Java Code Examples for org.apache.hadoop.hbase.client.Get.getMaxResultsPerColumnFamily()

The following are Jave code examples for showing how to use getMaxResultsPerColumnFamily() of the org.apache.hadoop.hbase.client.Get class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
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Example 1
Project: ditb   File: ProtobufUtil.java   View Source Code Vote up 4 votes
/**
 * Create a protocol buffer Get based on a client Get.
 *
 * @param get the client Get
 * @return a protocol buffer Get
 * @throws IOException
 */
public static ClientProtos.Get toGet(
    final Get get) throws IOException {
  ClientProtos.Get.Builder builder =
    ClientProtos.Get.newBuilder();
  builder.setRow(ByteStringer.wrap(get.getRow()));
  builder.setCacheBlocks(get.getCacheBlocks());
  builder.setMaxVersions(get.getMaxVersions());
  if (get.getFilter() != null) {
    builder.setFilter(ProtobufUtil.toFilter(get.getFilter()));
  }
  for (Entry<byte[], TimeRange> cftr : get.getColumnFamilyTimeRange().entrySet()) {
    HBaseProtos.ColumnFamilyTimeRange.Builder b = HBaseProtos.ColumnFamilyTimeRange.newBuilder();
    b.setColumnFamily(ByteString.copyFrom(cftr.getKey()));
    b.setTimeRange(timeRangeToProto(cftr.getValue()));
    builder.addCfTimeRange(b);
  }
  TimeRange timeRange = get.getTimeRange();
  if (!timeRange.isAllTime()) {
    HBaseProtos.TimeRange.Builder timeRangeBuilder =
      HBaseProtos.TimeRange.newBuilder();
    timeRangeBuilder.setFrom(timeRange.getMin());
    timeRangeBuilder.setTo(timeRange.getMax());
    builder.setTimeRange(timeRangeBuilder.build());
  }
  Map<String, byte[]> attributes = get.getAttributesMap();
  if (!attributes.isEmpty()) {
    NameBytesPair.Builder attributeBuilder = NameBytesPair.newBuilder();
    for (Map.Entry<String, byte[]> attribute: attributes.entrySet()) {
      attributeBuilder.setName(attribute.getKey());
      attributeBuilder.setValue(ByteStringer.wrap(attribute.getValue()));
      builder.addAttribute(attributeBuilder.build());
    }
  }
  if (get.hasFamilies()) {
    Column.Builder columnBuilder = Column.newBuilder();
    Map<byte[], NavigableSet<byte[]>> families = get.getFamilyMap();
    for (Map.Entry<byte[], NavigableSet<byte[]>> family: families.entrySet()) {
      NavigableSet<byte[]> qualifiers = family.getValue();
      columnBuilder.setFamily(ByteStringer.wrap(family.getKey()));
      columnBuilder.clearQualifier();
      if (qualifiers != null && qualifiers.size() > 0) {
        for (byte[] qualifier: qualifiers) {
          columnBuilder.addQualifier(ByteStringer.wrap(qualifier));
        }
      }
      builder.addColumn(columnBuilder.build());
    }
  }
  if (get.getMaxResultsPerColumnFamily() >= 0) {
    builder.setStoreLimit(get.getMaxResultsPerColumnFamily());
  }
  if (get.getRowOffsetPerColumnFamily() > 0) {
    builder.setStoreOffset(get.getRowOffsetPerColumnFamily());
  }
  if (get.isCheckExistenceOnly()){
    builder.setExistenceOnly(true);
  }
  if (get.isClosestRowBefore()){
    builder.setClosestRowBefore(true);
  }
  if (get.getConsistency() != null && get.getConsistency() != Consistency.STRONG) {
    builder.setConsistency(toConsistency(get.getConsistency()));
  }

  return builder.build();
}