API for core-based unicast route service.

Change-Id: I5d20c02f90b74ef8013898da2520bfb19a54b5c0
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/routing/ResolvedRoute.java b/incubator/api/src/main/java/org/onosproject/incubator/net/routing/ResolvedRoute.java
new file mode 100644
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+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/routing/ResolvedRoute.java
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+/*
+ * Copyright 2016 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.incubator.net.routing;
+
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+import org.onlab.packet.MacAddress;
+
+/**
+ * Represents a route with the next hop MAC address resolved.
+ */
+public class ResolvedRoute {
+
+    private final IpPrefix prefix;
+    private final IpAddress nextHop;
+    private final MacAddress nextHopMac;
+
+    /**
+     * Creates a new resolved route.
+     *
+     * @param route input route
+     * @param nextHopMac next hop MAC address
+     */
+    public ResolvedRoute(Route route, MacAddress nextHopMac) {
+        this.prefix = route.prefix();
+        this.nextHop = route.nextHop();
+        this.nextHopMac = nextHopMac;
+    }
+
+    /**
+     * Creates a new resolved route.
+     *
+     * @param prefix route prefix
+     * @param nextHop route next hop IP address
+     * @param nextHopMac next hop MAC address
+     */
+    public ResolvedRoute(IpPrefix prefix, IpAddress nextHop, MacAddress nextHopMac) {
+        this.prefix = prefix;
+        this.nextHop = nextHop;
+        this.nextHopMac = nextHopMac;
+    }
+
+    /**
+     * Returns the IP prefix.
+     *
+     * @return IP prefix
+     */
+    public IpPrefix prefix() {
+        return prefix;
+    }
+
+    /**
+     * Returns the next hop IP address.
+     *
+     * @return IP address
+     */
+    public IpAddress nextHop() {
+        return nextHop;
+    }
+
+    /**
+     * Returns the next hop MAC address.
+     *
+     * @return MAC address
+     */
+    public MacAddress nextHopMac() {
+        return nextHopMac;
+    }
+}