[ONOS-2337,ONOS-2338,ONOS-2339]Pcep Controller

Change-Id: I27fee4669ec923a55d83993b493699c1c46a1b36
diff --git a/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepPacketStats.java b/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepPacketStats.java
index 92bb2db..60126a1 100755
--- a/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepPacketStats.java
+++ b/pcep/api/src/main/java/org/onosproject/pcep/controller/PcepPacketStats.java
@@ -42,6 +42,27 @@
     public int wrongPacketCount();
 
     /**
+     * Increments the received packet counter.
+     */
+    public void addInPacket();
+
+    /**
+     * Increments the sent packet counter.
+     */
+    public void addOutPacket();
+
+    /**
+     * Increments the sent packet counter by specified value.
+     * @param value of no of packets sent
+     */
+    public void addOutPacket(int value);
+
+    /**
+     * Increments the wrong packet counter.
+     */
+    public void addWrongPacket();
+
+    /**
      * Returns the time value.
      *
      * @return long value of time