Source code

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Here is the source code for ReadSeqFile.java

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/**
* Tencent is pleased to support the open source community by making TDW available.
* Copyright (C) 2014 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed 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.
*/

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.SequenceFile;

import IndexService.IndexKey;
import IndexService.IndexValue;

public class ReadSeqFile {
    public static void main(String[] args) throws IOException {
        String filename = "/tmp/output/part-00000";
        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(conf);
        SequenceFile.Reader reader = new SequenceFile.Reader(fs, new Path(filename), conf);
        IndexKey key = new IndexKey();
        IndexValue value = new IndexValue();
        for (int i = 0; i < 100; i++) {
            reader.next(key, value);
        }
    }
}