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//Copyright (c) 2006, Adobe Systems Incorporated
//All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. All advertising materials mentioning features or use of this software
// must display the following acknowledgement:
// This product includes software developed by the Adobe Systems Incorporated.
// 4. Neither the name of the Adobe Systems Incorporated nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY ADOBE SYSTEMS INCORPORATED ''AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL ADOBE SYSTEMS INCORPORATED BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// http://www.adobe.com/devnet/xmp/library/eula-xmp-library-java.html
package com.itextpdf.xmp.impl;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;
import com.itextpdf.xmp.XMPDateTime;
import com.itextpdf.xmp.XMPException;
/**
* The implementation of XMPDateTime. Internally a calendar is used
* plus an additional nano seconds field, because Calendar supports only milli
* seconds. The nanoSeconds convers only the resolution beyond a milli second.
*
* @since 16.02.2006
*/
public class XMPDateTimeImpl implements XMPDateTime
{
/** */
private int year = 0;
/** */
private int month = 0;
/** */
private int day = 0;
/** */
private int hour = 0;
/** */
private int minute = 0;
/** */
private int second = 0;
/** Use NO time zone as default */
private TimeZone timeZone = null;
/**
* The nano seconds take micro and nano seconds, while the milli seconds are in the calendar.
*/
private int nanoSeconds;
/** */
private boolean hasDate = false;
/** */
private boolean hasTime = false;
/** */
private boolean hasTimeZone = false;
/**
* Creates an XMPDateTime-instance with the current time in the default time
* zone.
*/
public XMPDateTimeImpl()
{
// EMPTY
}
/**
* Creates an XMPDateTime-instance from a calendar.
*
* @param calendar a Calendar
*/
public XMPDateTimeImpl(Calendar calendar)
{
// extract the date and timezone from the calendar provided
Date date = calendar.getTime();
TimeZone zone = calendar.getTimeZone();
// put that date into a calendar the pretty much represents ISO8601
// I use US because it is close to the "locale" for the ISO8601 spec
GregorianCalendar intCalendar =
(GregorianCalendar) Calendar.getInstance(Locale.US);
intCalendar.setGregorianChange(new Date(Long.MIN_VALUE));
intCalendar.setTimeZone(zone);
intCalendar.setTime(date);
this.year = intCalendar.get(Calendar.YEAR);
this.month = intCalendar.get(Calendar.MONTH) + 1; // cal is from 0..12
this.day = intCalendar.get(Calendar.DAY_OF_MONTH);
this.hour = intCalendar.get(Calendar.HOUR_OF_DAY);
this.minute = intCalendar.get(Calendar.MINUTE);
this.second = intCalendar.get(Calendar.SECOND);
this.nanoSeconds = intCalendar.get(Calendar.MILLISECOND) * 1000000;
this.timeZone = intCalendar.getTimeZone();
// object contains all date components
hasDate = hasTime = hasTimeZone = true;
}
/**
* Creates an XMPDateTime-instance from
* a Date and a TimeZone.
*
* @param date a date describing an absolute point in time
* @param timeZone a TimeZone how to interpret the date
*/
public XMPDateTimeImpl(Date date, TimeZone timeZone)
{
GregorianCalendar calendar = new GregorianCalendar(timeZone);
calendar.setTime(date);
this.year = calendar.get(Calendar.YEAR);
this.month = calendar.get(Calendar.MONTH) + 1; // cal is from 0..12
this.day = calendar.get(Calendar.DAY_OF_MONTH);
this.hour = calendar.get(Calendar.HOUR_OF_DAY);
this.minute = calendar.get(Calendar.MINUTE);
this.second = calendar.get(Calendar.SECOND);
this.nanoSeconds = calendar.get(Calendar.MILLISECOND) * 1000000;
this.timeZone = timeZone;
// object contains all date components
hasDate = hasTime = hasTimeZone = true;
}
/**
* Creates an XMPDateTime-instance from an ISO 8601 string.
