| /* $Id$ |
| * |
| * 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 org.apache.etch.util; |
| |
| /** |
| * Portable assertion checking. |
| */ |
| public class Assertion |
| { |
| /** |
| * Checks a value for being true and if not it throws an exception |
| * with the specified description in the message. |
| * |
| * @param value a boolean value which should be true (e.g., x < 100 ). |
| * |
| * @param msg a description of value (e.g., "x < 100" ). |
| * |
| * @throws AssertionException when value is not true. |
| */ |
| public static void check( boolean value, String msg ) |
| throws AssertionException |
| { |
| if (!value) |
| throw new AssertionException( "assertion failed: "+msg ); |
| } |
| |
| /** |
| * Checks a value for being true and if not it throws an exception |
| * with the specified description in the message. |
| * |
| * @param value a boolean value which should be true (e.g., x < 100 ). |
| * |
| * @param fmt a description of value (e.g., "x (%d) < 100" ). |
| * |
| * @param args args for the format. |
| * |
| * @throws AssertionException when value is not true. |
| */ |
| public static void check( boolean value, String fmt, Object ... args ) |
| throws AssertionException |
| { |
| if (!value) |
| throw new AssertionException( "assertion failed: "+ |
| String.format( fmt, args ) ); |
| } |
| } |