| /* |
| * 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.flink.streaming.connectors.netty.example |
| |
| import io.netty.channel.{ChannelHandlerContext, SimpleChannelInboundHandler} |
| import org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext |
| import org.slf4j.LoggerFactory |
| |
| /** |
| * process netty stream data, add to flink |
| */ |
| private class TcpHandler(sctx: SourceContext[String]) extends SimpleChannelInboundHandler[String] { |
| private lazy val logger = LoggerFactory.getLogger(getClass) |
| |
| override def channelRead0(ctx: ChannelHandlerContext, msg: String): Unit = { |
| sctx.collect(msg) |
| } |
| |
| override def channelActive(ctx: ChannelHandlerContext): Unit = { |
| logger.info(s"tcp channel active, remote address:${ctx.channel().remoteAddress()}") |
| } |
| |
| override def channelReadComplete(ctx: ChannelHandlerContext): Unit = ctx.flush |
| |
| override def exceptionCaught(ctx: ChannelHandlerContext, cause: Throwable) { |
| logger.error(s"netty server channel ${ctx.channel()} error", cause) |
| ctx.close() |
| } |
| } |