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The following commit(s) were added to refs/heads/trunk by this push:
     new 5db4c0b  YARN-10412. Move CS placement rule related changes to a 
separate package. Contributed by Gergely Pollak
5db4c0b is described below

commit 5db4c0bf702b91ee73910eb9d4f51ac7fa5054fa
Author: Szilard Nemeth <snem...@apache.org>
AuthorDate: Fri Mar 12 14:10:16 2021 +0100

    YARN-10412. Move CS placement rule related changes to a separate package. 
Contributed by Gergely Pollak
---
 .../placement/CSMappingPlacementRule.java          |   5 +-
 .../resourcemanager/placement/VariableContext.java |   2 +-
 .../{ => csmappingrule}/MappingQueuePath.java      |   2 +-
 .../placement/{ => csmappingrule}/MappingRule.java |   3 +-
 .../{ => csmappingrule}/MappingRuleAction.java     |   3 +-
 .../{ => csmappingrule}/MappingRuleActionBase.java |   4 +-
 .../{ => csmappingrule}/MappingRuleActions.java    |   3 +-
 .../{ => csmappingrule}/MappingRuleMatcher.java    |   4 +-
 .../{ => csmappingrule}/MappingRuleMatchers.java   |   4 +-
 .../{ => csmappingrule}/MappingRuleResult.java     |   2 +-
 .../{ => csmappingrule}/MappingRuleResultType.java |   2 +-
 .../MappingRuleValidationContext.java              |   4 +-
 .../MappingRuleValidationContextImpl.java          |   4 +-
 .../MappingRuleValidationHelper.java               |   2 +-
 .../capacity/CapacitySchedulerConfiguration.java   | 148 ++++++++++-----------
 .../capacity/placement/MappingRuleCreator.java     |  10 +-
 .../converter/LegacyMappingRuleToJson.java         |   3 +-
 .../scheduler/fair/QueueManager.java               |  23 ++--
 .../placement/MockQueueHierarchyBuilder.java       |   2 +-
 .../placement/TestAppNameMappingPlacementRule.java |   1 +
 .../TestUserGroupMappingPlacementRule.java         |   1 +
 .../TestCSMappingPlacementRule.java                |   7 +-
 .../{ => csmappingrule}/TestMappingRule.java       |   3 +-
 .../TestMappingRuleActions.java                    |   3 +-
 .../TestMappingRuleMatchers.java                   |   3 +-
 .../TestMappingRuleValidationContextImpl.java      |   3 +-
 .../{ => csmappingrule}/TestVariableContext.java   |   3 +-
 .../scheduler/capacity/TestQueueMappings.java      |  10 +-
 .../capacity/placement/TestMappingRuleCreator.java |   6 +-
 .../converter/TestLegacyMappingRuleToJson.java     |   2 +-
 30 files changed, 144 insertions(+), 128 deletions(-)

diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/CSMappingPlacementRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/CSMappingPlacementRule.java
index 821d055..04dbb64 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/CSMappingPlacementRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/CSMappingPlacementRule.java
@@ -25,6 +25,7 @@ import org.apache.hadoop.security.Groups;
 import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.*;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
@@ -74,12 +75,12 @@ public class CSMappingPlacementRule extends PlacementRule {
   private boolean failOnConfigError = true;
 
   @VisibleForTesting
-  void setGroups(Groups groups) {
+  public void setGroups(Groups groups) {
     this.groups = groups;
   }
 
