/*
* -----------------------------------------------------------------------
* Copyright © 2013-2016 Meno Hochschild, <http://www.menodata.de/>
* -----------------------------------------------------------------------
* This file (AmPmElement.java) is part of project Time4J.
*
* Time4J is free software: You can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* Time4J 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Time4J. If not, see <http://www.gnu.org/licenses/>.
* -----------------------------------------------------------------------
*/
package net.time4j;
import net.time4j.engine.AttributeQuery;
import net.time4j.engine.ChronoDisplay;
import net.time4j.engine.ChronoException;
import net.time4j.engine.ChronoFunction;
import net.time4j.format.Attributes;
import net.time4j.format.CalendarText;
import net.time4j.format.Leniency;
import net.time4j.format.OutputContext;
import net.time4j.format.TextAccessor;
import net.time4j.format.TextWidth;
import net.time4j.format.internal.GregorianTextElement;
import net.time4j.tz.TZID;
import net.time4j.tz.Timezone;
import net.time4j.tz.ZonalOffset;
import java.io.IOException;
import java.text.ParsePosition;
import java.util.Locale;
/**
* <p>Repräsentiert das Halbtagselement. </p>
*
* @author Meno Hochschild
* @concurrency <immutable>
*/
enum AmPmElement
implements ZonalElement<Meridiem>, GregorianTextElement<Meridiem> {
//~ Statische Felder/Initialisierungen --------------------------------
AM_PM_OF_DAY;
//~ Methoden ----------------------------------------------------------
@Override
public Class<Meridiem> getType() {
return Meridiem.class;
}
@Override
public char getSymbol() {
return 'a';
}
@Override
public int compare(
ChronoDisplay o1,
ChronoDisplay o2
) {
return o1.get(this).compareTo(o2.get(this));
}
@Override
public Meridiem getDefaultMinimum() {
return Meridiem.AM;
}
@Override
public Meridiem getDefaultMaximum() {
return Meridiem.PM;
}
@Override
public boolean isDateElement() {
return false;
}
@Override
public boolean isTimeElement() {
return true;
}
@Override
public boolean isLenient() {
return false;
}
@Override
public ChronoFunction<Moment, Meridiem> inStdTimezone() {
return this.in(Timezone.ofSystem());
}
@Override
public ChronoFunction<Moment, Meridiem> inTimezone(TZID tzid) {
return this.in(Timezone.of(tzid));
}
@Override
public ChronoFunction<Moment, Meridiem> in(Timezone tz) {
return new ZonalQuery<>(this, tz);
}
@Override
public ChronoFunction<Moment, Meridiem> atUTC() {
return this.at(ZonalOffset.UTC);
}
@Override
public ChronoFunction<Moment, Meridiem> at(ZonalOffset offset) {
return new ZonalQuery<>(this, offset);
}
@Override
public String getDisplayName(Locale language) {
String lname = CalendarText.getIsoInstance(language).getTextForms().get("L_dayperiod");
return ((lname == null) ? this.name() : lname);
}
@Override
public void print(
ChronoDisplay context,
Appendable buffer,
AttributeQuery attributes
) throws IOException {
buffer.append(this.accessor(attributes).print(context.get(this)));
}
@Override
public Meridiem parse(
CharSequence text,
ParsePosition status,
AttributeQuery attributes
) {
return this.accessor(attributes).parse(text, status, this.getType(), attributes);
}
@Override
public void print(
ChronoDisplay context,
Appendable buffer,
Locale language,
TextWidth tw,
OutputContext oc
) throws IOException, ChronoException {
buffer.append(this.accessor(language, tw, oc).print(context.get(this)));
}
@Override
public Meridiem parse(
CharSequence text,
ParsePosition status,
Locale language,
TextWidth tw,
OutputContext oc,
Leniency leniency
) {
return this.accessor(language, tw, oc).parse(text, status, this.getType(), leniency);
}
private TextAccessor accessor(AttributeQuery attributes) {
CalendarText cnames = CalendarText.getIsoInstance(attributes.get(Attributes.LANGUAGE, Locale.ROOT));
TextWidth textWidth = attributes.get(Attributes.TEXT_WIDTH, TextWidth.WIDE);
OutputContext outputContext = attributes.get(Attributes.OUTPUT_CONTEXT, OutputContext.FORMAT);
return cnames.getMeridiems(textWidth, outputContext);
}
private TextAccessor accessor(
Locale language,
TextWidth textWidth,
OutputContext outputContext
) {
return CalendarText.getIsoInstance(language).getMeridiems(textWidth, outputContext);
}
}