litesoft
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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.core.simpletypes.temporal.nonpublic; import java.util.*; import org.litesoft.core.simpletypes.temporal.*; import org.litesoft.core.typeutils.*; import org.litesoft.core.typeutils.gregorian.*; public class TemporalParser implements TemporalParsingSupport { public static TemporalParser YMD = new TemporalParser( "yMd" ); private String mFieldOrder = null; public TemporalParser( String pFieldOrder ) { mFieldOrder = pFieldOrder; } public SimpleDate parseDate( String pDateFormat, String pText, UtilDateAdaptor pInadequatePartsSource ) { String zWhat = "Date"; List<PartCollector> zParts = LLparseToParts( pText, true ); LLpadPartsForDate( zParts, pInadequatePartsSource ); AbstractRealPC[] realPCs = LLinitialPartsValidate( pText, zParts, zWhat, 3 ); LLpartsValidateForDate( realPCs, zWhat ); return LLparseDate( pDateFormat, realPCs, zWhat ); } public SimpleTimestamp parseTimestamp( String pText, int pTimeFields, UtilDateAdaptor pInadequatePartsSource ) { String zWhat = "Timestamp"; List<PartCollector> zParts = LLparseToParts( pText, true ); LLpadPartsForTimestamp( zParts, pTimeFields, pInadequatePartsSource ); AbstractRealPC[] realPCs = LLinitialPartsValidate( pText, zParts, zWhat, 3 + pTimeFields ); LLpartsValidateForDate( realPCs, zWhat ); LLpartsValidateForTime( pText, realPCs, 3, pTimeFields ); SimpleDate date = LLparseDate( "yyyy-MM-dd", realPCs, zWhat ); SimpleTime time = LLparseTime( realPCs, 3, pTimeFields ); return new SimpleTimestamp( date, time ); } public SimpleTime parseTime( String pText, int pTimeFields, UtilDateAdaptor pInadequatePartsSource ) { String zWhat = "Time"; List<PartCollector> zParts = LLparseToParts( pText, false ); LLpadPartsForTime( zParts, 0, pTimeFields, pInadequatePartsSource ); AbstractRealPC[] realPCs = LLinitialPartsValidate( pText, zParts, zWhat, pTimeFields ); LLpartsValidateForTime( pText, realPCs, 0, pTimeFields ); return LLparseTime( realPCs, 0, pTimeFields ); } private PartCollector getNewCollector( char pChar, boolean pTextMonthAnOption ) { if ( Characters.isNumeric( pChar ) ) { return new NumericPC( pChar ); } if ( Characters.isAlpha( pChar ) ) { return pTextMonthAnOption ? new MonthAsTextPC( pChar ) : new StringPC( pChar ); } return SeparatorPC.INSTANCE; } private UtilDateAdaptor ensurePartsSource( UtilDateAdaptor pInadequatePartsSource ) { if ( pInadequatePartsSource == null ) { pInadequatePartsSource = new UtilDateAdaptor(); } return pInadequatePartsSource; } private List<PartCollector> LLparseToParts( String pCurrentText, boolean pTextMonthAnOption ) { List<PartCollector> zParts = new ArrayList<PartCollector>(); PartCollector zPC = SeparatorPC.INSTANCE; for ( int i = 0; i < pCurrentText.length(); i++ ) { char c = pCurrentText.charAt( i ); if ( !zPC.accept( c ) ) { if ( zPC.isReal() ) { zParts.add( zPC ); } zPC = getNewCollector( c, pTextMonthAnOption ); } } if ( zPC.isReal() ) { zParts.add( zPC ); } return zParts; } private UtilDateAdaptor LLpadPartsForDate( List<PartCollector> pParts, UtilDateAdaptor pInadequatePartsSource ) { switch ( pParts.size() ) { case 1: // assume Day only, add month pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new MonthAsTextPC( Month.nameFromMonthNumber(pInadequatePartsSource.getMonth()) ) ); case 2: // assume Month & Day, add Year pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new NumericPC( "" + pInadequatePartsSource.getYear() ) ); case 3: // assume Month, Day & Year default: break; } return pInadequatePartsSource; } private UtilDateAdaptor LLpadPartsForTimestamp( List<PartCollector> pParts, int pTimeFields, UtilDateAdaptor pInadequatePartsSource ) { pInadequatePartsSource = LLpadPartsForDate( pParts, pInadequatePartsSource ); if ( pParts.size() == 3 ) { pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new NumericPC( "" + pInadequatePartsSource.getHour() ) ); } return LLpadPartsForTime( pParts, 3, pTimeFields, pInadequatePartsSource ); } private UtilDateAdaptor LLpadPartsForTime( List<PartCollector> pParts, int pFrontParts, int pRequiredParts, UtilDateAdaptor pInadequatePartsSource ) { switch ( pParts.size() - pFrontParts ) { case 1: // assume Hour only, add Mins if ( pRequiredParts > 1 ) { pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new NumericPC( "" + pInadequatePartsSource.getMin() ) ); } case 2: // assume Hour & Min, add Secs if ( pRequiredParts > 2 ) { pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new NumericPC( "" + pInadequatePartsSource.getSec() ) ); } case 3: // assume Hour, Min, & Secs, add Millis if ( pRequiredParts > 3 ) { pInadequatePartsSource = ensurePartsSource( pInadequatePartsSource ); pParts.add( new NumericPC( "" + pInadequatePartsSource.getMilliSec() ) ); } case 4: // assume Hour, Min, Secs, & Millis default: break; } return pInadequatePartsSource; } private AbstractRealPC[] LLinitialPartsValidate( String pCurrentText, List<PartCollector> pParts, String pWhat, int pMaxParts ) { int zParts = pParts.size(); if ( zParts == 0 ) { throw badText( "No " + pWhat + " 'parts'" ); } if ( zParts > pMaxParts ) { throw badText( "More than " + pMaxParts + " " + pWhat + " 'parts'" ); } if ( zParts != pMaxParts ) { throw badText( "Expected " + pMaxParts + " " + pWhat + " 'parts', but only got " + zParts ); } AbstractRealPC[] aParts = new AbstractRealPC[zParts]; int zMonths = 0; for ( int i = 0; i < zParts; i++ ) { AbstractRealPC realPC = aParts[i] = (AbstractRealPC) pParts.get( i ); realPC.validate( pCurrentText ); if ( realPC.isMonth() ) { zMonths++; } } if ( zMonths > 1 ) { throw badText( pWhat + " with " + zMonths + " Month 'parts'" ); } return aParts; } private void LLpartsValidateForDate( AbstractRealPC[] pParts, String pWhat ) { int zYears = 0; for ( int i = 0; i < 3; i++ ) { int flags = pParts[i].getFlags(); if ( flags == OPT_YEAR ) { zYears++; } } if ( zYears > 1 ) { throw badText( pWhat + " with " + zYears + " Year 'parts'" ); } } @SuppressWarnings({"PointlessArithmeticExpression"}) private void LLpartsValidateForTime( String pCurrentText, AbstractRealPC[] pParts, int pFrontParts, int pRequiredParts ) { pParts[pFrontParts + 0].validate( pCurrentText, "Hour", 23 ); if ( pRequiredParts > 1 ) { pParts[pFrontParts + 1].validate( pCurrentText, "Min", 59 ); if ( pRequiredParts > 2 ) { pParts[pFrontParts + 2].validate( pCurrentText, "Sec", 59 ); if ( pRequiredParts > 3 ) { pParts[pFrontParts + 3].validate( pCurrentText, "MilliSec", 999 ); } } } } @SuppressWarnings({"PointlessArithmeticExpression"}) private SimpleTime LLparseTime( AbstractRealPC[] pParts, int pFrontParts, int pRequiredParts ) { switch ( pRequiredParts ) { default: case 4: return new SimpleTime( pParts[pFrontParts + 0].getNumericValue(), // Hour pParts[pFrontParts + 