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TemporalValue.java
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TemporalValue.java
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/*
* Copyright (c) 2002-2018 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.values.storable;
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.OffsetTime;
import java.time.ZoneId;
import java.time.format.DateTimeParseException;
import java.time.temporal.ChronoField;
import java.time.temporal.IsoFields;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAdjuster;
import java.time.temporal.TemporalAmount;
import java.time.temporal.TemporalField;
import java.time.temporal.TemporalQuery;
import java.time.temporal.TemporalUnit;
import java.time.temporal.ValueRange;
import java.util.EnumMap;
import java.util.HashMap;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.neo4j.helpers.collection.Pair;
import org.neo4j.values.AnyValue;
import org.neo4j.values.StructureBuilder;
import static org.neo4j.values.storable.DateTimeValue.parseZoneName;
import static org.neo4j.values.storable.IntegralValue.safeCastIntegral;
import static org.neo4j.values.storable.NumberType.NO_NUMBER;
public abstract class TemporalValue<T extends Temporal, V extends TemporalValue<T,V>>
extends ScalarValue implements Temporal
{
TemporalValue()
{
// subclasses are confined to this package,
// but type-checking is valuable to be able to do outside
// (therefore the type itself is public)
}
private static final String DEFAULT_WHEN = "statement";
public abstract TemporalValue add( DurationValue duration );
public abstract TemporalValue sub( DurationValue duration );
abstract T temporal();
abstract LocalDate getDatePart();
abstract LocalTime getLocalTimePart();
abstract OffsetTime getTimePart( Supplier<ZoneId> defaultZone );
abstract ZoneId getZoneId( Supplier<ZoneId> defaultZone );
abstract boolean hasTimeZone();
abstract V replacement( T temporal );
@Override
public final T asObjectCopy()
{
return temporal();
}
@Override
@SuppressWarnings( "unchecked" )
public final V with( TemporalAdjuster adjuster )
{
return replacement( (T) temporal().with( adjuster ) );
}
@Override
@SuppressWarnings( "unchecked" )
public final V plus( TemporalAmount amount )
{
return replacement( (T) temporal().plus( amount ) );
}
@Override
@SuppressWarnings( "unchecked" )
public final V minus( TemporalAmount amount )
{
return replacement( (T) temporal().minus( amount ) );
}
@Override
@SuppressWarnings( "unchecked" )
public final V minus( long amountToSubtract, TemporalUnit unit )
{
return replacement( (T) temporal().minus( amountToSubtract, unit ) );
}
@Override
public final boolean isSupported( TemporalUnit unit )
{
return temporal().isSupported( unit );
}
@Override
@SuppressWarnings( "unchecked" )
public final V with( TemporalField field, long newValue )
{
return replacement( (T) temporal().with( field, newValue ) );
}
@Override
@SuppressWarnings( "unchecked" )
public final V plus( long amountToAdd, TemporalUnit unit )
{
return replacement( (T) temporal().plus( amountToAdd, unit ) );
}
@Override
public final long until( Temporal endExclusive, TemporalUnit unit )
{
return temporal().until( endExclusive, unit );
}
@Override
public final ValueRange range( TemporalField field )
{
return temporal().range( field );
}
@Override
public final int get( TemporalField field )
{
return temporal().get( field );
}
@Override
public <R> R query( TemporalQuery<R> query )
{
return temporal().query( query );
}
@Override
public final boolean isSupported( TemporalField field )
{
return temporal().isSupported( field );
}
@Override
public final long getLong( TemporalField field )
{
return temporal().getLong( field );
}
@Override
public final NumberType numberType()
{
return NO_NUMBER;
}
@Override
public final boolean equals( boolean x )
{
return false;
}
@Override
public final boolean equals( long x )
{
return false;
}
@Override
public final boolean equals( double x )
{
return false;
}
@Override
public final boolean equals( char x )
{
return false;
}
@Override
public final boolean equals( String x )
{
return false;
}
@Override
public String toString()
{
return prettyPrint();
}
