1 files changed, 51 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/net/statistic/Load.java b/framework/src/onos/core/api/src/main/java/org/onosproject/net/statistic/Load.java
new file mode 100644
index 00000000..38fed04e
--- /dev/null
+++ b/framework/src/onos/core/api/src/main/java/org/onosproject/net/statistic/Load.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014 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.net.statistic;
+
+/**
+ * Simple data repository for link load information.
+ */
+public interface Load {
+
+    /**
+     * Obtain the current observed rate (in bytes/s) on a link.
+     *
+     * @return long value
+     */
+    long rate();
+
+    /**
+     * Obtain the latest bytes counter viewed on that link.
+     *
+     * @return long value
+     */
+    long latest();
+
+    /**
+     * Indicates whether this load was built on valid values.
+     *
+     * @return boolean
+     */
+    boolean isValid();
+
+    /**
+     * Returns when this value was seen.
+     *
+     * @return epoch time
+     */
+    long time();
+
+}