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agents-flex-core/src/main/java/com/agentsflex/core/util/CollectionUtil.java

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+/*
+ *  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);
+    }
+}