[ONOS-2831] Refactor L2 code according to the L3 plan.
Change-Id: Ibc9dc47a18208b9b1602261064a33bc63b131fc3
diff --git a/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnData.java b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnData.java
new file mode 100644
index 0000000..a8562e7
--- /dev/null
+++ b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnData.java
@@ -0,0 +1,97 @@
+/*
+ * 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.vtn.util;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.collect.Sets;
+
+/**
+ * VtnData utility class.
+ */
+public final class VtnData {
+
+ private static final Logger log = LoggerFactory.getLogger(VtnData.class);
+ private static final String SWITCH_CHANNEL_ID = "channelId";
+ private static final String PORT_HEAD = "vxlan";
+
+ /**
+ * Constructs a VtnData object. Utility classes should not have a public or
+ * default constructor, otherwise IDE will compile unsuccessfully. This
+ * class should not be instantiated.
+ */
+ private VtnData() {
+ }
+
+ /**
+ * Get the ControllerIp from the device .
+ *
+ * @param device Device
+ * @return Controller Ip
+ */
+ public static String getControllerIpOfSwitch(Device device) {
+ String url = device.annotations().value(SWITCH_CHANNEL_ID);
+ return url.substring(0, url.lastIndexOf(":"));
+ }
+
+ /**
+ * Get the ControllerId from the device .
+ *
+ * @param device Device
+ * @param devices Devices
+ * @return Controller Id
+ */
+ public static DeviceId getControllerId(Device device,
+ Iterable<Device> devices) {
+ for (Device d : devices) {
+ if (d.type() == Device.Type.CONTROLLER && d.id().toString()
+ .contains(getControllerIpOfSwitch(device))) {
+ return d.id();
+ }
+ }
+ log.info("Can not find controller for device : {}", device.id());
+ return null;
+ }
+
+ /**
+ * Get local tunnel ports.
+ *
+ * @param ports Iterable of Port
+ * @return Collection of PortNumber
+ */
+ public static Collection<PortNumber> getLocalTunnelPorts(Iterable<Port> ports) {
+ Collection<PortNumber> localTunnelPorts = new ArrayList<>();
+ Sets.newHashSet(ports).stream()
+ .filter(p -> !p.number().equals(PortNumber.LOCAL))
+ .forEach(p -> {
+ if (p.annotations().value(AnnotationKeys.PORT_NAME)
+ .startsWith(PORT_HEAD)) {
+ localTunnelPorts.add(p.number());
+ }
+ });
+ return localTunnelPorts;
+ }
+
+}