Thejaswi N K
Committed by Gerrit Code Review

[onos-2603] - Implement Is Is Administrative area

Change-Id: I28c1b5461dd719af920f6c28f3b8f1e4e05222eb
/*
* 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 attribute Is Is Administrative area.
*/
public final class BgpLinkAttrIsIsAdminstGrp implements BGPValueType {
protected static final Logger log = LoggerFactory
.getLogger(BgpLinkAttrIsIsAdminstGrp.class);
public static final int ATTRLINK_PROTECTIONTYPE = 1088;
public static final int ISIS_ADMIN_DATA_LEN = 4;
/* ISIS administrative group */
private final long isisAdminGrp;
/**
* Constructor to initialize the values.
*
* @param isisAdminGrp ISIS protocol admin group
*/
public BgpLinkAttrIsIsAdminstGrp(long isisAdminGrp) {
this.isisAdminGrp = isisAdminGrp;
}
/**
* Returns object of this class with specified values.
*
* @param isisAdminGrp ISIS admin group
* @return object of BgpLinkAttrIsIsAdminstGrp
*/
public static BgpLinkAttrIsIsAdminstGrp of(final long isisAdminGrp) {
return new BgpLinkAttrIsIsAdminstGrp(isisAdminGrp);
}
/**
* Reads the BGP link attributes of ISIS administrative group area.
*
* @param cb Channel buffer
* @return object of type BgpLinkAttrIsIsAdminstGrp
* @throws BGPParseException while parsing BgpLinkAttrIsIsAdminstGrp
*/
public static BgpLinkAttrIsIsAdminstGrp read(ChannelBuffer cb)
throws BGPParseException {
long isisAdminGrp;
short lsAttrLength = cb.readShort();
if ((lsAttrLength != ISIS_ADMIN_DATA_LEN)
|| (cb.readableBytes() < lsAttrLength)) {
Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
lsAttrLength);
}
isisAdminGrp = cb.readUnsignedInt();
return BgpLinkAttrIsIsAdminstGrp.of(isisAdminGrp);
}
/**
* Link attributes of ISIS administrative group area.
*
* @return long value of the administrative group area
*/
public long linkAttrIsIsAdminGrp() {
return isisAdminGrp;
}
@Override
public short getType() {
return ATTRLINK_PROTECTIONTYPE;
}
@Override
public int hashCode() {
return Objects.hash(isisAdminGrp);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof BgpLinkAttrIsIsAdminstGrp) {
BgpLinkAttrIsIsAdminstGrp other = (BgpLinkAttrIsIsAdminstGrp) obj;
return Objects.equals(isisAdminGrp, other.isisAdminGrp);
}
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("isisAdminGrp", isisAdminGrp).toString();
}
}