| /* |
| * 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.solr.util; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.function.Supplier; |
| |
| import org.apache.solr.common.util.TimeSource; |
| |
| import static java.util.concurrent.TimeUnit.NANOSECONDS; |
| |
| public class TimeOut { |
| |
| private final long timeoutAt, startTime; |
| private final TimeSource timeSource; |
| |
| public TimeOut(long interval, TimeUnit unit, TimeSource timeSource) { |
| this.timeSource = timeSource; |
| startTime = timeSource.getTimeNs(); |
| this.timeoutAt = startTime + NANOSECONDS.convert(interval, unit); |
| } |
| |
| public boolean hasTimedOut() { |
| return timeSource.getTimeNs() > timeoutAt; |
| } |
| |
| public void sleep(long ms) throws InterruptedException { |
| timeSource.sleep(ms); |
| } |
| |
| public long timeLeft(TimeUnit unit) { |
| return unit.convert(timeoutAt - timeSource.getTimeNs(), NANOSECONDS); |
| } |
| |
| public long timeElapsed(TimeUnit unit) { |
| return unit.convert(timeSource.getTimeNs() - startTime, NANOSECONDS); |
| } |
| |
| /** |
| * Wait until the given {@link Supplier} returns true or the time out expires which ever happens first |
| * @param messageOnTimeOut the exception message to be used in case a TimeoutException is thrown |
| * @param supplier a {@link Supplier} that returns a {@link Boolean} value |
| * @throws InterruptedException if any thread has interrupted the current thread |
| * @throws TimeoutException if the timeout expires |
| */ |
| public void waitFor(String messageOnTimeOut, Supplier<Boolean> supplier) |
| throws InterruptedException, TimeoutException { |
| while (!supplier.get() && !hasTimedOut()) { |
| Thread.sleep(500); |
| } |
| if (hasTimedOut()) throw new TimeoutException(messageOnTimeOut); |
| } |
| } |