Renamed forwarding and proxyarp packages

net.onrc.onos.ofcontroller.forwarding => net.onrc.onos.apps.forwarding
net.onrc.onos.ofcontroller.proxyarp => net.onrc.onos.apps.proxyarp

Change-Id: Id368d4fd675b00ad84c17d44dd9804f010710cde
diff --git a/src/main/java/net/onrc/onos/apps/proxyarp/PacketOutNotification.java b/src/main/java/net/onrc/onos/apps/proxyarp/PacketOutNotification.java
new file mode 100644
index 0000000..bd64e59
--- /dev/null
+++ b/src/main/java/net/onrc/onos/apps/proxyarp/PacketOutNotification.java
@@ -0,0 +1,28 @@
+package net.onrc.onos.apps.proxyarp;
+
+import java.io.Serializable;
+
+/**
+ * A PacketOutNotification contains data sent between ONOS instances that
+ * directs other instances to send a packet out a set of ports. This is an
+ * abstract base class that will be subclassed by specific types of
+ * notifications.
+ */
+public abstract class PacketOutNotification implements Serializable{
+
+    private static final long serialVersionUID = 1L;
+
+    protected final byte[] packet;
+    
+    /**
+     * Class constructor.
+     * @param packet the packet data to send in the packet-out
+     */
+    public PacketOutNotification() {
+    	packet = null;
+    }
+    
+    public PacketOutNotification(byte[] packet) {
+        this.packet = packet;
+    }
+}