001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.test;
016    
017    import java.util.concurrent.Callable;
018    import java.util.concurrent.TimeUnit;
019    
020    /**
021     * @author Andr?? de Oliveira
022     */
023    public class IdempotentRetryAssert {
024    
025            public static <T> T retryAssert(
026                            long timeout, TimeUnit timeUnit, Callable<T> callable)
027                    throws Exception {
028    
029                    long deadline = System.currentTimeMillis() + timeUnit.toMillis(timeout);
030    
031                    while (true) {
032                            try {
033                                    return callable.call();
034                            }
035                            catch (AssertionError ae) {
036                                    if (System.currentTimeMillis() > deadline) {
037                                            throw ae;
038                                    }
039                            }
040                    }
041            }
042    
043    }