litesoft
@ 851
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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.core.simpletypes.temporal; import java.util.*; import org.litesoft.core.*; import org.litesoft.core.simpletypes.temporal.nonpublic.*; import org.litesoft.core.typeutils.*; import org.litesoft.core.typeutils.gregorian.*; /** * A Simple date that acts as a proxy for a java.util.Date (burying the deprecated method use) providing * varying levels of resolution based on the Format String (which supports formatting similar to SimpledateFormat). * <p/> * <pre> * y Year - YY (1996 becomes 96), * otherwise it is the complete Year, eg: 1996, 2001, 10050. * M Month - M generates no leading 0 months as numbers, * MM produces 2 digit month numbers, * MMM produces 3 letter month abbreviated form, * MMMM (4 or more) produces the full form. * d Day - d generates no leading 0 day of month as numbers, * dd produces 2 digit day of month numbers. * </pre> */ public final class SimpleDate extends CalendarSupport<SimpleDate> implements YearMonthDayAccessor, TemporalSimpleType, CalendarConstants, SQLdateable { private static final long serialVersionUID = 2L; private final DateFormat mFormat; private final int mYear, mMonth, mDay; @SuppressWarnings({"deprecation", "UnusedDeclaration"}) @Deprecated /** for Serialization */ protected SimpleDate() { this( 0, 0, 0, null ); } public static SimpleDate today() { return new SimpleDate( new Date() ); } private SimpleDate( int pYear, int pMonth, int pDay, DateFormat pFormat ) { mFormat = pFormat; mYear = pYear; mMonth = pMonth; mDay = pDay; } private SimpleDate( YearMonthDayAccessor pDate, DateFormat pFormat ) throws IllegalArgumentException { mFormat = pFormat; mYear = pDate.getYear(); mMonth = isValidToMonth() ? mFormat.monthProvided( mYear, pDate.getMonth() ) : 0; mDay = isValidToDay() ? mFormat.dayProvided( mYear, mMonth, pDate.getDay() ) : 0; } public SimpleDate( DateFormat pFormat, int pYear ) throws IllegalArgumentException { this( pYear, 0, 0, YearFormatAccessor.deNull( pFormat ) ); mFormat.noMonthProvided(); } public SimpleDate( int pYear ) throws IllegalArgumentException { this( null, pYear ); } public SimpleDate( DateFormat pFormat, int pYear, int pMonth ) throws IllegalArgumentException { this( pYear, pMonth, 0, YearMonthFormatAccessor.deNull( pFormat ) ); mFormat.monthProvided( pYear, pMonth ); mFormat.noDayProvided(); } public SimpleDate( int pYear, int pMonth ) throws IllegalArgumentException { this( null, pYear, pMonth ); } public SimpleDate( DateFormat pFormat, int pYear, int pMonth, int pDay ) throws IllegalArgumentException { this( pYear, pMonth, pDay, YearMonthDayFormatAccessor.deNull( pFormat ) ); mFormat.dayProvided( pYear, pMonth, pDay ); } public SimpleDate( int pYear, int pMonth, int pDay ) throws IllegalArgumentException { this( null, pYear, pMonth, pDay ); } public SimpleDate( DateFormat pFormat, UtilDateAdaptor pDate ) throws IllegalArgumentException { this( pDate, YearMonthDayFormatAccessor.deNull( pFormat ) ); } public SimpleDate( UtilDateAdaptor pDate ) throws IllegalArgumentException { this( null, pDate ); } public SimpleDate( DateFormat pFormat, Date pDate ) throws IllegalArgumentException { this( pFormat, new UtilDateAdaptor( pDate ) ); } public SimpleDate( Date pDate ) throws IllegalArgumentException { this( null, pDate ); } /** * Return a SimpleDate (based on this) with the updated format (Resolution reduction supported) * * @param pFormat !null * * @throws IllegalArgumentException if <code>pFormat</code> is null, or the Resolution is attempting to be increased */ public SimpleDate changeFormat( DateFormat pFormat ) throws IllegalArgumentException { Objects.assertNotNull( "DateFormat", pFormat ); if ( mFormat.equals( pFormat ) ) { return this; } if ( mFormat.getDateRes().getIndex() < pFormat.getDateRes().getIndex() ) { throw new IllegalArgumentException( "May not add Resolution" ); } return new SimpleDate( pFormat, toUtilDateAdaptor() ); } /** * Return a SimpleDate with the day set to the 1st day of the current month, this will always set the 'Day' field to 1. * * @throws IllegalArgumentException if the Resolution does not extend to Day. */ public SimpleDate forceFirstOfMonth() throws IllegalArgumentException { return minusDays( mDay - 1 ); } /** * Return a SimpleDate with the day set to the last day of the current month (either 28, 29, 30, or 31). * * @throws IllegalArgumentException if the Resolution does not extend to Day. */ public SimpleDate forceEndOfMonth() throws IllegalArgumentException { return addDays( Month.daysIn( getYear(), getMonth() ) - mDay ); } /** * Return a SimpleDate who's <code>getWeekDay()</code> will be <code>pWeekday</code>, where the resulting date will <b>NOT</b> be in the Future relative to * <code>this</code>. * * @param pWeekDay !null */ public SimpleDate notFuture( WeekDay pWeekDay ) { return minusDays( getWeekDay().deltaTillBackward( pWeekDay ) ); } /** * Return a SimpleDate with the Year set to the parameter, this is accomplished by utilizing addYears or minusYears as is appropriate (with their day * adjusting logic). */ public SimpleDate year( int pYear ) { return (mYear == pYear) ? this : (pYear > mYear) ? addYears( pYear - mYear ) : minusYears( mYear - pYear ); } /** * if after add pYears if was LeapDay and can not be LeapDay will be 1Mar. */ public SimpleDate addYears( int pYears ) { return LLsetYear( mYear + pYears, true ); } /** * if after minus pYears if was LeapDay and can not be LeapDay will be 28Feb. */ public SimpleDate minusYears( int pYears ) { return LLsetYear( mYear - pYears, false ); } /** * Return a SimpleDate with the Month set to the parameter, this is accomplished by utilizing addMonths or minusMonths as is appropriate (with their day * adjusting logic). * * @throws IllegalArgumentException if month is not between 1 & 12 inclusive, OR if the Resolution does not extend to Month. */ public SimpleDate month( int pMonth ) throws IllegalArgumentException { LLcheckMonth( mYear, pMonth ); return (mMonth == pMonth) ? this : (pMonth > mMonth) ? addMonths( pMonth - mMonth ) : minusMonths( mMonth - pMonth ); } /** * if after add pMonth there are insufficent days in the new month, the date will be set to the 1st of the next month. * * @throws IllegalArgumentException if the Resolution does not extend to Month. */ public SimpleDate addMonths( int pMonths ) throws IllegalArgumentException { return LLsetMonth( mMonth + pMonths, true ); } /** * if after minus pMonth there are insufficent days in the new month, the date will be set to the last day of the target month * * @throws IllegalArgumentException if the Resolution does not extend to Month. */ public SimpleDate minusMonths( int pMonths ) throws IllegalArgumentException { return LLsetMonth( mMonth - pMonths, false ); } /** * Return a SimpleDate with the 'Day' field set to the parameter. * * @param pDay Must be between 1 and the max days in the <code>this</code>'s month * * @throws IllegalArgumentException if the <code>pDay</code> is invalid, OR the Resolution does not extend to Day. */ public SimpleDate day( int pDay ) throws IllegalArgumentException { mFormat.validateDayAdjustable(); LLcheckDay( mYear, mMonth, pDay ); return new SimpleDate( mYear, mMonth, pDay, mFormat ); } /** * Return a SimpleDate adjusted forward by the <code>pDays</code> indicated. * * @throws IllegalArgumentException if the Resolution does not extend to Day. */ public SimpleDate addDays( int pDays ) throws IllegalArgumentException { return LLsetDay( mDay + pDays ); } /** * Return a SimpleDate adjusted backward by the <code>pDays</code> indicated. * * @throws IllegalArgumentException if the Resolution does not extend to Day. */ public SimpleDate minusDays( int pDays ) throws IllegalArgumentException { return LLsetDay( mDay - pDays ); } public boolean isValidToMonth() { return mFormat.getDateRes().isValidToMonth(); } public boolean isValidToDay() { return mFormat.getDateRes().isValidToDay(); } @Override public int getYear() { return mYear; } /** * @return 0 if not ValidToMonth, otherwise 1-12 */ @Override public int getMonth() { return mMonth; } /** * @return 0 if not ValidToDay, otherwise 1-31 */ @Override public int getDay() { return mDay; } public WeekDay getWeekDay() { mFormat.validateValidToDay( "getWeekDay" ); return WeekDay.valueOf( UtilDateAdaptor.dayOfWeek( toUtilDateAdaptor().getWallDate() ) ); } /** * Number of days from this to pThem (could be negative). * * @param pThem !null * * @throws IllegalArgumentException if pThem is null or the resolution of either this' or pThem is not to the Day */ public int daysTill( SimpleDate pThem ) throws IllegalArgumentException { validateValidToDay( "daysTill", pThem ); int zThisMinusThem = compareTo( pThem ); if ( zThisMinusThem == 0 ) { return 0; } if ( zThisMinusThem > 0 ) { return -new DaysDiff( pThem ).till( this ); } return new DaysDiff( this ).till( pThem ); } /** * True if this is 'before' pThem. * <p/> * Note: Uses the lesser resolution of pThem or this. * * @param pThem !null * * @throws IllegalArgumentException if pThem is null */ public boolean before( SimpleDate pThem ) throws IllegalArgumentException { return LLbeforeOrAfter( pThem, "before", -1 ); } /** * True if this is 'after' pThem. * <p/> * Note: Uses the lesser resolution of pThem or this. * * @param pThem !null * * @throws IllegalArgumentException if pThem is null */ public boolean after( SimpleDate pThem ) throws IllegalArgumentException { return LLbeforeOrAfter( pThem, "after", 1 ); } /** * Number of days from this to pThem (could be negative). * <p/> * Note: Treats pThem as if its resolution is to the Day. * * @param pThem !null * * @throws IllegalArgumentException if pThem is null or this' resolution is not to the Day */ public int daysTill( Date pThem ) throws IllegalArgumentException { undefinedResultIfNull( "daysTill", pThem ); return daysTill( new SimpleDate( mFormat, pThem ) ); } /** * True if this is 'after' pThem. * <p/> * Note: Treats pThem as if its resolution is the same as this' resolution. * * @param pThem !null * * @throws IllegalArgumentException if pThem is null */ public boolean after( Date pThem ) throws IllegalArgumentException { undefinedResultIfNull( "after", pThem ); return after( new SimpleDate( mFormat, pThem ) ); } /** * True if this is 'before' pThem. * <p/> * Note: Treats pThem as if its resolution is the same as this' resolution. * * @param pThem !null * * @throws IllegalArgumentException if pThem is null */ public boolean before( Date pThem ) throws IllegalArgumentException { undefinedResultIfNull( "before", pThem ); return before( new SimpleDate( mFormat, pThem ) ); } @Override public boolean equals( Object o ) { return (this == o) || // ((o instanceof SimpleDate) && equals( (SimpleDate) o )) || ((o instanceof Date) && equals( (Date) o )); } public boolean equals( Date pDate ) { return (pDate != null) && equals( new SimpleDate( mFormat, pDate ) ); } public boolean equals( SimpleDate them ) { return (this == them) || // ((them != null) // && equal( this.mYear, them.mYear ) // && equal( this.mMonth, them.mMonth ) // && equal( this.mDay, them.mDay ) // ); } @Override public int hashCode() { return hashCodeEm( calcHashCode( mYear ), // calcHashCode( mMonth ), // calcHashCode( mDay ) ); } @Override public int compareTo( SimpleDate them ) { return compareEm( compare( this.mYear, them.mYear ), // compare( this.mMonth, them.mMonth ), // compare( this.mDay, them.mDay ) ); } public UtilDateAdaptor toUtilDateAdaptor() { if ( isValidToDay() ) { return new UtilDateAdaptor( mYear, mMonth, mDay ); } if ( isValidToMonth() ) { return new UtilDateAdaptor( mYear, mMonth, 1 ); } return new UtilDateAdaptor( mYear, 1, 1 ); } public Date toUtilDate() { return toUtilDateAdaptor().getWallDate(); } @Override public String toString() { return mFormat.format( this ); } public static String toString( SimpleDate pDate ) { return (pDate != null) ? pDate.toString() : null; } public String toYMD() { StringBuilder sb = new StringBuilder(); sb.append( getYear() ); if ( isValidToMonth() ) { sb.append( '/' ); MM_Chunk.appendTo( sb, this ); if ( isValidToDay() ) { sb.append( '/' ); dd_Chunk.appendTo( sb, this ); } } return sb.toString(); } public static String toYMD( SimpleDate pFromYMD ) { return (pFromYMD != null) ? pFromYMD.toYMD() : null; } public static SimpleDate fromYMD( DateFormat pFormat, String pToYMD ) throws IllegalArgumentException { if ( pToYMD == null ) { return null; } String[] parts = SimpleParser.parse( pToYMD, "//", 1 ); switch ( parts.length ) { case 1: return new SimpleDate( pFormat, // parseInt( parts[0], "Year", pToYMD ) ); case 2: return new SimpleDate( pFormat, // parseInt( parts[0], "Year", pToYMD ), // parseInt( parts[1], "Month", pToYMD ) ); case 3: return new SimpleDate( pFormat, // parseInt( parts[0], "Year", pToYMD ), // parseInt( parts[1], "Month", pToYMD ), // parseInt( parts[2], "Day", pToYMD ) ); default: throw new IllegalStateException( "parts.length = " + parts.length ); } } @Override public java.sql.Date toSQLvalue() { return new java.sql.Date( toUtilDate().getTime() ); } // vvvvvvvvvvvvvvvvvv Support methods vvvvvvvvvvvvvvvvv private void validateValidToDay( String pWhat, SimpleDate pThem ) throws IllegalArgumentException { mFormat.validateValidToDay( pWhat ); undefinedResultIfNull( pWhat, pThem ); if ( !pThem.isValidToDay() ) { throw new IllegalArgumentException( "Parameter to " + pWhat + " does NOT have Day resolution" ); } } private SimpleDate LLsetYear( int pNewYear, boolean pAdjustForward ) { return (mYear == pNewYear) ? this : new Mutable( this ).setYear( pNewYear, pAdjustForward ).toSimpleDate(); } private SimpleDate LLsetMonth( int pNewMonth, boolean pAdjustForward ) throws IllegalArgumentException { mFormat.validateMonthAdjustable(); return (mMonth == pNewMonth) ? this : new Mutable( this ).setMonth( pNewMonth, pAdjustForward ).toSimpleDate(); } private SimpleDate LLsetDay( int pDay ) throws IllegalArgumentException { mFormat.validateDayAdjustable(); return (mDay == pDay) ? this : new Mutable( this ).setDay( pDay ).toSimpleDate(); } private boolean LLbeforeOrAfter( SimpleDate pThem, String pWhat, int pCompareRetValue ) throws IllegalArgumentException { undefinedResultIfNull( pWhat, pThem ); if ( (this.mYear == pThem.mYear) && this.isValidToMonth() && pThem.isValidToMonth() ) { if ( (this.mMonth == pThem.mMonth) && this.isValidToDay() && pThem.isValidToDay() ) { return pCompareRetValue == compare( this.mDay, pThem.mDay ); } return pCompareRetValue == compare( this.mMonth, pThem.mMonth ); } return pCompareRetValue == compare( this.mYear, pThem.mYear ); } private static class DaysDiff { private int mYear, mMonth, mDay, mDiff = 0; public DaysDiff( YearMonthDayAccessor pYMDaccessor ) { mYear = pYMDaccessor.getYear(); mMonth = pYMDaccessor.getMonth(); mDay = pYMDaccessor.getDay(); } public int till( YearMonthDayAccessor pThem ) // !null and is in our future { if ( mYear != pThem.getYear() ) { // advance to 1st of the year do { advanceTo1stOfNextMonth(); } while ( mMonth != 1 ); for (; mYear < pThem.getYear(); mYear++ ) { mDiff += Year.isLeap( mYear ) ? 