| /* |
| * 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.Objects; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.onosproject.bgpio.exceptions.BgpParseException; |
| import org.onosproject.bgpio.types.BgpErrorType; |
| import org.onosproject.bgpio.util.Constants; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Implementation of Node Identifier which includes local node descriptor/remote node descriptors. |
| */ |
| public class BgpNodeLSIdentifier implements Comparable<Object> { |
| |
| private static final Logger log = LoggerFactory.getLogger(BgpNodeLSIdentifier.class); |
| private NodeDescriptors nodeDescriptors; |
| |
| /** |
| * Resets fields. |
| */ |
| public BgpNodeLSIdentifier() { |
| this.nodeDescriptors = null; |
| } |
| |
| /** |
| * Constructor to initialize fields. |
| * |
| * @param nodeDescriptors local/remote node descriptor |
| */ |
| public BgpNodeLSIdentifier(NodeDescriptors nodeDescriptors) { |
| this.nodeDescriptors = nodeDescriptors; |
| } |
| |
| /** |
| * Parse local node descriptors. |
| * |
| * @param cb ChannelBuffer |
| * @param protocolId protocol identifier |
| * @return object of this BGPNodeLSIdentifier |
| * @throws BgpParseException while parsing local node descriptors |
| */ |
| public static BgpNodeLSIdentifier parseLocalNodeDescriptors(ChannelBuffer cb, byte protocolId) |
| throws BgpParseException { |
| log.debug("parse Local node descriptor"); |
| 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)); |
| } |
| NodeDescriptors nodeDescriptors = new NodeDescriptors(); |
| ChannelBuffer tempCb = cb.readBytes(length); |
| |
| if (type == NodeDescriptors.LOCAL_NODE_DES_TYPE) { |
| nodeDescriptors = NodeDescriptors.read(tempCb, length, type, protocolId); |
| } else { |
| throw new BgpParseException(BgpErrorType.UPDATE_MESSAGE_ERROR, BgpErrorType.MALFORMED_ATTRIBUTE_LIST, null); |
| } |
| return new BgpNodeLSIdentifier(nodeDescriptors); |
| } |
| |
| /** |
| * Returns node descriptors. |
| * |
| * @return node descriptors |
| */ |
| public NodeDescriptors getNodedescriptors() { |
| return this.nodeDescriptors; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof BgpNodeLSIdentifier) { |
| BgpNodeLSIdentifier other = (BgpNodeLSIdentifier) obj; |
| return Objects.equals(nodeDescriptors, other.nodeDescriptors); |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(nodeDescriptors); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("NodeDescriptors", nodeDescriptors) |
| .toString(); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| if (this.equals(o)) { |
| return 0; |
| } |
| return this.nodeDescriptors.compareTo(((BgpNodeLSIdentifier) o).nodeDescriptors); |
| } |
| } |