/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.utils;
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import java.text.MessageFormat;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.ResourceBundle;
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/**
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* Utility class of time functions.
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*
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* @author James Moger
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*
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*/
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public class TimeUtils {
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public static final long MIN = 1000 * 60L;
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public static final long HALFHOUR = MIN * 30L;
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public static final long ONEHOUR = HALFHOUR * 2;
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public static final long ONEDAY = ONEHOUR * 24L;
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public static final long ONEYEAR = ONEDAY * 365L;
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private final ResourceBundle translation;
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public TimeUtils() {
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this(null);
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}
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public TimeUtils(ResourceBundle translation) {
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this.translation = translation;
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}
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/**
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* Returns true if date is today.
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*
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* @param date
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* @return true if date is today
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*/
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public static boolean isToday(Date date) {
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return (System.currentTimeMillis() - date.getTime()) < ONEDAY;
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}
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/**
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* Returns true if date is yesterday.
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*
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* @param date
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* @return true if date is yesterday
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*/
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public static boolean isYesterday(Date date) {
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Calendar cal = Calendar.getInstance();
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cal.setTime(new Date());
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cal.add(Calendar.DATE, -1);
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SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
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return df.format(cal.getTime()).equals(df.format(date));
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}
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/**
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* Returns the string representation of the duration as days, months and/or
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* years.
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*
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* @param days
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* @return duration as string in days, months, and/or years
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*/
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public String duration(int days) {
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if (days <= 60) {
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return (days > 1 ? translate(days, "gb.duration.days", "{0} days") : translate("gb.duration.oneDay", "1 day"));
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} else if (days < 365) {
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int rem = days % 30;
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return translate(((days / 30) + (rem >= 15 ? 1 : 0)), "gb.duration.months", "{0} months");
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} else {
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int years = days / 365;
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int rem = days % 365;
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String yearsString = (years > 1 ? translate(years, "gb.duration.years", "{0} years") : translate("gb.duration.oneYear", "1 year"));
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if (rem < 30) {
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if (rem == 0) {
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return yearsString;
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} else {
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return yearsString + (rem >= 15 ? (", " + translate("gb.duration.oneMonth", "1 month")): "");
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}
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} else {
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int months = rem / 30;
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int remDays = rem % 30;
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if (remDays >= 15) {
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months++;
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}
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String monthsString = yearsString + ", "
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+ (months > 1 ? translate(months, "gb.duration.months", "{0} months") : translate("gb.duration.oneMonth", "1 month"));
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return monthsString;
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}
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}
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}
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/**
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* Returns the number of minutes ago between the start time and the end
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* time.
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*
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* @param date
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* @param endTime
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* @param roundup
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* @return difference in minutes
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*/
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public static int minutesAgo(Date date, long endTime, boolean roundup) {
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long diff = endTime - date.getTime();
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int mins = (int) (diff / MIN);
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if (roundup && (diff % MIN) >= 30) {
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mins++;
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}
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return mins;
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}
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/**
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* Return the difference in minutes between now and the date.
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*
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* @param date
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* @param roundup
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* @return minutes ago
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*/
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public static int minutesAgo(Date date, boolean roundup) {
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return minutesAgo(date, System.currentTimeMillis(), roundup);
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}
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/**
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* Return the difference in hours between now and the date.
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*
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* @param date
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* @param roundup
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* @return hours ago
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*/
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public static int hoursAgo(Date date, boolean roundup) {
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long diff = System.currentTimeMillis() - date.getTime();
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int hours = (int) (diff / ONEHOUR);
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if (roundup && (diff % ONEHOUR) >= HALFHOUR) {
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hours++;
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}
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return hours;
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}
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/**
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* Return the difference in days between now and the date.
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*
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* @param date
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* @return days ago
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*/
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public static int daysAgo(Date date) {
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long today = ONEDAY * (System.currentTimeMillis()/ONEDAY);
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long day = ONEDAY * (date.getTime()/ONEDAY);
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long diff = today - day;
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int days = (int) (diff / ONEDAY);
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return days;
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}
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public String today() {
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return translate("gb.time.today", "today");
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}
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public String yesterday() {
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return translate("gb.time.yesterday", "yesterday");
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}
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/**
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* Returns the string representation of the duration between now and the
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* date.
