diff options
Diffstat (limited to 'framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java')
| -rw-r--r-- | framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java b/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java deleted file mode 100644 index 22e68917..00000000 --- a/framework/src/onos/protocols/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpPrefixLSIdentifier.java +++ /dev/null @@ -1,272 +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.IPReachabilityInformationTlv; -import org.onosproject.bgpio.types.OSPFRouteTypeTlv; -import org.onosproject.bgpio.types.attr.BgpAttrNodeMultiTopologyId; -import org.onosproject.bgpio.util.UnSupportedAttribute; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import com.google.common.base.MoreObjects; - -/** - * Provides Implementation of Local node descriptors and prefix descriptors. - */ -public class BgpPrefixLSIdentifier implements Comparable<Object> { - - protected static final Logger log = LoggerFactory.getLogger(BgpPrefixLSIdentifier.class); - public static final int TYPE_AND_LEN = 4; - private NodeDescriptors localNodeDescriptors; - private List<BgpValueType> prefixDescriptor; - - /** - * Resets parameters. - */ - public BgpPrefixLSIdentifier() { - this.localNodeDescriptors = null; - this.prefixDescriptor = null; - } - - /** - * Constructor to initialize parameters. - * - * @param localNodeDescriptors Local node descriptors - * @param prefixDescriptor Prefix Descriptors - */ - public BgpPrefixLSIdentifier(NodeDescriptors localNodeDescriptors, List<BgpValueType> prefixDescriptor) { - this.localNodeDescriptors = localNodeDescriptors; - this.prefixDescriptor = prefixDescriptor; - } - - /** - * Reads the channel buffer and parses Prefix Identifier. - * - * @param cb ChannelBuffer - * @param protocolId protocol ID - * @return object of this class - * @throws BgpParseException while parsing Prefix Identifier - */ - public static BgpPrefixLSIdentifier parsePrefixIdendifier(ChannelBuffer cb, byte protocolId) - throws BgpParseException { - //Parse Local Node descriptor - NodeDescriptors localNodeDescriptors = new NodeDescriptors(); - localNodeDescriptors = parseLocalNodeDescriptors(cb, protocolId); - - //Parse Prefix descriptor - List<BgpValueType> prefixDescriptor = new LinkedList<>(); - prefixDescriptor = parsePrefixDescriptors(cb); - return new BgpPrefixLSIdentifier(localNodeDescriptors, prefixDescriptor); - } - - /** - * Parse local node descriptors. - * - * @param cb ChannelBuffer - * @param protocolId protocol identifier - * @return LocalNodeDescriptors - * @throws BgpParseException while parsing local node descriptors - */ - public static NodeDescriptors parseLocalNodeDescriptors(ChannelBuffer cb, byte protocolId) - throws BgpParseException { - ChannelBuffer tempBuf = cb.copy(); - short type = cb.readShort(); - short length = cb.readShort(); - if (cb.readableBytes() < length) { - //length + 4 implies data contains type, length and value - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, - tempBuf.readBytes(cb.readableBytes() + TYPE_AND_LEN)); - } - NodeDescriptors localNodeDescriptors = new NodeDescriptors(); - ChannelBuffer tempCb = cb.readBytes(length); - - if (type == NodeDescriptors.LOCAL_NODE_DES_TYPE) { - localNodeDescriptors = NodeDescriptors.read(tempCb, length, type, protocolId); - } else { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, - BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); - } - return localNodeDescriptors; - } - - /** - * Parse list of prefix descriptors. - * - * @param cb ChannelBuffer - * @return list of prefix descriptors - * @throws BgpParseException while parsing list of prefix descriptors - */ - public static List<BgpValueType> parsePrefixDescriptors(ChannelBuffer cb) throws BgpParseException { - LinkedList<BgpValueType> prefixDescriptor = new LinkedList<>(); - BgpValueType tlv = null; - boolean isIpReachInfo = false; - ChannelBuffer tempCb; - int