feat(): 新增本地缓存工具类

cloud-modules/cloud-modules-event-process/pom.xml

@@ -52,6 +52,12 @@
             <artifactId>iotdb-session</artifactId>
         </dependency>
 
+        <!-- Caffeine本地缓存 -->
+        <dependency>
+            <groupId>com.github.ben-manes.caffeine</groupId>
+            <artifactId>caffeine</artifactId>
+        </dependency>
+
         <!-- MuYu Common DataScope -->
         <dependency>
             <groupId>com.muyu</groupId>

cloud-modules/cloud-modules-event-process/src/main/java/com/muyu/event/process/listener/IoTDBInsertDataListener.java

@@ -49,7 +49,7 @@ public class IoTDBInsertDataListener implements BasicEventListener<String> {
      * @return 键的列表
      */
     private List<String> extractKeys(JSONObject data) {
-        return data.keySet().stream().collect(Collectors.toList());
+        return data.keySet().stream().toList();
     }
 
     /**

cloud-modules/cloud-modules-event-process/src/main/java/com/muyu/event/process/util/CacheUtil.java

@@ -0,0 +1,57 @@
+package com.muyu.event.process.util;
+
+import com.github.benmanes.caffeine.cache.Cache;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import org.springframework.stereotype.Component;
+
+/**
+ * @Author: zi run
+ * @Date 2024/10/4 14:25
+ * @Description 缓存工具
+ */
+@Component
+public class CacheUtil<T> {
+
+    /**
+     * Caffeine缓存实例，用于存储键值对
+     */
+    private final Cache<String, T> cache;
+
+    /**
+     * 构造方法，初始化Caffeine缓存
+     */
+    public CacheUtil() {
+        this.cache = Caffeine.newBuilder()
+                .maximumSize(500L)
+                .build();
+    }
+
+    /**
+     * 根据给定的键获取缓存中的值
+     *
+     * @param key 要查询的缓存键
+     * @return 与键对应的值，如果不存在则返回null
+     */
+    public T get(String key) {
+        return (T) cache.getIfPresent(key);
+    }
+
+    /**
+     * 将指定的键值对放入缓存中
+     *
+     * @param key 要存放的缓存键
+     * @param value 要存放的缓存值
+     */
+    public void put(String key, T value) {
+        cache.put(key, value);
+    }
+
+    /**
+     * 根据给定的键移除缓存中的值
+     *
+     * @param key 要移除的缓存键
+     */
+    public void remove(String key) {
+        cache.invalidate(key);
+    }
+}

pom.xml

@@ -52,6 +52,7 @@
         <iotdb.session.verison>1.3.1</iotdb.session.verison>
         <mybatis.plus.join.version>1.4.13</mybatis.plus.join.version>
         <org.eclipse.paho.client.mqttv3.version>1.2.5</org.eclipse.paho.client.mqttv3.version>
+        <caffeine.version>3.1.8</caffeine.version>
     </properties>
 
     <!-- 依赖声明 -->
@@ -262,6 +263,13 @@
                 <version>${org.eclipse.paho.client.mqttv3.version}</version>
             </dependency>
 
+            <!-- Caffeine本地缓存 -->
+            <dependency>
+                <groupId>com.github.ben-manes.caffeine</groupId>
+                <artifactId>caffeine</artifactId>
+                <version>${caffeine.version}</version>
+            </dependency>
+
             <!-- 核心模块 -->
             <dependency>
                 <groupId>com.muyu</groupId>