[SDFAB-90] Implement priority mechanism in the Policy framework.

Change-Id: I738956566bfcf1bd5e2d4fcd9bfef153b5fb674a
diff --git a/impl/src/main/java/org/onosproject/segmentrouting/policy/impl/TrafficMatchRequest.java b/impl/src/main/java/org/onosproject/segmentrouting/policy/impl/TrafficMatchRequest.java
index 6e01e01..aaddc3d 100644
--- a/impl/src/main/java/org/onosproject/segmentrouting/policy/impl/TrafficMatchRequest.java
+++ b/impl/src/main/java/org/onosproject/segmentrouting/policy/impl/TrafficMatchRequest.java
@@ -19,6 +19,7 @@
 import org.onosproject.segmentrouting.policy.api.PolicyId;
 import org.onosproject.segmentrouting.policy.api.TrafficMatch;
 import org.onosproject.segmentrouting.policy.api.TrafficMatchId;
+import org.onosproject.segmentrouting.policy.api.TrafficMatchPriority;
 import org.onosproject.segmentrouting.policy.api.TrafficMatchState;
 
 import java.util.Objects;
@@ -97,6 +98,15 @@
         return trafficMatch;
     }
 
+    /**
+     * Returns the priority.
+     *
+     * @return the priority
+     */
+    public TrafficMatchPriority priority() {
+        return trafficMatch.trafficMatchPriority();
+    }
+
     @Override
     public int hashCode() {
         return Objects.hash(trafficMatch);