ONOS-4082: Packet structures- TLV packet structures
Change-Id: Id67867d215e9e6215854bc35fc435a1b0da9bf3b
diff --git a/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/AreaAddressTlv.java b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/AreaAddressTlv.java
new file mode 100755
index 0000000..df76628
--- /dev/null
+++ b/protocols/isis/isisio/src/main/java/org/onosproject/isis/io/isispacket/tlv/AreaAddressTlv.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2016 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.isis.io.isispacket.tlv;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.primitives.Bytes;
+import io.netty.buffer.ByteBuf;
+import org.onosproject.isis.io.util.IsisUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Represents the area address TLV.
+ */
+public class AreaAddressTlv extends TlvHeader implements IsisTlv {
+
+ private List<String> areaAddress = new ArrayList();
+
+ /**
+ * Sets TLV type and TLV length of area address TLV.
+ *
+ * @param tlvHeader tlvHeader.
+ */
+ public AreaAddressTlv(TlvHeader tlvHeader) {
+
+ this.setTlvType(tlvHeader.tlvType());
+ this.setTlvLength(tlvHeader.tlvLength());
+
+ }
+
+ /**
+ * Gets the area address of area address TLV.
+ *
+ * @return area address
+ */
+ public List<String> areaAddress() {
+ return this.areaAddress;
+ }
+
+ @Override
+ public void readFrom(ByteBuf byteBuf) {
+ while (byteBuf.readableBytes() > 0) {
+ int addressLength = byteBuf.readByte();
+ byte[] addressBytes = new byte[IsisUtil.THREE_BYTES];
+ byteBuf.readBytes(addressBytes, 0, IsisUtil.THREE_BYTES);
+ String areaAddress = IsisUtil.areaAddres(addressBytes);
+ this.areaAddress.add(areaAddress);
+ }
+ }
+
+ @Override
+ public byte[] asBytes() {
+ byte[] bytes = null;
+
+ byte[] tlvHeader = tlvHeaderAsByteArray();
+ byte[] tlvBody = tlvBodyAsBytes();
+ bytes = Bytes.concat(tlvHeader, tlvBody);
+
+ return bytes;
+ }
+
+ /**
+ * Gets TLV body of area address TLV.
+ *
+ * @return byteArray TLV body of area address TLV
+ */
+ public byte[] tlvBodyAsBytes() {
+
+ List<Byte> bytes = new ArrayList();
+ for (String areaAddress : this.areaAddress) {
+ bytes.add((byte) (areaAddress.length() / 2));
+ bytes.addAll(IsisUtil.areaAddresToBytes(areaAddress));
+ }
+ byte[] byteArray = new byte[bytes.size()];
+ int i = 0;
+ for (byte byt : bytes) {
+ byteArray[i++] = byt;
+ }
+ return byteArray;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .omitNullValues()
+ .toString();
+ }
+}
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