org.eclipse.mylyn.commons.core/src/org/eclipse/mylyn/commons/core/DateUtil.java - mylyn/org.eclipse.mylyn.commons - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2011 Tasktop Technologies and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/

 package org.eclipse.mylyn.commons.core;

 import java.util.Calendar;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.mylyn.internal.commons.core.Messages;
 import org.eclipse.osgi.util.NLS;

 /**
  * Used for formatting dates.
  *
  * @author Mik Kersten
  * @since 3.0
  * @noinstantiate This class is not intended to be instantiated by clients.
  */
 public class DateUtil {

 	public static String getIsoFormattedDate(Calendar calendar) {
 		try {
 			int monthInt = (calendar.get(Calendar.MONTH) + 1);
 			String month = "" + monthInt; //$NON-NLS-1$
 			if (monthInt < 10) {
 				month = "0" + month; //$NON-NLS-1$
 			}
 			int dateInt = (calendar.get(Calendar.DATE));
 			String date = "" + dateInt; //$NON-NLS-1$
 			if (dateInt < 10) {
 				date = "0" + date; //$NON-NLS-1$
 			}
 			return calendar.get(Calendar.YEAR) + "-" + month + "-" + date; //$NON-NLS-1$ //$NON-NLS-2$
 		} catch (Exception e) {
 			return "<unresolved date>"; //$NON-NLS-1$
 		}
 	}

 	/**
 	 * @return Time formatted according to: http://www.iso.org/iso/date_and_time_format
 	 */
 	public static String getIsoFormattedDateTime(Calendar calendar) {
 		return getIsoFormattedDate(calendar) + "T" + calendar.get(Calendar.HOUR) + "-" + calendar.get(Calendar.MINUTE) //$NON-NLS-1$ //$NON-NLS-2$
 				+ "-" + calendar.get(Calendar.SECOND); //$NON-NLS-1$
 	}

 	/**
 	 * Returns the time in the format: HHH:MM. If <code>includeSeconds</code> is true, the returned format is:
 	 * HHH:MM:SS.
 	 *
 	 * @since 3.5
 	 */
 	public static String getFormattedDurationShort(long duration, boolean includeSeconds) {
 		if (duration <= 0) {
 			return "00:00"; //$NON-NLS-1$
 		}

 		long totalSeconds = duration / 1000;
 		long remainderSeconds = totalSeconds % 60;
 		long totalMinutes = totalSeconds / 60;
 		long remainderMinutes = totalMinutes % 60;
 		long totalHours = totalMinutes / 60;

 		StringBuffer sb = new StringBuffer(8);
 		if (totalHours < 10) {
 			sb.append("0"); //$NON-NLS-1$
 		}
 		sb.append(totalHours);
 		sb.append(":"); //$NON-NLS-1$
 		if (remainderMinutes < 10) {
 			sb.append("0"); //$NON-NLS-1$
 		}
 		sb.append(remainderMinutes);
 		if (includeSeconds) {
 			sb.append(":"); //$NON-NLS-1$
 			if (remainderSeconds < 10) {
 				sb.append("0"); //$NON-NLS-1$
 			}
 			sb.append(remainderSeconds);
 		}
 		return sb.toString();
 	}

 	/** Returns the time in the format: HHH:MM */
 	public static String getFormattedDurationShort(long duration) {
 		return getFormattedDurationShort(duration, false);
 	}

 	/**
 	 * @deprecated The result of this method is not properly localized.
 	 */
 	@Deprecated
 	public static String getFormattedDuration(long duration, boolean includeSeconds) {
 		long seconds = duration / 1000;
 		long minutes = 0;
 		long hours = 0;
 		// final long SECOND = 1000;
 		final long MIN = 60;
 		final long HOUR = MIN * 60;
 		String formatted = ""; //$NON-NLS-1$