*
* @param strValue an ISO 8601 string
* @throws XMPException If the string is a non-conform ISO 8601 string, an exception is thrown
*/
public XMPDateTimeImpl(String strValue) throws XMPException
{
ISO8601Converter.parse(strValue, this);
}
/**
* @see XMPDateTime#getYear()
*/
public int getYear()
{
return year;
}
/**
* @see XMPDateTime#setYear(int)
*/
public void setYear(int year)
{
this.year = Math.min(Math.abs(year), 9999);
this.hasDate = true;
}
/**
* @see XMPDateTime#getMonth()
*/
public int getMonth()
{
return month;
}
/**
* @see XMPDateTime#setMonth(int)
*/
public void setMonth(int month)
{
if (month < 1)
{
this.month = 1;
}
else if (month > 12)
{
this.month = 12;
}
else
{
this.month = month;
}
this.hasDate = true;
}
/**
* @see XMPDateTime#getDay()
*/
public int getDay()
{
return day;
}
/**
* @see XMPDateTime#setDay(int)
*/
public void setDay(int day)
{
if (day < 1)
{
this.day = 1;
}
else if (day > 31)
{
this.day = 31;
}
else
{
this.day = day;
}
this.hasDate = true;
}
/**
* @see XMPDateTime#getHour()
*/
public int getHour()
{
return hour;
}
/**
* @see XMPDateTime#setHour(int)
*/
public void setHour(int hour)
{
this.hour = Math.min(Math.abs(hour), 23);
this.hasTime = true;
}
/**
* @see XMPDateTime#getMinute()
*/
public int getMinute()
{
return minute;
}
/**
* @see XMPDateTime#setMinute(int)
*/
public void setMinute(int minute)
{
this.minute = Math.min(Math.abs(minute), 59);
this.hasTime = true;
}
/**
* @see XMPDateTime#getSecond()
*/
public int getSecond()
{
return second;
}
/**
* @see XMPDateTime#setSecond(int)
*/
public void setSecond(int second)
{
this.second = Math.min(Math.abs(second), 59);
this.hasTime = true;
}
/**
* @see XMPDateTime#getNanoSecond()
*/
public int getNanoSecond()
{
return nanoSeconds;
}
/**
* @see XMPDateTime#setNanoSecond(int)
*/
public void setNanoSecond(int nanoSecond)
{
this.nanoSeconds = nanoSecond;
this.hasTime = true;
}
/**
* @see Comparable#compareTo(Object)
*/
public int compareTo(Object dt)
{
long d = getCalendar().getTimeInMillis()
- ((XMPDateTime) dt).getCalendar().getTimeInMillis();
if (d != 0)
{
return (int) Math.signum(d);
}
else
{
// if millis are equal, compare nanoseconds
d = nanoSeconds - ((XMPDateTime) dt).getNanoSecond();
return (int) Math.signum(d);
}
}
/**
* @see XMPDateTime#getTimeZone()
*/
public TimeZone getTimeZone()
{
return timeZone;
}
/**
* @see XMPDateTime#setTimeZone(TimeZone)
*/
public void setTimeZone(TimeZone timeZone)
{
this.timeZone = timeZone;
this.hasTime = true;
this.hasTimeZone = true;
}
/**
* @see XMPDateTime#hasDate()
*/
public boolean hasDate()
{
return this.hasDate;
}
/**
* @see XMPDateTime#hasTime()
*/
public boolean hasTime()
{
return this.hasTime;
}
/**
* @see XMPDateTime#hasTimeZone()
*/
public boolean hasTimeZone()
{
return this.hasTimeZone;
}
/**
* @see XMPDateTime#getCalendar()
*/
public Calendar getCalendar()
{
GregorianCalendar calendar = (GregorianCalendar) Calendar.getInstance(Locale.US);
calendar.setGregorianChange(new Date(Long.MIN_VALUE));
if (hasTimeZone)
{
calendar.setTimeZone(timeZone);
}
calendar.set(Calendar.YEAR, year);
calendar.set(Calendar.MONTH, month - 1);
calendar.set(Calendar.DAY_OF_MONTH, day);
calendar.set(Calendar.HOUR_OF_DAY, hour);
calendar.set(Calendar.MINUTE, minute);
calendar.set(Calendar.SECOND, second);
calendar.set(Calendar.MILLISECOND, nanoSeconds / 1000000);
return calendar;
}
/**
* @see XMPDateTime#getISO8601String()
*/
public String getISO8601String()
{
return ISO8601Converter.render(this);
}
/**
* @return Returns the ISO string representation.
*/
public String toString()
{
return getISO8601String();
}
}
