hemantk-12 commented on code in PR #5099:
URL: https://github.com/apache/ozone/pull/5099#discussion_r1287499376


##########
hadoop-hdds/tools/src/main/java/org/apache/hadoop/hdds/scm/cli/TopologySubcommand.java:
##########
@@ -136,10 +144,11 @@ public Class<?> getParentType() {
   // Format
   // Location: rack1
   //  ipAddress(hostName) OperationalState
-  private void printOrderedByLocation(List<HddsProtos.Node> nodes) {
+  private void printOrderedByLocation(List<HddsProtos.Node> nodes,
+                                      String state) throws IOException {
     HashMap<String, TreeSet<DatanodeDetails>> tree =

Review Comment:
   nit: interface over implementation.
   ```suggestion
       Map<String, TreeSet<DatanodeDetails>> tree =  new HashMap<>();
       Map<DatanodeDetails, HddsProtos.NodeOperationalState> operationalState =
           new HashMap<>();
   ```



##########
hadoop-ozone/dist/src/main/smoketest/admincli/printTopology.robot:
##########
@@ -0,0 +1,32 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+*** Settings ***
+Documentation       Test ozone admin printTopology command
+Library             OperatingSystem
+Library             BuiltIn
+Resource            ../commonlib.robot
+Test Timeout        5 minutes
+
+
+*** Test Cases ***
+Run printTopology
+    ${output} =         Execute          ozone admin printTopology
+                        Should Match Regexp     ${output}     State =
+
+Run printTopology as JSON
+    ${output} =         Execute             ozone admin printTopology --json
+    ${keys} =           Execute             echo '${output}' | jq -r '.[0] | 
keys'
+                        Should Contain      ${output}           ipAddress

Review Comment:
   I think it is missing a new line at the end of the file. If yes, please add 
that.



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