forked from plusone/plusone-commons
72 lines
2.5 KiB
Java
72 lines
2.5 KiB
Java
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/*
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* Copyright 2022-2023 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package xyz.zhouxy.plusone.commons.util;
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import java.util.function.Supplier;
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import javax.annotation.Nonnull;
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/**
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* 断言工具
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*
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* <p>
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* 不封装过多判断逻辑，鼓励充分使用项目中的工具类进行逻辑判断。
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* 本工具类基本仅对表达式进行判断，并在表达式为 {@code false} 时抛出对应异常。
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*/
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public class AssertTools {
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public static <T> void checkParameterNotNull(String paramName, T value) {
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checkCondition(value != null,
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() -> new IllegalArgumentException(String.format("The parameter \"%s\" cannot be null.", paramName)));
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}
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public static <T> void checkParameterNotNull(T obj, String errMsg) {
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checkCondition(obj != null, () -> new IllegalArgumentException(errMsg));
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}
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public static <T> void checkParameterNotNull(T obj, String format, Object... args) {
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checkCondition(obj != null, () -> new IllegalArgumentException(String.format(format, args)));
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}
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public static void checkParameter(boolean condition, String errMsg) {
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checkCondition(condition, () -> new IllegalArgumentException(errMsg));
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}
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public static void checkParameter(boolean condition, String format, Object... args) {
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checkCondition(condition, () -> new IllegalArgumentException(String.format(format, args)));
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}
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public static void checkState(boolean condition, String errMsg) {
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checkCondition(condition, () -> new IllegalStateException(errMsg));
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}
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public static void checkState(boolean condition, String format, Object... args) {
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checkCondition(condition, () -> new IllegalStateException(String.format(format, args)));
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}
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public static <T extends Exception> void checkCondition(boolean condition, @Nonnull Supplier<T> e)
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throws T {
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if (!condition) {
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throw e.get();
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}
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}
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private AssertTools() {
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throw new IllegalStateException("Utility class");
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}
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}
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