1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.util;
29
30 public class Asserts {
31
32 public static void check(final boolean expression, final String message) {
33 if (!expression) {
34 throw new IllegalStateException(message);
35 }
36 }
37
38 public static void check(final boolean expression, final String message, final Object... args) {
39 if (!expression) {
40 throw new IllegalStateException(String.format(message, args));
41 }
42 }
43
44 public static void check(final boolean expression, final String message, final Object arg) {
45 if (!expression) {
46 throw new IllegalStateException(String.format(message, arg));
47 }
48 }
49
50 public static void notNull(final Object object, final String name) {
51 if (object == null) {
52 throw new IllegalStateException(name + " is null");
53 }
54 }
55
56 public static void notEmpty(final CharSequence s, final String name) {
57 if (TextUtils.isEmpty(s)) {
58 throw new IllegalStateException(name + " is empty");
59 }
60 }
61
62 public static void notBlank(final CharSequence s, final String name) {
63 if (TextUtils.isBlank(s)) {
64 throw new IllegalStateException(name + " is blank");
65 }
66 }
67
68 }