   @VisibleForTesting
-  void setFailOnConfigError(boolean failOnConfigError) {
+  public void setFailOnConfigError(boolean failOnConfigError) {
     this.failOnConfigError = failOnConfigError;
   }
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/VariableContext.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/VariableContext.java
index 9fc42af..0a30e92 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/VariableContext.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/VariableContext.java
@@ -55,7 +55,7 @@ public class VariableContext {
    * @param name Name of the variable to check
    * @return true if the variable is immutable
    */
-  boolean isImmutable(String name) {
+  public boolean isImmutable(String name) {
     return (immutableNames != null && immutableNames.contains(name));
   }
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingQueuePath.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingQueuePath.java
similarity index 97%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingQueuePath.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingQueuePath.java
index b1ccf70..2a0dfb4 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingQueuePath.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingQueuePath.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import static 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration.DOT;
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRule.java
similarity index 97%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRule.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRule.java
index 9d67d78..4f05f64 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRule.java
@@ -16,9 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 /**
  * Mapping rule represents a single mapping setting defined by the user. All
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleAction.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleAction.java
similarity index 94%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleAction.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleAction.java
index 3b66d30..36b2c8c 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleAction.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleAction.java
@@ -16,9 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 /**
  * This interface represents the action part of a MappingRule, action are
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActionBase.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActionBase.java
similarity index 95%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActionBase.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActionBase.java
index b0c86ea..6c93c21 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActionBase.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActionBase.java
@@ -16,7 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
+
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 /**
  * This class implements the fallback logic for MappingRuleActions, this can
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActions.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActions.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActions.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActions.java
index 3f19dcd..4826062 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleActions.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleActions.java
@@ -16,9 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 /**
  * This class contains all the actions and some helper methods to generate 
them.
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatcher.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatcher.java
similarity index 87%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatcher.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatcher.java
index d2650e9..c64478c 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatcher.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatcher.java
@@ -16,7 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
+
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 public interface MappingRuleMatcher {
   /**
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatchers.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatchers.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatchers.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatchers.java
index 24f147b..9d56e89 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleMatchers.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleMatchers.java
@@ -16,7 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
+
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 
 import java.util.Arrays;
 import java.util.Set;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResult.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResult.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResult.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResult.java
index eb66721..ed61e64 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResult.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResult.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 /**
  * This class represents the outcome of an action.
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResultType.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResultType.java
similarity index 94%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResultType.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResultType.java
index c4ffa1c..d8d33b6 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleResultType.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleResultType.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 public enum MappingRuleResultType {
   /**
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContext.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContext.java
similarity index 96%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContext.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContext.java
index 172ce41..ca939f2 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContext.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContext.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
 
@@ -30,7 +30,7 @@ import java.util.Set;
  * interface should contain all validation related data and functions, this way
  * schedulers or engines can be changed without changing the MappingRules.
  */
-interface MappingRuleValidationContext {
+public interface MappingRuleValidationContext {
   /**
    * This method should determine if the provided queue path can result in
    * a possible placement. It should fail if the provided path cannot be placed
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContextImpl.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContextImpl.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContextImpl.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContextImpl.java
index 1b768d4..bff6d4f 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationContextImpl.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationContextImpl.java
@@ -15,7 +15,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
 import org.apache.hadoop.thirdparty.com.google.common.collect.Sets;
@@ -48,7 +48,7 @@ public class MappingRuleValidationContextImpl
    */
   private final CapacitySchedulerQueueManager queueManager;
 
-  MappingRuleValidationContextImpl(CapacitySchedulerQueueManager qm) {
+  public MappingRuleValidationContextImpl(CapacitySchedulerQueueManager qm) {
     queueManager = qm;
   }
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationHelper.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationHelper.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationHelper.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationHelper.java
index d23f735..f4f19e0 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MappingRuleValidationHelper.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/MappingRuleValidationHelper.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
index 90979dc..5b29060 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacitySchedulerConfiguration.java
@@ -18,12 +18,10 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity;
 
-import org.apache.hadoop.ipc.WeightedTimeCostProvider;
 import 
org.apache.hadoop.thirdparty.com.google.common.annotations.VisibleForTesting;
 import org.apache.hadoop.thirdparty.com.google.common.base.Strings;
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
-import org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRule;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.QueuePlacementRuleUtils;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.placement.MappingRuleCreator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -85,41 +83,41 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
       LoggerFactory.getLogger(CapacitySchedulerConfiguration.class);
 
   private static final String CS_CONFIGURATION_FILE = "capacity-scheduler.xml";
-  
+
   @Private
   public static final String PREFIX = "yarn.scheduler.capacity.";
-  
+
   @Private
   public static final String DOT = ".";
-  
+
   @Private
   public static final String MAXIMUM_APPLICATIONS_SUFFIX =
     "maximum-applications";
-  
+
   @Private
   public static final String MAXIMUM_SYSTEM_APPLICATIONS =
     PREFIX + MAXIMUM_APPLICATIONS_SUFFIX;
-  
+
   @Private
   public static final String MAXIMUM_AM_RESOURCE_SUFFIX =
     "maximum-am-resource-percent";
-  
+
   @Private
   public static final String MAXIMUM_APPLICATION_MASTERS_RESOURCE_PERCENT =
     PREFIX + MAXIMUM_AM_RESOURCE_SUFFIX;
 
