Generate cluster namespace

UPGRADING.md

@@ -279,4 +279,42 @@ After:
 
 ### ShardStats renamed to IndexShardStats
 - The `ShardStats` class has been renamed to `IndexShardStats`, this affects:
-  - `IndicesStats`'s `shards` field.
+  - `IndicesStats`'s `shards` field.
+
+### AllocationExplainResponse
+- The `allocationDelay`, `configuredDelay` and `remainingDelay` properties have been corrected to be of type `Time` instead of `String`.
+
+### PutComponentTemplateRequest
+- The `aliases`, `mappings` and `settings` properties have been removed as they should be set within the `template` property.
+
+### HealthRequest
+- The `level` property is now of type `ClusterHealthLevel` instead of `Level`.
+
+### HealthResponse
+- The `activeShardsPercentAsNumber` property has been corrected to be of type `double` instead of `String`.
+- The `taskMaxWaitingInQueueMillis` property has been corrected to be of type `long` instead of `String`. 
+
+### PendingTask
+- The `timeInQueue` property has been corrected to be of type `Time` instead of `String`.
+- The `timeInQueueMillis` property has been corrected to be of type `long` instead of `int`.
+
+### RerouteRequest
+- The `metric` property is now of type `List<ClusterRerouteMetric>` instead of `List<String>`.
+
+### StateRequest
+- The `metric` property is now of type `List<ClusterStateMetric>` instead of `List<String>`.
+
+### ClusterIndicesShards
+- The `primaries`, `replication` and `total` properties have been corrected to be of type `Integer` instead of `Double`.
+
+### ClusterProcessCpu
+- The `percent` property has been corrected to be of type `double` instead of `int`.
+
+### FieldTypes
+- The `scriptCount` property has been removed as it is not supported by OpenSearch.
+
+### FieldTypesMappings
+- The `runtimeFieldTypes` property has been removed as it is not supported by OpenSearch.
+
+### OperatingSystemMemoryInfo
+- The `freePercent` and `usedPercent` properties have been corrected to be of type `double` instead of `int`.

java-client/src/generated/java/org/opensearch/client/opensearch/OpenSearchAsyncClientBase.java

@@ -42,6 +42,7 @@
 import javax.annotation.Nullable;
 import org.opensearch.client.ApiClient;
 import org.opensearch.client.opensearch._types.OpenSearchException;
+import org.opensearch.client.opensearch.cluster.OpenSearchClusterAsyncClient;
 import org.opensearch.client.opensearch.core.InfoRequest;
 import org.opensearch.client.opensearch.core.InfoResponse;
 import org.opensearch.client.opensearch.dangling_indices.OpenSearchDanglingIndicesAsyncClient;
@@ -63,6 +64,10 @@ public OpenSearchAsyncClientBase(OpenSearchTransport transport, @Nullable Transp
 
     // ----- Child clients
 
+    public OpenSearchClusterAsyncClient cluster() {
+        return new OpenSearchClusterAsyncClient(this.transport, this.transportOptions);
+    }
+
     public OpenSearchDanglingIndicesAsyncClient danglingIndices() {
         return new OpenSearchDanglingIndicesAsyncClient(this.transport, this.transportOptions);
     }

java-client/src/generated/java/org/opensearch/client/opensearch/OpenSearchClientBase.java

@@ -41,6 +41,7 @@
 import javax.annotation.Nullable;
 import org.opensearch.client.ApiClient;
 import org.opensearch.client.opensearch._types.OpenSearchException;
+import org.opensearch.client.opensearch.cluster.OpenSearchClusterClient;
 import org.opensearch.client.opensearch.core.InfoRequest;
 import org.opensearch.client.opensearch.core.InfoResponse;
 import org.opensearch.client.opensearch.dangling_indices.OpenSearchDanglingIndicesClient;
@@ -62,6 +63,10 @@ public OpenSearchClientBase(OpenSearchTransport transport, @Nullable TransportOp
 
     // ----- Child clients
 
+    public OpenSearchClusterClient cluster() {
+        return new OpenSearchClusterClient(this.transport, this.transportOptions);
+    }
+
     public OpenSearchDanglingIndicesClient danglingIndices() {
         return new OpenSearchDanglingIndicesClient(this.transport, this.transportOptions);
     }