| /* |
| * 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.bgpio.types; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Objects; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.bgpio.protocol.IGPRouterID; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Provides implementation of IsIsPseudonode Tlv. |
| */ |
| public class IsIsPseudonode implements IGPRouterID, BGPValueType { |
| private static final Logger log = LoggerFactory.getLogger(IsIsPseudonode.class); |
| |
| public static final short TYPE = 515; |
| public static final short LENGTH = 7; |
| |
| private final List<Byte> isoNodeID; |
| private byte psnIdentifier; |
| |
| /** |
| * Constructor to initialize isoNodeID. |
| * |
| * @param isoNodeID ISO system-ID |
| * @param psnIdentifier PSN identifier |
| */ |
| public IsIsPseudonode(List<Byte> isoNodeID, byte psnIdentifier) { |
| this.isoNodeID = isoNodeID; |
| this.psnIdentifier = psnIdentifier; |
| } |
| |
| /** |
| * Returns object of this class with specified values. |
| * |
| * @param isoNodeID ISO system-ID |
| * @param psnIdentifier PSN identifier |
| * @return object of IsIsPseudonode |
| */ |
| public static IsIsPseudonode of(final List<Byte> isoNodeID, |
| final byte psnIdentifier) { |
| return new IsIsPseudonode(isoNodeID, psnIdentifier); |
| } |
| |
| /** |
| * Returns ISO NodeID. |
| * |
| * @return ISO NodeID |
| */ |
| public List<Byte> getISONodeID() { |
| return isoNodeID; |
| } |
| |
| /** |
| * Returns PSN Identifier. |
| * |
| * @return PSN Identifier |
| */ |
| public byte getPSNIdentifier() { |
| return this.psnIdentifier; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(isoNodeID) & Objects.hash(psnIdentifier); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof IsIsPseudonode) { |
| int countObjSubTlv = 0; |
| int countOtherSubTlv = 0; |
| boolean isCommonSubTlv = true; |
| IsIsPseudonode other = (IsIsPseudonode) obj; |
| Iterator<Byte> objListIterator = other.isoNodeID.iterator(); |
| countOtherSubTlv = other.isoNodeID.size(); |
| countObjSubTlv = isoNodeID.size(); |
| if (countObjSubTlv != countOtherSubTlv) { |
| return false; |
| } else { |
| while (objListIterator.hasNext() && isCommonSubTlv) { |
| Byte subTlv = objListIterator.next(); |
| if (isoNodeID.contains(subTlv) && other.isoNodeID.contains(subTlv)) { |
| isCommonSubTlv = Objects.equals(isoNodeID.get(isoNodeID.indexOf(subTlv)), |
| other.isoNodeID.get(other.isoNodeID.indexOf(subTlv))); |
| } else { |
| isCommonSubTlv = false; |
| } |
| } |
| return isCommonSubTlv && Objects.equals(psnIdentifier, other.psnIdentifier); |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer c) { |
| int iLenStartIndex = c.writerIndex(); |
| c.writeShort(TYPE); |
| c.writeShort(LENGTH); |
| Iterator<Byte> objListIterator = isoNodeID.iterator(); |
| while (objListIterator.hasNext()) { |
| byte value = objListIterator.next(); |
| c.writeByte(value); |
| } |
| c.writeByte(psnIdentifier); |
| return c.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of IsIsPseudonode. |
| * |
| * @param cb ChannelBuffer |
| * @return object of IsIsPseudonode |
| */ |
| public static IsIsPseudonode read(ChannelBuffer cb) { |
| List<Byte> isoNodeID = new ArrayList<Byte>(); |
| byte value; |
| for (int i = 0; i < LENGTH; i++) { |
| value = cb.readByte(); |
| isoNodeID.add(value); |
| } |
| byte psnIdentifier = cb.readByte(); |
| return IsIsPseudonode.of(isoNodeID, psnIdentifier); |
| } |
| |
| @Override |
| public short getType() { |
| return TYPE; |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("Type", TYPE) |
| .add("Length", LENGTH) |
| .add("isoNodeID", isoNodeID) |
| .add("psnIdentifier", psnIdentifier) |
| .toString(); |
| } |
| } |