   @Private
   public static final String QUEUES = "queues";
-  
+
   @Private
   public static final String CAPACITY = "capacity";
-  
+
   @Private
   public static final String MAXIMUM_CAPACITY = "maximum-capacity";
-  
+
   @Private
   public static final String USER_LIMIT = "minimum-user-limit-percent";
-  
+
   @Private
   public static final String USER_LIMIT_FACTOR = "user-limit-factor";
 
@@ -134,17 +132,17 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
 
   @Private
   public static final String STATE = "state";
-  
+
   @Private
   public static final String ACCESSIBLE_NODE_LABELS = "accessible-node-labels";
-  
+
   @Private
   public static final String DEFAULT_NODE_LABEL_EXPRESSION =
       "default-node-label-expression";
 
   public static final String RESERVE_CONT_LOOK_ALL_NODES = PREFIX
       + "reservations-continue-look-all-nodes";
-  
+
   @Private
   public static final boolean DEFAULT_RESERVE_CONT_LOOK_ALL_NODES = true;
 
@@ -177,29 +175,29 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
 
   public static final String DEFAULT_APP_ORDERING_POLICY =
       FIFO_APP_ORDERING_POLICY;
-  
+
   @Private
   public static final int DEFAULT_MAXIMUM_SYSTEM_APPLICATIIONS = 10000;
-  
+
   @Private
-  public static final float 
+  public static final float
   DEFAULT_MAXIMUM_APPLICATIONMASTERS_RESOURCE_PERCENT = 0.1f;
 
   @Private
   public static final float UNDEFINED = -1;
-  
+
   @Private
   public static final float MINIMUM_CAPACITY_VALUE = 0;
-  
+
   @Private
   public static final float MAXIMUM_CAPACITY_VALUE = 100;
-  
+
   @Private
   public static final float DEFAULT_MAXIMUM_CAPACITY_VALUE = -1.0f;
-  
+
   @Private
   public static final int DEFAULT_USER_LIMIT = 100;
-  
+
   @Private
   public static final float DEFAULT_USER_LIMIT_FACTOR = 1.0f;
 
@@ -217,17 +215,17 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   @Private public static final String RESOURCE_CALCULATOR_CLASS =
       PREFIX + "resource-calculator";
 
-  @Private public static final Class<? extends ResourceCalculator> 
+  @Private public static final Class<? extends ResourceCalculator>
   DEFAULT_RESOURCE_CALCULATOR_CLASS = DefaultResourceCalculator.class;
-  
+
   @Private
   public static final String ROOT = "root";
 
-  @Private 
-  public static final String NODE_LOCALITY_DELAY = 
+  @Private
+  public static final String NODE_LOCALITY_DELAY =
      PREFIX + "node-locality-delay";
 
-  @Private 
+  @Private
   public static final int DEFAULT_NODE_LOCALITY_DELAY = 40;
 
   @Private
@@ -312,7 +310,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
 
   @Private
   public static final Integer DEFAULT_CONFIGURATION_APPLICATION_PRIORITY = 0;
-  
+
   @Private
   public static final String AVERAGE_CAPACITY = "average-capacity";
 
@@ -421,7 +419,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   public CapacitySchedulerConfiguration() {
     this(new Configuration());
   }
-  
+
   public CapacitySchedulerConfiguration(Configuration configuration) {
     this(configuration, true);
   }
@@ -454,15 +452,15 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     }
     return getQueuePrefix(queue) + ACCESSIBLE_NODE_LABELS + DOT + label + DOT;
   }
-  
+
   public int getMaximumSystemApplications() {
-    int maxApplications = 
+    int maxApplications =
       getInt(MAXIMUM_SYSTEM_APPLICATIONS, 
DEFAULT_MAXIMUM_SYSTEM_APPLICATIIONS);
     return maxApplications;
   }
-  
+
   public float getMaximumApplicationMasterResourcePercent() {
-    return getFloat(MAXIMUM_APPLICATION_MASTERS_RESOURCE_PERCENT, 
+    return getFloat(MAXIMUM_APPLICATION_MASTERS_RESOURCE_PERCENT,
         DEFAULT_MAXIMUM_APPLICATIONMASTERS_RESOURCE_PERCENT);
   }
 
