001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.camel.util; 018 019import java.text.DecimalFormat; 020import java.text.DecimalFormatSymbols; 021import java.text.NumberFormat; 022import java.util.Locale; 023 024/** 025 * Time utils. 026 * 027 * @version 028 */ 029public final class TimeUtils { 030 031 private TimeUtils() { 032 } 033 034 /** 035 * Prints the duration in a human readable format as X days Y hours Z minutes etc. 036 * 037 * @param uptime the uptime in millis 038 * @return the time used for displaying on screen or in logs 039 */ 040 public static String printDuration(double uptime) { 041 // Code taken from Karaf 042 // https://svn.apache.org/repos/asf/karaf/trunk/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java 043 044 NumberFormat fmtI = new DecimalFormat("###,###", new DecimalFormatSymbols(Locale.ENGLISH)); 045 NumberFormat fmtD = new DecimalFormat("###,##0.000", new DecimalFormatSymbols(Locale.ENGLISH)); 046 047 uptime /= 1000; 048 if (uptime < 60) { 049 return fmtD.format(uptime) + " seconds"; 050 } 051 uptime /= 60; 052 if (uptime < 60) { 053 long minutes = (long) uptime; 054 String s = fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute"); 055 return s; 056 } 057 uptime /= 60; 058 if (uptime < 24) { 059 long hours = (long) uptime; 060 long minutes = (long) ((uptime - hours) * 60); 061 String s = fmtI.format(hours) + (hours > 1 ? " hours" : " hour"); 062 if (minutes != 0) { 063 s += " " + fmtI.format(minutes) + (minutes > 1 ? " minutes" : " minute"); 064 } 065 return s; 066 } 067 uptime /= 24; 068 long days = (long) uptime; 069 long hours = (long) ((uptime - days) * 24); 070 String s = fmtI.format(days) + (days > 1 ? " days" : " day"); 071 if (hours != 0) { 072 s += " " + fmtI.format(hours) + (hours > 1 ? " hours" : " hour"); 073 } 074 return s; 075 } 076 077}