package com.ruoyi.alarm.globalAlarm.domain;
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import lombok.extern.slf4j.Slf4j;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.PriorityQueue;
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import java.util.concurrent.PriorityBlockingQueue;
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/**
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* @Description: 引导优先级队列
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* @ClassName: PriorityQueue
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* @Author: 刘苏义
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* @Date: 2023年06月29日11:18
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* @Version: 1.0
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**/
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@Slf4j
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public class GuidePriorityQueue {
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/**
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* 相机队列，每个相机一个优先级队列
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*/
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public static Map<String, PriorityBlockingQueue<GuideTask>> cameraQueueMap = new HashMap<>();
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/**
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* 创建一个自定义的比较器，根据优先级属性进行比较
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*/
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public static Comparator<GuideTask> getComparator() {
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Comparator<GuideTask> PriorityDescCom = Comparator.comparingInt(GuideTask::getPriority).reversed();
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Comparator<GuideTask> NumDescCom = Comparator.comparingInt(GuideTask::getNum).reversed();
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Comparator<GuideTask> alarmTimeAscCom = Comparator.comparing(GuideTask::getAlarmTime);
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Comparator<GuideTask> Comparator = PriorityDescCom.thenComparing(NumDescCom).thenComparing(alarmTimeAscCom);
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return Comparator;
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}
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/**
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* 测试使用：打印队列
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*/
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public static void printPriorityQueue() {
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for (String cameraId : GuidePriorityQueue.cameraQueueMap.keySet()) {
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PriorityBlockingQueue<GuideTask> priorityQueue = GuidePriorityQueue.cameraQueueMap.get(cameraId);
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for (GuideTask task : priorityQueue) {
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log.info("alarmId:" + task.getAlarmId() + " alarmTime:" + task.getAlarmTime() + " priority:" + task.getPriority() + " num:" + task.getNum() + " cameraId:" + task.getCameraId());
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}
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}
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}
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}
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