rebase from live enviornment

wp/plugins/woocommerce/vendor/automattic/jetpack-status/src/class-cache.php

@@ -0,0 +1,55 @@
+<?php
+/**
+ * A static in-process cache for blog data.
+ *
+ * @package automattic/jetpack-status
+ */
+
+namespace Automattic\Jetpack\Status;
+
+/**
+ * A static in-process cache for blog data.
+ *
+ * For internal use only. Do not use this externally.
+ */
+class Cache {
+	/**
+	 * Cached data;
+	 *
+	 * @var array[]
+	 */
+	private static $cache = array();
+
+	/**
+	 * Get a value from the cache.
+	 *
+	 * @param string $key Key to fetch.
+	 * @param mixed  $default Default value to return if the key is not set.
+	 * @returns mixed Data.
+	 */
+	public static function get( $key, $default = null ) {
+		$blog_id = get_current_blog_id();
+		return isset( self::$cache[ $blog_id ] ) && array_key_exists( $key, self::$cache[ $blog_id ] ) ? self::$cache[ $blog_id ][ $key ] : $default;
+	}
+
+	/**
+	 * Set a value in the cache.
+	 *
+	 * @param string $key Key to set.
+	 * @param mixed  $value Value to store.
+	 */
+	public static function set( $key, $value ) {
+		$blog_id                         = get_current_blog_id();
+		self::$cache[ $blog_id ][ $key ] = $value;
+	}
+
+	/**
+	 * Clear the cache.
+	 *
+	 * This is intended for use in unit tests.
+	 */
+	public static function clear() {
+		self::$cache = array();
+	}
+
+}