49 lines
1.3 KiB
Java
49 lines
1.3 KiB
Java
/*
|
|
* Copyright (C) 2008 Google Inc.
|
|
*
|
|
* 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 org.mcteam.ancientgates.gson;
|
|
|
|
/**
|
|
* A simple utility class used to check method Preconditions.
|
|
*
|
|
* <pre>
|
|
* public long divideBy(long value) {
|
|
* Preconditions.checkArgument(value != 0);
|
|
* return this.value / value;
|
|
* }
|
|
* </pre>
|
|
*
|
|
* @author Inderjeet Singh
|
|
* @author Joel Leitch
|
|
*/
|
|
final class Preconditions {
|
|
public static void checkNotNull(Object obj) {
|
|
checkArgument(obj != null);
|
|
}
|
|
|
|
public static void checkArgument(boolean condition) {
|
|
if (!condition) {
|
|
throw new IllegalArgumentException("condition failed: " + condition);
|
|
}
|
|
}
|
|
|
|
public static void checkState(boolean condition) {
|
|
if (!condition) {
|
|
throw new IllegalArgumentException("condition failed: " + condition);
|
|
}
|
|
}
|
|
}
|