 		String hour = ""; //$NON-NLS-1$
 		String min = ""; //$NON-NLS-1$
 		String sec = ""; //$NON-NLS-1$
 		if (seconds >= HOUR) {
 			hours = seconds / HOUR;
 			if (hours == 1) {
 				hour = hours + " hour "; //$NON-NLS-1$
 			} else if (hours > 1) {
 				hour = hours + " hours "; //$NON-NLS-1$
 			}
 			seconds -= hours * HOUR;

 			minutes = seconds / MIN;
 			if (minutes == 1) {
 				min = minutes + " minute "; //$NON-NLS-1$
 			} else if (minutes != 1) {
 				min = minutes + " minutes "; //$NON-NLS-1$
 			}
 			seconds -= minutes * MIN;
 			if (seconds == 1) {
 				sec = seconds + " second"; //$NON-NLS-1$
 			} else if (seconds > 1) {
 				sec = seconds + " seconds"; //$NON-NLS-1$
 			}
 			formatted += hour + min;
 			if (includeSeconds) {
 				formatted += sec;
 			}
 		} else if (seconds >= MIN) {
 			minutes = seconds / MIN;
 			if (minutes == 1) {
 				min = minutes + " minute "; //$NON-NLS-1$
 			} else if (minutes != 1) {
 				min = minutes + " minutes "; //$NON-NLS-1$
 			}
 			seconds -= minutes * MIN;
 			if (seconds == 1) {
 				sec = seconds + " second"; //$NON-NLS-1$
 			} else if (seconds > 1) {
 				sec = seconds + " seconds"; //$NON-NLS-1$
 			}
 			formatted += min;
 			if (includeSeconds) {
 				formatted += sec;
 			}
 		} else {
 			if (seconds == 1) {
 				sec = seconds + " second"; //$NON-NLS-1$
 			} else if (seconds > 1) {
 				sec = seconds + " seconds"; //$NON-NLS-1$
 			}
 			if (includeSeconds) {
 				formatted += sec;
 			}
 		}
 		return formatted;
 	}

 	private static long MILLIS_SECOND = 1000;

 	private static long MILLIS_MINUTE = 60 * MILLIS_SECOND;

 	private static long MILLIS_HOUR = 60 * MILLIS_MINUTE;

 	private static long MILLIS_DAY = 24 * MILLIS_HOUR;

 	private static long MILLIS_WEEK = 7 * MILLIS_DAY;

 	private static long MILLIS_MONTH = 4 * MILLIS_WEEK;

 	private enum Period {

 		MONTH(MILLIS_MONTH, Messages.DateUtil_month_single, Messages.DateUtil_month_multi), //
 		WEEK(MILLIS_WEEK, Messages.DateUtil_week, Messages.DateUtil_weeks), //
 		DAY(MILLIS_DAY, Messages.DateUtil_day, Messages.DateUtil_days), //
 		HOUR(MILLIS_HOUR, Messages.DateUtil_hour, Messages.DateUtil_hours), //
 		MINUTE(MILLIS_MINUTE, Messages.DateUtil_minute, Messages.DateUtil_minutes), //
 		SECOND(MILLIS_SECOND, Messages.DateUtil_second, Messages.DateUtil_seconds);

 		private final long duration;

 		private final String singularLabel;

 		private final String pluralLabel;

 		Period(long duration, String singularLabel, String pluralLabel) {
 			this.duration = duration;
 			this.singularLabel = singularLabel;
 			this.pluralLabel = pluralLabel;
 		}

 		public String toString(long time) {
 			long count = time / duration;
 			if (count <= 1) {
 				return NLS.bind(singularLabel, count);
 			} else {
 				return NLS.bind(pluralLabel, count);
 			}
 		}

 	}

 	private static class PeriodString {

 		private final Period period;

 		private final long duration;

 		private PeriodString next;

 		public PeriodString(Period period, long duration) {
 			Assert.isNotNull(period);
 			this.period = period;
 			this.duration = duration;
 		}

 		public void append(PeriodString next) {
 			this.next = next;
 		}

 		@Override
 		public String toString() {
 			return period.toString(duration) + ((next != null) ? " " + next.toString() : ""); //$NON-NLS-1$ //$NON-NLS-2$
 		}

 	}

 	/**
 	 * @since 3.5
 	 */
 	public static String getRelative(long time) {
 		long diff = System.currentTimeMillis() - time;
 		String duration = getRelativeDuration(Math.abs(diff));
 		if (duration.length() > 0) {
 			if (diff > 0) {
 				return NLS.bind(Messages.DateUtil_ago, duration);
 			} else {
 				return NLS.bind(Messages.DateUtil_in, duration);
 			}
 		}
 		return ""; //$NON-NLS-1$
 	}

