org.tigris.subversion.javahl.LogDate Maven / Gradle / Ivy
/**
* @copyright
* ====================================================================
* Copyright (c) 2008 CollabNet. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://subversion.tigris.org/license-1.html.
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
*
* This software consists of voluntary contributions made by many
* individuals. For exact contribution history, see the revision
* history and logs, available at http://subversion.tigris.org/.
* ====================================================================
* @endcopyright
*/
package org.tigris.subversion.javahl;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
/**
* Holds date for a log message. This class maintains
* the time to the microsecond and is not lossy.
*
* @since 1.5
*/
public class LogDate implements java.io.Serializable
{
private static final long serialVersionUID = 1L;
private static final DateFormat formatter = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS z");
private static final TimeZone UTC = TimeZone.getTimeZone("UTC");
private final long timeMicros;
private final String cachedString;
private final Calendar cachedDate;
public LogDate(String datestr) throws ParseException
{
if (datestr == null || datestr.length() != 27 || datestr.charAt(26) != 'Z')
{
throw new ParseException("String is not a valid Subversion date", 0);
}
Date date = formatter.parse(datestr.substring(0, 23) + " UTC");
this.cachedString = datestr;
cachedDate = Calendar.getInstance(UTC);
cachedDate.setTime(date);
timeMicros = cachedDate.getTimeInMillis() * 1000
+ Integer.parseInt(datestr.substring(23, 26));
}
/**
* Returns the time of the commit in microseconds
* @return the time of the commit measured in the number of
* microseconds since 00:00:00 January 1, 1970 UTC
*/
public long getTimeMicros()
{
return timeMicros;
}
/**
* Returns the time of the commit in milliseconds
* @return the time of the commit measured in the number of
* milliseconds since 00:00:00 January 1, 1970 UTC
*/
public long getTimeMillis()
{
return cachedDate.getTimeInMillis();
}
/**
* Returns the time of the commit as Calendar
* @return the time of the commit as java.util.Calendar
*/
public Calendar getCalender()
{
return cachedDate;
}
/**
* Returns the date of the commit
* @return the time of the commit as java.util.Date
*/
public Date getDate()
{
return cachedDate.getTime();
}
public String toString()
{
return cachedString;
}
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + (int) (timeMicros ^ (timeMicros >>> 32));
return result;
}
public boolean equals(Object obj)
{
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final LogDate other = (LogDate) obj;
if (timeMicros != other.getTimeMicros())
return false;
return true;
}
}