| /** |
| * 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.activemq.openwire.util; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| public class Wait { |
| |
| public static final long MAX_WAIT_MILLIS = 30 * 1000; |
| public static final int SLEEP_MILLIS = 1000; |
| |
| public interface Condition { |
| boolean isSatisified() throws Exception; |
| } |
| |
| public static boolean waitFor(Condition condition) throws Exception { |
| return waitFor(condition, MAX_WAIT_MILLIS); |
| } |
| |
| public static boolean waitFor(final Condition condition, final long duration) throws Exception { |
| return waitFor(condition, duration, SLEEP_MILLIS); |
| } |
| |
| public static boolean waitFor(final Condition condition, final long duration, final int sleepMillis) throws Exception { |
| |
| final long expiry = System.currentTimeMillis() + duration; |
| boolean conditionSatisified = condition.isSatisified(); |
| while (!conditionSatisified && System.currentTimeMillis() < expiry) { |
| TimeUnit.MILLISECONDS.sleep(sleepMillis); |
| conditionSatisified = condition.isSatisified(); |
| } |
| return conditionSatisified; |
| } |
| } |