Initial commit

ruoyi-oss/src/main/java/com/ruoyi/oss/factory/OssFactory.java

@@ -0,0 +1,81 @@
+package com.ruoyi.oss.factory;
+
+import com.ruoyi.common.utils.JsonUtils;
+import com.ruoyi.common.utils.RedisUtils;
+import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.common.utils.reflect.ReflectUtils;
+import com.ruoyi.oss.constant.OssConstant;
+import com.ruoyi.oss.enumd.OssEnumd;
+import com.ruoyi.oss.exception.OssException;
+import com.ruoyi.oss.properties.OssProperties;
+import com.ruoyi.oss.service.IOssStrategy;
+import com.ruoyi.oss.service.abstractd.AbstractOssStrategy;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * 文件上传Factory
+ *
+ * @author Lion Li
+ */
+@Slf4j
+public class OssFactory {
+
+	/**
+	 * 服务实例缓存
+	 */
+	private static final Map<String, IOssStrategy> SERVICES = new ConcurrentHashMap<>();
+
+    /**
+     * 初始化工厂
+     */
+    public static void init() {
+        log.info("初始化OSS工厂");
+        RedisUtils.subscribe(OssConstant.CACHE_CONFIG_KEY, String.class, type -> {
+            // 没有的实例不处理
+            if (SERVICES.containsKey(type)) {
+                refreshService(type);
+                log.info("订阅刷新OSS配置 => " + type);
+            }
+        });
+    }
+
+	/**
+	 * 获取默认实例
+	 */
+	public static IOssStrategy instance() {
+		// 获取redis 默认类型
+		String type = RedisUtils.getCacheObject(OssConstant.CACHE_CONFIG_KEY);
+		if (StringUtils.isEmpty(type)) {
+			throw new OssException("文件存储服务类型无法找到!");
+		}
+		return instance(type);
+	}
+
+	/**
+	 * 根据类型获取实例
+	 */
+	public static IOssStrategy instance(String type) {
+        IOssStrategy service = SERVICES.get(type);
+		if (service == null) {
+			refreshService(type);
+			service = SERVICES.get(type);
+		}
+		return service;
+	}
+
+	private static void refreshService(String type) {
+		Object json = RedisUtils.getCacheObject(OssConstant.SYS_OSS_KEY + type);
+        OssProperties properties = JsonUtils.parseObject(json.toString(), OssProperties.class);
+		if (properties == null) {
+			throw new OssException("系统异常, '" + type + "'配置信息不存在!");
+		}
+		// 获取redis配置信息 创建对象 并缓存
+        IOssStrategy service = (IOssStrategy) ReflectUtils.newInstance(OssEnumd.getServiceClass(type));
+		((AbstractOssStrategy)service).init(properties);
+		SERVICES.put(type, service);
+	}
+
+}