Adding new actiontype for unfollow replication through ism plugin

Signed-off-by: aggarwalShivani <shivani.aggarwal@nokia.com>

Author: aggarwalShivani

src/main/kotlin/org/opensearch/commons/replication/ReplicationPluginInterface.kt

@@ -7,15 +7,15 @@ package org.opensearch.commons.replication
 import org.opensearch.action.support.master.AcknowledgedResponse
 import org.opensearch.client.node.NodeClient
 import org.opensearch.commons.replication.action.StopIndexReplicationRequest
-import org.opensearch.commons.replication.action.ReplicationActions.STOP_REPLICATION_ACTION_TYPE
+import org.opensearch.commons.replication.action.ReplicationActions.UNFOLLOW_REPLICATION_ACTION_TYPE
 import org.opensearch.commons.utils.recreateObject
 import org.opensearch.core.action.ActionListener
 import org.opensearch.core.action.ActionResponse
 import org.opensearch.core.common.io.stream.Writeable
 
 
 /**
- * All the transport action plugin interfaces for the cross-cluster-replication plugin.
+ * Transport action plugin interfaces for the cross-cluster-replication plugin.
  */
 object ReplicationPluginInterface {
 
@@ -32,7 +32,7 @@ object ReplicationPluginInterface {
         listener: ActionListener<AcknowledgedResponse>
     ) {
         return client.execute(
-            STOP_REPLICATION_ACTION_TYPE,
+            UNFOLLOW_REPLICATION_ACTION_TYPE,
             request,
             wrapActionListener(listener) { response ->
                 recreateObject(response) {

src/main/kotlin/org/opensearch/commons/replication/action/ReplicationActions.kt

@@ -8,20 +8,25 @@ import org.opensearch.action.ActionType
 import org.opensearch.action.support.master.AcknowledgedResponse
 
 /**
- * All the transport action information for the Replication plugin
+ * Information related to the transport stop replication action for the Replication plugin
  */
 object ReplicationActions {
 
     /**
-     * Stop replication. Internal only - Inter plugin communication.
+     * Action names for stopping replication
+     * STOP_REPLICATION_ACTION_NAME: action used for _stop REST API
+     * UNFOLLOW_REPLICATION_ACTION_NAME: internal action used for inter-plugin communication i.e. by ism to invoke stop
+     * replication.
      */
-    const val STOP_REPLICATION_NAME = "indices:admin/plugins/replication/index/stop"
-    const val STOP_REPLICATION_BASE_ACTION_NAME = "indices:admin/plugins/replication/index/unfollow"
+    const val STOP_REPLICATION_ACTION_NAME = "indices:admin/plugins/replication/index/stop"
+    const val UNFOLLOW_REPLICATION_ACTION_NAME = "indices:admin/plugins/replication/index/unfollow"
 
     /**
-     * Stop replication transport action type. Internal only - Inter plugin communication.
+     * Stop replication transport action types.
      */
     val STOP_REPLICATION_ACTION_TYPE =
-        ActionType(STOP_REPLICATION_NAME, ::AcknowledgedResponse)
+        ActionType(STOP_REPLICATION_ACTION_NAME, ::AcknowledgedResponse)
+    val UNFOLLOW_REPLICATION_ACTION_TYPE =
+        ActionType(UNFOLLOW_REPLICATION_ACTION_NAME, ::AcknowledgedResponse)
 
 }