| /* |
| * 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 flex.messaging.util; |
| |
| /** |
| * Simple assert class which provides functionality similar to the assert API |
| * of JDK 1.4. |
| * |
| * Enable as follows: |
| * java -Dassert |
| * |
| * |
| */ |
| public class Assert |
| { |
| public static final boolean enableAssert = (System.getProperty("assert") != null); |
| |
| |
| /** |
| * If assertions are enabled and the passed in expression is false, throw an |
| * AssertionFailedError. |
| * |
| * @param expr expression whose truth value is tested |
| */ |
| public static void testAssertion(boolean expr) |
| { |
| if (enableAssert && !expr) |
| { |
| throw new AssertionFailedError(); |
| } |
| } |
| |
| /** |
| * If assertions are enabled and the passed in expression is false, throw an |
| * AssertionFailedError with the passed in message. |
| * |
| * @param expr expression whose truth value is tested |
| * @param message message contained in the AssertionFailedError when the expression |
| * is false and assertions are enabled. |
| */ |
| public static void testAssertion(boolean expr, String message) |
| { |
| if (enableAssert && !expr) |
| { |
| throw new AssertionFailedError(message); |
| } |
| } |
| |
| } |
| |