 	/**
 	 * @since 3.5
 	 */
 	public static String getRelativeDuration(long diff) {
 		PeriodString string = null;
 		for (Period period : Period.values()) {
 			boolean wasSet = (string != null);
 			if (diff >= period.duration) {
 				if (string == null) {
 					string = new PeriodString(period, diff);
 				} else {
 					string.append(new PeriodString(period, diff));
 					// do not add more than two segments
 					break;
 				}
 				diff -= (diff / period.duration) * period.duration;
 			}
 			// only return more than one segment if the second segment follows the first one directly
 			if (wasSet) {
 				break;
 			}
 		}
 		return (string != null) ? string.toString() : ""; //$NON-NLS-1$
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004, 2011 Tasktop Technologies and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/

	package org.eclipse.mylyn.commons.core;

	import java.util.Calendar;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.mylyn.internal.commons.core.Messages;
	import org.eclipse.osgi.util.NLS;

	/**
	* Used for formatting dates.
	*
	* @author Mik Kersten
	* @since 3.0
	* @noinstantiate This class is not intended to be instantiated by clients.
	*/
	public class DateUtil {

	public static String getIsoFormattedDate(Calendar calendar) {
	try {
	int monthInt = (calendar.get(Calendar.MONTH) + 1);
	String month = "" + monthInt; //$NON-NLS-1$
	if (monthInt < 10) {
	month = "0" + month; //$NON-NLS-1$
	}
	int dateInt = (calendar.get(Calendar.DATE));
	String date = "" + dateInt; //$NON-NLS-1$
	if (dateInt < 10) {
	date = "0" + date; //$NON-NLS-1$
	}
	return calendar.get(Calendar.YEAR) + "-" + month + "-" + date; //$NON-NLS-1$ //$NON-NLS-2$
	} catch (Exception e) {
	return "<unresolved date>"; //$NON-NLS-1$
	}
	}

	/**
	* @return Time formatted according to: http://www.iso.org/iso/date_and_time_format
	*/
	public static String getIsoFormattedDateTime(Calendar calendar) {
	return getIsoFormattedDate(calendar) + "T" + calendar.get(Calendar.HOUR) + "-" + calendar.get(Calendar.MINUTE) //$NON-NLS-1$ //$NON-NLS-2$
	+ "-" + calendar.get(Calendar.SECOND); //$NON-NLS-1$
	}

	/**
	* Returns the time in the format: HHH:MM. If <code>includeSeconds</code> is true, the returned format is:
	* HHH:MM:SS.
	*
	* @since 3.5
	*/
	public static String getFormattedDurationShort(long duration, boolean includeSeconds) {
	if (duration <= 0) {
	return "00:00"; //$NON-NLS-1$
	}

	long totalSeconds = duration / 1000;
	long remainderSeconds = totalSeconds % 60;
	long totalMinutes = totalSeconds / 60;
	long remainderMinutes = totalMinutes % 60;
	long totalHours = totalMinutes / 60;

	StringBuffer sb = new StringBuffer(8);
	if (totalHours < 10) {
	sb.append("0"); //$NON-NLS-1$
	}
	sb.append(totalHours);
	sb.append(":"); //$NON-NLS-1$
	if (remainderMinutes < 10) {
	sb.append("0"); //$NON-NLS-1$
	}
	sb.append(remainderMinutes);
	if (includeSeconds) {
	sb.append(":"); //$NON-NLS-1$
	if (remainderSeconds < 10) {
	sb.append("0"); //$NON-NLS-1$
	}
	sb.append(remainderSeconds);
	}
	return sb.toString();
	}

	/** Returns the time in the format: HHH:MM */
	public static String getFormattedDurationShort(long duration) {
	return getFormattedDurationShort(duration, false);
	}

	/**
	* @deprecated The result of this method is not properly localized.
	*/
	@Deprecated
	public static String getFormattedDuration(long duration, boolean includeSeconds) {
	long seconds = duration / 1000;
	long minutes = 0;
	long hours = 0;
	// final long SECOND = 1000;
	final long MIN = 60;
	final long HOUR = MIN * 60;
	String formatted = ""; //$NON-NLS-1$

