/* * Copyright 1999-2011 Alibaba Group. * * 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 com.alibaba.dubbo.remoting; import com.alibaba.dubbo.common.extension.SPI; /** * ChannelHandler. (API, Prototype, ThreadSafe) * * @see com.alibaba.dubbo.remoting.Transporter#bind(com.alibaba.dubbo.common.URL, ChannelHandler) * @see com.alibaba.dubbo.remoting.Transporter#connect(com.alibaba.dubbo.common.URL, ChannelHandler) * @author qian.lei * @author william.liangf */ @SPI public interface ChannelHandler { /** * on channel connected. * * @param channel channel. */ void connected(Channel channel) throws RemotingException; /** * on channel disconnected. * * @param channel channel. */ void disconnected(Channel channel) throws RemotingException; /** * on message sent. * * @param channel channel. * @param message message. */ void sent(Channel channel, Object message) throws RemotingException; /** * on message received. * * @param channel channel. * @param message message. */ void received(Channel channel, Object message) throws RemotingException; /** * on exception caught. * * @param channel channel. * @param exception exception. */ void caught(Channel channel, Throwable exception) throws RemotingException; }