| /* |
| * Copyright 2024-present Open Networking Foundation |
| * |
| * 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.sflow.impl; |
| |
| import org.jboss.netty.channel.ChannelHandlerContext; |
| import org.jboss.netty.channel.ChannelStateEvent; |
| import org.jboss.netty.channel.ExceptionEvent; |
| import org.jboss.netty.channel.MessageEvent; |
| import org.jboss.netty.channel.Channel; |
| import org.jboss.netty.channel.SimpleChannelHandler; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.onosproject.sflow.SflowController; |
| |
| /** |
| * Channel handler deals with the netfow exporter connection and dispatches messages |
| * from netfow exporter to the appropriate locations. |
| */ |
| public class SflowChannelHandler extends SimpleChannelHandler { |
| |
| private static final Logger log = LoggerFactory.getLogger(SflowChannelHandler.class); |
| |
| private Channel channel; |
| |
| private SflowController controller; |
| |
| /** |
| * Create a new sFlow channelHandler instance. |
| * |
| * @param controller sFlow controller. |
| */ |
| SflowChannelHandler(SflowController controller) { |
| this.controller = controller; |
| } |
| |
| /** |
| * sFlow channel connect to sFlow exporter. |
| * |
| * @param ctx channel handler context |
| * @param event channel state event |
| * @throws Exception on error while connecting channel |
| */ |
| @Override |
| public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent event) throws Exception { |
| channel = event.getChannel(); |
| } |
| |
| /** |
| * sFlow channel disconnect to sFlow exporter. |
| * |
| * @param ctx channel handler context |
| * @param event channel state event |
| * @throws Exception on error while disconnecting channel |
| */ |
| @Override |
| public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent event) throws Exception { |
| channel = event.getChannel(); |
| } |
| |
| /** |
| * sFlow channel exception to sFlow exporter. |
| * |
| * @param ctx channel handler context |
| * @param event channel exception event |
| * @throws Exception on error while parsing exception |
| */ |
| @Override |
| public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent event) throws Exception { |
| //TODO exception handler |
| } |
| |
| /** |
| * sFlow message receive from sFlow exporter. |
| * |
| * @param ctx channel handler context |
| * @param event channel message event |
| * @throws Exception on error while parsing exception |
| */ |
| @Override |
| public void messageReceived(ChannelHandlerContext ctx, MessageEvent event) throws Exception { |
| channel = event.getChannel(); |
| } |
| |
| } |
| |