1].getNumericValue(), // Min pParts[pFrontParts + 2].getNumericValue(), // Sec pParts[pFrontParts + 3].getNumericValue() ); // MilliSec case 3: return new SimpleTime( pParts[pFrontParts + 0].getNumericValue(), // Hour pParts[pFrontParts + 1].getNumericValue(), // Min pParts[pFrontParts + 2].getNumericValue() ); // Sec case 2: return new SimpleTime( pParts[pFrontParts + 0].getNumericValue(), // Hour pParts[pFrontParts + 1].getNumericValue() ); // Min case 1: return new SimpleTime( pParts[pFrontParts + 0].getNumericValue() ); // Hour } } private SimpleDate LLparseDate( String pDateFormat, AbstractRealPC[] pParts, String pWhat ) { int zSwitchValue = 0; int bucketFactor = 1; int zMonthAt = -1; for ( int i = 0; i < 3; i++ ) { AbstractRealPC realPC = pParts[i]; if ( realPC.isMonth() ) { zMonthAt = i; } int flags = realPC.getFlags(); zSwitchValue += bucketFactor * flags; bucketFactor *= BUCKET_FACTOR; } switch ( zMonthAt ) { case 0: switch ( zSwitchValue ) { case B0_IS_MONTH + B1_OPT_YEAR + B2_OPT_YEARorMONTHorDAY: case B0_IS_MONTH + B1_OPT_YEAR + B2_OPT_YEARorDAY: return toDate( pDateFormat, pParts, 1, 0, 2 ); case B0_IS_MONTH + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEAR: case B0_IS_MONTH + B1_OPT_YEARorDAY + B2_OPT_YEAR: return toDate( pDateFormat, pParts, 2, 0, 1 ); case B0_IS_MONTH + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEARorDAY: case B0_IS_MONTH + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEARorMONTHorDAY: case B0_IS_MONTH + B1_OPT_YEARorDAY + B2_OPT_YEARorMONTHorDAY: case B0_IS_MONTH + B1_OPT_YEARorDAY + B2_OPT_YEARorDAY: default: return isYearBeforeDay() ? toDate( pDateFormat, pParts, 1, 0, 2 ) : toDate( pDateFormat, pParts, 2, 0, 1 ); } case 1: switch ( zSwitchValue ) { case B0_OPT_YEAR + B1_IS_MONTH + B2_OPT_YEARorMONTHorDAY: case B0_OPT_YEAR + B1_IS_MONTH + B2_OPT_YEARorDAY: return toDate( pDateFormat, pParts, 0, 1, 2 ); case B0_OPT_YEARorMONTHorDAY + B1_IS_MONTH + B2_OPT_YEAR: case B0_OPT_YEARorDAY + B1_IS_MONTH + B2_OPT_YEAR: return toDate( pDateFormat, pParts, 2, 1, 0 ); case B0_OPT_YEARorMONTHorDAY + B1_IS_MONTH + B2_OPT_YEARorDAY: case B0_OPT_YEARorMONTHorDAY + B1_IS_MONTH + B2_OPT_YEARorMONTHorDAY: case B0_OPT_YEARorDAY + B1_IS_MONTH + B2_OPT_YEARorMONTHorDAY: case B0_OPT_YEARorDAY + B1_IS_MONTH + B2_OPT_YEARorDAY: default: return isYearBeforeMonth() ? toDate( pDateFormat, pParts, 0, 1, 2 ) : toDate( pDateFormat, pParts, 2, 1, 0 ); } case 2: switch ( zSwitchValue ) { case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEAR + B2_IS_MONTH: case B0_OPT_YEARorDAY + B1_OPT_YEAR + B2_IS_MONTH: return toDate( pDateFormat, pParts, 1, 2, 0 ); case B0_OPT_YEAR + B1_OPT_YEARorMONTHorDAY + B2_IS_MONTH: case B0_OPT_YEAR + B1_OPT_YEARorDAY + B2_IS_MONTH: return toDate( pDateFormat, pParts, 0, 2, 1 ); case B0_OPT_YEARorDAY + B1_OPT_YEARorMONTHorDAY + B2_IS_MONTH: case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEARorMONTHorDAY + B2_IS_MONTH: case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEARorDAY + B2_IS_MONTH: case B0_OPT_YEARorDAY + B1_OPT_YEARorDAY + B2_IS_MONTH: default: return isYearBeforeDay() ? toDate( pDateFormat, pParts, 0, 2, 1 ) : toDate( pDateFormat, pParts, 1, 0, 2 ); } default: switch ( zSwitchValue ) { case B0_OPT_YEAR + B1_OPT_YEARorDAY + B2_OPT_YEARorDAY: break; case B0_OPT_YEAR + B1_OPT_YEARorDAY + B2_OPT_YEARorMONTHorDAY: return toDate( pDateFormat, pParts, 0, 2, 1 ); case