[ONOS-3535] Implement control metrics aggregation logic
Change-Id: I9953146851d5f3fdf7bcee9561fa86ddb7c7b3fe
diff --git a/apps/cpman/src/main/java/org/onosproject/cpman/ControlLoad.java b/apps/cpman/src/main/java/org/onosproject/cpman/ControlLoad.java
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+++ b/apps/cpman/src/main/java/org/onosproject/cpman/ControlLoad.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed 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.onosproject.cpman;
+
+import org.onosproject.net.statistic.Load;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Data repository for control plane load information.
+ */
+public interface ControlLoad extends Load {
+
+ /**
+ * Obtains the average of the specified time duration.
+ *
+ * @param duration time duration
+ * @param unit time unit
+ * @return average control plane metric value
+ */
+ long average(int duration, TimeUnit unit);
+
+ /**
+ * Obtains the average of all time duration.
+ *
+ * @return average control plane metric value
+ */
+ long average();
+}