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;
  
  import java.util.Collection;
  import java.util.List;
  
  public class CollectionUtil {
  
      private CollectionUtil() {
      }
  
  
      public static <T> boolean noItems(Collection<?> collection) {
          return collection == null || collection.isEmpty();
      }
  
  
      public static boolean hasItems(Collection<?> collection) {
          return !noItems(collection);
      }
  
      public static <T> T firstItem(List<T> list) {
          if (list == null || list.isEmpty()) {
              return null;
          }
          return list.get(0);
      }
      
  
      public static <T> T lastItem(List<T> list) {
          if (list == null || list.isEmpty()) {
              return null;
          }
          return list.get(list.size() - 1);
      }
  }
  