[ONOS-2356] Implementation for PCEP label update message.
Change-Id: I510a9a7c7c868da1fc3d6e2625501f094faf8115
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopUnnumberedIPv4IDTlv.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopUnnumberedIPv4IDTlv.java
new file mode 100644
index 0000000..c8fae0a
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/NexthopUnnumberedIPv4IDTlv.java
@@ -0,0 +1,159 @@
+/*
+ * 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.pcepio.types;
+
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * NexthopUnnumberedIPv4IDTlv provides the next node's ID and Interface ID.
+ */
+public class NexthopUnnumberedIPv4IDTlv implements PcepValueType {
+
+ /*
+ Reference : draft-zhao-pce-pcep-extension-for-pce-controller-01.
+
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type=TBD | Length = 12 |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Node-ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Interface ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ NEXTHOP-UNNUMBERED-IPV4-ID TLV
+
+ */
+ protected static final Logger log = LoggerFactory.getLogger(NexthopUnnumberedIPv4IDTlv.class);
+
+ public static final short TYPE = 1; //to be defined
+ //Length is header + value
+ public static final short LENGTH = 12;
+
+ private final int nodeID;
+ private final int interfaceID;
+
+ /**
+ * constructor to initialize nodeID and interfaceID.
+ *
+ * @param nodeID node ID
+ * @param interfaceID interface ID
+ */
+ public NexthopUnnumberedIPv4IDTlv(int nodeID, int interfaceID) {
+ this.nodeID = nodeID;
+ this.interfaceID = interfaceID;
+ }
+
+ /**
+ * Returns new object of NexthopUnnumberedIPv4IDTlv.
+ *
+ * @param nodeID node ID
+ * @param interfaceID interface ID
+ * @return NexthopUnnumberedIPv4IDTlv
+ */
+ public static NexthopUnnumberedIPv4IDTlv of(int nodeID, int interfaceID) {
+ return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
+ }
+
+ /**
+ * Returns Node Id.
+ *
+ * @return node ID
+ */
+ public int getNodeID() {
+ return nodeID;
+ }
+
+ /**
+ * Returns Interface Id.
+ *
+ * @return interface ID
+ */
+ public int getInterfaceID() {
+ return interfaceID;
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public short getLength() {
+ return LENGTH;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(nodeID, interfaceID);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof NexthopUnnumberedIPv4IDTlv) {
+ NexthopUnnumberedIPv4IDTlv other = (NexthopUnnumberedIPv4IDTlv) obj;
+ return Objects.equals(this.nodeID, other.nodeID) && Objects.equals(this.interfaceID, other.interfaceID);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer c) {
+ int iLenStartIndex = c.writerIndex();
+ c.writeShort(TYPE);
+ c.writeShort(LENGTH);
+
+ c.writeInt(nodeID);
+ c.writeInt(interfaceID);
+
+ return c.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns object of NexthopUnnumberedIPv4IDTlv.
+ *
+ * @param cb type of channel buffer
+ * @return object of NexthopUnnumberedIPv4IDTlv
+ */
+ public static NexthopUnnumberedIPv4IDTlv read(ChannelBuffer cb) {
+ int nodeID = cb.readInt();
+ int interfaceID = cb.readInt();
+ return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH).add("NodeId", nodeID)
+ .add("InterfaceId", interfaceID).toString();
+ }
+}