cherry-picked ONOS-5841 to master

Change-Id: I562abbce373e53ef0419fe02bec950ec8f857b69
diff --git a/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwardMetrics.java b/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwardMetrics.java
new file mode 100644
index 0000000..02cf6d9
--- /dev/null
+++ b/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwardMetrics.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2017-present 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.fwd;
+
+import org.onlab.packet.MacAddress;
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+/**
+ * Sample reactive forwarding application.
+ */
+public class ReactiveForwardMetrics {
+    private Long replyPacket = null;
+    private Long inPacket = null;
+    private Long droppedPacket = null;
+    private Long forwardedPacket = null;
+    private MacAddress macAddress;
+
+    ReactiveForwardMetrics(Long replyPacket, Long inPacket, Long droppedPacket,
+                           Long forwardedPacket, MacAddress macAddress) {
+        this.replyPacket = replyPacket;
+        this.inPacket = inPacket;
+        this.droppedPacket = droppedPacket;
+        this.forwardedPacket = forwardedPacket;
+        this.macAddress = macAddress;
+    }
+
+    public void incremnetReplyPacket() {
+        replyPacket++;
+
+    }
+
+    public void incrementInPacket() {
+        inPacket++;
+    }
+
+    public void incrementDroppedPacket() {
+        droppedPacket++;
+    }
+
+    public void incrementForwardedPacket() {
+        forwardedPacket++;
+    }
+
+    public MacAddress getMacAddress() {
+        return macAddress;
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this)
+            .add("inpktCounter ", inPacket)
+            .add("replypktCounter ", replyPacket)
+            .add("forwardpktCounter ", forwardedPacket)
+            .add("droppktCounter ", droppedPacket).toString();
+    }
+}