package com.zy.acs.gateway.handler;
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import com.zy.acs.framework.common.Cools;
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import com.zy.acs.gateway.AbstractInboundHandler;
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import com.zy.acs.gateway.cache.ChannelCache;
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import com.zy.acs.gateway.domain.AgvPackage;
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import io.netty.channel.ChannelHandler;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.timeout.IdleState;
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import io.netty.handler.timeout.IdleStateEvent;
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import io.netty.util.ReferenceCountUtil;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.stereotype.Component;
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/**
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* 通道维护handler
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* Created by vincent on 2019-04-11
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*/
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@Component("protectorHandler")
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@ChannelHandler.Sharable
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public class ProtectorHandler extends AbstractInboundHandler<AgvPackage> {
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private static final Logger log = LoggerFactory.getLogger(ProtectorHandler.class);
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@Override
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protected boolean channelRead0(ChannelHandlerContext ctx, AgvPackage pac) throws Exception {
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// jvm堆外内存需要手动释放
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ReferenceCountUtil.release(pac.getSourceBuff());
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return true;
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}
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/**
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* 断开连接
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*/
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@Override
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public void channelInactive(ChannelHandlerContext ctx) {
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String uniqueno = ChannelCache.removeChannel(ctx.channel());
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ctx.close();
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if (!Cools.isEmpty(uniqueno)){
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log.info("Agv [{}] 失去连接", uniqueno);
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}
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}
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/**
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* 管道异常
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*/
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
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log.error("ProtectorHandler exceptionCaught", cause);
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if (cause instanceof IndexOutOfBoundsException) {
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log.error("Received malformed data, waiting for more input......");
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} else {
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ChannelCache.removeChannel(ctx.channel());
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ctx.close();
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}
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}
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/**
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* 空闲剔除
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*/
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@Override
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public void userEventTriggered(ChannelHandlerContext ctx, Object evt) {
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if (evt instanceof IdleStateEvent) {
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IdleStateEvent e = (IdleStateEvent) evt;
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if (IdleState.READER_IDLE == e.state()) {
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String uniqueno = ChannelCache.removeChannel(ctx.channel());
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ctx.close();
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if (!Cools.isEmpty(uniqueno)){
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log.info("Agv [{}] 空闲剔除", uniqueno);
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}
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}
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}
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}
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}
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