| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.jackrabbit.oak.segment.standby.server; |
| |
| import io.netty.channel.ChannelHandlerContext; |
| import io.netty.channel.ChannelInboundHandlerAdapter; |
| |
| /** |
| * Tracks the state of the communication pipeline and communicates it to an |
| * external consumer. |
| */ |
| class StateHandler extends ChannelInboundHandlerAdapter { |
| |
| private final StateConsumer consumer; |
| |
| StateHandler(StateConsumer consumer) { |
| this.consumer = consumer; |
| } |
| |
| @Override |
| public void channelRegistered(ChannelHandlerContext ctx) throws Exception { |
| consumer.consumeState("channel registered"); |
| super.channelRegistered(ctx); |
| } |
| |
| @Override |
| public void channelActive(ChannelHandlerContext ctx) throws Exception { |
| consumer.consumeState("channel active"); |
| super.channelActive(ctx); |
| } |
| |
| @Override |
| public void channelInactive(ChannelHandlerContext ctx) throws Exception { |
| consumer.consumeState("channel inactive"); |
| super.channelInactive(ctx); |
| } |
| |
| @Override |
| public void channelUnregistered(ChannelHandlerContext ctx) throws Exception { |
| consumer.consumeState("channel unregistered"); |
| super.channelUnregistered(ctx); |
| } |
| |
| @Override |
| public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { |
| consumer.consumeState("got message"); |
| super.channelRead(ctx, msg); |
| } |
| |
| @Override |
| public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { |
| consumer.consumeState("exception occurred: " + cause.getMessage()); |
| super.exceptionCaught(ctx, cause); |
| } |
| |
| } |