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A Java library for the Twitter API
/*
* Copyright 2007 Yusuke Yamamoto
*
* Licensed 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 twitter4j.util;
import java.io.Serializable;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
/**
* @author Joern Huxhorn - jhuxhorn at googlemail.com
* @author Yusuke Yamamoto - yusuke at mac.com
* @since Twitter4J 2.1.0
*/
public final class TimeSpanConverter implements Serializable {
private static final int ONE_HOUR_IN_SECONDS = 60 * 60;
private static final int ONE_DAY_IN_SECONDS = 24 * ONE_HOUR_IN_SECONDS;
private static final int ONE_MONTH_IN_SECONDS = 30 * ONE_DAY_IN_SECONDS;
private static final long serialVersionUID = 8665013607650804076L;
private final MessageFormat[] formats = new MessageFormat[6];
private final SimpleDateFormat dateMonth;
private final SimpleDateFormat dateMonthYear;
private static final int NOW = 0;
private static final int N_SECONDS_AGO = 1;
private static final int A_MINUTE_AGO = 2;
private static final int N_MINUTES_AGO = 3;
private static final int AN_HOUR_AGO = 4;
private static final int N_HOURS_AGO = 5;
/**
* Constructs an instance with default locale
*/
public TimeSpanConverter() {
this(Locale.getDefault());
}
/**
* Constructs an instance with the specified locale
*
* @param locale locale
*/
public TimeSpanConverter(Locale locale) {
String language = locale.getLanguage();
if ("it".equals(language)) {
formats[NOW] = new MessageFormat("Ora");
formats[N_SECONDS_AGO] = new MessageFormat("{0} secondi fa");
formats[A_MINUTE_AGO] = new MessageFormat("1 minuto fa");
formats[N_MINUTES_AGO] = new MessageFormat("{0} minuti fa");
formats[AN_HOUR_AGO] = new MessageFormat("1 ora fa");
formats[N_HOURS_AGO] = new MessageFormat("{0} ore fa");
dateMonth = new SimpleDateFormat("d MMM", locale);
dateMonthYear = new SimpleDateFormat("d MMM yy", locale);
} else if ("kr".equals(language)) {
formats[NOW] = new MessageFormat("지금");
formats[N_SECONDS_AGO] = new MessageFormat("{0}초 전");
formats[A_MINUTE_AGO] = new MessageFormat("1분 전");
formats[N_MINUTES_AGO] = new MessageFormat("{0}분 전");
formats[AN_HOUR_AGO] = new MessageFormat("1시간 전");
formats[N_HOURS_AGO] = new MessageFormat("{0} ore fa");
dateMonth = new SimpleDateFormat("M월 d일", locale);
dateMonthYear = new SimpleDateFormat("yy년 M월 d일", locale);
} else if ("es".equals(language)) {
formats[NOW] = new MessageFormat("Ahora");
formats[N_SECONDS_AGO] = new MessageFormat("hace {0} segundos");
formats[A_MINUTE_AGO] = new MessageFormat("hace 1 minuto");
formats[N_MINUTES_AGO] = new MessageFormat("hace {0} minutos");
formats[AN_HOUR_AGO] = new MessageFormat("hace 1 hora");
formats[N_HOURS_AGO] = new MessageFormat("hace {0} horas");
dateMonth = new SimpleDateFormat("d MMM", locale);
dateMonthYear = new SimpleDateFormat("d MMM yy", locale);
} else if ("fr".equals(language)) {
formats[NOW] = new MessageFormat("Maintenant");
formats[N_SECONDS_AGO] = new MessageFormat("Il y a {0} secondes");
formats[A_MINUTE_AGO] = new MessageFormat("Il y a 1 minute");
formats[N_MINUTES_AGO] = new MessageFormat("Il y a {0} minutes");
formats[AN_HOUR_AGO] = new MessageFormat("Il y a 1 heure");
formats[N_HOURS_AGO] = new MessageFormat("Il y a {0} heures");
dateMonth = new SimpleDateFormat("d MMM", locale);
dateMonthYear = new SimpleDateFormat("d MMM yy", locale);
} else if ("de".equals(language)) {
formats[NOW] = new MessageFormat("Jetzt");
formats[N_SECONDS_AGO] = new MessageFormat("vor {0} Sekunden");
formats[A_MINUTE_AGO] = new MessageFormat("vor 1 Minute");
formats[N_MINUTES_AGO] = new MessageFormat("vor {0} Minuten");
formats[AN_HOUR_AGO] = new MessageFormat("vor 1 Stunde");
formats[N_HOURS_AGO] = new MessageFormat("vor {0} Stunden");
dateMonth = new SimpleDateFormat("d MMM", locale);
dateMonthYear = new SimpleDateFormat("d MMM yy", locale);
} else if ("ja".equals(language)) {
formats[NOW] = new MessageFormat("今");
formats[N_SECONDS_AGO] = new MessageFormat("{0}秒前");
formats[A_MINUTE_AGO] = new MessageFormat("1分前");
formats[N_MINUTES_AGO] = new MessageFormat("{0}分前");
formats[AN_HOUR_AGO] = new MessageFormat("1時間前");
formats[N_HOURS_AGO] = new MessageFormat("{0}時間前");
dateMonth = new SimpleDateFormat("M月d日", locale);
dateMonthYear = new SimpleDateFormat("yy年M月d日", locale);
} else {
formats[NOW] = new MessageFormat("now");
formats[N_SECONDS_AGO] = new MessageFormat("{0} seconds ago");
formats[A_MINUTE_AGO] = new MessageFormat("1 minute ago");
formats[N_MINUTES_AGO] = new MessageFormat("{0} minutes ago");
formats[AN_HOUR_AGO] = new MessageFormat("1 hour ago");
formats[N_HOURS_AGO] = new MessageFormat("{0} hours ago");
dateMonth = new SimpleDateFormat("d MMM", Locale.ENGLISH);
dateMonthYear = new SimpleDateFormat("d MMM yy", Locale.ENGLISH);
}
}
public String toTimeSpanString(Date date) {
return toTimeSpanString(date.getTime());
}
public String toTimeSpanString(long milliseconds) {
int deltaInSeconds = (int) ((System.currentTimeMillis() - milliseconds) / 1000);
if (deltaInSeconds >= ONE_DAY_IN_SECONDS) {
if (deltaInSeconds >= ONE_MONTH_IN_SECONDS) {
return dateMonthYear.format(new Date(milliseconds));
} else {
return dateMonth.format(new Date(milliseconds));
}
}
return toTimeSpanString(deltaInSeconds);
}
private String toTimeSpanString(int deltaInSeconds) {
if (deltaInSeconds <= 1) {
return formats[NOW].format(null);
} else if (deltaInSeconds < 60) {
return formats[N_SECONDS_AGO].format(new Object[]{deltaInSeconds});
}
if (deltaInSeconds < 45 * 60) {
int minutes = deltaInSeconds / 60;
if (minutes == 1) {
return formats[A_MINUTE_AGO].format(null);
}
return formats[N_MINUTES_AGO].format(new Object[]{minutes});
}
if (deltaInSeconds < 105 * 60) {// between 0:45 and 1:45 => 1
return formats[AN_HOUR_AGO].format(null);
}
int hours = ((deltaInSeconds + 15 * 60) / ONE_HOUR_IN_SECONDS);
return formats[N_HOURS_AGO].format(new Object[]{hours});
}
}