com.hydraql.common.lang.Assert Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.hydraql.common.lang;

/**
 * @author leojie 2022/11/20 09:19
 */
public class Assert {
  public static void notNull(Object obj, String message) {
    checkArgument(obj != null, message);
  }

  public static void checkArgument(boolean expression, String errorMessage) {
    if (!expression) {
      throw new IllegalArgumentException(errorMessage);
    }
  }

  public static void checkArgument(boolean expression) {
    if (!expression) {
      throw new IllegalArgumentException();
    }
  }

  public static void checkState(boolean expression) {
    if (!expression) {
      throw new IllegalStateException();
    }
  }

  public static void checkState(boolean expression, String errorMessage) {
    if (!expression) {
      throw new IllegalStateException(errorMessage);
    }
  }

  public static  T checkNotNull(T reference) {
    if (reference == null) {
      throw new NullPointerException();
    } else {
      return reference;
    }
  }

  public static  T checkNotNull(T reference, String obj) {
    if (reference == null) {
      throw new NullPointerException(obj + " is not null.");
    } else {
      return reference;
    }
  }
}