[Emu] [ONOS-2602]Implement BGP Update Protocol Message Mpreach and MPunreach parse and decode(Node, Link and Prefix)
Change-Id: Idba57626625cd1207b2b0fbddd39214faca337b6
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java
new file mode 100644
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+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/IPv6AddressTlv.java
@@ -0,0 +1,128 @@
+/*
+ * 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.bgpio.types;
+
+import java.net.InetAddress;
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onlab.packet.Ip6Address;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Preconditions;
+
+/**
+ * Provides Implementation of IPv6AddressTlv.
+ */
+public class IPv6AddressTlv implements BGPValueType {
+ private static final Logger log = LoggerFactory.getLogger(IPv6AddressTlv.class);
+ private static final int LENGTH = 16;
+
+ private final Ip6Address address;
+ private short type;
+
+ /**
+ * Constructor to initialize parameters.
+ *
+ * @param address Ipv6 address of interface/neighbor
+ * @param type address type
+ */
+ public IPv6AddressTlv(Ip6Address address, short type) {
+ this.address = Preconditions.checkNotNull(address);
+ this.type = type;
+ }
+
+ /**
+ * Returns Ipv6 address of interface/neighbor.
+ *
+ * @return Ipv6 address of interface/neighbor
+ */
+ public Ip6Address getValue() {
+ return address;
+ }
+
+ @Override
+ public short getType() {
+ return type;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(address);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof IPv6AddressTlv) {
+ IPv6AddressTlv other = (IPv6AddressTlv) obj;
+ return Objects.equals(this.address, other.address) && Objects.equals(this.type, other.type);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) {
+ int iLenStartIndex = cb.writerIndex();
+ cb.writeShort(type);
+ cb.writeShort(LENGTH);
+ cb.writeBytes(address.toOctets());
+ return cb.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns object of IPv6AddressTlv.
+ *
+ * @param cb channelBuffer
+ * @param type address type
+ * @return object of IPv6AddressTlv
+ * @throws BGPParseException while parsing IPv6AddressTlv
+ */
+ public static IPv6AddressTlv read(ChannelBuffer cb, short type) throws BGPParseException {
+ //TODO: use Validation.toInetAddress once Validation is merged
+ InetAddress ipAddress = (InetAddress) cb.readBytes(LENGTH);
+ if (ipAddress.isMulticastAddress()) {
+ throw new BGPParseException(BGPErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null);
+ }
+ Ip6Address address = Ip6Address.valueOf(ipAddress);
+ return IPv6AddressTlv.of(address, type);
+ }
+
+ /**
+ * Returns object of this class with specified values.
+ *
+ * @param address Ipv6 interface/neighbor address
+ * @param type says Ipv6 address of interface/neighbor tlv type
+ * @return object of this class
+ */
+ public static IPv6AddressTlv of(final Ip6Address address , final short type) {
+ return new IPv6AddressTlv(address, type);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("type", type)
+ .add("LENGTH", LENGTH)
+ .add("address", address)
+ .toString();
+ }
+}
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