org.apache.hadoop.hbase.util.RegionSplitter#HexStringSplit ( )源码实例Demo

@Test
public void testCreateTableWithRegions() throws Exception {
  ColumnFamilyDescriptor columnFamilyDescriptor = ColumnFamilyDescriptorBuilder
    .newBuilder(Bytes.toBytes("cf"))
    .build();
  TableDescriptor tableDescriptor =
    TableDescriptorBuilder.newBuilder(TABLE_NAME)
      .setColumnFamily(columnFamilyDescriptor)
      .build();

  SplitAlgorithm algo = new RegionSplitter.HexStringSplit();
  byte[][] splits = algo.split(REGION_COUNT);

  LOG.info(String.format("Creating table %s with %d splits.", TABLE_NAME, REGION_COUNT));
  long startTime = System.currentTimeMillis();
  try {
    admin.createTable(tableDescriptor, splits);
    LOG.info(String.format("Pre-split table created successfully in %dms.",
        (System.currentTimeMillis() - startTime)));
  } catch (IOException e) {
    LOG.error("Failed to create table", e);
  }
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}
 

@Override
public RegionSplitter.SplitAlgorithm createSplitter(int cardinality) {
    return new RegionSplitter.HexStringSplit();
}