diff options
Diffstat (limited to 'framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java')
-rwxr-xr-x | framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java b/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java new file mode 100755 index 00000000..61143fae --- /dev/null +++ b/framework/src/onos/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpLinkAttrMplsProtocolMask.java @@ -0,0 +1,152 @@ +/* + * 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.bgpio.types.attr; + +import java.util.Objects; + +import org.jboss.netty.buffer.ChannelBuffer; +import org.onosproject.bgpio.exceptions.BGPParseException; +import org.onosproject.bgpio.types.BGPErrorType; +import org.onosproject.bgpio.types.BGPValueType; +import org.onosproject.bgpio.util.Validation; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.common.base.MoreObjects; + +/** + * Implements BGP MPLS protocol mask attribute. + */ +public class BgpLinkAttrMplsProtocolMask implements BGPValueType { + + protected static final Logger log = LoggerFactory + .getLogger(BgpLinkAttrMplsProtocolMask.class); + + public static final int ATTRLINK_MPLSPROTOMASK = 1094; + public static final int MASK_BYTE_LEN = 1; + + private final boolean bLdp; + private final boolean bRsvpTe; + + public static final byte FIRST_BIT = (byte) 0x80; + public static final byte SECOND_BIT = 0x40; + + /** + * Constructor to initialize the values. + * + * @param bLdp boolean value true if LDP flag is available + * @param bRsvpTe boolean value true if RSVP TE information is available + */ + public BgpLinkAttrMplsProtocolMask(boolean bLdp, boolean bRsvpTe) { + this.bLdp = bLdp; + this.bRsvpTe = bRsvpTe; + } + + /** + * Returns object of this class with specified values. + * + * @param bLdp boolean value true if LDP flag is available + * @param bRsvpTe boolean value true if RSVP TE information is available + * @return object of BgpLinkAttrMplsProtocolMask + */ + public static BgpLinkAttrMplsProtocolMask of(final boolean bLdp, + final boolean bRsvpTe) { + return new BgpLinkAttrMplsProtocolMask(bLdp, bRsvpTe); + } + + /** + * Reads the BGP link attributes MPLS protocol mask. + * + * @param cb Channel buffer + * @return object of type BgpLinkAttrMPLSProtocolMask + * @throws BGPParseException while parsing BgpLinkAttrMplsProtocolMask + */ + public static BgpLinkAttrMplsProtocolMask read(ChannelBuffer cb) + throws BGPParseException { + boolean bLdp = false; + boolean bRsvpTe = false; + + short lsAttrLength = cb.readShort(); + + if ((lsAttrLength != MASK_BYTE_LEN) + || (cb.readableBytes() < lsAttrLength)) { + Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR, + BGPErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + byte flags = cb.readByte(); + + bLdp = ((flags & (byte) FIRST_BIT) == FIRST_BIT); + bRsvpTe = ((flags & (byte) SECOND_BIT) == SECOND_BIT); + + return BgpLinkAttrMplsProtocolMask.of(bLdp, bRsvpTe); + } + + /** + * Returns true if LDP bit is set. + * + * @return True if LDP information is set else false. + */ + public boolean ldpBit() { + return bLdp; + } + + /** + * Returns RSVP TE information. + * + * @return True if RSVP TE information is set else false. + */ + public boolean rsvpBit() { + return bRsvpTe; + } + + @Override + public short getType() { + return ATTRLINK_MPLSPROTOMASK; + } + + @Override + public int hashCode() { + return Objects.hash(bLdp, bRsvpTe); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpLinkAttrMplsProtocolMask) { + BgpLinkAttrMplsProtocolMask other = (BgpLinkAttrMplsProtocolMask) obj; + return Objects.equals(bLdp, other.bLdp) + && Objects.equals(bRsvpTe, other.bRsvpTe); + } + return false; + } + + @Override + public int write(ChannelBuffer cb) { + // TODO This will be implemented in the next version + return 0; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("bLdp", bLdp).add("bRsvpTe", bRsvpTe).toString(); + } +} |