feat: 新增配置信息上下文.

src/main/java/com/serliunx/ddns/support/ConfigurationContextHolder.java

@@ -0,0 +1,36 @@
+package com.serliunx.ddns.support;
+
+import com.serliunx.ddns.config.Configuration;
+
+/**
+ * 配置信息上下文
+ * <li> {@link Configuration}
+ * @author <a href="mailto:serliunx@yeah.net">SerLiunx</a>
+ * @version 1.0.1
+ * @since 2024/7/8
+ */
+public final class ConfigurationContextHolder {
+
+	private static final ThreadLocal<Configuration> CONFIGURATION_HOLDER = new ThreadLocal<>();
+
+	private ConfigurationContextHolder() {throw new UnsupportedOperationException();}
+
+	/**
+	 * 获取配置信息
+	 *
+	 * @return 配置信息
+	 */
+	public static Configuration getConfiguration() {
+		return CONFIGURATION_HOLDER.get();
+	}
+
+	/**
+	 * 设置配置信息
+	 * <li> 一般在程序初始化时调用
+	 *
+	 * @param configuration 配置信息
+	 */
+	public static void setConfiguration(Configuration configuration) {
+		CONFIGURATION_HOLDER.set(configuration);
+	}
+}