366 : 365; } } while ( mMonth < pThem.getMonth() ) { advanceTo1stOfNextMonth(); } return mDiff + (pThem.getDay() - mDay); } private void advanceTo1stOfNextMonth() { int zDaysInMonth = Month.daysIn( mYear, mMonth ); mDiff += zDaysInMonth - (mDay - 1); mDay = 1; if ( ++mMonth > 12 ) { mMonth = 1; mYear++; } } } private static class Mutable implements YearMonthDayAccessor { private DateFormat mDateFormat; private int mYear, mMonth, mDay; private Mutable( DateFormat pDateFormat, int pYear, int pMonth, int pDay ) { mDateFormat = pDateFormat; mYear = pYear; mMonth = pMonth; mDay = pDay; normalizeMonthOfYear(); normalizeDayOfMonth(); } private Mutable( SimpleDate pDate ) { this( pDate.mFormat, pDate.getYear(), pDate.getMonth(), pDate.getDay() ); } @Override public int getYear() { return mYear; } public Mutable setYear( int pYear ) { return setYear( pYear, (pYear > mYear) ); } public Mutable setYear( int pYear, boolean pAdjustForward ) { mYear = pYear; return adjustDayOfMonthForMonthOrYearChange( pAdjustForward ); } @Override public int getMonth() { return mMonth; } public Mutable setMonth( int pMonth ) { return setMonth( pMonth, (pMonth > mMonth) ); } public Mutable setMonth( int pMonth, boolean pAdjustForward ) { mMonth = pMonth; return adjustDayOfMonthForMonthOrYearChange( pAdjustForward ); } @Override public int getDay() { return mDay; } public Mutable setDay( int pDay ) { mDay = pDay; return normalizeDayOfMonth(); } private Mutable normalizeMonthOfYear() { while ( mMonth > 12 ) { mYear++; mMonth -= 12; } while ( mMonth < 1 ) { mYear--; mMonth += 12; } return this; } private Mutable normalizeDayOfMonth() { while ( mDay < 1 ) { if ( --mMonth < 1 ) { mMonth = 12; mYear--; } mDay += Month.daysIn( mYear, mMonth ); } while ( 28 < mDay ) { int zDaysInMonth = Month.daysIn( mYear, mMonth ); if ( mDay <= zDaysInMonth ) { break; } mDay -= zDaysInMonth; if ( 12 < ++mMonth ) { mMonth = 1; mYear++; } } return this; } private Mutable adjustDayOfMonthForMonthOrYearChange( boolean pAdjustForward ) { normalizeMonthOfYear(); if ( mDateFormat.getDateRes().isValidToDay() ) // if Not, then any year works with any month { int maxDaysInMonth = Month.daysIn( mYear, mMonth ); if ( maxDaysInMonth < mDay ) { mDay = maxDaysInMonth; if ( pAdjustForward ) { return addDays( 1 ); } } } return this; } public Mutable addDays( int pDays ) { mDay += pDays; for ( int maxDaysInMonth; (maxDaysInMonth = Month.daysIn( mYear, mMonth )) < mDay; ) { mDay -= maxDaysInMonth; if ( ++mMonth > 12 ) { mMonth = 1; mYear++; } } return this; } public Mutable minusDays( int pDays ) { mDay -= pDays; while ( mDay < 1 ) { if ( --mMonth < 1 ) { mMonth = 12; mYear--; } mDay += Month.daysIn( mYear, mMonth ); } return this; } public SimpleDate toSimpleDate() { return new SimpleDate( this, mDateFormat ); } } } |
Commits for litesoft/trunk/Java/core/Anywhere/src/org/litesoft/core/simpletypes/temporal/SimpleDate.java
Revision | Author | Commited | Message |
---|---|---|---|
851 Diff | GeorgeS | Mon 08 Oct, 2012 00:05:32 +0000 | Breaking the code as Temporal changes are implemented... |
850 Diff | GeorgeS | Tue 11 Sep, 2012 17:23:33 +0000 | |
849 Diff | GeorgeS | Tue 11 Sep, 2012 17:11:59 +0000 | Clean up serialization |
847 Diff | GeorgeS | Fri 07 Sep, 2012 15:53:36 +0000 | |
66 Diff | GeorgeS | Tue 12 Oct, 2010 16:44:38 +0000 | Isolation and creation of LiteSoft’s WhereClause code into a JAR |
50 Diff | GeorgeS | Tue 13 Apr, 2010 11:51:38 +0000 | |
49 Diff | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |
2 | GeorgeS | Sun 07 Feb, 2010 12:50:58 +0000 |