[Falcon] More flexible component choice for routing apps
Change-Id: I0b01f633332fa7f099d4b3ffe58d86141f3a040b
diff --git a/apps/routing/src/main/java/org/onosproject/routing/impl/NextHop.java b/apps/routing/src/main/java/org/onosproject/routing/impl/NextHop.java
new file mode 100644
index 0000000..69baf5b
--- /dev/null
+++ b/apps/routing/src/main/java/org/onosproject/routing/impl/NextHop.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2015 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.routing.impl;
+
+import java.util.Objects;
+
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Represents a next hop for routing, whose MAC address has already been resolved.
+ */
+public class NextHop {
+
+ private final IpAddress ip;
+ private final MacAddress mac;
+ private final NextHopGroupKey group;
+
+ /**
+ * Creates a new next hop.
+ *
+ * @param ip next hop's IP address
+ * @param mac next hop's MAC address
+ * @param group next hop's group
+ */
+ public NextHop(IpAddress ip, MacAddress mac, NextHopGroupKey group) {
+ this.ip = ip;
+ this.mac = mac;
+ this.group = group;
+ }
+
+ /**
+ * Returns the next hop's IP address.
+ *
+ * @return next hop's IP address
+ */
+ public IpAddress ip() {
+ return ip;
+ }
+
+ /**
+ * Returns the next hop's MAC address.
+ *
+ * @return next hop's MAC address
+ */
+ public MacAddress mac() {
+ return mac;
+ }
+
+ /**
+ * Returns the next hop group.
+ *
+ * @return group
+ */
+ public NextHopGroupKey group() {
+ return group;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (!(o instanceof NextHop)) {
+ return false;
+ }
+
+ NextHop that = (NextHop) o;
+
+ return Objects.equals(this.ip, that.ip) &&
+ Objects.equals(this.mac, that.mac) &&
+ Objects.equals(this.group, that.group);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(ip, mac, group);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("ip", ip)
+ .add("mac", mac)
+ .add("group", group)
+ .toString();
+ }
+}