| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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. |
| */ |
| |
| /** |
| * @author b00295750 |
| * |
| */ |
| 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 Autonomous system number sub object. |
| */ |
| public class AutonomousSystemNumberSubObject implements PcepValueType { |
| |
| /*Reference : RFC 3209 : 4.3.3.4 |
| * 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 | AS number (2-octet) | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| */ |
| private static final Logger log = LoggerFactory.getLogger(AutonomousSystemNumberSubObject.class); |
| |
| public static final byte TYPE = (byte) 0x32; |
| public static final byte LENGTH = 4; |
| public static final byte VALUE_LENGTH = 2; |
| public static final byte OBJ_LENGTH = 4; |
| public static final byte LBIT = 0; |
| public static final int SHIFT_LBIT_POSITION = 7; |
| private short asNumber; |
| |
| /** |
| * Constructor to initialize AS number. |
| * |
| * @param asNumber AS number |
| */ |
| public AutonomousSystemNumberSubObject(short asNumber) { |
| this.asNumber = asNumber; |
| } |
| |
| /** |
| * Returns a new instance of AutonomousSystemNumberSubObject. |
| * |
| * @param asNumber AS number |
| * @return object of AutonomousSystemNumberSubObject |
| */ |
| public static AutonomousSystemNumberSubObject of(short asNumber) { |
| return new AutonomousSystemNumberSubObject(asNumber); |
| } |
| |
| /** |
| * Returns value of AS number. |
| * |
| * @return value of AS number |
| */ |
| public short getAsNumber() { |
| return asNumber; |
| } |
| |
| @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(asNumber); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof AutonomousSystemNumberSubObject) { |
| AutonomousSystemNumberSubObject other = (AutonomousSystemNumberSubObject) obj; |
| return Objects.equals(this.asNumber, other.asNumber); |
| } |
| return false; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of AutonomousSystemNumberSubObject. |
| * |
| * @param c type of channel buffer |
| * @return object of AutonomousSystemNumberSubObject |
| */ |
| public static PcepValueType read(ChannelBuffer c) { |
| short asNumber = c.readShort(); |
| return new AutonomousSystemNumberSubObject(asNumber); |
| } |
| |
| @Override |
| public int write(ChannelBuffer c) { |
| int iLenStartIndex = c.writerIndex(); |
| byte bValue = LBIT; |
| bValue = (byte) (bValue << SHIFT_LBIT_POSITION); |
| bValue = (byte) (bValue | TYPE); |
| c.writeByte(bValue); |
| c.writeByte(OBJ_LENGTH); |
| c.writeShort(asNumber); |
| |
| return c.writerIndex() - iLenStartIndex; |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("Type", TYPE) |
| .add("Length", LENGTH) |
| .add("AsNumber", asNumber) |
| .toString(); |
| } |
| } |