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//start of MsdosDate.java
//TEXT_STYLE:CODE=Shift_JIS(Japanese):RET_CODE=CRLF
/**
* MsdosDate.java
*
* Copyright (C) 2001-2002 Michel Ishizuka All rights reserved.
*
* ȉ̏ɓӂȂ\[XƃoCi`̍ĔzzƎgp
* ύX̗Lɂ炸B
*
* PD\[XR[h̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐ێȂĂ͂ȂȂB
*
* QDoCi`̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐gp ̑̔zz
* ܂ގɋLqȂȂȂB
*
* ̃\tgEFA͐Β˔ڂɂĖۏŒA̖
* IBłƂۏAilLƂۏɂƂǂ܂炸A
* Ȃ閾IшÎIȕۏȂB
* Β˔ڂ ̃\tgEFA̎gpɂ钼ړIAԐړIA
* IAȁAT^IȁA邢͕KRIȑQ(gpɂf[^
* AƖ̒f〈܂Ăv̈⎸Ai
* T[rX̓l邪AĂꂾɌ肳Ȃ
* Q)ɑāAȂ鎖Ԃ̌ƂȂƂĂA_̐
* C△ߎӔC܂ ȂӔC낤ƂAƂꂪs
* ŝׂ߂łƂĂA܂͂̂悤ȑQ̉\
* ĂƂĂ̐ӔCȂ̂ƂB
*/
package jp.gr.java_conf.dangan.util;
//import classes and interfaces
import java.util.Date;
import java.lang.Cloneable;
//import exceptions
import java.lang.IllegalArgumentException;
/**
* MS-DOS`̎ԏDate̔hNXB<br>
* f[^ 4bytelłAMS-DOS Intel x86nCPU
* 삵Ƃ LittleEndianŊi[B<br>
* tH[}bg͈ȉ̂ƂB<br>
* <pre>
* +---------------+---------------++---------------+---------------+
* | t-byte | t-byte || -byte | -byte |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |7|6|5|4|3|2|1|0|7|6|5|4|3|2|1|0||7|6|5|4|3|2|1|0|7|6|5|4|3|2|1|0|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | N-7bit |-4bit| -5bit ||-5bit| -6bit | b-5bit |
* +-------------+-------+---------++---------+-----------+---------+
* </pre>
* EN 1980`2107N 0`127 ŕ\BWindows̃VXeAPI
* ꕔ 2099N܂łT|[gȂƂB<br>
* E 1`12 1`12ŕ\B0`11łȂƂɒӁB<br>
* E 1`31 1`31ŕ\B0`30łȂƂɒӁB<br>
* EԂ 0`23 0`23ŕ\B<br>
* E 0`59 0`59ŕ\B<br>
* Eb 0`58b 0`29ŕ\Bb̏̓rbgȂ
* ŏPʂ 1błȂ 2błB<br>
*
* <pre>
* -- revision history --
* $Log: MsdosDate.java,v $
* Revision 1.1 2002/12/05 00:00:00 dangan
* [maintenance]
* javadoc Rg̃Xy~XCB
* \[X
*
* Revision 1.0 2002/07/24 00:00:00 dangan
* add to version control
* [bug fix]
* setTime() ftiměExł2bȏ̐xŋL^ĂB
* [maintenance]
* ^u̔p~
* CZX̏C
*
* </pre>
*
* @author $Author: dangan $
* @version $Revision: 1.1 $
*/
public class MsdosDate extends Date
implements Cloneable {
//------------------------------------------------------------------
// constructor
//------------------------------------------------------------------
// public MsdosDate( Date date )
// public MsdosDate( int time )
//------------------------------------------------------------------
/**
* date Ŏ鎞Ԃ\ MsdosDate \zB <br>
* MS-DOS `̎ԏŕ\Ȃׂx̏
* AŏԒPʂ java.util.Date 1~błȂ
* MS-DOS `̎ԏ ̍ŏPʂł 2bƂȂB
*
* @param date V\z MsdosDate ̊ɂȂ鎞ԏ
* DateIuWFNg
*
* @exception IllegalArgumentException
* date MS-DOSԌ`ňȂ͈͂̎Ԃ
* Ăꍇ
*/
public MsdosDate( Date date ){
super( ( date.getTime() / 2000L ) * 2000L );
this.checkRange();
}
/**
* MS-DOS `̎ԏ V MsdosDate \z
* B
*
* @param time MS-DOS `̎ԏ
*/
public MsdosDate( int time ){
super( (new java.util.GregorianCalendar(
((time >> 25 ) & 0x7F ) + 80 + 1900,
((time >> 21 ) & 0x0F ) - 1,
( time >> 16 ) & 0x1F,
( time >> 11 ) & 0x1F,
( time >> 5 ) & 0x3F,
( time << 1 ) & 0x3F )).getTime().getTime() ); //deprecated
this.checkRange();
}
//------------------------------------------------------------------
// method of java.lang.Cloneable
//------------------------------------------------------------------
// public Object clone()
//------------------------------------------------------------------
/**
* ̃IuWFNg̃Rs[ԂB
*
* @return MsdosDateIuWFNg̕
*/
public Object clone(){
return new MsdosDate( this );
}
//------------------------------------------------------------------
// method of java.util.Date
