[ONOS-2359]Implementation of PCEP LabelReserve message
Change-Id: Ie74340f5fe5e93d9bb277dd3551ba175ac74494c
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeObjectVer1.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeObjectVer1.java
new file mode 100644
index 0000000..fce29a1
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeObjectVer1.java
@@ -0,0 +1,370 @@
+/*
+ * 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.protocol.ver1;
+
+import java.util.LinkedList;
+import java.util.ListIterator;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepLabelRangeObject;
+import org.onosproject.pcepio.types.PathSetupTypeTlv;
+import org.onosproject.pcepio.types.PcepObjectHeader;
+import org.onosproject.pcepio.types.PcepValueType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+public class PcepLabelRangeObjectVer1 implements PcepLabelRangeObject {
+
+ /*
+ * ref : draft-zhao-pce-pcep-extension-for-pce-controller-01, section : 7.2
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | label type | range size |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | label base |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ // Optional TLVs //
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ LABEL-RANGE Object
+ */
+ protected static final Logger log = LoggerFactory.getLogger(PcepLabelRangeObjectVer1.class);
+
+ public static final byte LABEL_RANGE_OBJ_TYPE = 1;
+ public static final byte LABEL_RANGE_OBJ_CLASS = 60; //to be defined
+ public static final byte LABEL_RANGE_OBJECT_VERSION = 1;
+ public static final short LABEL_RANGE_OBJ_MINIMUM_LENGTH = 12;
+ public static final int MINIMUM_COMMON_HEADER_LENGTH = 4;
+ //P flag and I flag must be set to 0
+ static final PcepObjectHeader DEFAULT_LABELRANGE_OBJECT_HEADER = new PcepObjectHeader(LABEL_RANGE_OBJ_CLASS,
+ LABEL_RANGE_OBJ_TYPE, PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED,
+ LABEL_RANGE_OBJ_MINIMUM_LENGTH);
+
+ private PcepObjectHeader labelRangeObjHeader;
+ private byte labelType;
+ private int rangeSize;
+ private int labelBase;
+ //Optional TLV
+ private LinkedList<PcepValueType> llOptionalTlv;
+
+ /**
+ * Constructor to initialize parameters for PCEP label range object.
+ *
+ * @param labelRangeObjHeader label range object header
+ * @param labelType label type
+ * @param rangeSize range size
+ * @param labelBase label base
+ * @param llOptionalTlv list of optional tlvs
+ */
+ public PcepLabelRangeObjectVer1(PcepObjectHeader labelRangeObjHeader, byte labelType, int rangeSize, int labelBase,
+ LinkedList<PcepValueType> llOptionalTlv) {
+ this.labelRangeObjHeader = labelRangeObjHeader;
+ this.labelType = labelType;
+ this.rangeSize = rangeSize;
+ this.llOptionalTlv = llOptionalTlv;
+ this.labelBase = labelBase;
+ }
+
+ @Override
+ public void setLabelRangeObjHeader(PcepObjectHeader obj) {
+ this.labelRangeObjHeader = obj;
+ }
+
+ @Override
+ public void setLabelType(byte labelType) {
+ this.labelType = labelType;
+ }
+
+ @Override
+ public void setRangeSize(int rangeSize) {
+ this.rangeSize = rangeSize;
+ }
+
+ @Override
+ public void setLabelBase(int labelBase) {
+ this.labelBase = labelBase;
+ }
+
+ @Override
+ public PcepObjectHeader getLabelRangeObjHeader() {
+ return this.labelRangeObjHeader;
+ }
+
+ @Override
+ public byte getLabelType() {
+ return this.labelType;
+ }
+
+ @Override
+ public int getRangeSize() {
+ return this.rangeSize;
+ }
+
+ @Override
+ public int getLabelBase() {
+ return this.labelBase;
+ }
+
+ /**
+ * Reads from the channel buffer and returns object of PcepLabelRangeObject.