count = 0; - - while (cb.readableBytes() > 0) { - ChannelBuffer tempBuf = cb.copy(); - short type = cb.readShort(); - short length = cb.readShort(); - if (cb.readableBytes() < length) { - //length + 4 implies data contains type, length and value - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, - tempBuf.readBytes(cb.readableBytes() + TYPE_AND_LEN)); - } - tempCb = cb.readBytes(length); - switch (type) { - case OSPFRouteTypeTlv.TYPE: - tlv = OSPFRouteTypeTlv.read(tempCb); - break; - case IPReachabilityInformationTlv.TYPE: - tlv = IPReachabilityInformationTlv.read(tempCb, length); - isIpReachInfo = true; - break; - case BgpAttrNodeMultiTopologyId.ATTRNODE_MULTITOPOLOGY: - tlv = BgpAttrNodeMultiTopologyId.read(tempCb); - count = count + 1; - 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 + TYPE_AND_LEN)); - } - break; - default: - UnSupportedAttribute.skipBytes(tempCb, length); - } - prefixDescriptor.add(tlv); - } - - if (!isIpReachInfo) { - throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.OPTIONAL_ATTRIBUTE_ERROR, - null); - } - return prefixDescriptor; - } - - /** - * Returns local node descriptors. - * - * @return local node descriptors - */ - public NodeDescriptors getLocalNodeDescriptors() { - return this.localNodeDescriptors; - } - - /** - * Returns Prefix descriptors. - * - * @return Prefix descriptors - */ - public List<BgpValueType> getPrefixdescriptor() { - return this.prefixDescriptor; - } - - @Override - public int hashCode() { - return Objects.hash(prefixDescriptor.hashCode(), localNodeDescriptors); - } - - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } - - if (obj instanceof BgpPrefixLSIdentifier) { - int countObjSubTlv = 0; - int countOtherSubTlv = 0; - boolean isCommonSubTlv = true; - BgpPrefixLSIdentifier other = (BgpPrefixLSIdentifier) obj; - - Iterator<BgpValueType> objListIterator = other.prefixDescriptor.iterator(); - countOtherSubTlv = other.prefixDescriptor.size(); - countObjSubTlv = prefixDescriptor.size(); - if (countObjSubTlv != countOtherSubTlv) { - return false; - } else { - while (objListIterator.hasNext() && isCommonSubTlv) { - BgpValueType subTlv = objListIterator.next(); - if (prefixDescriptor.contains(subTlv) && other.prefixDescriptor.contains(subTlv)) { - isCommonSubTlv = Objects.equals(prefixDescriptor.get(prefixDescriptor.indexOf(subTlv)), - other.prefixDescriptor.get(other.prefixDescriptor.indexOf(subTlv))); - } else { - isCommonSubTlv = false; - } - } - return isCommonSubTlv && Objects.equals(this.localNodeDescriptors, other.localNodeDescriptors); - } - } - return false; - } - - @Override - public String toString() { - return MoreObjects.toStringHelper(getClass()) - .add("localNodeDescriptors", localNodeDescriptors) - .add("prefixDescriptor", prefixDescriptor) - .toString(); - } - - @Override - public int compareTo(Object o) { - if (this.equals(o)) { - return 0; - } - int result = this.localNodeDescriptors.compareTo(((BgpPrefixLSIdentifier) o).localNodeDescriptors); - if (result != 0) { - return result; - } else { - int countOtherSubTlv = ((BgpPrefixLSIdentifier) o).prefixDescriptor.size(); - int countObjSubTlv = prefixDescriptor.size(); - if (countOtherSubTlv != countObjSubTlv) { - if (countOtherSubTlv > countObjSubTlv) { - return 1; - } else { - return -1; - } - } - - ListIterator<BgpValueType> listIterator = prefixDescriptor.listIterator(); - ListIterator<BgpValueType> listIteratorOther = ((BgpPrefixLSIdentifier) o).prefixDescriptor.listIterator(); - while (listIterator.hasNext()) { - BgpValueType tlv = listIterator.next(); - if (prefixDescriptor.contains(tlv) && ((BgpPrefixLSIdentifier) o).prefixDescriptor.contains(tlv)) { - int res = prefixDescriptor.get(prefixDescriptor.indexOf(tlv)).compareTo( - ((BgpPrefixLSIdentifier) o).prefixDescriptor - .get(((BgpPrefixLSIdentifier) o).prefixDescriptor.indexOf(tlv))); - if (res != 0) { - return res; - } - } else { - return 1; - } - } - } - return 0; - } -} |