001/* 002 * ==================================================================== 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, 014 * software distributed under the License is distributed on an 015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 016 * KIND, either express or implied. See the License for the 017 * specific language governing permissions and limitations 018 * under the License. 019 * ==================================================================== 020 * 021 * This software consists of voluntary contributions made by many 022 * individuals on behalf of the Apache Software Foundation. For more 023 * information on the Apache Software Foundation, please see 024 * <http://www.apache.org/>. 025 * 026 */ 027 028package org.apache.http.util; 029 030public class Asserts { 031 032 public static void check(final boolean expression, final String message) { 033 if (!expression) { 034 throw new IllegalStateException(message); 035 } 036 } 037 038 public static void check(final boolean expression, final String message, final Object... args) { 039 if (!expression) { 040 throw new IllegalStateException(String.format(message, args)); 041 } 042 } 043 044 public static void check(final boolean expression, final String message, final Object arg) { 045 if (!expression) { 046 throw new IllegalStateException(String.format(message, arg)); 047 } 048 } 049 050 public static void notNull(final Object object, final String name) { 051 if (object == null) { 052 throw new IllegalStateException(name + " is null"); 053 } 054 } 055 056 public static void notEmpty(final CharSequence s, final String name) { 057 if (TextUtils.isEmpty(s)) { 058 throw new IllegalStateException(name + " is empty"); 059 } 060 } 061 062 public static void notBlank(final CharSequence s, final String name) { 063 if (TextUtils.isBlank(s)) { 064 throw new IllegalStateException(name + " is blank"); 065 } 066 } 067 068}