+ *
+ * @param cb of type channel buffer
+ * @return object of PcepLabelRangeObject
+ * @throws PcepParseException when fails to read from channel buffer
+ */
+ public static PcepLabelRangeObject read(ChannelBuffer cb) throws PcepParseException {
+
+ PcepObjectHeader labelRangeObjHeader;
+ byte labelType;
+ int rangeSize;
+ int labelBase;
+
+ LinkedList<PcepValueType> llOptionalTlv = new LinkedList<PcepValueType>();
+
+ labelRangeObjHeader = PcepObjectHeader.read(cb);
+
+ //take only LabelRangeObject buffer.
+ ChannelBuffer tempCb = cb.readBytes(labelRangeObjHeader.getObjLen() - MINIMUM_COMMON_HEADER_LENGTH);
+ int temp = 0;
+ temp = tempCb.readInt();
+ rangeSize = temp & 0x00FFFFFF;
+ labelType = (byte) (temp >> 24);
+ labelBase = tempCb.readInt();
+ llOptionalTlv = parseOptionalTlv(tempCb);
+ return new PcepLabelRangeObjectVer1(labelRangeObjHeader, labelType, rangeSize, labelBase, llOptionalTlv);
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) throws PcepParseException {
+
+ int objStartIndex = cb.writerIndex();
+
+ //write common header
+ int objLenIndex = labelRangeObjHeader.write(cb);
+ int temp = 0;
+ temp = labelType;
+ temp = temp << 24;
+ temp = temp | rangeSize;
+ cb.writeInt(temp);
+
+ // Add optional TLV
+ if (!packOptionalTlv(cb)) {
+ throw new PcepParseException("Error while writing Optional tlv.");
+ }
+
+ //now write LabelRange Object Length
+ cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex));
+ return cb.writerIndex() - objStartIndex;
+ }
+
+ /**
+ * Returns list of optional tlvs.
+ *
+ * @param cb of type channle buffer
+ * @return list of optional tlvs
+ * @throws PcepParseException whne fails to parse list of optional tlvs
+ */
+ public static LinkedList<PcepValueType> parseOptionalTlv(ChannelBuffer cb) throws PcepParseException {
+
+ LinkedList<PcepValueType> llOutOptionalTlv = new LinkedList<PcepValueType>();
+
+ while (MINIMUM_COMMON_HEADER_LENGTH <= cb.readableBytes()) {
+
+ PcepValueType tlv;
+ int iValue;
+ short hType = cb.readShort();
+ short hLength = cb.readShort();
+
+ switch (hType) {
+
+ case PathSetupTypeTlv.TYPE:
+ iValue = cb.readInt();
+ tlv = new PathSetupTypeTlv(iValue);
+ break;
+
+ default:
+ throw new PcepParseException("Unsupported TLV in LabelRange Object.");
+ }
+
+ // Check for the padding
+ int pad = hLength % 4;
+ if (0 < pad) {
+ pad = 4 - pad;
+ if (pad <= cb.readableBytes()) {
+ cb.skipBytes(pad);
+ }
+ }
+ llOutOptionalTlv.add(tlv);
+ }
+ return llOutOptionalTlv;
+ }
+
+ /**
+ * Pack optional tlvs.
+ *
+ * @param cb of channel buffer
+ * @return true
+ */
+ protected boolean packOptionalTlv(ChannelBuffer cb) {
+
+ ListIterator<PcepValueType> listIterator = llOptionalTlv.listIterator();
+
+ while (listIterator.hasNext()) {
+ PcepValueType tlv = listIterator.next();
+
+ if (null == tlv) {
+ log.debug("tlv is null from OptionalTlv list");
+ continue;
+ }
+ tlv.write(cb);
+
+ // need to take care of padding
+ int pad = tlv.getLength() % 4;
+ if (0 != pad) {
+ pad = 4 - pad;
+ for (int i = 0; i < pad; ++i) {
+ cb.writeByte((byte) 0);
+ }
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Builder class for PCEP label range object.
