| /* |
| * 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.Arrays; |
| 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 prefix route tag attribute. |
| */ |
| public class BgpPrefixAttrRouteTag implements BGPValueType { |
| |
| protected static final Logger log = LoggerFactory |
| .getLogger(BgpPrefixAttrRouteTag.class); |
| |
| public static final int ATTR_PREFIX_ROUTETAG = 1153; |
| |
| /* Prefix Route Tag */ |
| private int[] pfxRouteTag; |
| |
| /** |
| * Constructor to initialize the values. |
| * |
| * @param pfxRouteTag prefix route tag |
| */ |
| BgpPrefixAttrRouteTag(int[] pfxRouteTag) { |
| this.pfxRouteTag = Arrays.copyOf(pfxRouteTag, pfxRouteTag.length); |
| } |
| |
| /** |
| * Reads the Route Tag. |
| * |
| * @param cb ChannelBuffer |
| * @return object of BgpPrefixAttrRouteTag |
| * @throws BGPParseException while parsing BgpPrefixAttrRouteTag |
| */ |
| public static BgpPrefixAttrRouteTag read(ChannelBuffer cb) |
| throws BGPParseException { |
| int[] pfxRouteTag; |
| |
| short lsAttrLength = cb.readShort(); |
| int len = lsAttrLength / Integer.SIZE; |
| |
| if (cb.readableBytes() < lsAttrLength) { |
| Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR, |
| BGPErrorType.ATTRIBUTE_LENGTH_ERROR, |
| lsAttrLength); |
| } |
| |
| pfxRouteTag = new int[lsAttrLength]; |
| |
| for (int i = 0; i < len; i++) { |
| pfxRouteTag[i] = cb.readInt(); |
| } |
| |
| return new BgpPrefixAttrRouteTag(pfxRouteTag); |
| } |
| |
| /** |
| * Returns the prefix route tag. |
| * |
| * @return route tag |
| */ |
| int[] getPfxRouteTag() { |
| return pfxRouteTag; |
| } |
| |
| @Override |
| public short getType() { |
| return ATTR_PREFIX_ROUTETAG; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(pfxRouteTag); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof BgpPrefixAttrRouteTag) { |
| BgpPrefixAttrRouteTag other = (BgpPrefixAttrRouteTag) obj; |
| return Objects.equals(pfxRouteTag, other.pfxRouteTag); |
| } |
| 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()).omitNullValues() |
| .add("pfxRouteTag", pfxRouteTag).toString(); |
| } |
| } |