Modify MPLS/VLAN query

- ONOS-3507 VlanQuery to return available VLAN IDs
- ONOS-3508 MplsQuery to return available MPLS Labels
- Advertise that VLAN and MPLS resources are available on OVS

Change-Id: I74cd05393c8919b4823d0666348008adb93c9290
diff --git a/drivers/src/main/java/org/onosproject/driver/query/FullVlanAvailable.java b/drivers/src/main/java/org/onosproject/driver/query/FullVlanAvailable.java
new file mode 100644
index 0000000..292192a
--- /dev/null
+++ b/drivers/src/main/java/org/onosproject/driver/query/FullVlanAvailable.java
@@ -0,0 +1,51 @@
+/*
+ * 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.driver.query;
+
+import java.util.Set;
+import java.util.stream.IntStream;
+
+import org.onlab.packet.VlanId;
+import org.onlab.util.GuavaCollectors;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.behaviour.VlanQuery;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * Driver which always responds that all VLAN IDs are available for the Device.
+ */
+@Beta
+public class FullVlanAvailable
+    extends AbstractHandlerBehaviour
+    implements VlanQuery {
+
+    private static final int MAX_VLAN_ID = VlanId.MAX_VLAN;
+    private static final Set<VlanId> ENTIRE_VLAN = getEntireVlans();
+
+    @Override
+    public Set<VlanId> queryVlanIds(PortNumber port) {
+        return ENTIRE_VLAN;
+    }
+
+    private static Set<VlanId> getEntireVlans() {
+        return IntStream.range(0, MAX_VLAN_ID)
+                .mapToObj(x -> VlanId.vlanId((short) x))
+                .collect(GuavaCollectors.toImmutableSet());
+    }
+
+}