diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java deleted file mode 100644 index a4360fdf..00000000 --- a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLSIdentifier.java +++ /dev/null @@ -1,297 +0,0 @@ -/* - * 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.protocol.linkstate; - -import java.util.Iterator; -import java.util.LinkedList; -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.types.IPv4AddressTlv; -import org.onosproject.bgpio.types.IPv6AddressTlv; -import org.onosproject.bgpio.types.LinkLocalRemoteIdentifiersTlv; -import org.onosproject.bgpio.types.attr.BgpAttrNodeMultiTopologyId; -import org.onosproject.bgpio.util.Constants; -import org.onosproject.bgpio.util.UnSupportedAttribute; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; -import com.google.common.base.Preconditions; - -/** - * Implementation of local node descriptors, remote node descriptors and link descriptors. - */ -public class BgpLinkLSIdentifier implements Comparable<Object> { - private static final Logger log = LoggerFactory.getLogger(BgpLinkLSIdentifier.class); - public static final short IPV4_INTERFACE_ADDRESS_TYPE = 259; - public static final short IPV4_NEIGHBOR_ADDRESS_TYPE = 260; - public static final short IPV6_INTERFACE_ADDRESS_TYPE = 261; - public static final short IPV6_NEIGHBOR_ADDRESS_TYPE = 262; - - private NodeDescriptors localNodeDescriptors; - private NodeDescriptors remoteNodeDescriptors; - private List<BgpValueType> linkDescriptor; - - /** - * Initialize fields. - */ - public BgpLinkLSIdentifier() { - this.localNodeDescriptors = null; - this.remoteNodeDescriptors = null; - this.linkDescriptor = null; - } - - /** - * Constructors to initialize parameters. - * - * @param localNodeDescriptors local node descriptors - * @param remoteNodeDescriptors remote node descriptors - * @param linkDescriptor link descriptors - */ - public BgpLinkLSIdentifier(NodeDescriptors localNodeDescriptors, NodeDescriptors remoteNodeDescriptors, - LinkedList<BgpValueType> linkDescriptor) { - this.localNodeDescriptors = Preconditions.checkNotNull(localNodeDescriptors); - this.remoteNodeDescriptors = Preconditions.checkNotNull(remoteNodeDescriptors); - this.linkDescriptor = Preconditions.checkNotNull(linkDescriptor); - } - - /** - * Reads channel buffer and parses link identifier. - * - * @param cb ChannelBuffer - * @param protocolId in linkstate nlri - * @return object of BGPLinkLSIdentifier - * @throws BgpParseException while parsing link identifier - */ - public static BgpLinkLSIdentifier parseLinkIdendifier(ChannelBuffer cb, byte protocolId) throws BgpParseException { - //Parse local node descriptor - NodeDescriptors localNodeDescriptors = new NodeDescriptors(); - localNodeDescriptors = parseNodeDescriptors(cb, NodeDescriptors.LOCAL_NODE_DES_TYPE, protocolId); - - //Parse remote node descriptor - NodeDescriptors remoteNodeDescriptors = new NodeDescriptors(); - remoteNodeDescriptors = parseNodeDescriptors(cb, NodeDescriptors.REMOTE_NODE_DES_TYPE, protocolId); - - //Parse link descriptor - LinkedList<BgpValueType> linkDescriptor = new LinkedList<>(); - linkDescriptor = parseLinkDescriptors(cb); - return new BgpLinkLSIdentifier(localNodeDescriptors, remoteNodeDescriptors, linkDescriptor); - } - - /** - * Parses Local/Remote node descriptors. - * - * @param cb ChannelBuffer - * @param desType descriptor type - * @param protocolId protocol identifier - * @return object of NodeDescriptors - * @throws BgpParseException while parsing Local/Remote node descriptors - */ - public static NodeDescriptors parseNodeDescriptors(ChannelBuffer cb, short desType, byte protocolId) - throws BgpParseException { - log.debug("parse Node descriptors"); - ChannelBuffer tempBuf = cb.copy(); - short type = cb.readShort(); - short length = cb.readShort(); - if (cb.readableBytes() < length) { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, - tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN_AS_SHORT)); - } - NodeDescriptors nodeIdentifier = new NodeDescriptors(); - ChannelBuffer tempCb = cb.readBytes(length); - - if (type == desType) { - nodeIdentifier = NodeDescriptors.read(tempCb, length, desType, protocolId); - } else { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); - } - return nodeIdentifier; - } - - /** - * Parses link descriptors. - * - * @param cb ChannelBuffer - * @return list of link descriptors - * @throws BgpParseException while parsing link descriptors - */ - public static LinkedList<BgpValueType> parseLinkDescriptors(ChannelBuffer cb) throws BgpParseException { - LinkedList<BgpValueType> linkDescriptor = new LinkedList<>(); - BgpValueType tlv = null; - int count = 0; - - while (cb.readableBytes() > 