oshi.util.Util Maven / Gradle / Ivy
/**
* MIT License
*
* Copyright (c) 2010 - 2020 The OSHI Project Contributors: https://github.com/oshi/oshi/graphs/contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package oshi.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import oshi.annotation.concurrent.ThreadSafe;
/**
* General utility methods
*/
@ThreadSafe
public final 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.warn("Interrupted while sleeping for {} ms: {}", ms, e.getMessage());
Thread.currentThread().interrupt();
}
}
/**
* Tests if a String matches another String with a wildcard pattern.
*
* @param text
* The String to test
* @param pattern
* The String containing a wildcard pattern where ? represents a
* single character and * represents any number of characters. If the
* first character of the pattern is a carat (^) the test is
* performed against the remaining characters and the result of the
* test is the opposite.
* @return True if the String matches or if the first character is ^ and the
* remainder of the String does not match.
*/
public static boolean wildcardMatch(String text, String pattern) {
if (pattern.length() > 0 && pattern.charAt(0) == '^') {
return !wildcardMatch(text, pattern.substring(1));
}
return text.matches(pattern.replace("?", ".?").replace("*", ".*?"));
}
/**
* Tests if a String is either null or empty.
*
* @param s
* The string to test
* @return True if the String is either null or empty.
*/
public static boolean isBlank(String s) {
return s == null || s.isEmpty();
}
}