public static BlockID getBlockID()

in hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/HddsUtils.java [504:569]
65 lines of code
24 McCabe index (conditional complexity)

  public static BlockID getBlockID(ContainerCommandRequestProtoOrBuilder msg) {
    ContainerProtos.DatanodeBlockID blockID = null;
    switch (msg.getCmdType()) {
    case DeleteBlock:
      if (msg.hasDeleteBlock()) {
        blockID = msg.getDeleteBlock().getBlockID();
      }
      break;
    case DeleteChunk:
      if (msg.hasDeleteChunk()) {
        blockID = msg.getDeleteChunk().getBlockID();
      }
      break;
    case GetBlock:
      if (msg.hasGetBlock()) {
        blockID = msg.getGetBlock().getBlockID();
      }
      break;
    case GetCommittedBlockLength:
      if (msg.hasGetCommittedBlockLength()) {
        blockID = msg.getGetCommittedBlockLength().getBlockID();
      }
      break;
    case GetSmallFile:
      if (msg.hasGetSmallFile()) {
        blockID = msg.getGetSmallFile().getBlock().getBlockID();
      }
      break;
    case ListChunk:
      if (msg.hasListChunk()) {
        blockID = msg.getListChunk().getBlockID();
      }
      break;
    case PutBlock:
      if (msg.hasPutBlock()) {
        blockID = msg.getPutBlock().getBlockData().getBlockID();
      }
      break;
    case PutSmallFile:
      if (msg.hasPutSmallFile()) {
        blockID = msg.getPutSmallFile().getBlock().getBlockData().getBlockID();
      }
      break;
    case ReadChunk:
      if (msg.hasReadChunk()) {
        blockID = msg.getReadChunk().getBlockID();
      }
      break;
    case WriteChunk:
      if (msg.hasWriteChunk()) {
        blockID = msg.getWriteChunk().getBlockID();
      }
      break;
    case FinalizeBlock:
      if (msg.hasFinalizeBlock()) {
        blockID = msg.getFinalizeBlock().getBlockID();
      }
      break;
    default:
      break;
    }

    return blockID != null
        ? BlockID.getFromProtobuf(blockID)
        : null;
  }