static <VALUE> VALUE parse( Class<VALUE> type, Pattern pattern, Function<Matcher,VALUE> parser, CharSequence text )
{
Matcher matcher = pattern.matcher( text );
VALUE result = matcher.matches() ? parser.apply( matcher ) : null;
if ( result == null )
{
throw new DateTimeParseException(
"Text cannot be parsed to a " + valueName( type ), text, 0 );
}
return result;
}
static <VALUE> VALUE parse( Class<VALUE> type, Pattern pattern, Function<Matcher,VALUE> parser, TextValue text )
{
Matcher matcher = text.matcher( pattern );
VALUE result = matcher != null && matcher.matches() ? parser.apply( matcher ) : null;
if ( result == null )
{
throw new DateTimeParseException(
"Text cannot be parsed to a " + valueName( type ), text.stringValue(), 0 );
}
return result;
}
static <VALUE> VALUE parse(
Class<VALUE> type,
Pattern pattern,
BiFunction<Matcher,Supplier<ZoneId>,VALUE> parser,
CharSequence text,
Supplier<ZoneId> defaultZone )
{
Matcher matcher = pattern.matcher( text );
VALUE result = matcher.matches() ? parser.apply( matcher, defaultZone ) : null;
if ( result == null )
{
throw new DateTimeParseException(
"Text cannot be parsed to a " + valueName( type ), text, 0 );
}
return result;
}
static <VALUE> VALUE parse(
Class<VALUE> type,
Pattern pattern,
BiFunction<Matcher,Supplier<ZoneId>,VALUE> parser,
TextValue text,
Supplier<ZoneId> defaultZone )
{
Matcher matcher = text.matcher( pattern );
VALUE result = matcher != null && matcher.matches() ? parser.apply( matcher, defaultZone ) : null;
if ( result == null )
{
throw new DateTimeParseException(
"Text cannot be parsed to a " + valueName( type ), text.stringValue(), 0 );
}
return result;
}
private static <VALUE> String valueName( Class<VALUE> type )
{
String name = type.getSimpleName();
return name.substring( 0, name.length() - /*"Value" is*/5/*characters*/ );
}
abstract static class Builder<Result> implements StructureBuilder<AnyValue,Result>
{
private final Supplier<ZoneId> defaultZone;
private DateTimeBuilder state;
protected AnyValue timezone;
protected Map<Field,AnyValue> fields = new EnumMap<>( Field.class );
Builder( Supplier<ZoneId> defaultZone )
{
this.defaultZone = defaultZone;
}
@Override
public final Result build()
{
if ( state == null )
{
throw new IllegalArgumentException( "Builder state empty" );
}
state.checkAssignments( this.supportsDate() );
return buildInternal();
}
<Temp extends Temporal> Temp assignAllFields( Temp temp )
{
Temp result = temp;
for ( Map.Entry<Field,AnyValue> entry : fields.entrySet() )
{
Field f = entry.getKey();
if ( !f.isGroupSelector() && f != Field.timezone && f != Field.millisecond && f != Field.microsecond && f != Field.nanosecond )
{
TemporalField temporalField = f.field;
result = (Temp) result.with( temporalField, safeCastIntegral( f.name(), entry.getValue(), f.defaultValue ) );
}
}
// Assign all sub-second parts in one step
if ( supportsTime() &&
(fields.containsKey( Field.millisecond ) || fields.containsKey( Field.microsecond ) || fields.containsKey( Field.nanosecond )) )
{
result = (Temp) result.with( Field.nanosecond.field,
validNano( fields.get( Field.millisecond ), fields.get( Field.microsecond ), fields.get( Field.nanosecond ) ) );
}
return result;
}
static int validNano( AnyValue millisecond, AnyValue microsecond, AnyValue nanosecond )
{
long ms = safeCastIntegral( "millisecond", millisecond, Field.millisecond.defaultValue );
long us = safeCastIntegral( "microsecond", microsecond, Field.microsecond.defaultValue );
long ns = safeCastIntegral( "nanosecond", nanosecond, Field.nanosecond.defaultValue );
if ( ms < 0 || ms >= 1000 )
{
throw new IllegalArgumentException( "Invalid millisecond: " + ms );
}
if ( us < 0 || us >= (millisecond != null || nanosecond != null ? 1000 : 1000_000) )
{
throw new IllegalArgumentException( "Invalid microsecond: " + us );
}
if ( ns < 0 || ns >= ((millisecond != null || microsecond != null) ? 1000 : 1000_000_000) )
{
throw new IllegalArgumentException( "Invalid nanosecond: " + ns );
}
return (int) (ms * 1000_000 + us * 1000 + ns);
}
@Override
public final StructureBuilder<AnyValue,Result> add( String fieldName, AnyValue value )
{
Field field = Field.fields.get( fieldName.toLowerCase() );
if ( field == null )
{
