| /* |
| * 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.camel.util; |
| |
| import java.text.DecimalFormat; |
| import java.text.DecimalFormatSymbols; |
| import java.text.NumberFormat; |
| import java.util.Locale; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Time utils. |
| */ |
| public final class TimeUtils { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TimeUtils.class); |
| private static final Pattern NUMBERS_ONLY_STRING_PATTERN = Pattern.compile("^[-]?(\\d)+$", Pattern.CASE_INSENSITIVE); |
| private static final Pattern HOUR_REGEX_PATTERN = Pattern.compile("((\\d)*(\\d))h(our(s)?)?", Pattern.CASE_INSENSITIVE); |
| private static final Pattern MINUTES_REGEX_PATTERN = Pattern.compile("((\\d)*(\\d))m(in(ute(s)?)?)?", Pattern.CASE_INSENSITIVE); |
| private static final Pattern SECONDS_REGEX_PATTERN = Pattern.compile("((\\d)*(\\d))s(ec(ond)?(s)?)?", Pattern.CASE_INSENSITIVE); |
| |
| private TimeUtils() { |
| } |
| |
| /** |
| * Prints the duration in a human readable format as X days Y hours Z minutes etc. |
| * |
| * @param uptime the uptime in millis |
| * @return the time used for displaying on screen or in logs |
| */ |
| public static String printDuration(double uptime) { |
| // Code taken from Karaf |
| // https://svn.apache.org/repos/asf/karaf/trunk/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java |
| |
| NumberFormat fmtI = new DecimalFormat("###,###", new DecimalFormatSymbols(Locale.ENGLISH)); |
| NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH)); |
| |
| uptime /= 1000; |
| if (uptime < 60) { |
| return fmtD.format(uptime) + " seconds"; |
| } |
| uptime /= 60; |
| if (uptime < 60) { |
| long minutes = (long) uptime; |
| String s = fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute"); |
| return s; |
| } |
| uptime /= 60; |
| if (uptime < 24) { |
| long hours = (long) uptime; |
| long minutes = (long) ((uptime - hours) * 60); |
| String s = fmtI.format(hours) + (hours > 1 ? " hours" : " hour"); |
| if (minutes != 0) { |
| s += " " + fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute"); |
| } |
| return s; |
| } |
| uptime /= 24; |
| long days = (long) uptime; |
| long hours = (long) ((uptime - days) * 24); |
| String s = fmtI.format(days) + (days > 1 ? " days" : " day"); |
| if (hours != 0) { |
| s += " " + fmtI.format(hours) + (hours > 1 ? " hours" : " hour"); |
| } |
| return s; |
| } |
| |
| public static long toMilliSeconds(String source) throws IllegalArgumentException { |
| // quick conversion if its only digits |
| boolean digit = true; |
| for (int i = 0; i < source.length(); i++) { |
| char ch = source.charAt(i); |
| // special for fist as it can be negative number |
| if (i == 0 && ch == '-') { |
| continue; |
| } |
| // quick check if its 0..9 |
| if (ch < '0' || ch > '9') { |
| digit = false; |
| break; |
| } |
| } |
| if (digit) { |
| return Long.valueOf(source); |
| } |
| |
| long milliseconds = 0; |
| boolean foundFlag = false; |
| |
| checkCorrectnessOfPattern(source); |
| Matcher matcher; |
| |
| matcher = createMatcher(NUMBERS_ONLY_STRING_PATTERN, source); |
| if (matcher.find()) { |
| // Note: This will also be used for regular numeric strings. |
| // This String -> long converter will be used for all strings. |
| milliseconds = Long.valueOf(source); |
| } else { |
| matcher = createMatcher(HOUR_REGEX_PATTERN, source); |
| if (matcher.find()) { |
| milliseconds = milliseconds + (3600000 * Long.valueOf(matcher.group(1))); |
| foundFlag = true; |
| } |
| |
| matcher = createMatcher(MINUTES_REGEX_PATTERN, source); |
| if (matcher.find()) { |
| long minutes = Long.valueOf(matcher.group(1)); |
| if ((minutes > 59) && foundFlag) { |
| throw new IllegalArgumentException("Minutes should contain a valid value between 0 and 59: " + source); |
| } |
| foundFlag = true; |
| milliseconds = milliseconds + (60000 * minutes); |
| } |
| |
| matcher = createMatcher(SECONDS_REGEX_PATTERN, source); |
| if (matcher.find()) { |
| long seconds = Long.valueOf(matcher.group(1)); |
| if ((seconds > 59) && foundFlag) { |
| throw new IllegalArgumentException("Seconds should contain a valid value between 0 and 59: " + source); |
| } |
| foundFlag = true; |
| milliseconds = milliseconds + (1000 * seconds); |
| } |
| |
| // No pattern matched... initiating fallback check and conversion (if required). |
| // The source at this point may contain illegal values or special characters |
| if (!foundFlag) { |
| milliseconds = Long.valueOf(source); |
| } |
| } |
| |
| LOG.trace("source: [{}], milliseconds: {}", source, milliseconds); |
| |
| return milliseconds; |
| } |
| |
| private static void checkCorrectnessOfPattern(String source) { |
| //replace only numbers once |
| Matcher matcher = createMatcher(NUMBERS_ONLY_STRING_PATTERN, source); |
| String replaceSource = matcher.replaceFirst(""); |
| |
| //replace hour string once |
| matcher = createMatcher(HOUR_REGEX_PATTERN, replaceSource); |
| if (matcher.find() && matcher.find()) { |
| throw new IllegalArgumentException("Hours should not be specified more then once: " + source); |
| } |
| replaceSource = matcher.replaceFirst(""); |
| |
| //replace minutes once |
| matcher = createMatcher(MINUTES_REGEX_PATTERN, replaceSource); |
| if (matcher.find() && matcher.find()) { |
| throw new IllegalArgumentException("Minutes should not be specified more then once: " + source); |
| } |
| replaceSource = matcher.replaceFirst(""); |
| |
| //replace seconds once |
| matcher = createMatcher(SECONDS_REGEX_PATTERN, replaceSource); |
| if (matcher.find() && matcher.find()) { |
| throw new IllegalArgumentException("Seconds should not be specified more then once: " + source); |
| } |
| replaceSource = matcher.replaceFirst(""); |
| |
| if (replaceSource.length() > 0) { |
| throw new IllegalArgumentException("Illegal characters: " + source); |
| } |
| } |
| |
| private static Matcher createMatcher(Pattern pattern, String source) { |
| return pattern.matcher(source); |
| } |
| |
| } |