@@ -473,23 +471,23 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
    * @return setting specified or -1 if not set
    */
   public int getMaximumApplicationsPerQueue(String queue) {
-    int maxApplicationsPerQueue = 
-      getInt(getQueuePrefix(queue) + MAXIMUM_APPLICATIONS_SUFFIX, 
-          (int)UNDEFINED);
+    int maxApplicationsPerQueue =
+        getInt(getQueuePrefix(queue) + MAXIMUM_APPLICATIONS_SUFFIX,
+            (int)UNDEFINED);
     return maxApplicationsPerQueue;
   }
 
   /**
    * Get the maximum am resource percent per queue setting.
    * @param queue name of the queue
-   * @return per queue setting or defaults to the global am-resource-percent 
+   * @return per queue setting or defaults to the global am-resource-percent
    *         setting if per queue setting not present
    */
   public float getMaximumApplicationMasterResourcePerQueuePercent(String 
queue) {
-    return getFloat(getQueuePrefix(queue) + MAXIMUM_AM_RESOURCE_SUFFIX, 
+    return getFloat(getQueuePrefix(queue) + MAXIMUM_AM_RESOURCE_SUFFIX,
                getMaximumApplicationMasterResourcePercent());
   }
-  
+
   public void setMaximumApplicationMasterResourcePerQueuePercent(String queue,
       float percent) {
     setFloat(getQueuePrefix(queue) + MAXIMUM_AM_RESOURCE_SUFFIX, percent);
@@ -555,7 +553,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
 
     return capacity;
   }
-  
+
   public void setCapacity(String queue, float capacity) {
     if (queue.equals("root")) {
       throw new IllegalArgumentException(
@@ -599,7 +597,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
         : maxCapacity;
     return maxCapacity;
   }
-  
+
   public void setMaximumCapacity(String queue, float maxCapacity) {
     if (maxCapacity > MAXIMUM_CAPACITY_VALUE) {
       throw new IllegalArgumentException("Illegal " +
@@ -609,7 +607,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     LOG.debug("CSConf - setMaxCapacity: queuePrefix={}, maxCapacity={}",
         getQueuePrefix(queue), maxCapacity);
   }
-  
+
   public void setCapacityByLabel(String queue, String label, float capacity) {
     setFloat(getNodeLabelPrefix(queue, label) + CAPACITY, capacity);
   }
@@ -630,7 +628,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     set(getNodeLabelPrefix(queue, label) + MAXIMUM_CAPACITY,
         absoluteResourceCapacity);
   }
-  
+
   public int getUserLimit(String queue) {
     int userLimit = getInt(getQueuePrefix(queue) + USER_LIMIT,
         DEFAULT_USER_LIMIT);
@@ -643,12 +641,12 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   @SuppressWarnings("unchecked")
   public <S extends SchedulableEntity> OrderingPolicy<S> getAppOrderingPolicy(
       String queue) {
-  
+
     String policyType = get(getQueuePrefix(queue) + ORDERING_POLICY,
         DEFAULT_APP_ORDERING_POLICY);
-    
+
     OrderingPolicy<S> orderingPolicy;
-    
+
     if (policyType.trim().equals(FIFO_APP_ORDERING_POLICY)) {
        policyType = FifoOrderingPolicy.class.getName();
     }
@@ -686,18 +684,18 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     LOG.debug("here setUserLimit: queuePrefix={}, userLimit={}",
         getQueuePrefix(queue), getUserLimit(queue));
   }
-  
+
   public float getUserLimitFactor(String queue) {
-    float userLimitFactor = 
-      getFloat(getQueuePrefix(queue) + USER_LIMIT_FACTOR, 
-          DEFAULT_USER_LIMIT_FACTOR);
+    float userLimitFactor =
+        getFloat(getQueuePrefix(queue) + USER_LIMIT_FACTOR,
+            DEFAULT_USER_LIMIT_FACTOR);
     return userLimitFactor;
   }
 
   public void setUserLimitFactor(String queue, float userLimitFactor) {
-    setFloat(getQueuePrefix(queue) + USER_LIMIT_FACTOR, userLimitFactor); 
+    setFloat(getQueuePrefix(queue) + USER_LIMIT_FACTOR, userLimitFactor);
   }
-  
+
   public QueueState getConfiguredState(String queue) {
     String state = get(getQueuePrefix(queue) + STATE);
     if (state == null) {
@@ -725,12 +723,12 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     String str = StringUtils.join(",", labels);
     set(getQueuePrefix(queue) + ACCESSIBLE_NODE_LABELS, str);
   }
-  
+
   public Set<String> getAccessibleNodeLabels(String queue) {
     String accessibleLabelStr =
         get(getQueuePrefix(queue) + ACCESSIBLE_NODE_LABELS);
 
