| /* |
| * 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; |
| |
| /** |
| * Provide node Flags bits. |
| */ |
| public class NodeFlagBitsTlv implements PcepValueType { |
| |
| /* Reference :[I-D.ietf-idr- ls-distribution] /3.3.1.1 |
| * 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=[TBD21] | Length=1 | |
| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| |O|T|E|B| Reserved| |
| +-+-+-+-+-+-+-+-+-+ |
| */ |
| |
| protected static final Logger log = LoggerFactory.getLogger(NodeFlagBitsTlv.class); |
| |
| public static final short TYPE = 14; |
| public static final short LENGTH = 1; |
| public static final int SET = 1; |
| public static final byte OFLAG_SET = (byte) 0x80; |
| public static final byte TFLAG_SET = 0x40; |
| public static final byte EFLAG_SET = 0x20; |
| public static final byte BFLAG_SET = 0x10; |
| |
| private final byte rawValue; |
| private final boolean bOFlag; |
| private final boolean bTFlag; |
| private final boolean bEFlag; |
| private final boolean bBFlag; |
| private final boolean isRawValueSet; |
| |
| /** |
| * constructor to initialize rawValue. |
| * |
| * @param rawValue of Node Flag Bits TLV |
| */ |
| public NodeFlagBitsTlv(byte rawValue) { |
| this.rawValue = rawValue; |
| isRawValueSet = true; |
| this.bOFlag = (rawValue & OFLAG_SET) == OFLAG_SET; |
| this.bTFlag = (rawValue & TFLAG_SET) == TFLAG_SET; |
| this.bEFlag = (rawValue & EFLAG_SET) == EFLAG_SET; |
| this.bBFlag = (rawValue & BFLAG_SET) == BFLAG_SET; |
| } |
| |
| /** |
| * constructor to initialize different Flags. |
| * |
| * @param bOFlag O-flag |
| * @param bTFlag T-flag |
| * @param bEFlag E-flag |
| * @param bBFlag B-flag |
| */ |
| public NodeFlagBitsTlv(boolean bOFlag, boolean bTFlag, boolean bEFlag, boolean bBFlag) { |
| this.bOFlag = bOFlag; |
| this.bTFlag = bTFlag; |
| this.bEFlag = bEFlag; |
| this.bBFlag = bBFlag; |
| this.rawValue = 0; |
| this.isRawValueSet = false; |
| } |
| |
| /** |
| * Returns newly created NodeFlagBitsTlv object. |
| * |
| * @param raw of Node Flag Bits TLV |
| * @return new object of NodeFlagBitsTlv |
| */ |
| public static NodeFlagBitsTlv of(final byte raw) { |
| return new NodeFlagBitsTlv(raw); |
| } |
| |
| /** |
| * Returns raw value of NodeFlagBitsTlv. |
| * |
| * @return rawValue raw value |
| */ |
| public byte getbyte() { |
| return rawValue; |
| } |
| |
| /** |
| * Returns O-flag. |
| * |
| * @return bOFlag O-flag |
| */ |
| public boolean getOFlag() { |
| return bOFlag; |
| } |
| |
| /** |
| * Returns T-flag. |
| * |
| * @return bTFlag T-flag |
| */ |
| public boolean getTFlag() { |
| return bTFlag; |
| } |
| |
| /** |
| * Returns E-flag. |
| * |
| * @return bEFlag E-flag |
| */ |
| public boolean getEFlag() { |
| return bEFlag; |
| } |
| |
| /** |
| * Returns B-flag. |
| * |
| * @return bBFlag B-flag |
| */ |
| public boolean getBFlag() { |
| return bBFlag; |
| } |
| |
| @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(bOFlag, bTFlag, bEFlag, bBFlag); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof NodeFlagBitsTlv) { |
| NodeFlagBitsTlv other = (NodeFlagBitsTlv) obj; |
| if (isRawValueSet) { |
| return Objects.equals(this.rawValue, other.rawValue); |
| } else { |
| return Objects.equals(this.bOFlag, other.bOFlag) && Objects.equals(this.bTFlag, other.bTFlag) |
| && Objects.equals(this.bEFlag, other.bEFlag) && Objects.equals(this.bBFlag, other.bBFlag); |
| } |
| } |
| 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 (bOFlag) { |
| temp = (byte) (temp | OFLAG_SET); |
| } |
| if (bTFlag) { |
| temp = (byte) (temp | TFLAG_SET); |
| } |
| if (bEFlag) { |
| temp = (byte) (temp | EFLAG_SET); |
| } |
| if (bBFlag) { |
| temp = (byte) (temp | BFLAG_SET); |
| } |
| c.writeByte(temp); |
| } |
| return c.writerIndex() - iLenStartIndex; |
| } |
| |
| /** |
| * Reads the channel buffer and returns object of NodeFlagBitsTlv. |
| * |
| * @param c input channel buffer |
| * @return object of NodeFlagBitsTlv |
| */ |
| public static PcepValueType read(ChannelBuffer c) { |
| |
| return NodeFlagBitsTlv.of(c.readByte()); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("Type", TYPE) |
| .add("Length", LENGTH) |
| .add("OFlag", (bOFlag) ? 1 : 0) |
| .add("TFlag", (bTFlag) ? 1 : 0) |
| .add("EFlag", (bEFlag) ? 1 : 0) |
| .add("BFlag", (bBFlag) ? 1 : 0) |
| .toString(); |
| } |
| } |