diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/MPLSProtocolMaskTlv.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/MPLSProtocolMaskTlv.java | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/MPLSProtocolMaskTlv.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/MPLSProtocolMaskTlv.java new file mode 100644 index 00000000..fc0f8771 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/MPLSProtocolMaskTlv.java @@ -0,0 +1,200 @@ +/* + * 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(); + } +} |