✨ #12319 添加 JSON 工具类

src/main/java/org/b3log/solo/util/JSONs.java

+/*
+ * Copyright (c) 2010-2017, b3log.org & hacpai.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.b3log.solo.util;
+
+import org.b3log.latke.util.CollectionUtils;
+import org.json.JSONObject;
+
+/**
+ * JSON utilities.
+ *
+ * @author <a href="http://88250.b3log.org">Liang Ding</a>
+ * @version 1.0.0.0, Jul 16, 2017
+ * @since 2.3.0
+ */
+public final class JSONs {
+
+    /**
+     * Private constructor.
+     */
+    private JSONs() {
+    }
+
+    /**
+     * Clones a JSON object from the specified source object.
+     *
+     * @param src the specified source object
+     * @return cloned object
+     */
+    public static JSONObject clone(final JSONObject src) {
+        return new JSONObject(src, CollectionUtils.jsonArrayToArray(src.names(), String[].class));
+    }
+}
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