Package co.nubetech.hiho.mapreduce

Source Code of co.nubetech.hiho.mapreduce.TestDBInputDelimMapper

/**
* Copyright 2011 Nube Technologies
*
* 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.
*/
package co.nubetech.hiho.mapreduce;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.sql.Time;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Date;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;
import org.junit.Test;

import co.nubetech.hiho.common.HIHOConf;
import co.nubetech.hiho.mapreduce.lib.db.ColumnInfo;
import co.nubetech.hiho.mapreduce.lib.db.GenericDBWritable;

public class TestDBInputDelimMapper {
  @Test
  public final void testMapperValidValues() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Configuration conf = new Configuration();
    conf.set(HIHOConf.INPUT_OUTPUT_DELIMITER, ",");
    when(context.getConfiguration()).thenReturn(conf);

    DBInputDelimMapper mapper = new DBInputDelimMapper();

    ColumnInfo intColumn = new ColumnInfo(0, Types.INTEGER, "intColumn");
    ColumnInfo stringColumn = new ColumnInfo(1, Types.VARCHAR,
        "stringColumn");
    ColumnInfo dateColumn = new ColumnInfo(1, Types.DATE, "dateColumn");
    ColumnInfo longColumn = new ColumnInfo(1, Types.BIGINT, "longColumn");
    ColumnInfo booleanColumn = new ColumnInfo(1, Types.BOOLEAN,
        "booleanColumn");
    ColumnInfo doubleColumn = new ColumnInfo(1, Types.DOUBLE,
        "doubleColumn");
    ColumnInfo charColumn = new ColumnInfo(1, Types.CHAR, "charColumn");
    ColumnInfo timeColumn = new ColumnInfo(1, Types.TIME, "timeColumn");
    ColumnInfo timeStampColumn = new ColumnInfo(1, Types.TIMESTAMP,
        "timeStampColumn");
    ColumnInfo floatColumn = new ColumnInfo(1, Types.FLOAT, "floatColumn");

    ArrayList<ColumnInfo> columns = new ArrayList<ColumnInfo>();
    columns.add(intColumn);
    columns.add(stringColumn);
    columns.add(dateColumn);
    columns.add(longColumn);
    columns.add(booleanColumn);
    columns.add(doubleColumn);
    columns.add(charColumn);
    columns.add(timeColumn);
    columns.add(timeStampColumn);
    columns.add(floatColumn);

    ArrayList<Comparable> values = new ArrayList<Comparable>();
    values.add(new Integer(12));
    values.add(new String("sam"));
    values.add(new Date());
    values.add(new Long(26564l));
    values.add(true);
    values.add(1.235);
    values.add('a');
    values.add(new Time(new Date().getTime()));
    values.add(new Time(new Date().getTime()));
    values.add(new Float(1.0f));

    GenericDBWritable val = new GenericDBWritable(columns, values);
    LongWritable key = new LongWritable(1);
    mapper.map(key, val, context);

    Text outkey = new Text();
    Text outval = new Text();
    StringBuilder builder = new StringBuilder();
    builder.append(new Integer(12) + "," + new String("sam") + ","
        + new Date() + "," + new Long(26564l) + "," + true + ","
        + 1.235 + "," + 'a' + "," + new Time(new Date().getTime())
        + "," + new Time(new Date().getTime()) + "," + new Float(1.0f));

    outval.set(builder.toString());
    verify(context).write(outkey, outval);
  }
 
  @Test
  public final void testMapperValidValuesDelmiter() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Configuration conf = new Configuration();
    String delimiter = "DELIM";
    conf.set(HIHOConf.INPUT_OUTPUT_DELIMITER, delimiter);
    when(context.getConfiguration()).thenReturn(conf);

    DBInputDelimMapper mapper = new DBInputDelimMapper();

    ColumnInfo intColumn = new ColumnInfo(0, Types.INTEGER, "intColumn");
    ColumnInfo stringColumn = new ColumnInfo(1, Types.VARCHAR,
        "stringColumn");
    ColumnInfo dateColumn = new ColumnInfo(1, Types.DATE, "dateColumn");
    ColumnInfo longColumn = new ColumnInfo(1, Types.BIGINT, "longColumn");
    ColumnInfo booleanColumn = new ColumnInfo(1, Types.BOOLEAN,
        "booleanColumn");
    ColumnInfo doubleColumn = new ColumnInfo(1, Types.DOUBLE,
        "doubleColumn");
    ColumnInfo charColumn = new ColumnInfo(1, Types.CHAR, "charColumn");
    ColumnInfo timeColumn = new ColumnInfo(1, Types.TIME, "timeColumn");
    ColumnInfo timeStampColumn = new ColumnInfo(1, Types.TIMESTAMP,
        "timeStampColumn");
    ColumnInfo floatColumn = new ColumnInfo(1, Types.FLOAT, "floatColumn");

    ArrayList<ColumnInfo> columns = new ArrayList<ColumnInfo>();
    columns.add(intColumn);
    columns.add(stringColumn);
    columns.add(dateColumn);
    columns.add(longColumn);
    columns.add(booleanColumn);
    columns.add(doubleColumn);
    columns.add(charColumn);
    columns.add(timeColumn);
    columns.add(timeStampColumn);
    columns.add(floatColumn);

    ArrayList<Comparable> values = new ArrayList<Comparable>();
    values.add(new Integer(12));
    values.add(new String("sam"));
    values.add(new Date());
    values.add(new Long(26564l));
    values.add(true);
    values.add(1.235);
    values.add('a');
    values.add(new Time(new Date().getTime()));
    values.add(new Time(new Date().getTime()));
    values.add(new Float(1.0f));

    GenericDBWritable val = new GenericDBWritable(columns, values);
    LongWritable key = new LongWritable(1);
    mapper.map(key, val, context);

    Text outkey = new Text();
    Text outval = new Text();
    StringBuilder builder = new StringBuilder();
    builder.append(new Integer(12) + delimiter + new String("sam") + delimiter
        + new Date() + delimiter + new Long(26564l) + delimiter + true + delimiter
        + 1.235 + delimiter + 'a' + delimiter + new Time(new Date().getTime())
        + delimiter + new Time(new Date().getTime()) + delimiter + new Float(1.0f));

    outval.set(builder.toString());
    verify(context).write(outkey, outval);
  }

  @Test
  public final void testMapperNullValues() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Configuration conf = new Configuration();
    conf.set(HIHOConf.INPUT_OUTPUT_DELIMITER, ",");
    when(context.getConfiguration()).thenReturn(conf);

    DBInputDelimMapper mapper = new DBInputDelimMapper();
    ArrayList<ColumnInfo> columns = new ArrayList<ColumnInfo>();
    ArrayList values = new ArrayList();
    GenericDBWritable val = new GenericDBWritable(columns, values);
    LongWritable key = new LongWritable(1);
    mapper.map(key, val, context);

    Text outkey = new Text();
    Text outval = new Text();
    verify(context).write(outkey, outval);
  }
}
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