0) { - ChannelBuffer tempBuf = cb.copy(); - short type = cb.readShort(); - short length = cb.readShort(); - if (cb.readableBytes() < length) { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, - tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN_AS_SHORT)); - } - ChannelBuffer tempCb = cb.readBytes(length); - switch (type) { - case LinkLocalRemoteIdentifiersTlv.TYPE: - tlv = LinkLocalRemoteIdentifiersTlv.read(tempCb); - break; - case IPV4_INTERFACE_ADDRESS_TYPE: - tlv = IPv4AddressTlv.read(tempCb, IPV4_INTERFACE_ADDRESS_TYPE); - break; - case IPV4_NEIGHBOR_ADDRESS_TYPE: - tlv = IPv4AddressTlv.read(tempCb, IPV4_NEIGHBOR_ADDRESS_TYPE); - break; - case IPV6_INTERFACE_ADDRESS_TYPE: - tlv = IPv6AddressTlv.read(tempCb, IPV6_INTERFACE_ADDRESS_TYPE); - break; - case IPV6_NEIGHBOR_ADDRESS_TYPE: - tlv = IPv6AddressTlv.read(tempCb, IPV6_NEIGHBOR_ADDRESS_TYPE); - break; - case BgpAttrNodeMultiTopologyId.ATTRNODE_MULTITOPOLOGY: - tlv = BgpAttrNodeMultiTopologyId.read(tempCb); - count = count++; - //MultiTopologyId TLV cannot repeat more than once - if (count > 1) { - //length + 4 implies data contains type, length and value - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, - BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, tempBuf.readBytes(length - + Constants.TYPE_AND_LEN_AS_SHORT)); - } - break; - default: - UnSupportedAttribute.skipBytes(tempCb, length); - } - linkDescriptor.add(tlv); - } - return linkDescriptor; - } - - /** - * Returns local node descriptors. - * - * @return local node descriptors - */ - public NodeDescriptors localNodeDescriptors() { - return this.localNodeDescriptors; - } - - /** - * Returns remote node descriptors. - * - * @return remote node descriptors - */ - public NodeDescriptors remoteNodeDescriptors() { - return this.remoteNodeDescriptors; - } - - /** - * Returns link descriptors. - * - * @return link descriptors - */ - public List<BgpValueType> linkDescriptors() { - return this.linkDescriptor; - } - - @Override - public int hashCode() { - return Objects.hash(linkDescriptor, localNodeDescriptors, remoteNodeDescriptors); - } - - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } - if (obj instanceof BgpLinkLSIdentifier) { - int countObjSubTlv = 0; - int countOtherSubTlv = 0; - boolean isCommonSubTlv = true; - BgpLinkLSIdentifier other = (BgpLinkLSIdentifier) obj; - Iterator<BgpValueType> objListIterator = other.linkDescriptor.iterator(); - countOtherSubTlv = other.linkDescriptor.size(); - countObjSubTlv = linkDescriptor.size(); - if (countObjSubTlv != countOtherSubTlv) { - return false; - } else { - while (objListIterator.hasNext() && isCommonSubTlv) { - BgpValueType subTlv = objListIterator.next(); - if (linkDescriptor.contains(subTlv) && other.linkDescriptor.contains(subTlv)) { - isCommonSubTlv = Objects.equals(linkDescriptor.get(linkDescriptor.indexOf(subTlv)), - other.linkDescriptor.get(other.linkDescriptor.indexOf(subTlv))); - } else { - isCommonSubTlv = false; - } - } - return isCommonSubTlv && Objects.equals(this.localNodeDescriptors, other.localNodeDescriptors) - && Objects.equals(this.remoteNodeDescriptors, other.remoteNodeDescriptors); - } - } - return false; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .add("localNodeDescriptors", localNodeDescriptors) - .add("remoteNodeDescriptors", remoteNodeDescriptors) - .add("linkDescriptor", linkDescriptor) - .toString(); - } - - @Override - public int compareTo(Object o) { - if (this.equals(o)) { - return 0; - } - int result = this.localNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).localNodeDescriptors); - if (result != 0) { - return result; - } else if (this.remoteNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).remoteNodeDescriptors) != 0) { - return this.remoteNodeDescriptors.compareTo(((BgpLinkLSIdentifier) o).remoteNodeDescriptors); - } else { - int countOtherSubTlv = ((BgpLinkLSIdentifier) o).linkDescriptor.size(); - int countObjSubTlv = linkDescriptor.size(); - if (countOtherSubTlv != countObjSubTlv) { - if (countOtherSubTlv > countObjSubTlv) { - return 1; - } else { - return -1; - } - } - ListIterator<BgpValueType> listIterator = linkDescriptor.listIterator(); - ListIterator<BgpValueType> listIteratorOther = ((BgpLinkLSIdentifier) o).linkDescriptor.listIterator(); - while (listIterator.hasNext()) { - BgpValueType tlv = listIterator.next(); - if (linkDescriptor.contains(tlv) && ((BgpLinkLSIdentifier) o).linkDescriptor.contains(tlv)) { - int res = linkDescriptor.get(linkDescriptor.indexOf(tlv)).compareTo( - ((BgpLinkLSIdentifier) o).linkDescriptor.get(((BgpLinkLSIdentifier) o).linkDescriptor - .indexOf(tlv))); - if (res != 0) { - return res; - } - } else { - return 1; - } - } - } - return 0; - } -} |