+ */
+ public static class Builder implements PcepLabelRangeObject.Builder {
+ private boolean bIsHeaderSet = false;
+ private boolean bIsLabelType = false;
+ private boolean bIsRangeSize = false;
+ private boolean bIsLabelBase = false;
+
+ byte labelType;
+ int rangeSize;
+ int labelBase;
+ private boolean bIsPFlagSet = false;
+ private boolean bPFlag;
+
+ private boolean bIsIFlagSet = false;
+ private boolean bIFlag;
+ private PcepObjectHeader labelRangeObjHeader;
+
+ LinkedList<PcepValueType> llOptionalTlv = new LinkedList<PcepValueType>();
+
+ @Override
+ public PcepLabelRangeObject build() throws PcepParseException {
+ PcepObjectHeader labelRangeObjHeader = this.bIsHeaderSet ? this.labelRangeObjHeader
+ : DEFAULT_LABELRANGE_OBJECT_HEADER;
+
+ if (!this.bIsLabelType) {
+ throw new PcepParseException("LabelType NOT Set while building label range object.");
+ }
+
+ if (!this.bIsRangeSize) {
+ throw new PcepParseException("RangeSize NOT Set while building label range object.");
+ }
+
+ if (!this.bIsLabelBase) {
+ throw new PcepParseException("LabelBase NOT Set while building label range object.");
+ }
+
+ if (bIsPFlagSet) {
+ labelRangeObjHeader.setPFlag(bPFlag);
+ }
+
+ if (bIsIFlagSet) {
+ labelRangeObjHeader.setIFlag(bIFlag);
+ }
+ return new PcepLabelRangeObjectVer1(labelRangeObjHeader, this.labelType, this.rangeSize, this.labelBase,
+ this.llOptionalTlv);
+ }
+
+ @Override
+ public PcepObjectHeader getLabelRangeObjHeader() {
+ return this.labelRangeObjHeader;
+ }
+
+ @Override
+ public Builder setLabelRangeObjHeader(PcepObjectHeader obj) {
+ this.labelRangeObjHeader = obj;
+ this.bIsHeaderSet = true;
+ return this;
+ }
+
+ @Override
+ public byte getLabelType() {
+ return this.labelType;
+ }
+
+ @Override
+ public Builder setLabelType(byte labelType) {
+ this.labelType = labelType;
+ this.bIsLabelType = true;
+ return this;
+ }
+
+ @Override
+ public int getRangeSize() {
+ return this.rangeSize;
+ }
+
+ @Override
+ public Builder setRangeSize(int rangeSize) {
+ this.rangeSize = rangeSize;
+ this.bIsRangeSize = true;
+ return this;
+ }
+
+ @Override
+ public int getLabelBase() {
+ return this.labelBase;
+ }
+
+ @Override
+ public Builder setLabelBase(int labelBase) {
+ this.labelBase = labelBase;
+ this.bIsLabelBase = true;
+ return this;
+ }
+
+ @Override
+ public Builder setPFlag(boolean value) {
+ this.bPFlag = value;
+ this.bIsPFlagSet = true;
+ return this;
+ }
+
+ @Override
+ public Builder setIFlag(boolean value) {
+ this.bIFlag = value;
+ this.bIsIFlagSet = true;
+ return this;
+ }
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("LabelType", labelType).add("rangeSize", rangeSize)
+ .add("labelBase", labelBase).add("optionalTlvList", llOptionalTlv).toString();
+ }
+}
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java
new file mode 100644
index 0000000..2b6b9c8
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeResvMsgVer1.java
@@ -0,0 +1,189 @@
+/*
+ * 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.protocol.ver1;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepLabelRange;
+import org.onosproject.pcepio.protocol.PcepLabelRangeResvMsg;
+import org.onosproject.pcepio.protocol.PcepMessageReader;
+import org.onosproject.pcepio.protocol.PcepMessageWriter;
+import org.onosproject.pcepio.protocol.PcepType;
+import org.onosproject.pcepio.protocol.PcepVersion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+class PcepLabelRangeResvMsgVer1 implements PcepLabelRangeResvMsg {
+
+ // Pcep version: 1
+
+ /*
+ The format of a PCLRResv message is as follows:
+
+ PCLRResv Message>::= <Common Header>
+ <label-range>
+ Where:
+
+ <label-range> ::= <SRP>
+ <labelrange-list>
+
+ Where
+ <labelrange-list>::=<LABEL-RANGE>[<labelrange-list>]
+ */
+ protected static final Logger log = LoggerFactory.getLogger(PcepLabelRangeResvMsgVer1.class);
+
+ public static final byte PACKET_VERSION = 1;
+ // LabelRangeResvMsgMinLength = COMMON-HEADER(4)+SrpObjMinLentgh(12)+LABEL-RANGE-MIN-LENGTH(12)
+ public static final int PACKET_MINIMUM_LENGTH = 28;
+ public static final PcepType MSG_TYPE = PcepType.LABEL_RANGE_RESERV;
+ //<label-range>
+ PcepLabelRange labelRange;
+
+ public static final PcepLabelRangeResvMsgVer1.Reader READER = new Reader();
+
+ //Reader reads LabelRangeResv Message from the channel.
