jfxtras.scene.control.agenda.TemporalUtilities Maven / Gradle / Ivy
/**
* TemporalUtilities.java
*
* Copyright (c) 2011-2016, JFXtras
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the organization nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package jfxtras.scene.control.agenda;
import java.time.DateTimeException;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.chrono.HijrahDate;
import java.time.chrono.JapaneseDate;
import java.time.chrono.MinguoDate;
import java.time.chrono.ThaiBuddhistDate;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAdjuster;
import java.util.HashMap;
import java.util.Map;
/**
* Contains the methods to convert to and from LocalDateTime to other Temporal classes
*
* @author David Bal
* @see Agenda.AppointmentImplTemporal
*
*/
public final class TemporalUtilities
{
private TemporalUtilities() { }
/** applies the parameter adjuster to the initialTemporal
* adjuster must be either LocalDate or LocalDateTime
*
* For example, If initialTemporal is a ZonedDateTime object representing 2007-12-03T10:15:30+01:00 Europe/Paris
* and adjuster represents 2007-12-05T10:12:30 then the returned Temporal will be
* 2007-12-05T10:12:30+01:00 Europe/Paris
*
* Another example, if initialTemporal is a LocalDate object representing 2007-12-03
* and adjuster represents 2007-12-05T10:12:30 then the returned Temporal will be
* 2007-12-05
*
*/
public static Temporal combine(Temporal initialTemporal, TemporalAdjuster adjuster)
{
return TemporalType.from(initialTemporal.getClass()).combineByType(initialTemporal, adjuster);
}
/** makes LocalDateTime from temporal followed rules in TemporalType */
public static LocalDateTime toLocalDateTime(Temporal temporal)
{
return TemporalType.from(temporal.getClass()).toLocalDateTimeByType(temporal);
}
public enum TemporalType
{
HIJRAH_DATE (HijrahDate.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDate.from(t).atStartOfDay(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return combineDateBased(initialTemporal, adjuster); }
}
, INSTANT (Instant.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDateTime.ofInstant(Instant.from(t), ZoneId.systemDefault()); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return initialTemporal.with(adjuster); }
}
, JAPANESE_DATE (JapaneseDate.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDate.from(t).atStartOfDay(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return combineDateBased(initialTemporal, adjuster); }
}
, LOCAL_DATE (LocalDate.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDate.from(t).atStartOfDay(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return combineDateBased(initialTemporal, adjuster); }
}
, LOCAL_DATE_TIME (LocalDateTime.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDateTime.from(t); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return initialTemporal.with(adjuster); }
}
, MINGUO_DATE (MinguoDate.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDate.from(t).atStartOfDay(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return combineDateBased(initialTemporal, adjuster); }
}
, OFFSET_DATE_TIME (OffsetDateTime.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t)
{
ZoneOffset o = ZonedDateTime.now().getOffset();
return OffsetDateTime.from(t).withOffsetSameInstant(o).toLocalDateTime();
}
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return initialTemporal.with(adjuster); }
}
, THAI_BUDDHIST_DATE (ThaiBuddhistDate.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return LocalDate.from(t).atStartOfDay(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return combineDateBased(initialTemporal, adjuster); }
}
, ZONED_DATE_TIME (ZonedDateTime.class) {
@Override
protected LocalDateTime toLocalDateTimeByType(Temporal t) { return ZonedDateTime.from(t).withZoneSameInstant(ZoneId.systemDefault()).toLocalDateTime(); }
@Override
protected Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster) { return initialTemporal.with(adjuster); }
};
// Map to match up Temporal class to TemporalType enum
private static Map, TemporalType> temporalClassToTemporalTypeMap = makeMap();
private static Map, TemporalType> makeMap()
{
Map, TemporalType> map = new HashMap<>();
TemporalType[] values = TemporalType.values();
for (int i=0; i clazz)
{
return temporalClassToTemporalTypeMap.get(clazz);
}
/* combine for all date-based Temporal classes, such as LocalDate, JapaneseDate, etc ) */
private static Temporal combineDateBased(Temporal initialTemporal, TemporalAdjuster adjuster)
{
if (adjuster instanceof LocalDate)
{
return initialTemporal.with(adjuster);
} else if (adjuster instanceof LocalDateTime)
{
return (LocalDateTime) adjuster; // adding time to initialTemporal
} else
{
throw new DateTimeException("Unsupported TemporalAdjuster:" + adjuster);
}
}
private Class clazz;
/** Class backing the TemporalType */
public Class getTemporalClass() { return clazz; }
TemporalType(Class clazz) { this.clazz = clazz; }
/** makes LocalDateTime from temporal that matches the TemporalType */
protected abstract LocalDateTime toLocalDateTimeByType(Temporal t);
/** applies the parameter adjuster to the initialTemporal
* adjuster must be either LocalDate or LocalDateTime
* If adjuster contains time, but initialTemporal doesn't, then the returned Temporal
* will be changed to contain time (as LocalDateTime).
*
* For example, If initialTemporal is a ZonedDateTime object representing 2007-12-03T10:15:30+01:00 Europe/Paris
* and adjuster represents 2007-12-05T10:12:30 then the returned Temporal will be
* 2007-12-05T10:12:30+01:00 Europe/Paris
*
* Another example, if initialTemporal is a LocalDate object representing 2007-12-03
* and adjuster represents 2007-12-05T10:12:30 then the returned Temporal will be
* 2007-12-05T10:12:30
*/
protected abstract Temporal combineByType(Temporal initialTemporal, TemporalAdjuster adjuster);
}
}
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