YARN-11614. Fix CheckStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/rmadmin/FederationRMAdminInterceptor.java

@@ -76,6 +76,7 @@
 import org.apache.hadoop.yarn.server.api.protocolrecords.DeleteFederationApplicationResponse;
 import org.apache.hadoop.yarn.server.federation.failover.FederationProxyProviderUtil;
 import org.apache.hadoop.yarn.server.federation.policies.manager.PriorityBroadcastPolicyManager;
+import org.apache.hadoop.yarn.server.federation.policies.manager.WeightedHomePolicyManager;
 import org.apache.hadoop.yarn.server.federation.policies.manager.WeightedLocalityPolicyManager;
 import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
 import org.apache.hadoop.yarn.server.federation.store.records.SubClusterIdInfo;
@@ -121,8 +122,8 @@ public class FederationRMAdminInterceptor extends AbstractRMAdminRequestIntercep
   private static final String COLON = ":";
 
   private static final List<String> SUPPORT_WEIGHT_MANAGERS =
-      new ArrayList<>(Arrays.asList(WeightedLocalityPolicyManager.class.getSimpleName(),
-      PriorityBroadcastPolicyManager.class.getSimpleName()));
+      new ArrayList<>(Arrays.asList(WeightedLocalityPolicyManager.class.getName(),
+      PriorityBroadcastPolicyManager.class.getName(), WeightedHomePolicyManager.class.getName()));
 
   private Map<SubClusterId, ResourceManagerAdministrationProtocol> adminRMProxies;
   private FederationStateStoreFacade federationFacade;
@@ -937,7 +938,7 @@ public SaveFederationQueuePolicyResponse saveFederationQueuePolicy(
     if (!checkPolicyManagerValid(policyManagerClassName, SUPPORT_WEIGHT_MANAGERS)) {
       routerMetrics.incrSaveFederationQueuePolicyFailedRetrieved();
       RouterServerUtil.logAndThrowException(policyManagerClassName +
-          "does not support the use of queue weights.", null);
+          " does not support the use of queue weights.", null);
     }
 
     String amRmWeight = federationQueueWeight.getAmrmWeight();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/test/java/org/apache/hadoop/yarn/server/router/rmadmin/TestFederationRMAdminInterceptor.java

@@ -643,15 +643,25 @@ public void testSaveFederationQueuePolicyErrorRequest() throws Exception {
     LambdaTestUtils.intercept(YarnException.class, "Missing Queue information.",
         () -> interceptor.saveFederationQueuePolicy(request));
 
-    // routerWeight / amrmWeight
-    // The sum of the routerWeight is not equal to 1.
+    // PolicyManager needs to support weight
     FederationQueueWeight federationQueueWeight2 = FederationQueueWeight.newInstance(
         "SC-1:0.7,SC-2:0.3", "SC-1:0.8,SC-2:0.3", "1.0");
     SaveFederationQueuePolicyRequest request2 =
-        SaveFederationQueuePolicyRequest.newInstance("root.a", federationQueueWeight2, "-");
+        SaveFederationQueuePolicyRequest.newInstance("root.a", federationQueueWeight2, "TestPolicyManager");
     LambdaTestUtils.intercept(YarnException.class,
-        "The sum of ratios for all subClusters must be equal to 1.",
+        "TestPolicyManager does not support the use of queue weights.",
         () -> interceptor.saveFederationQueuePolicy(request2));
+
+    // routerWeight / amrmWeight
+    // The sum of the routerWeight is not equal to 1.
+    String policyTypeName = WeightedLocalityPolicyManager.class.getCanonicalName();
+    FederationQueueWeight federationQueueWeight3 = FederationQueueWeight.newInstance(
+        "SC-1:0.7,SC-2:0.3", "SC-1:0.8,SC-2:0.3", "1.0");
+    SaveFederationQueuePolicyRequest request3 =
+        SaveFederationQueuePolicyRequest.newInstance("root.a", federationQueueWeight3, policyTypeName);
+    LambdaTestUtils.intercept(YarnException.class,
+        "The sum of ratios for all subClusters must be equal to 1.",
+        () -> interceptor.saveFederationQueuePolicy(request3));
   }
 
   @Test