| /* |
| * 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.Arrays; |
| |
| 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; |
| import com.google.common.base.MoreObjects.ToStringHelper; |
| |
| /** |
| * Provides IPv6 TE Router Id of Remote Node. Reference :[RFC6119]/4.1. |
| */ |
| public class IPv6TERouterIdofRemoteNodeTlv implements PcepValueType { |
| protected static final Logger log = LoggerFactory.getLogger(IPv6TERouterIdofRemoteNodeTlv.class); |
| |
| public static final short TYPE = 1400; //TDB29 |
| public static final short LENGTH = 20; |
| public static final byte VALUE_LENGTH = 18; |
| |
| private static final byte[] NONE_VAL = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| public static final IPv6TERouterIdofRemoteNodeTlv NONE = new IPv6TERouterIdofRemoteNodeTlv(NONE_VAL); |
| |
| private static final byte[] NO_MASK_VAL = {(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, |
| (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, |
| (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF}; |
| public static final IPv6TERouterIdofRemoteNodeTlv NO_MASK = new IPv6TERouterIdofRemoteNodeTlv(NO_MASK_VAL); |
| public static final IPv6TERouterIdofRemoteNodeTlv FULL_MASK = NONE; |
| |
| private final byte[] rawValue; |
| |
| /** |
| * constructor to initialize rawValue. |
| * |
| * @param rawValue IPv6TERouterIdofRemoteNodeTlv |
| */ |
| public IPv6TERouterIdofRemoteNodeTlv(byte[] rawValue) { |
| log.debug("IPv6TERouterIdofRemoteNodeTlv"); |
| this.rawValue = rawValue; |
| } |
| |
| /** |
| * Returns newly created IPv6TERouterIdofRemoteNodeTlv object. |
| * |
| * @param raw IPv6 TE Router Id of RemoteNode |
| * @return object of IPv6TERouterIdofRemoteNodeTlv |
| */ |
| public static IPv6TERouterIdofRemoteNodeTlv of(final byte[] raw) { |
| //check NONE_VAL |
| boolean bFoundNONE = true; |
| //value starts from 3rd byte. |
| for (int i = 2; i < 20; ++i) { |
| if (NONE_VAL[i] != raw[i]) { |
| bFoundNONE = false; |
| } |
| } |
| |
| if (bFoundNONE) { |
| return NONE; |
| } |
| |
| //check NO_MASK_VAL |
| boolean bFoundNoMask = true; |
| //value starts from 3rd byte. |
| for (int i = 2; i < 20; ++i) { |
| if (0xFF != raw[i]) { |
| bFoundNoMask = false; |
| } |
| } |
| if (bFoundNoMask) { |
| return NO_MASK; |
| } |
| |
| return new IPv6TERouterIdofRemoteNodeTlv(raw); |
| } |
| |
| /** |
| * Returns value of IPv6 TE Router Id of Remote Node. |
| * |
| * @return byte array value of rawValue |
| */ |
| public byte[] getBytes() { |
| return rawValue; |
| } |
| |
| @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 Arrays.hashCode(rawValue); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof IPv6TERouterIdofRemoteNodeTlv) { |
| IPv6TERouterIdofRemoteNodeTlv other = (IPv6TERouterIdofRemoteNodeTlv) obj; |
| return Arrays.equals(rawValue, other.rawValue); |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer c) { |
| int iStartIndex = c.writerIndex(); |
| c.writeShort(TYPE); |
| c.writeShort(LENGTH); |
| c.writeBytes(rawValue); |
| return c.writerIndex() - iStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of IPv6TERouterIdofRemoteNodeTlv. |
| * |
| * @param c input channel buffer |
| * @return object of IPv6TERouterIdofRemoteNodeTlv |
| */ |
| public static IPv6TERouterIdofRemoteNodeTlv read20Bytes(ChannelBuffer c) { |
| byte[] yTemp = new byte[20]; |
| c.readBytes(yTemp, 0, 20); |
| return IPv6TERouterIdofRemoteNodeTlv.of(yTemp); |
| } |
| |
| @Override |
| public String toString() { |
| ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass()); |
| |
| toStrHelper.add("Type", TYPE); |
| toStrHelper.add("Length", LENGTH); |
| |
| StringBuffer result = new StringBuffer(); |
| for (byte b : rawValue) { |
| result.append(String.format("%02X ", b)); |
| } |
| toStrHelper.add("Value", result); |
| |
| return toStrHelper.toString(); |
| } |
| } |