#

luxiaotao1123

2020-08-08 e42c649b6e14af84202c2df7e35c486ea0b5442c

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
package com.zy.core.cache;
 
import com.zy.core.Slave;
import com.zy.core.enums.SlaveType;
import com.zy.core.model.Task;
 
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentLinkedQueue;
 
/**
 * 消息队列
 * Created by vincent on 2020/8/5
 */
public class MessageQueue {
 
    // 堆垛机mq交换机
    private static final Map<Integer, ConcurrentLinkedQueue<Task>> CRN_EXCHANGE = new ConcurrentHashMap<>();
    // 输送线mq交换机
    private static final Map<Integer, ConcurrentLinkedQueue<Task>> DEVP_EXCHANGE = new ConcurrentHashMap<>();
    // 条码扫描仪mq交换机
    private static final Map<Integer, ConcurrentLinkedQueue<Task>> BARCODE_EXCHANGE = new ConcurrentHashMap<>();
    // Led灯 mq交换机
    private static final Map<Integer, ConcurrentLinkedQueue<Task>> LED_EXCHANGE = new ConcurrentHashMap<>();
    // 磅称mq交换机
    private static final Map<Integer, ConcurrentLinkedQueue<Task>> SCALE_EXCHANGE = new ConcurrentHashMap<>();
 
    /**
     * mq 交换机初始化
     */
    public static void init(SlaveType type, Slave slave) {
        switch (type) {
            case Crn:
                CRN_EXCHANGE.put(slave.getId(), new ConcurrentLinkedQueue<>());
                break;
            case Devp:
                DEVP_EXCHANGE.put(slave.getId(), new ConcurrentLinkedQueue<>());
                break;
            case Barcode:
                BARCODE_EXCHANGE.put(slave.getId(), new ConcurrentLinkedQueue<>());
                break;
            case Led:
                LED_EXCHANGE.put(slave.getId(), new ConcurrentLinkedQueue<>());
                break;
            case Scale:
                SCALE_EXCHANGE.put(slave.getId(), new ConcurrentLinkedQueue<>());
                break;
            default:
                break;
        }
    }
 
    /**
     * 添加元素
     * 如果发现队列已满无法添加的话，会直接返回false。
     */
    public static boolean offer(SlaveType type, Integer id, Task task) {
        switch (type) {
            case Crn:
                return CRN_EXCHANGE.get(id).offer(task);
            case Devp:
                return DEVP_EXCHANGE.get(id).offer(task);
            case Barcode:
                return BARCODE_EXCHANGE.get(id).offer(task);
            case Led:
                return LED_EXCHANGE.get(id).offer(task);
            case Scale:
                return SCALE_EXCHANGE.get(id).offer(task);
            default:
                return false;
        }
    }
 
    /**
     * 移除元素
     * 若队列为空，返回null。
     */
    public static Task poll(SlaveType type, Integer id) {
        switch (type) {
            case Crn:
                return CRN_EXCHANGE.get(id).poll();
            case Devp:
                return DEVP_EXCHANGE.get(id).poll();
            case Barcode:
                return BARCODE_EXCHANGE.get(id).poll();
            case Led:
                return LED_EXCHANGE.get(id).poll();
            case Scale:
                return SCALE_EXCHANGE.get(id).poll();
            default:
                return null;
        }
    }
 
}