Change OLT app to push Q-in-Q tagging flows rather than transparent VLAN flows.

Device VLAN is set through configuration, subscriber VLAN can be added using
CLI (eventually this will come through a call from the AAA app).

Moving towards generalizing this app as an 'Access Device' app rather than purely OLT.

Change-Id: I9b82b39f6a2dee2c6f10f3fd13b261f3e0313db7
diff --git a/apps/olt/src/main/java/org/onosproject/olt/AccessDeviceConfig.java b/apps/olt/src/main/java/org/onosproject/olt/AccessDeviceConfig.java
new file mode 100644
index 0000000..90ed740
--- /dev/null
+++ b/apps/olt/src/main/java/org/onosproject/olt/AccessDeviceConfig.java
@@ -0,0 +1,43 @@
+/*
+ * 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.olt;
+
+import org.onlab.packet.VlanId;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.config.Config;
+
+/**
+ * Config object for access device data.
+ */
+public class AccessDeviceConfig extends Config<DeviceId> {
+
+    private static final String UPLINK = "uplink";
+    private static final String VLAN = "vlan";
+
+    /**
+     * Gets the access device configuration for this device.
+     *
+     * @return access device configuration
+     */
+    public AccessDeviceData getOlt() {
+        PortNumber uplink = PortNumber.portNumber(node.path(UPLINK).asText());
+        VlanId vlan = VlanId.vlanId(Short.parseShort(node.path(VLAN).asText()));
+
+        return new AccessDeviceData(subject(), uplink, vlan);
+    }
+}