//------------------------------------------------------------------
// access method
//------------------------------------------------------------------
// set method with range check
//------------------------------------------------------------------
// public void setYear( int year )
// public void setTime( long time )
//------------------------------------------------------------------
/**
* MsdosDate ̎N year Ŏw肳ꂽl1900𑫂
* ̂ɐݒ肷B<br>
* ̃\bh͔͈̓`FbNŝ߂ɑ݂B<br>
*
* @deprecated
* @param year 1900𑫂ƂŐ\悤 N̒l
*
* @exception IllegalArgumentException
* year MS-DOSԌ`ňȂ͈͂̎Ԃ
* Ăꍇ
*/
public void setYear( int year ){
if( year < 80 || 207 < year ){
throw new IllegalArgumentException( "out of MS-DOS time format range." );
}else{
super.setYear( year ); //deprecated
}
}
/**
* MsdosDate ̎Ԃ 1970N11 00:00:00 GMT
* time ~bo߂ɐݒ肷B<br>
* MS-DOS `̎ԏŕ\Ȃׂx̏
* AŏԒPʂ java.util.Date 1~błȂ
* MS-DOS `̎ԏ ̍ŏPʂł 2bƂȂB
*
* @param time 1970N11 00:00:00GMT ̌o߃~b
*
* @exception IllegalArgumentException
* time MS-DOSԌ`ňȂ͈͂̎Ԃ
* Ăꍇ
*/
public void setTime( long time ){
int year = /*( new Date( time ) ).getYear()*/ 0;
java.util.GregorianCalendar c = new java.util.GregorianCalendar();
c.setTime(new Date(time));
year = c.get(java.util.Calendar.YEAR) - 1900;
if( year < 80 || 207 < year ){
throw new IllegalArgumentException( "out of MS-DOS time format range." );
}else{
super.setTime( ( time / 2000L ) * 2000L );
}
}
//------------------------------------------------------------------
// original method
//------------------------------------------------------------------
// access method of MS-DOS time format
//------------------------------------------------------------------
// public void setMsdosTime( int time )
// public int getMsdosTime()
//------------------------------------------------------------------
/**
* MsdosDate MS-DOS Ԍ`̎ԏݒ肷B
*
* @param time MS-DOS Ԍ`̎ԏ
*/
public void setMsdosTime( int time ){
Date date = new java.util.GregorianCalendar( ( ( time >> 25 ) & 0x7F ) + 80 + 1900,
( ( time >> 21 ) & 0x0F ) - 1,
( time >> 16 ) & 0x1F,
( time >> 11 ) & 0x1F,
( time >> 5 ) & 0x3F,
( time << 1 ) & 0x3F ).getTime(); //deprecated
this.setTime( date.getTime() );
}
/**
* MsdosDateԏ MS-DOS Ԍ`œB
*
* @return MS-DOSԌ`̒l
*/
public int getMsdosTime(){
java.util.GregorianCalendar c = new java.util.GregorianCalendar();
c.setTime(this);
return ( ( c.get(java.util.Calendar.YEAR)-1900 - 80 ) << 25 ) //deprecated
| ( ( c.get(java.util.Calendar.MONTH) + 1 ) << 21 ) //deprecated
| ( c.get(java.util.Calendar.DAY_OF_MONTH) << 16 ) //deprecated
| ( c.get(java.util.Calendar.HOUR_OF_DAY) << 11 ) //deprecated
| ( c.get(java.util.Calendar.MINUTE) << 5 ) //deprecated
| ( c.get(java.util.Calendar.SECOND) >> 1 ); //deprecated
}
//------------------------------------------------------------------
// local method
//------------------------------------------------------------------
// private void checkRange()
//------------------------------------------------------------------
/**
* MsdosDate MS-DOSԌ`ŕ\鎞Ԃ͈͓̔
* 邩肷B
*
* @exception IllegalArgumentException
* MsdosDate MS-DOSԌ`ňȂ
* ͈͂̎ԂĂꍇ
*/
private void checkRange(){
int year = /*this.getYear()*/ 0;
java.util.GregorianCalendar c = new java.util.GregorianCalendar();
c.setTime(this);
year = c.get(java.util.Calendar.YEAR) - 1900;
if( year < 80 || 207 < year )
throw new IllegalArgumentException( "out of MS-DOS time format range." );
}
}
//end of MsdosDate.java
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