public com.google.storagetransfer.v1.proto.TransferTypes.HdfsData.Builder
          getHdfsDataSourceBuilder() {
        return getHdfsDataSourceFieldBuilder().getBuilder();
      }
<pre>
An HDFS cluster data source.
</pre>

<code>.google.storagetransfer.v1.HdfsData hdfs_data_source = 20;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java