content: /*
   *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
   *  <p>
   *  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
   *  <p>
   *  http://www.apache.org/licenses/LICENSE-2.0
   *  <p>
   *  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 com.agentsflex.core.util;
  
  public class StringUtil {
  
      public static boolean noText(String string) {
          return !hasText(string);
      }
  
      public static boolean hasText(String string) {
          return string != null && !string.isEmpty() && containsText(string);
      }
  
      public static boolean hasText(String... strings) {
          for (String string : strings) {
              if (!hasText(string)) {
                  return false;
              }
          }
          return true;
      }
  
      private static boolean containsText(CharSequence str) {
          for (int i = 0; i < str.length(); i++) {
              if (!Character.isWhitespace(str.charAt(i))) {
                  return true;
              }
          }
          return false;
      }
  
      public static String getFirstWithText(String... strings) {
          if (strings == null) {
              return null;
          }
          for (String str : strings) {
              if (hasText(str)) {
                  return str;
              }
          }
          return null;
      }
  
      public static boolean isJsonObject(String jsonString) {
          if (noText(jsonString)) {
              return false;
          }
  
          jsonString = jsonString.trim();
          return jsonString.startsWith("{") && jsonString.endsWith("}");
      }
  
      public static boolean notJsonObject(String jsonString) {
          return !isJsonObject(jsonString);
      }
  
  
  }
  