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

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Example 1
Source File: ProtobufUtil.java    From hbase with Apache License 2.0 4 votes vote down vote up 
/**
 * 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(UnsafeByteOperations.unsafeWrap(get.getRow()));
  builder.setCacheBlocks(get.getCacheBlocks());
  builder.setMaxVersions(get.getMaxVersions());
  if (get.getFilter() != null) {
    builder.setFilter(ProtobufUtil.toFilter(get.getFilter()));
  }
  get.getColumnFamilyTimeRange().forEach((cf, timeRange) -> {
    builder.addCfTimeRange(HBaseProtos.ColumnFamilyTimeRange.newBuilder()
      .setColumnFamily(UnsafeByteOperations.unsafeWrap(cf))
      .setTimeRange(toTimeRange(timeRange))
      .build());
  });
  builder.setTimeRange(ProtobufUtil.toTimeRange(get.getTimeRange()));
  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(UnsafeByteOperations.unsafeWrap(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(UnsafeByteOperations.unsafeWrap(family.getKey()));
      columnBuilder.clearQualifier();
      if (qualifiers != null && qualifiers.size() > 0) {
        for (byte[] qualifier: qualifiers) {
          columnBuilder.addQualifier(UnsafeByteOperations.unsafeWrap(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.getConsistency() != null && get.getConsistency() != Consistency.STRONG) {
    builder.setConsistency(toConsistency(get.getConsistency()));
  }

  Boolean loadColumnFamiliesOnDemand = get.getLoadColumnFamiliesOnDemandValue();
  if (loadColumnFamiliesOnDemand != null) {
    builder.setLoadColumnFamiliesOnDemand(loadColumnFamiliesOnDemand);
  }
  return builder.build();
}