content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.csp.sentinel.util;
  
  import java.util.Collection;
  
  /**
   * Util class for checking arguments.
   *
   * @author Eric Zhao
   */
  public class AssertUtil {
  
      private AssertUtil() {}
  
      public static void assertNotNull(Object object, String message) {
          if (object == null) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void assertTrue(boolean value, String message) {
          if (!value) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void notEmpty(String string, String message) {
          if (StringUtil.isEmpty(string)) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void assertNotEmpty(Collection<?> collection, String message) {
          if (collection == null || collection.isEmpty()) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void assertNotBlank(String string, String message) {
          if (StringUtil.isBlank(string)) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void notNull(Object object, String message) {
          if (object == null) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void isTrue(boolean value, String message) {
          if (!value) {
              throw new IllegalArgumentException(message);
          }
      }
  
      public static void assertState(boolean condition, String message) {
          if (!condition) {
              throw new IllegalStateException(message);
          }
      }
  }
  