+ static class Reader implements PcepMessageReader<PcepLabelRangeResvMsg> {
+
+ @Override
+ public PcepLabelRangeResvMsg readFrom(ChannelBuffer cb) throws PcepParseException {
+
+ if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) {
+ throw new PcepParseException("Channel buffer has less readable bytes than Packet minimum length.");
+ }
+ // fixed value property version == 1
+ byte version = cb.readByte();
+ version = (byte) (version >> PcepMessageVer1.SHIFT_FLAG);
+ if (version != PACKET_VERSION) {
+ throw new PcepParseException("Wrong version. Expected=PcepVersion.PCEP_1(1), got=" + version);
+ }
+ // fixed value property type == 15
+ byte type = cb.readByte();
+ if (type != MSG_TYPE.getType()) {
+ throw new PcepParseException("Wrong type. Expected=PcepType.LABEL_RANGE_RESERV(15), got=" + type);
+ }
+ short length = cb.readShort();
+ if (length < PACKET_MINIMUM_LENGTH) {
+ throw new PcepParseException("Wrong length.Expected to be >= " + PACKET_MINIMUM_LENGTH + ", is: "
+ + length);
+ }
+ // parse <label-range>
+ PcepLabelRange labelRange = PcepLabelRangeVer1.read(cb);
+ return new PcepLabelRangeResvMsgVer1(labelRange);
+ }
+ }
+
+ /**
+ * Constructor to initialize PCEP label range.
+ *
+ * @param labelRange PCEP label range
+ */
+ PcepLabelRangeResvMsgVer1(PcepLabelRange labelRange) {
+ this.labelRange = labelRange;
+ }
+
+ /**
+ * Builder class for PCEP label range reserve message.
+ */
+ static class Builder implements PcepLabelRangeResvMsg.Builder {
+
+ PcepLabelRange labelRange = new PcepLabelRangeVer1();
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public PcepType getType() {
+ return PcepType.LABEL_RANGE_RESERV;
+ }
+
+ @Override
+ public PcepLabelRangeResvMsg build() {
+ return new PcepLabelRangeResvMsgVer1(this.labelRange);
+ }
+
+ @Override
+ public PcepLabelRange getLabelRange() {
+ return this.labelRange;
+ }
+
+ @Override
+ public Builder setLabelRange(PcepLabelRange labelRange) {
+ this.labelRange = labelRange;
+ return this;
+ }
+ }
+
+ @Override
+ public void writeTo(ChannelBuffer cb) throws PcepParseException {
+ WRITER.write(cb, this);
+ }
+
+ static final Writer WRITER = new Writer();
+
+ //Writer writes LabelRangeResv Message to the channel.
+ static class Writer implements PcepMessageWriter<PcepLabelRangeResvMsgVer1> {
+
+ @Override
+ public void write(ChannelBuffer cb, PcepLabelRangeResvMsgVer1 message) throws PcepParseException {
+
+ int startIndex = cb.writerIndex();
+ // first 3 bits set to version
+ cb.writeByte((byte) (PACKET_VERSION << PcepMessageVer1.SHIFT_FLAG));
+ // message type
+ cb.writeByte(MSG_TYPE.getType());
+ // Length will be set after calculating length, but currently set it as 0.