throw new IllegalArgumentException( "No such field: " + fieldName );
}
// Change state
field.assign( this, value );
// Set field for this builder
fields.put( field, value );
return this;
}
@SuppressWarnings( "BooleanMethodIsAlwaysInverted" )
private boolean supports( TemporalField field )
{
if ( field.isDateBased() )
{
return supportsDate();
}
if ( field.isTimeBased() )
{
return supportsTime();
}
throw new IllegalStateException( "Fields should be either date based or time based" );
}
protected abstract boolean supportsDate();
protected abstract boolean supportsTime();
protected abstract boolean supportsTimeZone();
protected abstract boolean supportsEpoch();
protected ZoneId timezone( AnyValue timezone )
{
return timezone == null ? defaultZone.get() : timezoneOf( timezone );
}
// Construction
protected abstract Result buildInternal();
// Timezone utilities
protected final ZoneId optionalTimezone()
{
return timezone == null ? null : timezone();
}
protected final ZoneId timezone()
{
return timezone( timezone );
}
protected final ZoneId timezoneOf( AnyValue timezone )
{
if ( timezone instanceof TextValue )
{
return parseZoneName( ((TextValue) timezone).stringValue() );
}
throw new UnsupportedOperationException( "Cannot convert to ZoneId: " + timezone );
}
}
protected enum Field
{
year( ChronoField.YEAR, 0 ),
quarter( IsoFields.QUARTER_OF_YEAR, 1 ),
month( ChronoField.MONTH_OF_YEAR, 1 ),
week( IsoFields.WEEK_OF_WEEK_BASED_YEAR, 1 ),
ordinalDay( ChronoField.DAY_OF_YEAR, 1 ),
dayOfQuarter( IsoFields.DAY_OF_QUARTER, 1 ),
dayOfWeek( ChronoField.DAY_OF_WEEK, 1 ),
day( ChronoField.DAY_OF_MONTH, 1 ),
hour( ChronoField.HOUR_OF_DAY, 0 ),
minute( ChronoField.MINUTE_OF_HOUR, 0 ),
second( ChronoField.SECOND_OF_MINUTE, 0 ),
millisecond( ChronoField.MILLI_OF_SECOND, 0 ),
microsecond( ChronoField.MICRO_OF_SECOND, 0 ),
nanosecond( ChronoField.NANO_OF_SECOND, 0 ),
timezone//<pre>
{ //</pre>
@Override
void assign( Builder<?> builder, AnyValue value )
{
if ( !builder.supportsTimeZone() )
{
throw new IllegalArgumentException( "Cannot assign time zone if also assigning other fields." );
}
if ( builder.timezone != null )
{
throw new IllegalArgumentException( "Cannot assign timezone twice." );
}
builder.timezone = value;
}
},
// group selectors
date//<pre>
{ //</pre>
@Override
void assign( Builder<?> builder, AnyValue value )
{
if ( !builder.supportsDate() )
{
throw new IllegalArgumentException( "Not supported: " + name() );
}
if ( builder.state == null )
{
builder.state = new DateTimeBuilder();
}
builder.state = builder.state.assign( this, value );
}
@Override
boolean isGroupSelector()
{
return true;
}
},
time//<pre>
{ //</pre>
@Override
void assign( Builder<?> builder, AnyValue value )
{
if ( !builder.supportsTime() )
{
throw new IllegalArgumentException( "Not supported: " + name() );
}
if ( builder.state == null )
{
builder.state = new DateTimeBuilder();
}
builder.state = builder.state.assign( this, value );
}
@Override
boolean isGroupSelector()
{
return true;
}
},
datetime//<pre>
{ //</pre>
@Override
void assign( Builder<?> builder, AnyValue value )
{
if ( !builder.supportsDate() || !builder.supportsTime() )
{
throw new IllegalArgumentException( "Not supported: " + name() );
}
if ( builder.state == null )
{
builder.state = new DateTimeBuilder( );
}
builder.state = builder.state.assign( this, value );
}
@Override
boolean isGroupSelector()
{
return true;
}
},
epoch//<pre>
{ //<pre>
@Override
void assign( Builder<?> builder, AnyValue value )
{
if ( !builder.supportsEpoch() )
{
throw new IllegalArgumentException( "Not supported: " + name() );
}
if ( builder.state == null )
{
builder.state = new DateTimeBuilder( );
}
builder.state = builder.state.assign( this, value );
}
@Override
boolean isGroupSelector()
{
return true;
}
};
private static final Map<String,Field> fields = new HashMap<>();
static
{
for ( Field field : values() )
{
fields.put( field.name().toLowerCase(), field );
}
// aliases
fields.put( "weekday", dayOfWeek );
fields.put( "quarterday", dayOfQuarter );
}
final TemporalField field;
final int defaultValue;
Field( TemporalField field, int defaultValue )
{
this.field = field;
this.defaultValue = defaultValue;
}
Field()
{
this.field = null;