-    // When accessible-label is null, 
+    // When accessible-label is null,
     if (accessibleLabelStr == null) {
       // Only return null when queue is not ROOT
       if (!queue.equals(ROOT)) {
@@ -757,7 +755,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
         set.add(str.trim());
       }
     }
-    
+
     // if labels contains "*", only keep ANY behind
     if (set.contains(RMNodeLabelsManager.ANY)) {
       set.clear();
@@ -813,15 +811,15 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     }
     return capacity;
   }
-  
+
   public float getLabeledQueueCapacity(String queue, String label) {
     return internalGetLabeledQueueCapacity(queue, label, CAPACITY, 0f);
   }
-  
+
   public float getLabeledQueueMaximumCapacity(String queue, String label) {
     return internalGetLabeledQueueCapacity(queue, label, MAXIMUM_CAPACITY, 
100f);
   }
-  
+
   public String getDefaultNodeLabelExpression(String queue) {
     String defaultLabelExpression = get(getQueuePrefix(queue)
         + DEFAULT_NODE_LABEL_EXPRESSION);
@@ -830,7 +828,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     }
     return defaultLabelExpression.trim();
   }
-  
+
   public void setDefaultNodeLabelExpression(String queue, String exp) {
     set(getQueuePrefix(queue) + DEFAULT_NODE_LABEL_EXPRESSION, exp);
   }
@@ -860,7 +858,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
     return getBoolean(RESERVE_CONT_LOOK_ALL_NODES,
         DEFAULT_RESERVE_CONT_LOOK_ALL_NODES);
   }
-  
+
   private static String getAclKey(QueueACL acl) {
     return "acl_" + StringUtils.toLowerCase(acl.toString());
   }
@@ -987,13 +985,13 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
 
     return queues;
   }
-  
+
   public void setQueues(String queue, String[] subQueues) {
     set(getQueuePrefix(queue) + QUEUES, StringUtils.arrayToString(subQueues));
     LOG.debug("CSConf - setQueues: qPrefix={}, queues={}",
         getQueuePrefix(queue), StringUtils.arrayToString(subQueues));
   }
-  
+
   public Resource getMinimumAllocation() {
     int minimumMemory = getInt(
         YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB,
@@ -1087,9 +1085,9 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   public ResourceCalculator getResourceCalculator() {
     return ReflectionUtils.newInstance(
         getClass(
-            RESOURCE_CALCULATOR_CLASS, 
-            DEFAULT_RESOURCE_CALCULATOR_CLASS, 
-            ResourceCalculator.class), 
+            RESOURCE_CALCULATOR_CLASS,
+            DEFAULT_RESOURCE_CALCULATOR_CLASS,
+            ResourceCalculator.class),
         this);
   }
 
@@ -1101,8 +1099,8 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   public void setResourceComparator(
       Class<? extends ResourceCalculator> resourceCalculatorClass) {
     setClass(
-        RESOURCE_CALCULATOR_CLASS, 
-        resourceCalculatorClass, 
+        RESOURCE_CALCULATOR_CLASS,
+        resourceCalculatorClass,
         ResourceCalculator.class);
   }
 
@@ -1488,18 +1486,18 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
    * Sets the <em>disable_preemption</em> property in order to indicate
    * whether or not container preemption will be disabled for the specified
    * queue.
-   * 
+   *
    * @param queue queue path
    * @param preemptionDisabled true if preemption is disabled on queue
    */
   public void setPreemptionDisabled(String queue, boolean preemptionDisabled) {
     setBoolean(getQueuePrefix(queue) + QUEUE_PREEMPTION_DISABLED,
-               preemptionDisabled); 
+               preemptionDisabled);
   }
 
