javafx.util.converter.DateTimeStringConverter Maven / Gradle / Ivy
/*
* Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javafx.util.converter;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import javafx.util.StringConverter;
/**
* {@link StringConverter} implementation for {@link Date} values that
* represent a date and time.
*
* @see DateStringConverter
* @see TimeStringConverter
* @since JavaFX 2.1
*/
public class DateTimeStringConverter extends StringConverter {
// ------------------------------------------------------ Private properties
protected final Locale locale;
protected final String pattern;
protected final DateFormat dateFormat;
/**
* @since JavaFX 8u40
*/
protected final int dateStyle;
/**
* @since JavaFX 8u40
*/
protected final int timeStyle;
// ------------------------------------------------------------ Constructors
/**
* Create a {@link StringConverter} for {@link Date} values, using
* {@link DateFormat#DEFAULT} styles for date and time.
*/
public DateTimeStringConverter() {
this(null, null, null, DateFormat.DEFAULT, DateFormat.DEFAULT);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using specified
* {@link DateFormat} styles for date and time.
*
* @param dateStyle the given formatting style. For example,
* {@link DateFormat#SHORT} for "M/d/yy" in the US locale.
* @param timeStyle the given formatting style. For example,
* {@link DateFormat#SHORT} for "h:mm a" in the US locale.
*
* @since JavaFX 8u40
*/
public DateTimeStringConverter(int dateStyle, int timeStyle) {
this(null, null, null, dateStyle, timeStyle);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using the
* specified locale and {@link DateFormat#DEFAULT} styles for date and time.
*
* @param locale the given locale.
*/
public DateTimeStringConverter(Locale locale) {
this(locale, null, null, DateFormat.DEFAULT, DateFormat.DEFAULT);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using specified
* locale and {@link DateFormat} styles for date and time.
*
* @param locale the given locale.
* @param dateStyle the given formatting style. For example,
* {@link DateFormat#SHORT} for "M/d/yy" in the US locale.
* @param timeStyle the given formatting style. For example,
* {@link DateFormat#SHORT} for "h:mm a" in the US locale.
*
* @since JavaFX 8u40
*/
public DateTimeStringConverter(Locale locale, int dateStyle, int timeStyle) {
this(locale, null, null, dateStyle, timeStyle);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using the
* specified pattern.
*
* @param pattern the pattern describing the date and time format.
*/
public DateTimeStringConverter(String pattern) {
this(null, pattern, null, DateFormat.DEFAULT, DateFormat.DEFAULT);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using the
* specified locale and pattern.
*
* @param locale the given locale.
* @param pattern the pattern describing the date and time format.
*/
public DateTimeStringConverter(Locale locale, String pattern) {
this(locale, pattern, null, DateFormat.DEFAULT, DateFormat.DEFAULT);
}
/**
* Create a {@link StringConverter} for {@link Date} values, using the
* specified {@link DateFormat} formatter.
*
* @param dateFormat the {@link DateFormat} to be used for formatting and
* parsing.
*/
public DateTimeStringConverter(DateFormat dateFormat) {
this(null, null, dateFormat, DateFormat.DEFAULT, DateFormat.DEFAULT);
}
DateTimeStringConverter(Locale locale, String pattern, DateFormat dateFormat,
int dateStyle, int timeStyle) {
this.locale = (locale != null) ? locale : Locale.getDefault(Locale.Category.FORMAT);
this.pattern = pattern;
this.dateFormat = dateFormat;
this.dateStyle = dateStyle;
this.timeStyle = timeStyle;
}
// ------------------------------------------------------- Converter Methods
/** {@inheritDoc} */
@Override public Date fromString(String value) {
try {
// If the specified value is null or zero-length, return null
if (value == null) {
return (null);
}
value = value.trim();
if (value.length() < 1) {
return (null);
}
// Create and configure the parser to be used
DateFormat parser = getDateFormat();
// Perform the requested parsing
return parser.parse(value);
} catch (ParseException ex) {
throw new RuntimeException(ex);
}
}
/** {@inheritDoc} */
@Override public String toString(Date value) {
// If the specified value is null, return a zero-length String
if (value == null) {
return "";
}
// Create and configure the formatter to be used
DateFormat formatter = getDateFormat();
// Perform the requested formatting
return formatter.format(value);
}
// --------------------------------------------------------- Private Methods
/**
* Return a DateFormat instance to use for formatting
* and parsing in this {@link StringConverter}.
*
* @return a {@code DateFormat} instance for formatting and parsing in this
* {@link StringConverter}
*/
protected DateFormat getDateFormat() {
DateFormat df = null;
if (dateFormat != null) {
return dateFormat;
} else if (pattern != null) {
df = new SimpleDateFormat(pattern, locale);
} else {
df = DateFormat.getDateTimeInstance(dateStyle, timeStyle, locale);
}
df.setLenient(false);
return df;
}
}