/* * 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 PceccCapabilityTlv. */ public class PceccCapabilityTlv implements PcepValueType { /* PCECC CAPABILITY TLV * Reference : draft-zhao-pce-pcep-extension-for-pce-controller-01, section-7.1.1 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=32 | Length=4 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Flags |G|L| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ protected static final Logger log = LoggerFactory.getLogger(PceccCapabilityTlv.class); public static final short TYPE = 32; public static final short LENGTH = 4; public static final int SET = 1; public static final byte LFLAG_CHECK = 0x01; public static final byte GFLAG_CHECK = 0x02; private final boolean bGFlag; private final boolean bLFlag; private final int rawValue; private final boolean isRawValueSet; /** * Constructor to initialize raw Value. * * @param rawValue raw value */ public PceccCapabilityTlv(final int rawValue) { this.rawValue = rawValue; this.isRawValueSet = true; bLFlag = (rawValue & LFLAG_CHECK) == LFLAG_CHECK; bGFlag = (rawValue & GFLAG_CHECK) == GFLAG_CHECK; } /** * Constructor to initialize G-flag L-flag. * @param bGFlag G-flag * @param bLFlag L-flag */ public PceccCapabilityTlv(boolean bGFlag, boolean bLFlag) { this.bGFlag = bGFlag; this.bLFlag = bLFlag; this.rawValue = 0; this.isRawValueSet = false; } /** * Returns newly created PceccCapabilityTlv object. * * @param raw value * @return object of Pcecc Capability Tlv */ public static PceccCapabilityTlv of(final int raw) { return new PceccCapabilityTlv(raw); } @Override public PcepVersion getVersion() { return PcepVersion.PCEP_1; } /** * Returns G-flag. * @return bGFlag G-flag */ public boolean getGFlag() { return bGFlag; } /** * Returns L-flag. * @return bLFlag L-flag */ public boolean getLFlag() { return bLFlag; } /** * Returns the raw value. * @return rawValue Flags */ public int getInt() { return rawValue; } @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, bGFlag); } } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof PceccCapabilityTlv) { PceccCapabilityTlv other = (PceccCapabilityTlv) obj; if (isRawValueSet) { return Objects.equals(this.rawValue, other.rawValue); } else { return Objects.equals(this.bGFlag, other.bGFlag) && Objects.equals(this.bLFlag, other.bLFlag); } } return false; } @Override public int write(ChannelBuffer c) { int iLenStartIndex = c.writerIndex(); int temp = 0; c.writeShort(TYPE); c.writeShort(LENGTH); if (isRawValueSet) { c.writeInt(rawValue); } else { if (bGFlag) { temp = temp | GFLAG_CHECK; } if (bLFlag) { temp = temp | LFLAG_CHECK; } c.writeInt(temp); } return c.writerIndex() - iLenStartIndex; } /** * Reads channel buffer and returns object of PceccCapabilityTlv. * * @param c input channel buffer * @return object of PceccCapabilityTlv */ public static PceccCapabilityTlv read(ChannelBuffer c) { return PceccCapabilityTlv.of(c.readInt()); } @Override public String toString() { return MoreObjects.toStringHelper(getClass()) .add("Type", TYPE) .add("Length", LENGTH) .add("Value", rawValue) .toString(); } }