| /* |
| * 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; |
| |
| /** |
| * Provides MPLS Protocol Mask. |
| */ |
| public class MPLSProtocolMaskTlv implements PcepValueType { |
| |
| /* Reference :[I-D.ietf-idr-ls-distribution]/3.3.2.2 |
| * 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 |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | Type=TDB39 | Length =1 | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| |L|R| Reserved | |
| +-+-+-+-+-+-+-+-+ |
| */ |
| protected static final Logger log = LoggerFactory.getLogger(MPLSProtocolMaskTlv.class); |
| |
| public static final short TYPE = 1094; //TDB39 |
| public static final short LENGTH = 1; |
| public static final byte LFLAG_SET = (byte) 0x80; |
| public static final byte RFLAG_SET = 0x40; |
| |
| private final byte rawValue; |
| private final boolean bLFlag; |
| private final boolean bRFlag; |
| private final boolean isRawValueSet; |
| |
| /** |
| * constructor to initialize rawValue. |
| * |
| * @param rawValue MPLS Protocol Mask Flag Bits |
| */ |
| public MPLSProtocolMaskTlv(byte rawValue) { |
| this.rawValue = rawValue; |
| this.isRawValueSet = true; |
| this.bLFlag = (rawValue & LFLAG_SET) == LFLAG_SET; |
| this.bRFlag = (rawValue & RFLAG_SET) == RFLAG_SET; |
| } |
| |
| /** |
| * constructor to initialize different Flags. |
| * |
| * @param bLFlag L-flag |
| * @param bRFlag R-flag |
| */ |
| public MPLSProtocolMaskTlv(boolean bLFlag, boolean bRFlag) { |
| this.bLFlag = bLFlag; |
| this.bRFlag = bRFlag; |
| this.rawValue = 0; |
| isRawValueSet = false; |
| } |
| |
| /** |
| * Returns newly created MPLSProtocolMaskTlv object. |
| * |
| * @param raw MPLS Protocol Mask Tlv |
| * @return new object of MPLS Protocol Mask Tlv |
| */ |
| public static MPLSProtocolMaskTlv of(final byte raw) { |
| return new MPLSProtocolMaskTlv(raw); |
| } |
| |
| /** |
| * Returns L-flag. |
| * |
| * @return bLFlag L-flag |
| */ |
| public boolean getbLFlag() { |
| return bLFlag; |
| } |
| |
| /** |
| * Returns R-flag. |
| * |
| * @return bRFlag R-flag |
| */ |
| public boolean getbRFlag() { |
| return bRFlag; |
| } |
| |
| /** |
| * Returns raw value. |
| * |
| * @return rawValue raw value |
| */ |
| public byte getByte() { |
| 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() { |
| if (isRawValueSet) { |
| return Objects.hash(rawValue); |
| } else { |
| return Objects.hash(bLFlag, bRFlag); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof MPLSProtocolMaskTlv) { |
| MPLSProtocolMaskTlv other = (MPLSProtocolMaskTlv) obj; |
| if (isRawValueSet) { |
| return Objects.equals(this.rawValue, other.rawValue); |
| } else { |
| return Objects.equals(this.bLFlag, other.bLFlag) && Objects.equals(this.bRFlag, other.bRFlag); |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int write(ChannelBuffer c) { |
| int iLenStartIndex = c.writerIndex(); |
| c.writeShort(TYPE); |
| c.writeShort(LENGTH); |
| if (isRawValueSet) { |
| c.writeByte(rawValue); |
| } else { |
| byte temp = 0; |
| if (bLFlag) { |
| temp = (byte) (temp | LFLAG_SET); |
| } |
| if (bRFlag) { |
| temp = (byte) (temp | RFLAG_SET); |
| } |
| c.writeByte(temp); |
| } |
| return c.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of MPLS Protocol Mask Tlv. |
| * |
| * @param c input channel buffer |
| * @return object of MPLS Protocol Mask Tlv |
| */ |
| public static PcepValueType read(ChannelBuffer c) { |
| byte temp = c.readByte(); |
| boolean bLFlag; |
| boolean bRFlag; |
| |
| bLFlag = (temp & LFLAG_SET) == LFLAG_SET; |
| bRFlag = (temp & RFLAG_SET) == RFLAG_SET; |
| |
| return new MPLSProtocolMaskTlv(bLFlag, bRFlag); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("Type", TYPE) |
| .add("Length", LENGTH) |
| .add("Value", rawValue) |
| .toString(); |
| } |
| } |