[Emu] [ONOS-2603] Implement BGP Update Protocol Message and parse all Link State atrributes of Node and Prefix
Change-Id: I51f3cdbf273e7b82d1cccb21c9b2de83aba3a95d
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java
new file mode 100644
index 0000000..52bae46
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/AreaIDTlv.java
@@ -0,0 +1,126 @@
+/*
+ * 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.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides AreaID Tlv which contains opaque value (32 Bit Area-ID).
+ */
+public class AreaIDTlv implements BGPValueType {
+
+ /* Reference :draft-ietf-idr-ls-distribution-11
+ * 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= 514 | Length=4 |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | opaque value (32 Bit Area-ID) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+ protected static final Logger log = LoggerFactory.getLogger(AreaIDTlv.class);
+
+ public static final short TYPE = 514;
+ public static final short LENGTH = 4;
+
+ private final int areaID;
+
+ /**
+ * Constructor to initialize areaID.
+ *
+ * @param areaID of BGP AreaID Tlv
+ */
+ public AreaIDTlv(int areaID) {
+ this.areaID = areaID;
+ }
+
+ /**
+ * Returns object of this class with specified areaID.
+ *
+ * @param areaID opaque value of area id
+ * @return object of AreaIDTlv
+ */
+ public static AreaIDTlv of(final int areaID) {
+ return new AreaIDTlv(areaID);
+ }
+
+ /**
+ * Returns opaque value of area id.
+ *
+ * @return opaque value of area id
+ */
+ public int getAreaID() {
+ return areaID;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(areaID);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof AreaIDTlv) {
+ AreaIDTlv other = (AreaIDTlv) obj;
+ return Objects.equals(areaID, other.areaID);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer c) {
+ int iLenStartIndex = c.writerIndex();
+ c.writeShort(TYPE);
+ c.writeShort(LENGTH);
+ c.writeInt(areaID);
+ return c.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns object of AreaIDTlv.
+ *
+ * @param cb ChannelBuffer
+ * @return object of AreaIDTlv
+ */
+ public static AreaIDTlv read(ChannelBuffer cb) {
+ return AreaIDTlv.of(cb.readInt());
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("Type", TYPE)
+ .add("Length", LENGTH)
+ .add("Value", areaID)
+ .toString();
+ }
+}
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