+ int msgLenIndex = cb.writerIndex();
+
+ cb.writeShort((short) 0);
+ //write Label Range
+ message.labelRange.write(cb);
+
+ // update message length field
+ int length = cb.writerIndex() - startIndex;
+ cb.setShort(msgLenIndex, (short) length);
+ }
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public PcepType getType() {
+ return MSG_TYPE;
+ }
+
+ @Override
+ public PcepLabelRange getLabelRange() {
+ return this.labelRange;
+ }
+
+ @Override
+ public void setLabelRange(PcepLabelRange lr) {
+ this.labelRange = lr;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("labelRange", labelRange).toString();
+ }
+}
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeVer1.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeVer1.java
new file mode 100644
index 0000000..f2498ae
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepLabelRangeVer1.java
@@ -0,0 +1,166 @@
+/*
+ * 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.protocol.ver1;
+
+import java.util.LinkedList;
+import java.util.ListIterator;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.pcepio.exceptions.PcepParseException;
+import org.onosproject.pcepio.protocol.PcepLabelRange;
+import org.onosproject.pcepio.protocol.PcepLabelRangeObject;
+import org.onosproject.pcepio.protocol.PcepSrpObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Provides PCEP Label Range.
+ */
+public class PcepLabelRangeVer1 implements PcepLabelRange {
+
+ protected static final Logger log = LoggerFactory.getLogger(PcepLabelRangeVer1.class);
+
+ /*
+ <label-range> ::= <SRP>
+ <labelrange-list>
+ Where
+ <labelrange-list>::=<LABEL-RANGE>[<labelrange-list>]
+ */
+
+ // PCEP SRP Object
+ private PcepSrpObject srpObject;
+ //<labelrange-list> of type PcepLabelRangeObject.
+ private LinkedList<PcepLabelRangeObject> llLabelRangeList;
+
+ /**
+ * Default Constructor.
+ */
+ public PcepLabelRangeVer1() {
+ srpObject = null;
+ llLabelRangeList = null;
+ }
+
+ /**
+ * Constructor to initialize objects.
+ *
+ * @param srpObj PCEP Srp object.
+ * @param llLabelRangeList list of PcepLabelRangeObject.
+ */
+ PcepLabelRangeVer1(PcepSrpObject srpObj, LinkedList<PcepLabelRangeObject> llLabelRangeList) {
+ this.srpObject = srpObj;
+ this.llLabelRangeList = llLabelRangeList;
+ }
+
+ @Override
+ public PcepSrpObject getSrpObject() {
+ return srpObject;
+ }
+
+ @Override
+ public void setSrpObject(PcepSrpObject srpObject) {
+ this.srpObject = srpObject;
+
+ }
+
+ @Override
+ public LinkedList<PcepLabelRangeObject> getLabelRangeList() {
+ return llLabelRangeList;
+ }
+
+ @Override
+ public void setLabelRangeList(LinkedList<PcepLabelRangeObject> ll) {
+ this.llLabelRangeList = ll;
+ }
+
+ /**
+ * Reads channel buffer and returns object of PcepLabelRange.
+ *
+ * @param cb of type channel buffer.