   /**
    * Indicates whether preemption is disabled on the specified queue.
-   * 
+   *
    * @param queue queue path to query
    * @param defaultVal used as default if the <em>disable_preemption</em>
    * is not set in the configuration
@@ -1533,7 +1531,7 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
   public Set<String> getConfiguredNodeLabels(String queuePath) {
     Set<String> configuredNodeLabels = new HashSet<String>();
     Entry<String, String> e = null;
-    
+
     Iterator<Entry<String, String>> iter = iterator();
     while (iter.hasNext()) {
       e = iter.next();
@@ -1551,10 +1549,10 @@ public class CapacitySchedulerConfiguration extends 
ReservationSchedulerConfigur
         configuredNodeLabels.add(labelName);
       }
     }
-    
+
     // always add NO_LABEL
     configuredNodeLabels.add(RMNodeLabelsManager.NO_LABEL);
-    
+
     return configuredNodeLabels;
   }
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/MappingRuleCreator.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/MappingRuleCreator.java
index 11eb5bf..1c6f324 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/MappingRuleCreator.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/MappingRuleCreator.java
@@ -27,11 +27,11 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.apache.commons.lang3.StringUtils;
-import org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRule;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleAction;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleActions;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleMatcher;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleMatchers;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleAction;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleActions;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleMatcher;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleMatchers;
 
 // These are generated classes - use GeneratePojos class to create them
 // if they are missing
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/LegacyMappingRuleToJson.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/LegacyMappingRuleToJson.java
index 6aa4049..5ae5832 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/LegacyMappingRuleToJson.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/LegacyMappingRuleToJson.java
@@ -22,11 +22,10 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.apache.hadoop.util.StringUtils;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingQueuePath;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingQueuePath;
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
 
 public class LegacyMappingRuleToJson {
   //Legacy rule parse helper constants
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueueManager.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueueManager.java
index 5c26644..d620077 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueueManager.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueueManager.java
@@ -18,6 +18,17 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair;
 
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import 
org.apache.hadoop.thirdparty.com.google.common.annotations.VisibleForTesting;
+import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableList;
+import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -29,18 +40,6 @@ import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArrayList;
 
-import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableList;
-import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
-import 
org.apache.hadoop.thirdparty.com.google.common.annotations.VisibleForTesting;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.apache.hadoop.classification.InterfaceAudience.Private;
-import org.apache.hadoop.classification.InterfaceStability.Unstable;
-import org.apache.hadoop.yarn.api.records.ApplicationId;
-import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
-
 /**
  * Maintains a list of queues as well as scheduling parameters for each queue,
  * such as guaranteed share allocations, from the fair scheduler config file.
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MockQueueHierarchyBuilder.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MockQueueHierarchyBuilder.java
index f7c8a99..b268e5a 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MockQueueHierarchyBuilder.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/MockQueueHierarchyBuilder.java
@@ -36,7 +36,7 @@ import java.util.Set;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
-class MockQueueHierarchyBuilder {
+public class MockQueueHierarchyBuilder {
   private static final String ROOT = "root";
   private static final String QUEUE_SEP = ".";
   private List<String> queuePaths = Lists.newArrayList();
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestAppNameMappingPlacementRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestAppNameMappingPlacementRule.java
index 9bcac9a..3665dd0 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestAppNameMappingPlacementRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestAppNameMappingPlacementRule.java
@@ -24,6 +24,7 @@ import org.apache.hadoop.security.Groups;
 import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestUserGroupMappingPlacementRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestUserGroupMappingPlacementRule.java
index d93496b..84a3e6c 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestUserGroupMappingPlacementRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestUserGroupMappingPlacementRule.java
@@ -35,6 +35,7 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
 import 
org.apache.hadoop.yarn.server.resourcemanager.placement.QueueMapping.MappingType;
 import 
org.apache.hadoop.yarn.server.resourcemanager.placement.QueueMapping.QueueMappingBuilder;
 import 
org.apache.hadoop.yarn.server.resourcemanager.placement.TestUserGroupMappingPlacementRule.QueueMappingTestData.QueueMappingTestDataBuilder;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestCSMappingPlacementRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestCSMappingPlacementRule.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestCSMappingPlacementRule.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestCSMappingPlacementRule.java
index f0b19c4..c3cd6df 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestCSMappingPlacementRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestCSMappingPlacementRule.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableMap;
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
@@ -24,6 +24,9 @@ import org.apache.hadoop.security.Groups;
 import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.ApplicationPlacementContext;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.CSMappingPlacementRule;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MockQueueHierarchyBuilder;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager;
@@ -48,12 +51,12 @@ import static junit.framework.TestCase.assertNotNull;
 import static junit.framework.TestCase.assertNull;
 import static junit.framework.TestCase.assertTrue;
 import static junit.framework.TestCase.fail;
-import static 
org.apache.hadoop.yarn.server.resourcemanager.placement.FairQueuePlacementUtils.DOT;
 import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
 public class TestCSMappingPlacementRule {
+  public static final String DOT = ".";
   private static final Logger LOG = LoggerFactory
       .getLogger(TestCSMappingPlacementRule.class);
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRule.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRule.java
similarity index 96%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRule.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRule.java
index 1b734f5..eb0441c 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRule.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRule.java
@@ -16,13 +16,14 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.Sets;
 import org.apache.hadoop.util.StringUtils;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 import org.junit.Test;
 