this.defaultValue = -1;
}
boolean isGroupSelector()
{
return false;
}
void assign( Builder<?> builder, AnyValue value )
{
assert field != null : "method should have been overridden";
if ( !builder.supports( field ) )
{
throw new IllegalArgumentException( "Not supported: " + name() );
}
if ( builder.state == null )
{
builder.state = new DateTimeBuilder();
}
builder.state = builder.state.assign( this, value );
}
}
private static class DateTimeBuilder
{
protected DateBuilder date;
protected ConstructTime time;
DateTimeBuilder()
{
}
DateTimeBuilder( DateBuilder date, ConstructTime time )
{
this.date = date;
this.time = time;
}
void checkAssignments( boolean requiresDate )
{
if ( date != null )
{
date.checkAssignments();
}
if ( time != null )
{
if ( requiresDate )
{
if ( date != null )
{
date.assertFullyAssigned();
}
else
{
throw new IllegalArgumentException( Field.year.name() + " must be specified" );
}
}
time.checkAssignments();
}
}
DateTimeBuilder assign( Field field, AnyValue value )
{
if ( field == Field.datetime || field == Field.epoch )
{
return new SelectDateTimeDTBuilder( date, time ).assign( field, value );
}
else if ( field == Field.time || field == Field.date )
{
return new SelectDateOrTimeDTBuilder( date, time ).assign( field, value );
}
else
{
return assignToSubBuilders( field, value );
}
}
DateTimeBuilder assignToSubBuilders( Field field, AnyValue value )
{
if ( field == Field.date || field.field != null && field.field.isDateBased() )
{
if ( date == null )
{
date = new ConstructDate();
}
date = date.assign( field, value );
}
else if ( field == Field.time || field.field != null && field.field.isTimeBased() )
{
if ( time == null )
{
time = new ConstructTime();
}
time.assign( field, value );
}
else
{
throw new IllegalStateException( "This method should not be used for any fields the DateBuilder or TimeBuilder can't handle" );
}
return this;
}
}
private static class SelectDateTimeDTBuilder extends DateTimeBuilder
{
private AnyValue datetime;
private AnyValue epoch;
SelectDateTimeDTBuilder( DateBuilder date, ConstructTime time )
{
super( date, time );
}
@Override
void checkAssignments( boolean requiresDate )
{
// Nothing to do
}
@Override
DateTimeBuilder assign( Field field, AnyValue value )
{
if ( field == Field.date || field == Field.time )
{
throw new IllegalArgumentException( field.name() + " cannot be selected together with datetime or epoch." );
}
else if ( field == Field.datetime )
{
if ( epoch != null )
{
throw new IllegalArgumentException( field.name() + " cannot be selected together with epoch." );
}
datetime = assignment( Field.datetime, datetime, value );
}
else if ( field == Field.epoch )
{
if ( datetime != null )
{
throw new IllegalArgumentException( field.name() + " cannot be selected together with datetime." );
}
epoch = assignment( Field.epoch, epoch, value );
}
else
{
return assignToSubBuilders( field, value );
}
return this;
}
}
private static class SelectDateOrTimeDTBuilder extends DateTimeBuilder
{
SelectDateOrTimeDTBuilder( DateBuilder date, ConstructTime time )
{
super( date, time );
}
@Override
DateTimeBuilder assign( Field field, AnyValue value )
{
if ( field == Field.datetime || field == Field.epoch )
{
throw new IllegalArgumentException( field.name() + " cannot be selected together with date or time." );
}
else
{
return assignToSubBuilders( field, value );
}
}
}
private abstract static class DateBuilder
{
abstract DateBuilder assign( Field field, AnyValue value );
abstract void checkAssignments();
abstract void assertFullyAssigned();
}
private static final class ConstructTime
{
private AnyValue hour;
private AnyValue minute;
private AnyValue second;
private AnyValue millisecond;
private AnyValue microsecond;
private AnyValue nanosecond;
private AnyValue time;
ConstructTime()
{
}
void assign( Field field, AnyValue value )
{
switch ( field )
{
case hour:
hour = assignment( field, hour, value );
break;
case minute:
minute = assignment( field, minute, value );
break;
case second:
second = assignment( field, second, value );
break;
case millisecond:
millisecond = assignment( field, millisecond, value );
break;
case microsecond:
microsecond = assignment( field, microsecond, value );
