| /* |
| * 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 prefix metric attribute. |
| */ |
| public class BgpPrefixAttrMetric implements BgpValueType { |
| |
| protected static final Logger log = LoggerFactory |
| .getLogger(BgpPrefixAttrMetric.class); |
| |
| public static final int ATTR_PREFIX_METRIC = 1155; |
| public static final int ATTR_PREFIX_LEN = 4; |
| |
| /* TE Default Metric */ |
| private final int linkPfxMetric; |
| |
| /** |
| * Constructor to initialize value. |
| * |
| * @param linkPfxMetric Prefix Metric |
| */ |
| public BgpPrefixAttrMetric(int linkPfxMetric) { |
| this.linkPfxMetric = linkPfxMetric; |
| } |
| |
| /** |
| * Returns object of this class with specified values. |
| * |
| * @param linkPfxMetric Prefix Metric |
| * @return object of BgpPrefixAttrMetric |
| */ |
| public static BgpPrefixAttrMetric of(final int linkPfxMetric) { |
| return new BgpPrefixAttrMetric(linkPfxMetric); |
| } |
| |
| /** |
| * Reads the Prefix Metric. |
| * |
| * @param cb ChannelBuffer |
| * @return object of BgpPrefixAttrMetric |
| * @throws BgpParseException while parsing BgpPrefixAttrMetric |
| */ |
| public static BgpPrefixAttrMetric read(ChannelBuffer cb) |
| throws BgpParseException { |
| int linkPfxMetric; |
| |
| short lsAttrLength = cb.readShort(); // 4 Bytes |
| |
| if ((lsAttrLength != ATTR_PREFIX_LEN) |
| || (cb.readableBytes() < lsAttrLength)) { |
| Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, |
| BgpErrorType.ATTRIBUTE_LENGTH_ERROR, |
| lsAttrLength); |
| } |
| |
| linkPfxMetric = cb.readInt(); |
| |
| return BgpPrefixAttrMetric.of(linkPfxMetric); |
| } |
| |
| /** |
| * Returns the Prefix Metric. |
| * |
| * @return Prefix Metric |
| */ |
| public int attrPfxMetric() { |
| return linkPfxMetric; |
| } |
| |
| @Override |
| public short getType() { |
| return ATTR_PREFIX_METRIC; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(linkPfxMetric); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| |
| if (obj instanceof BgpPrefixAttrMetric) { |
| BgpPrefixAttrMetric other = (BgpPrefixAttrMetric) obj; |
| return Objects.equals(linkPfxMetric, other.linkPfxMetric); |
| } |
| 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("linkPfxMetric", linkPfxMetric).toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| } |