 public class TestMappingRule {
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleActions.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleActions.java
similarity index 97%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleActions.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleActions.java
index 4d4daa1..9224e67 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleActions.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleActions.java
@@ -16,7 +16,8 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 import org.junit.Test;
 
 import static org.junit.Assert.*;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleMatchers.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleMatchers.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleMatchers.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleMatchers.java
index e66dd91..3e06863 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleMatchers.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleMatchers.java
@@ -16,10 +16,11 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.Sets;
 import junit.framework.TestCase;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 import org.junit.Test;
 
 import java.util.HashMap;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleValidationContextImpl.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleValidationContextImpl.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleValidationContextImpl.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleValidationContextImpl.java
index 383f70e..a015e31 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestMappingRuleValidationContextImpl.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestMappingRuleValidationContextImpl.java
@@ -16,9 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.yarn.exceptions.YarnException;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MockQueueHierarchyBuilder;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager;
 import org.junit.Test;
 
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestVariableContext.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestVariableContext.java
similarity index 98%
rename from 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestVariableContext.java
rename to 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestVariableContext.java
index 07872a8..30d265b 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/TestVariableContext.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/placement/csmappingrule/TestVariableContext.java
@@ -16,9 +16,10 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.server.resourcemanager.placement;
+package org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
+import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 import org.junit.Test;
 
 import java.util.HashMap;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestQueueMappings.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestQueueMappings.java
index dcd0fe0..695ceb7 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestQueueMappings.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestQueueMappings.java
@@ -20,7 +20,7 @@ package 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity;
 import java.io.IOException;
 import java.util.List;
 
-import org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRule;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
 import org.apache.hadoop.yarn.server.resourcemanager.placement.QueueMapping;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -42,10 +42,10 @@ public class TestQueueMappings {
       CapacitySchedulerConfiguration.ROOT + "." + Q1;
   private final static String Q2_PATH =
       CapacitySchedulerConfiguration.ROOT + "." + Q2;
-  
+
   private CapacityScheduler cs;
   private YarnConfiguration conf;
-  
+
   @Before
   public void setup() {
     CapacitySchedulerConfiguration csConf =
@@ -70,7 +70,7 @@ public class TestQueueMappings {
 
     LOG.info("Setup top-level queues q1 and q2");
   }
-  
+
   @Test
   public void testQueueMappingSpecifyingNotExistedQueue() {
     // if the mapping specifies a queue that does not exist, reinitialize will
@@ -85,7 +85,7 @@ public class TestQueueMappings {
     }
     Assert.assertTrue("queue initialization failed for non-existent q", fail);
   }
-  
+
   @Test
   public void testQueueMappingTrimSpaces() throws IOException {
     // space trimming
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/TestMappingRuleCreator.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/TestMappingRuleCreator.java
index 778adcb..06f2bc6 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/TestMappingRuleCreator.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/TestMappingRuleCreator.java
@@ -23,9 +23,9 @@ import static org.junit.Assert.assertEquals;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRule;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleResult;
-import 
org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRuleResultType;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleResult;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRuleResultType;
 import org.apache.hadoop.yarn.server.resourcemanager.placement.VariableContext;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.placement.schema.MappingRulesDescription;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.placement.schema.Rule;
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/TestLegacyMappingRuleToJson.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/TestLegacyMappingRuleToJson.java
index 9a2b97f..5d0c12e 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/TestLegacyMappingRuleToJson.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/placement/converter/TestLegacyMappingRuleToJson.java
@@ -19,7 +19,7 @@ package 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.placeme
 
 import static org.junit.Assert.*;
 
-import org.apache.hadoop.yarn.server.resourcemanager.placement.MappingRule;
+import 
org.apache.hadoop.yarn.server.resourcemanager.placement.csmappingrule.MappingRule;
 import 
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 import org.junit.Test;
 


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