Renamed registry and packet packages

net.onrc.onos.registry.controller.* => net.onrc.onos.core.registry.*
net.onrc.onos.packet => net.onrc.onos.core.packet

Change-Id: I595e325a2c0bab709f248dde5d84ff7b6185cf8b
diff --git a/src/main/java/net/onrc/onos/core/packet/DHCPPacketType.java b/src/main/java/net/onrc/onos/core/packet/DHCPPacketType.java
new file mode 100644
index 0000000..d68c22f
--- /dev/null
+++ b/src/main/java/net/onrc/onos/core/packet/DHCPPacketType.java
@@ -0,0 +1,116 @@
+/**
+*    Copyright 2011, Big Switch Networks, Inc. 
+*    Originally created by David Erickson, Stanford University
+* 
+*    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 net.onrc.onos.core.packet;
+
+public enum DHCPPacketType {
+    // From RFC 1533
+    DHCPDISCOVER        (1),
+    DHCPOFFER           (2),
+    DHCPREQUEST         (3),
+    DHCPDECLINE         (4),
+    DHCPACK             (5),
+    DHCPNAK             (6),
+    DHCPRELEASE         (7),
+    
+    // From RFC2132
+    DHCPINFORM          (8),
+    
+    // From RFC3203
+    DHCPFORCERENEW      (9),
+    
+    // From RFC4388
+    DHCPLEASEQUERY      (10),
+    DHCPLEASEUNASSIGNED (11),
+    DHCPLEASEUNKNOWN    (12),
+    DHCPLEASEACTIVE     (13);
+    
+    protected int value;
+    
+    private DHCPPacketType(int value) {
+        this.value = value;
+    }
+    
+    public int getValue() {
+        return value;
+    }
+    
+    public String toString(){
+        switch (value) {
+            case 1:
+                return "DHCPDISCOVER";
+            case 2:
+                return "DHCPOFFER";
+            case 3:
+                return "DHCPREQUEST";
+            case 4:
+                return "DHCPDECLINE";
+            case 5:
+                return "DHCPACK";
+            case 6:
+                return "DHCPNAK";
+            case 7:
+                return "DHCPRELEASE";
+            case 8:
+                return "DHCPINFORM";
+            case 9:
+                return "DHCPFORCERENEW";
+            case 10:
+                return "DHCPLEASEQUERY";
+            case 11:
+                return "DHCPLEASEUNASSIGNED";
+            case 12:
+                return "DHCPLEASEUNKNOWN";
+            case 13:
+                return "DHCPLEASEACTIVE";
+        }
+        
+        return null;
+    }
+    public static DHCPPacketType getType(int value) {
+        switch (value) {
+            case 1:
+                return DHCPDISCOVER;
+            case 2:
+                return DHCPOFFER;
+            case 3:
+                return DHCPREQUEST;
+            case 4:
+                return DHCPDECLINE;
+            case 5:
+                return DHCPACK;
+            case 6:
+                return DHCPNAK;
+            case 7:
+                return DHCPRELEASE;
+            case 8:
+                return DHCPINFORM;
+            case 9:
+                return DHCPFORCERENEW;
+            case 10:
+                return DHCPLEASEQUERY;
+            case 11:
+                return DHCPLEASEUNASSIGNED;
+            case 12:
+                return DHCPLEASEUNKNOWN;
+            case 13:
+                return DHCPLEASEACTIVE;
+        }
+        
+        return null;
+    }
+}