HDDS-5488. [Ozone-Streaming] Add a new BlockOutputStream/KeyOutputStream to support streaming api

hadoop-hdds/client/pom.xml

@@ -66,6 +66,10 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <version>${spotbugs.version}</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>io.netty</groupId>
+      <artifactId>netty-buffer</artifactId>
+    </dependency>
   </dependencies>
 
   <build>

hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientRatis.java

@@ -53,6 +53,7 @@
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import org.apache.ratis.client.RaftClient;
+import org.apache.ratis.client.api.DataStreamApi;
 import org.apache.ratis.grpc.GrpcTlsConfig;
 import org.apache.ratis.proto.RaftProtos;
 import org.apache.ratis.protocol.exceptions.GroupMismatchException;
@@ -359,4 +360,8 @@ public XceiverClientReply sendCommandAsync(
     throw new UnsupportedOperationException(
             "Operation Not supported for ratis client");
   }
+
+  public DataStreamApi getDataStreamApi() {
+    return this.getClient().getDataStreamApi();
+  }
 }