B0_OPT_YEAR + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEARorDAY: return toDate( pDateFormat, pParts, 0, 1, 2 ); case B0_OPT_YEAR + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEARorMONTHorDAY: return isDayBeforeMonth() ? toDate( pDateFormat, pParts, 0, 2, 1 ) : toDate( pDateFormat, pParts, 0, 1, 2 ); case B0_OPT_YEARorDAY + B1_OPT_YEAR + B2_OPT_YEARorDAY: break; case B0_OPT_YEARorDAY + B1_OPT_YEAR + B2_OPT_YEARorMONTHorDAY: return toDate( pDateFormat, pParts, 1, 2, 0 ); case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEAR + B2_OPT_YEARorDAY: return toDate( pDateFormat, pParts, 1, 0, 2 ); case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEAR + B2_OPT_YEARorMONTHorDAY: return isDayBeforeMonth() ? toDate( pDateFormat, pParts, 1, 2, 0 ) : toDate( pDateFormat, pParts, 1, 0, 2 ); case B0_OPT_YEARorDAY + B1_OPT_YEARorDAY + B2_OPT_YEAR: break; case B0_OPT_YEARorDAY + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEAR: return toDate( pDateFormat, pParts, 2, 1, 0 ); case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEARorDAY + B2_OPT_YEAR: return toDate( pDateFormat, pParts, 2, 0, 1 ); case B0_OPT_YEARorMONTHorDAY + B1_OPT_YEARorMONTHorDAY + B2_OPT_YEAR: return isDayBeforeMonth() ? toDate( pDateFormat, pParts, 2, 1, 0 ) : toDate( pDateFormat, pParts, 2, 0, 1 ); default: break; } throw badText( "No " + pWhat + " 'part' that could be a Month" ); } } private IllegalArgumentException badText( String pWhy ) { String zWhy = "Could not interpret"; if ( pWhy != null ) { zWhy += ": " + pWhy; } return new IllegalArgumentException( zWhy ); } private SimpleDate toDate( String pDateFormat, // AbstractRealPC[] pParts, int pYearNdx, int pMonthNdx, int pDayNdx ) { return new SimpleDate( null, // TODO: XXX pDateFormat, pParts[pYearNdx].getYear(), pParts[pMonthNdx].getMonth(), pParts[pDayNdx].getDay() ); } private transient LateBooleanFieldOrder mYearBeforeMonth = new LateBooleanFieldOrder(); private boolean isYearBeforeMonth() { return mYearBeforeMonth.isBefore( mFieldOrder, DateRes.INDICATOR_YEAR, DateRes.INDICATOR_MONTH ); } private transient LateBooleanFieldOrder mYearBeforeDay = new LateBooleanFieldOrder(); private boolean isYearBeforeDay() { return mYearBeforeDay.isBefore( mFieldOrder, DateRes.INDICATOR_YEAR, DateRes.INDICATOR_DAY ); } private transient LateBooleanFieldOrder mDayBeforeMonth = new LateBooleanFieldOrder(); private boolean isDayBeforeMonth() { return mDayBeforeMonth.isBefore( mFieldOrder, DateRes.INDICATOR_DAY, DateRes.INDICATOR_MONTH ); } private static class LateBooleanFieldOrder { private Boolean mFlag = null; public synchronized boolean isBefore( String pFieldOrder, char pIndicator1st, char pIndicator2nd ) { if ( mFlag == null ) { mFlag = Boolean.FALSE; int at1st = pFieldOrder.indexOf( pIndicator1st ); if ( at1st != -1 ) { int at2nd = pFieldOrder.indexOf( pIndicator2nd ); if ( (at2nd != -1) && (at1st < at2nd) ) { mFlag = Boolean.TRUE; } } } return mFlag; } } } |
Commits for litesoft/trunk/Java/core/Anywhere/src/org/litesoft/core/simpletypes/temporal/nonpublic/TemporalParser.java
Revision | Author | Commited | Message |
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851 Diff | GeorgeS | Mon 08 Oct, 2012 00:05:32 +0000 | Breaking the code as Temporal changes are implemented... |
811 Diff | GeorgeS | Sat 18 Aug, 2012 13:45:18 +0000 | |
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 |