	String hour = ""; //$NON-NLS-1$
	String min = ""; //$NON-NLS-1$
	String sec = ""; //$NON-NLS-1$
	if (seconds >= HOUR) {
	hours = seconds / HOUR;
	if (hours == 1) {
	hour = hours + " hour "; //$NON-NLS-1$
	} else if (hours > 1) {
	hour = hours + " hours "; //$NON-NLS-1$
	}
	seconds -= hours * HOUR;

	minutes = seconds / MIN;
	if (minutes == 1) {
	min = minutes + " minute "; //$NON-NLS-1$
	} else if (minutes != 1) {
	min = minutes + " minutes "; //$NON-NLS-1$
	}
	seconds -= minutes * MIN;
	if (seconds == 1) {
	sec = seconds + " second"; //$NON-NLS-1$
	} else if (seconds > 1) {
	sec = seconds + " seconds"; //$NON-NLS-1$
	}
	formatted += hour + min;
	if (includeSeconds) {
	formatted += sec;
	}
	} else if (seconds >= MIN) {
	minutes = seconds / MIN;
	if (minutes == 1) {
	min = minutes + " minute "; //$NON-NLS-1$
	} else if (minutes != 1) {
	min = minutes + " minutes "; //$NON-NLS-1$
	}
	seconds -= minutes * MIN;
	if (seconds == 1) {
	sec = seconds + " second"; //$NON-NLS-1$
	} else if (seconds > 1) {
	sec = seconds + " seconds"; //$NON-NLS-1$
	}
	formatted += min;
	if (includeSeconds) {
	formatted += sec;
	}
	} else {
	if (seconds == 1) {
	sec = seconds + " second"; //$NON-NLS-1$
	} else if (seconds > 1) {
	sec = seconds + " seconds"; //$NON-NLS-1$
	}
	if (includeSeconds) {
	formatted += sec;
	}
	}
	return formatted;
	}

	private static long MILLIS_SECOND = 1000;

	private static long MILLIS_MINUTE = 60 * MILLIS_SECOND;

	private static long MILLIS_HOUR = 60 * MILLIS_MINUTE;

	private static long MILLIS_DAY = 24 * MILLIS_HOUR;

	private static long MILLIS_WEEK = 7 * MILLIS_DAY;

	private static long MILLIS_MONTH = 4 * MILLIS_WEEK;

	private enum Period {

	MONTH(MILLIS_MONTH, Messages.DateUtil_month_single, Messages.DateUtil_month_multi), //
	WEEK(MILLIS_WEEK, Messages.DateUtil_week, Messages.DateUtil_weeks), //
	DAY(MILLIS_DAY, Messages.DateUtil_day, Messages.DateUtil_days), //
	HOUR(MILLIS_HOUR, Messages.DateUtil_hour, Messages.DateUtil_hours), //
	MINUTE(MILLIS_MINUTE, Messages.DateUtil_minute, Messages.DateUtil_minutes), //
	SECOND(MILLIS_SECOND, Messages.DateUtil_second, Messages.DateUtil_seconds);

	private final long duration;

	private final String singularLabel;

	private final String pluralLabel;

	Period(long duration, String singularLabel, String pluralLabel) {
	this.duration = duration;
	this.singularLabel = singularLabel;
	this.pluralLabel = pluralLabel;
	}

	public String toString(long time) {
	long count = time / duration;
	if (count <= 1) {
	return NLS.bind(singularLabel, count);
	} else {
	return NLS.bind(pluralLabel, count);
	}
	}

	}

	private static class PeriodString {

	private final Period period;

	private final long duration;

	private PeriodString next;

	public PeriodString(Period period, long duration) {
	Assert.isNotNull(period);
	this.period = period;
	this.duration = duration;
	}

	public void append(PeriodString next) {
	this.next = next;
	}

	@Override
	public String toString() {
	return period.toString(duration) + ((next != null) ? " " + next.toString() : ""); //$NON-NLS-1$ //$NON-NLS-2$
	}

	}

	/**
	* @since 3.5
	*/
	public static String getRelative(long time) {
	long diff = System.currentTimeMillis() - time;
	String duration = getRelativeDuration(Math.abs(diff));
	if (duration.length() > 0) {
	if (diff > 0) {
	return NLS.bind(Messages.DateUtil_ago, duration);
	} else {
	return NLS.bind(Messages.DateUtil_in, duration);
	}
	}
	return ""; //$NON-NLS-1$
	}

	/**
	* @since 3.5
	*/
	public static String getRelativeDuration(long diff) {
	PeriodString string = null;
	for (Period period : Period.values()) {
	boolean wasSet = (string != null);
	if (diff >= period.duration) {
	if (string == null) {
	string = new PeriodString(period, diff);
	} else {
	string.append(new PeriodString(period, diff));
	// do not add more than two segments
	break;
	}
	diff -= (diff / period.duration) * period.duration;
	}
	// only return more than one segment if the second segment follows the first one directly
	if (wasSet) {
	break;
	}
	}
	return (string != null) ? string.toString() : ""; //$NON-NLS-1$
	}

	}