ONOS 2360 Review comments fix on PCEP TE Report message.
Change-Id: I442d3d623e4bbf885a86ac91a5882de226537246
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepTEReportMsgVer1.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepTEReportMsgVer1.java
new file mode 100644
index 0000000..4c38a4c
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepTEReportMsgVer1.java
@@ -0,0 +1,214 @@
+/*
+ * 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.PcepMessageReader;
+import org.onosproject.pcepio.protocol.PcepMessageWriter;
+import org.onosproject.pcepio.protocol.PcepTEObject;
+import org.onosproject.pcepio.protocol.PcepTEReportMsg;
+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;
+
+/*
+ * Provides PCEP TE Report Message.
+ */
+class PcepTEReportMsgVer1 implements PcepTEReportMsg {
+
+ /*
+ * Ref : draft-dhodylee-pce-pcep-te-data-extn-02, section 8.1
+
+ <TERpt Message> ::= <Common Header>
+ <te-report-list>
+ Where:
+ <te-report-list> ::= <TE>[<te-report-list>]
+ */
+
+ private static final Logger log = LoggerFactory.getLogger(PcepTEReportMsgVer1.class);
+ //PACKET_MINIMUM_LENGTH = CommonHeaderLen(4)+TEObjMinLen(12)
+ public static final int PACKET_MINIMUM_LENGTH = 16;
+ public static final PcepType MSG_TYPE = PcepType.TE_REPORT;
+ // <te-report-list>
+ private LinkedList<PcepTEObject> teReportList;
+
+ public static final PcepTEReportMsgVer1.Reader READER = new Reader();
+
+ static class Reader implements PcepMessageReader<PcepTEReportMsg> {
+
+ LinkedList<PcepTEObject> teReportList;
+
+ @Override
+ public PcepTEReportMsg readFrom(ChannelBuffer cb) throws PcepParseException {
+
+ if (cb.readableBytes() < PACKET_MINIMUM_LENGTH) {
+ return null;
+ }
+
+ teReportList = new LinkedList<PcepTEObject>();
+
+ byte version = cb.readByte();
+ version = (byte) (version >> PcepMessageVer1.SHIFT_FLAG);
+ if (version != PcepMessageVer1.PACKET_VERSION) {
+ throw new PcepParseException("Wrong version. Expected=PcepVersion.PCEP_1(1), got=" + version);
+ }
+
+ byte type = cb.readByte();
+ if (type != MSG_TYPE.getType()) {
+ throw new PcepParseException("Wrong type. Expected=PcepType.TE_REPORT(14), 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 state report list
+ parseTEReportList(cb);
+
+ return new PcepTEReportMsgVer1(teReportList);
+ }
+
+ /**
+ * Parse te-report-list.
+ *
+ * @param cb input Channel Buffer
+ * @throws PcepParseException when fails to parse TE Report list.
+ */
+ public void parseTEReportList(ChannelBuffer cb) throws PcepParseException {
+ // <te-report-list> ::= <TE>[<te-report-list>]
+
+ while (0 < cb.readableBytes()) {
+ //store TE objectS
+ if (!teReportList.add(PcepTEObjectVer1.read(cb))) {
+ throw new PcepParseException("Failed to add TE object to TE report list");
+ }
+ }
+ }
+ }
+
+ /**
+ * Constructor to initialize TE Report List.
+ *
+ * @param teReportList list of PCEP TE Object
+ */
+ PcepTEReportMsgVer1(LinkedList<PcepTEObject> teReportList) {
+ this.teReportList = teReportList;
+ }
+
+ static class Builder implements PcepTEReportMsg.Builder {
+ // PCEP TE Report message fields
+ LinkedList<PcepTEObject> teReportList;
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public PcepType getType() {
+ return PcepType.TE_REPORT;
+ }
+
+ @Override
+ public PcepTEReportMsg build() {
+ return new PcepTEReportMsgVer1(this.teReportList);
+ }
+
+ @Override
+ public LinkedList<PcepTEObject> getTEReportList() {
+ return this.teReportList;
+ }
+
+ @Override
+ public Builder setTEReportList(LinkedList<PcepTEObject> ll) {
+ this.teReportList = ll;
+ return this;
+ }
+ }
+
+ @Override
+ public void writeTo(ChannelBuffer bb) throws PcepParseException {
+ WRITER.write(bb, this);
+ }
+
+ static final Writer WRITER = new Writer();
+
+ static class Writer implements PcepMessageWriter<PcepTEReportMsgVer1> {
+
+ @Override
+ public void write(ChannelBuffer bb, PcepTEReportMsgVer1 message) throws PcepParseException {
+
+ int startIndex = bb.writerIndex();
+
+ // first 3 bits set to version
+ bb.writeByte((byte) (PcepMessageVer1.PACKET_VERSION << PcepMessageVer1.SHIFT_FLAG));
+
+ // message type
+ bb.writeByte(MSG_TYPE.getType());
+
+ // Length of the message will be updated at the end
+ // First write with 0s
+ int msgLenIndex = bb.writerIndex();
+ bb.writeShort((short) 0);
+
+ ListIterator<PcepTEObject> listIterator = message.teReportList.listIterator();
+
+ while (listIterator.hasNext()) {
+ PcepTEObject teObj = listIterator.next();
+ teObj.write(bb);
+ }
+
+ // update message length field
+ int length = bb.writerIndex() - startIndex;
+ bb.setShort(msgLenIndex, (short) length);
+ }
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public PcepType getType() {
+ return MSG_TYPE;
+ }
+
+ @Override
+ public LinkedList<PcepTEObject> getTEReportList() {
+ return this.teReportList;
+ }
+
+ @Override
+ public void setTEReportList(LinkedList<PcepTEObject> ll) {
+ this.teReportList = ll;
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass()).add("TeReportList", teReportList).toString();
+ }
+}