| /* |
| * 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 org.jboss.netty.buffer.ChannelBuffer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Provides PcepRsvpObjectHeader. |
| */ |
| public class PcepRsvpObjectHeader { |
| |
| /* |
| 0 1 2 3 |
| +-------------+-------------+-------------+-------------+ |
| | Length (bytes) | Class-Num | C-Type | |
| +-------------+-------------+-------------+-------------+ |
| | | |
| // (Object contents) // |
| | | |
| +-------------+-------------+-------------+-------------+ |
| |
| ERROR_SPEC object Header |
| */ |
| |
| protected static final Logger log = LoggerFactory.getLogger(PcepRsvpObjectHeader.class); |
| |
| public static final boolean REQ_OBJ_MUST_PROCESS = true; |
| public static final boolean REQ_OBJ_OPTIONAL_PROCESS = false; |
| public static final boolean RSP_OBJ_IGNORED = true; |
| public static final boolean RSP_OBJ_PROCESSED = false; |
| public static final int OBJECT_TYPE_SHIFT_VALUE = 4; |
| private byte objClassNum; |
| private byte objClassType; |
| private short objLen; |
| |
| /** |
| * Constructor to initialize class num, length and type. |
| * |
| * @param objClassNum object class number |
| * @param objClassType object class type |
| * @param objLen object length |
| */ |
| public PcepRsvpObjectHeader(byte objClassNum, byte objClassType, short objLen) { |
| this.objClassNum = objClassNum; |
| this.objClassType = objClassType; |
| this.objLen = objLen; |
| } |
| |
| /** |
| * Sets the Class-Num. |
| * |
| * @param value object class number |
| */ |
| public void setObjClassNum(byte value) { |
| this.objClassNum = value; |
| } |
| |
| /** |
| * Sets the Class type. |
| * |
| * @param value object class type |
| */ |
| public void setObjClassType(byte value) { |
| this.objClassType = value; |
| } |
| |
| /** |
| * Sets the Class Length. |
| * |
| * @param value object length |
| */ |
| public void setObjLen(short value) { |
| this.objLen = value; |
| } |
| |
| /** |
| * Returns Object Length. |
| * |
| * @return objLen |
| */ |
| public short getObjLen() { |
| return this.objLen; |
| } |
| |
| /** |
| * Returns Object num. |
| * |
| * @return objClassNum |
| */ |
| public byte getObjClassNum() { |
| return this.objClassNum; |
| } |
| |
| /** |
| * Returns Object type. |
| * |
| * @return objClassType |
| */ |
| public byte getObjClassType() { |
| return this.objClassType; |
| } |
| |
| /** |
| * Writes the byte stream of PcepRsvpObjectHeader to channel buffer. |
| * |
| * @param cb of type channel buffer |
| * @return object length index in channel buffer |
| */ |
| public int write(ChannelBuffer cb) { |
| int iLenStartIndex = cb.writerIndex(); |
| cb.writeShort((short) 0); |
| cb.writeByte(this.objClassNum); |
| cb.writeByte(this.objClassType); |
| return cb.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the PcepRsvpObjectHeader. |
| * |
| * @param cb input channel buffer |
| * @return PcepRsvpObjectHeader |
| */ |
| public static PcepRsvpObjectHeader read(ChannelBuffer cb) { |
| log.debug("read "); |
| byte objClassNum; |
| byte objClassType; |
| short objLen; |
| objLen = cb.readShort(); |
| objClassNum = cb.readByte(); |
| objClassType = cb.readByte(); |
| |
| return new PcepRsvpObjectHeader(objClassNum, objClassType, objLen); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("ObjectClassNum", objClassNum) |
| .add("ObjectCType", objClassType) |
| .add("ObjectLength", objLen) |
| .toString(); |
| } |
| } |