diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java new file mode 100644 index 00000000..31d855db --- /dev/null +++ b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/attr/BgpAttrNodeMultiTopologyId.java @@ -0,0 +1,164 @@ +/* + * 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.ArrayList; +import java.util.List; +import java.util.ListIterator; +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; + +/** + * BGP Multi-Topology ID of the LS attribute. + */ +public class BgpAttrNodeMultiTopologyId implements BgpValueType { + + private static final Logger log = LoggerFactory + .getLogger(BgpAttrNodeMultiTopologyId.class); + + public static final int ATTRNODE_MULTITOPOLOGY = 263; + + /* Opaque Node Attribute */ + private List<Short> multiTopologyId = new ArrayList<Short>(); + + /** + * Constructor to initialize the Node attribute multi-topology ID. + * + * @param multiTopologyId multi-topology ID + */ + public BgpAttrNodeMultiTopologyId(List<Short> multiTopologyId) { + this.multiTopologyId = multiTopologyId; + } + + /** + * Returns object of this class with specified values. + * + * @param multiTopologyId Prefix Metric + * @return object of BgpAttrNodeMultiTopologyId + */ + public static BgpAttrNodeMultiTopologyId of(ArrayList<Short> multiTopologyId) { + return new BgpAttrNodeMultiTopologyId(multiTopologyId); + } + + /** + * Reads the Multi-topology ID of Node attribute. + * + * @param cb ChannelBuffer + * @return Constructor of BgpAttrNodeMultiTopologyId + * @throws BgpParseException while parsing BgpAttrNodeMultiTopologyId + */ + public static BgpAttrNodeMultiTopologyId read(ChannelBuffer cb) + throws BgpParseException { + ArrayList<Short> multiTopologyId = new ArrayList<Short>(); + short tempMultiTopologyId; + short lsAttrLength = cb.readShort(); + int len = lsAttrLength / 2; // Length is 2*n and n is the number of MT-IDs + + if (cb.readableBytes() < lsAttrLength) { + Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR, + BgpErrorType.ATTRIBUTE_LENGTH_ERROR, + lsAttrLength); + } + + for (int i = 0; i < len; i++) { + tempMultiTopologyId = cb.readShort(); + multiTopologyId.add(new Short(tempMultiTopologyId)); + } + + return new BgpAttrNodeMultiTopologyId(multiTopologyId); + } + + /** + * to get the multi-topology ID. + * + * @return multitopology ID + */ + public List<Short> attrMultiTopologyId() { + return multiTopologyId; + } + + @Override + public short getType() { + return ATTRNODE_MULTITOPOLOGY; + } + + @Override + public int hashCode() { + return Objects.hash(multiTopologyId); + } + + @Override + public boolean equals(Object obj) { + if (this == obj) { + return true; + } + + if (obj instanceof BgpAttrNodeMultiTopologyId) { + BgpAttrNodeMultiTopologyId other = (BgpAttrNodeMultiTopologyId) obj; + return Objects.equals(multiTopologyId, other.multiTopologyId); + } + 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("multiTopologyId", multiTopologyId) + .toString(); + } + + @Override + public int compareTo(Object o) { + if (this.equals(o)) { + return 0; + } + int countOtherSubTlv = ((BgpAttrNodeMultiTopologyId) o).multiTopologyId.size(); + int countObjSubTlv = multiTopologyId.size(); + if (countOtherSubTlv != countObjSubTlv) { + if (countOtherSubTlv > countObjSubTlv) { + return 1; + } else { + return -1; + } + } + ListIterator<Short> listIterator = multiTopologyId.listIterator(); + ListIterator<Short> listIteratorOther = ((BgpAttrNodeMultiTopologyId) o).multiTopologyId.listIterator(); + while (listIterator.hasNext()) { + short id = listIterator.next(); + short id1 = listIteratorOther.next(); + if (((Short) id).compareTo((Short) id1) != 0) { + return ((Short) id).compareTo((Short) id1); + } + } + return 0; + } +}
\ No newline at end of file |