From 80b6cbfc9c861469146318d0b3dd5f8b8b525b8a Mon Sep 17 00:00:00 2001
From: xiejun <xiejun@vci-tech.com>
Date: 星期五, 01 十一月 2024 15:11:19 +0800
Subject: [PATCH] Revert "集成获取mdm分发通用数据格式接口集成"
---
Source/BladeX-Tool/blade-core-tool/src/main/java/org/springblade/core/tool/utils/Lazy.java | 72 ++++++++++++++++++++++++++++++++++++
1 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/Source/BladeX-Tool/blade-core-tool/src/main/java/org/springblade/core/tool/utils/Lazy.java b/Source/BladeX-Tool/blade-core-tool/src/main/java/org/springblade/core/tool/utils/Lazy.java
new file mode 100644
index 0000000..0e62408
--- /dev/null
+++ b/Source/BladeX-Tool/blade-core-tool/src/main/java/org/springblade/core/tool/utils/Lazy.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018-2028, DreamLu All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * Neither the name of the dreamlu.net developer nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * Author: DreamLu 鍗㈡槬姊� (596392912@qq.com)
+ */
+package org.springblade.core.tool.utils;
+
+import org.springframework.lang.Nullable;
+
+import java.io.Serializable;
+import java.util.function.Supplier;
+
+/**
+ * Holder of a value that is computed lazy.
+ *
+ * @author L.cm
+ */
+public class Lazy<T> implements Supplier<T>, Serializable {
+
+ @Nullable
+ private transient volatile Supplier<? extends T> supplier;
+ @Nullable
+ private T value;
+
+ /**
+ * Creates new instance of Lazy.
+ *
+ * @param supplier Supplier
+ * @param <T> 娉涘瀷鏍囪
+ * @return Lazy
+ */
+ public static <T> Lazy<T> of(final Supplier<T> supplier) {
+ return new Lazy<>(supplier);
+ }
+
+ private Lazy(final Supplier<T> supplier) {
+ this.supplier = supplier;
+ }
+
+ /**
+ * Returns the value. Value will be computed on first call.
+ *
+ * @return lazy value
+ */
+ @Nullable
+ @Override
+ public T get() {
+ return (supplier == null) ? value : computeValue();
+ }
+
+ @Nullable
+ private synchronized T computeValue() {
+ final Supplier<? extends T> s = supplier;
+ if (s != null) {
+ value = s.get();
+ supplier = null;
+ }
+ return value;
+ }
+
+}
--
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