Rename from TLV to Tlv to make renaming consistent with others
Change-Id: I1bbf91b9ac1ef6c3e64676301a4c178725c09442
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/LocalTENodeDescriptorsTlv.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/LocalTENodeDescriptorsTlv.java
new file mode 100644
index 0000000..6f84524
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/LocalTENodeDescriptorsTlv.java
@@ -0,0 +1,243 @@
+/*
+ * 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.Iterator;
+import java.util.LinkedList;
+import java.util.ListIterator;
+import java.util.Objects;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides Local TE Node Descriptors TLV which contains Node Descriptor Sub-TLVs.
+ */
+public class LocalTENodeDescriptorsTlv implements PcepValueType {
+
+ /* REFERENCE :draft-ietf-idr-ls-distribution-10
+ * 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=[TBD8] | Length |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ // Node Descriptor Sub-TLVs (variable) //
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ Note: Length is including header here. Refer Routing Universe TLV.
+ */
+
+ protected static final Logger log = LoggerFactory.getLogger(LocalTENodeDescriptorsTlv.class);
+
+ public static final short TYPE = 1637; //TODD:change this TBD8
+ public short hLength;
+
+ public static final int TLV_HEADER_LENGTH = 4;
+ // Node Descriptor Sub-TLVs (variable)
+ private LinkedList<PcepValueType> llNodeDescriptorSubTLVs;
+
+ /**
+ * Constructor to initialize llNodeDescriptorSubTLVs.
+ *
+ * @param llNodeDescriptorSubTLVs LinkedList of PcepValueType
+ */
+ public LocalTENodeDescriptorsTlv(LinkedList<PcepValueType> llNodeDescriptorSubTLVs) {
+ this.llNodeDescriptorSubTLVs = llNodeDescriptorSubTLVs;
+ }
+
+ /**
+ * Returns a new object of LocalTENodeDescriptorsTLV.
+ *
+ * @param llNodeDescriptorSubTLVs linked list of Node Descriptor Sub TLVs
+ * @return object of LocalTENodeDescriptorsTLV
+ */
+ public static LocalTENodeDescriptorsTlv of(final LinkedList<PcepValueType> llNodeDescriptorSubTLVs) {
+ return new LocalTENodeDescriptorsTlv(llNodeDescriptorSubTLVs);
+ }
+
+ /**
+ * Returns Linked List of tlvs.
+ *
+ * @return llNodeDescriptorSubTLVs linked list of Node Descriptor Sub TLV
+ */
+ public LinkedList<PcepValueType> getllNodeDescriptorSubTLVs() {
+ return llNodeDescriptorSubTLVs;
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public short getLength() {
+ return hLength;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(llNodeDescriptorSubTLVs.hashCode());
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ /*
+ * Here we have a list of Tlv so to compare each sub tlv between the object
+ * we have to take a list iterator so one by one we can get each sub tlv object
+ * and can compare them.
+ * it may be possible that the size of 2 lists is not equal so we have to first check
+ * the size, if both are same then we should check for the subtlv objects otherwise
+ * we should return false.
+ */
+ if (obj instanceof LocalTENodeDescriptorsTlv) {
+ int countObjSubTlv = 0;
+ int countOtherSubTlv = 0;
+ boolean isCommonSubTlv = true;
+ LocalTENodeDescriptorsTlv other = (LocalTENodeDescriptorsTlv) obj;
+ Iterator<PcepValueType> objListIterator = ((LocalTENodeDescriptorsTlv) obj).llNodeDescriptorSubTLVs
+ .iterator();
+ countObjSubTlv = ((LocalTENodeDescriptorsTlv) obj).llNodeDescriptorSubTLVs.size();
+ countOtherSubTlv = other.llNodeDescriptorSubTLVs.size();
+ if (countObjSubTlv != countOtherSubTlv) {
+ return false;
+ } else {
+ while (objListIterator.hasNext() && isCommonSubTlv) {
+ PcepValueType subTlv = objListIterator.next();
+ isCommonSubTlv = Objects.equals(llNodeDescriptorSubTLVs.contains(subTlv),
+ other.llNodeDescriptorSubTLVs.contains(subTlv));
+ }
+ return isCommonSubTlv;
+ }
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer c) {
+ int tlvStartIndex = c.writerIndex();
+ c.writeShort(TYPE);
+ int tlvLenIndex = c.writerIndex();
+ hLength = 0;
+ c.writeShort(0);
+
+ ListIterator<PcepValueType> listIterator = llNodeDescriptorSubTLVs.listIterator();
+
+ while (listIterator.hasNext()) {
+ PcepValueType tlv = listIterator.next();
+ if (tlv == null) {
+ log.debug("TLV is null from subTlv list");
+ continue;
+ }
+ tlv.write(c);
+
+ // need to take care of padding
+ int pad = tlv.getLength() % 4;
+
+ if (0 != pad) {
+ pad = 4 - pad;
+ for (int i = 0; i < pad; ++i) {
+ c.writeByte((byte) 0);
+ }
+ }
+ }
+ hLength = (short) (c.writerIndex() - tlvStartIndex);
+ c.setShort(tlvLenIndex, (hLength - TLV_HEADER_LENGTH));
+ return c.writerIndex() - tlvStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns object of AutonomousSystemTlv.
+ *
+ * @param c input channel buffer
+ * @param hLength length of subtlvs.
+ * @return object of AutonomousSystemTlv
+ * @throws PcepParseException if mandatory fields are missing
+ */
+ public static PcepValueType read(ChannelBuffer c, short hLength) throws PcepParseException {
+
+ // Node Descriptor Sub-TLVs (variable)
+ LinkedList<PcepValueType> llNodeDescriptorSubTLVs = new LinkedList<PcepValueType>();
+
+ ChannelBuffer tempCb = c.readBytes(hLength);
+
+ while (TLV_HEADER_LENGTH <= tempCb.readableBytes()) {
+
+ PcepValueType tlv;
+ short hType = tempCb.readShort();
+ int iValue = 0;
+ short length = tempCb.readShort();
+
+ switch (hType) {
+
+ case AutonomousSystemTlv.TYPE:
+ iValue = tempCb.readInt();
+ tlv = new AutonomousSystemTlv(iValue);
+ break;
+ case BGPLSidentifierTlv.TYPE:
+ iValue = tempCb.readInt();
+ tlv = new BGPLSidentifierTlv(iValue);
+ break;
+ case OSPFareaIDsubTlv.TYPE:
+ iValue = tempCb.readInt();
+ tlv = new OSPFareaIDsubTlv(iValue);
+ break;
+ case RouterIDSubTlv.TYPE:
+ tlv = RouterIDSubTlv.read(tempCb, length);
+ break;
+
+ default:
+ throw new PcepParseException("Unsupported Sub TLV type :" + hType);
+ }
+
+ // Check for the padding
+ int pad = length % 4;
+ if (0 < pad) {
+ pad = 4 - pad;
+ if (pad <= tempCb.readableBytes()) {
+ tempCb.skipBytes(pad);
+ }
+ }
+
+ llNodeDescriptorSubTLVs.add(tlv);
+ }
+
+ if (0 < tempCb.readableBytes()) {
+ throw new PcepParseException("Sub Tlv parsing error. Extra bytes received.");
+ }
+ return new LocalTENodeDescriptorsTlv(llNodeDescriptorSubTLVs);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", hLength)
+ .add("NodeDescriptorSubTLVs", llNodeDescriptorSubTLVs).toString();
+ }
+}