package com.dy.rtuMw.server.tasks;
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import com.dy.common.mw.core.CoreTask;
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import com.dy.common.queue.Node;
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import com.dy.rtuMw.server.forMs.MsObj4Ding;
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import com.dy.rtuMw.server.forMs.SendMsCache;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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/**
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* @Author: liurunyu
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* @Date: 2024/7/31 18:45
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* @Description
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*/
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public class SendMsConstantTask extends CoreTask {
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private static final Logger log = LogManager.getLogger(SendMsConstantTask.class.getName());
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/**
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* 在单线程环境中运行
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*/
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@Override
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public Integer execute() {
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try{
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//log.info("当前消息队列中还有结点数量：" + SendMsCache.size());
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dealMs() ;
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}catch(Exception e){
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log.error(e);
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}
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return SendMsCache.size()>0?0:1 ;
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}
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/**
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* 处理下行命令
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*/
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public void dealMs() {
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Node first = SendMsCache.getFirstQueueNode() ;
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if(first != null){
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Node last = SendMsCache.getLastQueueNode() ;
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while (last != null){
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last = this.doDealMs(first, last);
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}
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}
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}
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/**
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* 处理缓存的下行节点
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* @param first 第一个节点
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* @param last 最后一个节点
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*/
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private Node doDealMs(Node first, Node last){
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if(last != null){
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//在dealNode方法中，可能要把last从队列中移除，这时last.pre为空，所以提前把last.pre取出来
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Node pre = last.pre ;
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dealNode(last) ;
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if(first != last){
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return pre ;
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}else{
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//停止
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return null ;
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}
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}else{
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return null ;
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}
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}
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/**
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* 处理一个节点
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* @param node 节点
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*/
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private void dealNode(Node node){
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if(node != null && node.obj != null){
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MsObj4Ding obj = (MsObj4Ding)node.obj ;
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boolean removeNode = obj.dealSelf() ;
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if(removeNode){
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SendMsCache.removeNode(node);
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}
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}
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}
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}
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