break;
case nanosecond:
nanosecond = assignment( field, nanosecond, value );
break;
case time:
case datetime:
time = assignment( field, time, value );
break;
default:
throw new IllegalStateException( "Not a time field: " + field );
}
}
void checkAssignments()
{
if ( time == null )
{
assertDefinedInOrder( Pair.of( hour, "hour" ), Pair.of( minute, "minute" ), Pair.of( second, "second" ),
Pair.of( oneOf( millisecond, microsecond, nanosecond ), "subsecond" ) );
}
}
}
private static class ConstructDate extends DateBuilder
{
AnyValue year;
AnyValue date;
ConstructDate()
{
}
ConstructDate( AnyValue date )
{
this.date = date;
}
@Override
ConstructDate assign( Field field, AnyValue value )
{
switch ( field )
{
case year:
year = assignment( field, year, value );
return this;
case quarter:
case dayOfQuarter:
return new QuarterDate( year, date ).assign( field, value );
case month:
case day:
return new CalendarDate( year, date ).assign( field, value );
case week:
case dayOfWeek:
return new WeekDate( year, date ).assign( field, value );
case ordinalDay:
return new OrdinalDate( year, date ).assign( field, value );
case date:
case datetime:
date = assignment( field, date, value );
return this;
default:
throw new IllegalStateException( "Not a date field: " + field );
}
}
@Override
void checkAssignments()
{
// Nothing to do
}
@Override
void assertFullyAssigned()
{
if ( date == null )
{
throw new IllegalArgumentException( Field.month.name() + " must be specified" );
}
}
}
private static final class CalendarDate extends ConstructDate
{
private AnyValue month;
private AnyValue day;
CalendarDate( AnyValue year, AnyValue date )
{
this.year = year;
this.date = date;
}
@Override
ConstructDate assign( Field field, AnyValue value )
{
switch ( field )
{
case year:
year = assignment( field, year, value );
return this;
case month:
month = assignment( field, month, value );
return this;
case day:
day = assignment( field, day, value );
return this;
case date:
case datetime:
date = assignment( field, date, value );
return this;
default:
throw new IllegalArgumentException( "Cannot assign " + field + " to calendar date." );
}
}
@Override
void checkAssignments()
{
if ( date == null )
{
assertDefinedInOrder( Pair.of( year, "year" ), Pair.of( month, "month" ), Pair.of( day, "day" ) );
}
}
@Override
void assertFullyAssigned()
{
if ( date == null )
{
assertAllDefined( Pair.of( year, "year" ), Pair.of( month, "month" ), Pair.of( day, "day" ) );
}
}
}
private static final class WeekDate extends ConstructDate
{
private AnyValue week;
private AnyValue dayOfWeek;
WeekDate( AnyValue year, AnyValue date )
{
this.year = year;
this.date = date;
}
@Override
ConstructDate assign( Field field, AnyValue value )
{
switch ( field )
{
case year:
year = assignment( field, year, value );
return this;
case week:
week = assignment( field, week, value );
return this;
case dayOfWeek:
dayOfWeek = assignment( field, dayOfWeek, value );
return this;
case date:
case datetime:
date = assignment( field, date, value );
return this;
default:
throw new IllegalArgumentException( "Cannot assign " + field + " to week date." );
}
}
@Override
void checkAssignments()
{
if ( date == null )
{
assertDefinedInOrder( Pair.of( year, "year" ), Pair.of( week, "week" ), Pair.of( dayOfWeek, "dayOfWeek" ) );
}
}
@Override
void assertFullyAssigned()
{
if ( date == null )
{
assertAllDefined( Pair.of( year, "year" ), Pair.of( week, "week" ), Pair.of( dayOfWeek, "dayOfWeek" ) );
}
}
}
private static final class QuarterDate extends ConstructDate
{
private AnyValue quarter;
private AnyValue dayOfQuarter;
QuarterDate( AnyValue year, AnyValue date )
{
this.year = year;
this.date = date;
}
@Override
ConstructDate assign( Field field, AnyValue value )
{
switch ( field )
{
case year:
year = assignment( field, year, value );
return this;
case quarter:
quarter = assignment( field, quarter, value );
return this;
case dayOfQuarter:
dayOfQuarter = assignment( field, dayOfQuarter, value );
return this;
case date:
case datetime:
date = assignment( field, date, value );
return this;
default:
throw new IllegalArgumentException( "Cannot assign " + field + " to quarter date." );
}
}
@Override
void checkAssignments()