oshi.util.Util Maven / Gradle / Ivy
/**
* Oshi (https://github.com/dblock/oshi)
*
* Copyright (c) 2010 - 2016 The Oshi Project Team
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Maintainers:
* dblock[at]dblock[dot]org
* widdis[at]gmail[dot]com
* enrico.bianchi[at]gmail[dot]com
*
* Contributors:
* https://github.com/dblock/oshi/graphs/contributors
*/
package oshi.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* General utility methods
*
* @author widdis[at]gmail[dot]com
*/
public class Util {
private static final Logger LOG = LoggerFactory.getLogger(Util.class);
private Util() {
}
/**
* Sleeps for the specified number of milliseconds.
*
* @param ms
* How long to sleep
*/
public static void sleep(long ms) {
try {
LOG.trace("Sleeping for {} ms", ms);
Thread.sleep(ms);
} catch (InterruptedException e) { // NOSONAR squid:S2142
LOG.trace("", e);
LOG.warn("Interrupted while sleeping for {} ms", ms);
}
}
/**
* Sleeps for the specified number of milliseconds after the given system
* time in milliseconds. If that number of milliseconds has already elapsed,
* does nothing.
*
* @param startTime
* System time in milliseconds to sleep after
* @param ms
* How long after startTime to sleep
*/
public static void sleepAfter(long startTime, long ms) {
long now = System.currentTimeMillis();
long until = startTime + ms;
LOG.trace("Sleeping until {}", until);
if (now < until) {
sleep(until - now);
}
}
}