+ * @return object of PcepLabelRange
+ * @throws PcepParseException when fails to read from channel buffer
+ */
+ public static PcepLabelRange read(ChannelBuffer cb) throws PcepParseException {
+
+ //parse and store SRP mandatory object
+ PcepSrpObject srpObj = null;
+ srpObj = PcepSrpObjectVer1.read(cb);
+ if (srpObj == null) {
+ throw new PcepParseException("Exception while parsing srp object");
+ }
+
+ LinkedList<PcepLabelRangeObject> llLabelRangeList = new LinkedList<PcepLabelRangeObject>();
+ boolean bFoundLabelRangeObj = false;
+ while (0 < cb.readableBytes()) {
+ //parse and store <labelrange-list>
+ PcepLabelRangeObject lrObj;
+ lrObj = PcepLabelRangeObjectVer1.read(cb);
+ if (lrObj == null) {
+ throw new PcepParseException("Exception while parsing label range object");
+ } else {
+ llLabelRangeList.add(lrObj);
+ bFoundLabelRangeObj = true;
+ }
+ }
+
+ if (!bFoundLabelRangeObj) {
+ throw new PcepParseException("At least one LABEL-RANGE MUST be present.");
+ }
+ return new PcepLabelRangeVer1(srpObj, llLabelRangeList);
+ }
+
+ @Override
+ public int write(ChannelBuffer cb) throws PcepParseException {
+ //write Object header
+ int objStartIndex = cb.writerIndex();
+
+ //write <SRP>
+ int objLenIndex = srpObject.write(cb);
+
+ if (objLenIndex <= 0) {
+ throw new PcepParseException("bjectLength is " + objLenIndex);
+ }
+
+ //write <labelrange-list>
+ ListIterator<PcepLabelRangeObject> listIterator = llLabelRangeList.listIterator();
+ while (listIterator.hasNext()) {
+ listIterator.next().write(cb);
+ }
+
+ //Update object length now
+ int length = cb.writerIndex() - objStartIndex;
+ // As per RFC the length of object should be
+ // multiples of 4
+ int pad = length % 4;
+ if (pad != 0) {
+ pad = 4 - pad;
+ for (int i = 0; i < pad; i++) {
+ cb.writeByte((byte) 0);
+ }
+ length = length + pad;
+ }
+ cb.setShort(objLenIndex, (short) length);
+ return length;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("srpObject", srpObject)
+ .add("LabelRangeList", llLabelRangeList).toString();
+ }
+}
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathSetupTypeTlv.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathSetupTypeTlv.java
new file mode 100644
index 0000000..19e2b5b
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathSetupTypeTlv.java
@@ -0,0 +1,146 @@
+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;
+
+/**
+ * Provides PcepSetup type tlv.
+ */
+public class PathSetupTypeTlv implements PcepValueType {
+
+ /*
+ Reference : draft-sivabalan-pce-lsp-setup-type-02.
+
+ 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 | Length |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Reserved | PST |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Figure 1: PATH-SETUP-TYPE TLV
+
+ */
+ protected static final Logger log = LoggerFactory.getLogger(PathSetupTypeTlv.class);
+
+ public static final short TYPE = 0; //TODO : need to reassign the value as per RFC
+ public static final short LENGTH = 4;
+
+ private final byte pst;
+ private final int rawValue;
+ private final boolean isRawValueSet;
+
+ /**
+ * Constructor to initialize parameters for path setup type tlv.
+ *
+ * @param rawValue parameter for path setup type tlv
+ */
+ public PathSetupTypeTlv(final int rawValue) {
+ this.rawValue = rawValue;
+ this.isRawValueSet = true;
+ this.pst = (byte) rawValue;
+ }
+
+ /**
+ * Constructor to initialize pst.
+ *
+ * @param pst PST
+ */
+ public PathSetupTypeTlv(byte pst) {
+ this.pst = pst;
+ this.rawValue = 0;
+ this.isRawValueSet = false;
+ }
+
+ /**
+ * Returns Object of path setup type tlv.
+ *
+ * @param raw parameter for path setup type tlv
+ * @return object of PathSetupTypeTlv
+ */
+ public static PathSetupTypeTlv of(final int raw) {
+ return new PathSetupTypeTlv(raw);
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ /**
+ * Returns parameters for path setup type tlv.
+ *
+ * @return parameters for path setup type tlv
+ */
+ public int getInt() {
+ return rawValue;
+ }
+
+ /**
+ * Returns the pst value.
+ *
+ * @return pst value
+ */
+ public byte getPst() {
+ return pst;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public short getLength() {
+ return LENGTH;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(pst);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof PathSetupTypeTlv) {
+ PathSetupTypeTlv other = (PathSetupTypeTlv) obj;
+ return Objects.equals(this.pst, other.pst);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer c) {
+ int iLenStartIndex = c.writerIndex();
+ c.writeShort(TYPE);
+ c.writeShort(LENGTH);
+ c.writeInt(pst);
+ return c.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Returns the object of type PathSetupTypeTlv.
+ *
+ * @param c is type Channel buffer
+ * @return object of PathSetupTypeTlv
+ */
+ public static PathSetupTypeTlv read(ChannelBuffer c) {
+ return PathSetupTypeTlv.of(c.readInt());
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH).add("PST", pst)
+ .toString();
+ }
+}