Implementation of PcInitate and PcUpdate messages
Change-Id: I746a5860a8b4a8022d747a02075ed3237741c53a
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathKeySubObject.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathKeySubObject.java
new file mode 100644
index 0000000..1a127c1
--- /dev/null
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PathKeySubObject.java
@@ -0,0 +1,167 @@
+/*
+ * 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.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;
+
+/**
+ * Path Key SubObject: When a PCC needs to expand a path-key in order to expand a CPS, it
+ * issues a Path Computation Request (PCReq) to the PCE identified in
+ * the PKS in the RSVP-TE ERO that it is processing. The PCC supplies
+ * the PKS to be expanded in a PATH-KEY SubObject in the PCReq message.
+ */
+public class PathKeySubObject implements PcepValueType {
+
+ /*
+ Pathkey subobject(RFC 5520):
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |L| Type | Length | Path-Key |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | PCE ID (4 bytes) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+ protected static final Logger log = LoggerFactory.getLogger(PathKeySubObject.class);
+
+ public static final byte TYPE = 0x40;
+ public static final byte LENGTH = 8;
+ private final short pathKey;
+ private final int pceID;
+
+ /**
+ * Constructor for Path Key sub Object which initializes pathKey and pceId.
+ *
+ * @param pathKey path key provided by PCC
+ * @param pceID ID for the PCE
+ */
+ public PathKeySubObject(short pathKey, int pceID) {
+ this.pathKey = pathKey;
+ this.pceID = pceID;
+ }
+
+ /**
+ * Creates Path Key sub Object which initializes pathKey and pceId.
+ *
+ * @param pathKey path key provided by PCC
+ * @param pceID PCE id
+ * @return new object of type path key sub object
+ */
+ public static PathKeySubObject of(short pathKey, int pceID) {
+ return new PathKeySubObject(pathKey, pceID);
+ }
+
+ /**
+ * Returns Path Key.
+ *
+ * @return pathKey
+ */
+ public short getPathKey() {
+ return pathKey;
+ }
+
+ /**
+ * Returns pceID.
+ *
+ * @return pceID
+ */
+ public int getPceId() {
+ return pceID;
+ }
+
+ @Override
+ public PcepVersion getVersion() {
+ return PcepVersion.PCEP_1;
+ }
+
+ @Override
+ public short getType() {
+ return TYPE;
+ }
+
+ @Override
+ public short getLength() {
+ return LENGTH;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(pathKey, pceID);
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof PathKeySubObject) {
+ PathKeySubObject other = (PathKeySubObject) obj;
+ return Objects.equals(this.pathKey, other.pathKey) && Objects.equals(this.pceID, other.pceID);
+ }
+ return false;
+ }
+
+ @Override
+ public int write(ChannelBuffer c) {
+ int iLenStartIndex = c.writerIndex();
+ c.writeShort(TYPE);
+ c.writeShort(LENGTH);
+
+ c.writeShort(pathKey);
+ c.writeInt(pceID);
+
+ return c.writerIndex() - iLenStartIndex;
+ }
+
+ /**
+ * Reads the channel buffer and returns new path key sub objects.
+ *
+ * @param c of type channel buffer
+ * @return object of type path key sub object
+ */
+ public static PcepValueType read(ChannelBuffer c) {
+ Short pathKey = c.readShort();
+ int pceID = c.readInt();
+ return new PathKeySubObject(pathKey, pceID);
+ }
+
+ @Override
+ public void print() {
+ log.debug("PathKeySubObject");
+ log.debug("Type: " + TYPE);
+ log.debug("Length: " + LENGTH);
+ log.debug("Path Key: " + pathKey);
+ log.debug("PCEID: " + pceID);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .add("Type", TYPE).add("Length", LENGTH)
+ .add("Path Key", pathKey)
+ .add("PCE ID", pceID)
+ .toString();
+ }
+}