WriteFDFFixedLengthRecord.java Source code

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Here is the source code for WriteFDFFixedLengthRecord.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 org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import Comm.ConstVar;
import FormatStorage.FieldMap;
import FormatStorage.FormatDataFile;
import FormatStorage.Head;
import FormatStorage.FieldMap.Field;
import FormatStorage.Unit.FieldValue;
import FormatStorage.Unit.Record;

public class WriteFDFFixedLengthRecord {
    public static void main(String[] args) throws Exception {
        FormatDataFile fdf = new FormatDataFile(new Configuration());
        String fileName = "/indextest/testfile1";
        FileSystem.get(new Configuration()).delete(new Path(fileName), true);
        Head head = new Head();
        FieldMap fieldMap = new FieldMap();
        fieldMap.addField(new Field(ConstVar.FieldType_Byte, ConstVar.Sizeof_Byte, (short) 0));
        fieldMap.addField(new Field(ConstVar.FieldType_Short, ConstVar.Sizeof_Byte, (short) 1));
        head.setFieldMap(fieldMap);
        head.setPrimaryIndex((short) 0);

        fdf.create(fileName, head);
        for (int i = 0; i < 200; i++) {
            Record record = new Record(2);
            record.addValue(new FieldValue((byte) i, (short) 0));
            record.addValue(new FieldValue((byte) i, (short) 1));
            fdf.addRecord(record);
        }
        fdf.close();
    }
}