1 files changed, 45 insertions, 0 deletions
diff --git a/exec/java-exec/src/main/java/org/apache/drill/exec/resourcemgr/config/ResourcePoolTree.java b/exec/java-exec/src/main/java/org/apache/drill/exec/resourcemgr/config/ResourcePoolTree.java
new file mode 100644
index 000000000..309bb24db
--- /dev/null
+++ b/exec/java-exec/src/main/java/org/apache/drill/exec/resourcemgr/config/ResourcePoolTree.java
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+package org.apache.drill.exec.resourcemgr.config;
+
+import org.apache.drill.exec.ops.QueryContext;
+import org.apache.drill.exec.resourcemgr.NodeResources;
+import org.apache.drill.exec.resourcemgr.config.exception.QueueSelectionException;
+import org.apache.drill.exec.resourcemgr.config.selectionpolicy.QueueSelectionPolicy;
+
+import java.util.Map;
+
+/**
+ * Interface which defines the implementation of a hierarchical configuration for all the ResourcePool that will be
+ * used for ResourceManagement
+ */
+public interface ResourcePoolTree {
+
+  ResourcePool getRootPool();
+
+  Map<String, QueryQueueConfig> getAllLeafQueues();
+
+  double getResourceShare();
+
+  QueueAssignmentResult selectAllQueues(QueryContext queryContext);
+
+  QueryQueueConfig selectOneQueue(QueryContext queryContext, NodeResources queryMaxNodeResource)
+    throws QueueSelectionException;
+
+  QueueSelectionPolicy getSelectionPolicyInUse();
+}