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*
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* @param date
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* @return duration as a string
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*/
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public String timeAgo(Date date) {
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return timeAgo(date, false);
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}
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/**
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* Returns the CSS class for the date based on its age from Now.
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*
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* @param date
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* @return the css class
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*/
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public String timeAgoCss(Date date) {
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return timeAgo(date, true);
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}
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/**
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* Returns the string representation of the duration OR the css class for
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* the duration.
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*
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* @param date
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* @param css
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* @return the string representation of the duration OR the css class
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*/
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private String timeAgo(Date date, boolean css) {
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if (isToday(date) || isYesterday(date)) {
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int mins = minutesAgo(date, true);
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if (mins >= 120) {
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if (css) {
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return "age1";
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}
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int hours = hoursAgo(date, true);
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if (hours > 23) {
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return yesterday();
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} else {
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return translate(hours, "gb.time.hoursAgo", "{0} hours ago");
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}
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}
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if (css) {
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return "age0";
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}
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if (mins > 2) {
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return translate(mins, "gb.time.minsAgo", "{0} mins ago");
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}
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return translate("gb.time.justNow", "just now");
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} else {
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int days = daysAgo(date);
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if (css) {
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if (days <= 7) {
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return "age2";
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} if (days <= 30) {
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return "age3";
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} else {
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return "age4";
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}
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}
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if (days < 365) {
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if (days <= 30) {
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return translate(days, "gb.time.daysAgo", "{0} days ago");
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} else if (days <= 90) {
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int weeks = days / 7;
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if (weeks == 12) {
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return translate(3, "gb.time.monthsAgo", "{0} months ago");
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} else {
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return translate(weeks, "gb.time.weeksAgo", "{0} weeks ago");
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}
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}
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int months = days / 30;
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int weeks = (days % 30) / 7;
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if (weeks >= 2) {
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months++;
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}
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return translate(months, "gb.time.monthsAgo", "{0} months ago");
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} else if (days == 365) {
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return translate("gb.time.oneYearAgo", "1 year ago");
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} else {
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int yr = days / 365;
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days = days % 365;
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int months = (yr * 12) + (days / 30);
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if (months > 23) {
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return translate(yr, "gb.time.yearsAgo", "{0} years ago");
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} else {
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return translate(months, "gb.time.monthsAgo", "{0} months ago");
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}
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}
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}
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}
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private String translate(String key, String defaultValue) {
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String value = defaultValue;
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if (translation != null && translation.containsKey(key)) {
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String aValue = translation.getString(key);
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if (!StringUtils.isEmpty(aValue)) {
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value = aValue;
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}
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}
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return value;
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}
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private String translate(int val, String key, String defaultPattern) {
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String pattern = defaultPattern;
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if (translation != null && translation.containsKey(key)) {
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String aValue = translation.getString(key);
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if (!StringUtils.isEmpty(aValue)) {
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pattern = aValue;
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}
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}
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return MessageFormat.format(pattern, val);
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}
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/**
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* Convert a frequency string into minutes.
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*
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* @param frequency
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* @return minutes
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*/
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public static int convertFrequencyToMinutes(String frequency) {
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// parse the frequency
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frequency = frequency.toLowerCase();
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int mins = 60;
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if (!StringUtils.isEmpty(frequency)) {
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try {
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String str = frequency.trim();
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if (frequency.indexOf(' ') > -1) {
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str = str.substring(0, str.indexOf(' ')).trim();
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}
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mins = (int) Float.parseFloat(str);
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} catch (NumberFormatException e) {
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}
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if (mins < 5) {
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mins = 5;
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}
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}
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if (frequency.indexOf("day") > -1) {
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// convert to minutes
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mins *= 1440;
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} else if (frequency.indexOf("hour") > -1) {
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// convert to minutes
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mins *= 60;
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}
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return mins;
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}
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}
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