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/*
* 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 static com.google.common.base.Preconditions.checkNotNull;
import java.util.ArrayList;
import java.util.List;
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 Extended tag attribute.
*/
public class BgpPrefixAttrExtRouteTag implements BgpValueType {
protected static final Logger log = LoggerFactory
.getLogger(BgpPrefixAttrExtRouteTag.class);
public static final int ATTR_PREFIX_EXTROUTETAG = 1154;
public static final int ATTR_PREFIX_EXT_LEN = 8;
/* Prefix Route Tag */
private List<Long> pfxExtRouteTag = new ArrayList<Long>();
/**
* Constructor to initialize the values.
*
* @param pfxExtRouteTag Extended route tag
*/
public BgpPrefixAttrExtRouteTag(List<Long> pfxExtRouteTag) {
this.pfxExtRouteTag = checkNotNull(pfxExtRouteTag);
}
/**
* Returns object of this class with specified values.
*
* @param pfxExtRouteTag Prefix Metric
* @return object of BgpPrefixAttrMetric
*/
public static BgpPrefixAttrExtRouteTag of(ArrayList<Long> pfxExtRouteTag) {
return new BgpPrefixAttrExtRouteTag(pfxExtRouteTag);
}
/**
* Reads the Extended Tag.
*
* @param cb ChannelBuffer
* @return object of BgpPrefixAttrExtRouteTag
* @throws BgpParseException while parsing BgpPrefixAttrExtRouteTag
*/
public static BgpPrefixAttrExtRouteTag read(ChannelBuffer cb)
throws BgpParseException {
ArrayList<Long> pfxExtRouteTag = new ArrayList<Long>();
long temp;
short lsAttrLength = cb.readShort();
int len = lsAttrLength / ATTR_PREFIX_EXT_LEN;
if (cb.readableBytes() < lsAttrLength) {
Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR,
BgpErrorType.ATTRIBUTE_LENGTH_ERROR,
lsAttrLength);
}
for (int i = 0; i < len; i++) {
temp = cb.readLong();
pfxExtRouteTag.add(new Long(temp));
}
return new BgpPrefixAttrExtRouteTag(pfxExtRouteTag);
}
/**
* Returns Extended route tag.
*
* @return route tag
*/
public List<Long> pfxExtRouteTag() {
return pfxExtRouteTag;
}
@Override
public short getType() {
return ATTR_PREFIX_EXTROUTETAG;
}
@Override
public int hashCode() {
return Objects.hash(pfxExtRouteTag);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof BgpPrefixAttrExtRouteTag) {
BgpPrefixAttrExtRouteTag other = (BgpPrefixAttrExtRouteTag) obj;
return Objects.equals(pfxExtRouteTag, other.pfxExtRouteTag);
}
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("pfxExtRouteTag", pfxExtRouteTag).toString();
}
@Override
public int compareTo(Object o) {
// TODO Auto-generated method stub
return 0;
}
}
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