/*
* Copyright 2002-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.format.datetime;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.springframework.format.Formatter;
/**
* A formatter for {@link java.util.Date} types.
* Allows the configuration of an explicit date pattern and locale.
*
* @author Keith Donald
* @author Juergen Hoeller
* @since 3.0
* @see SimpleDateFormat
*/
public class DateFormatter implements Formatter<Date> {
private String pattern;
private int style = DateFormat.DEFAULT;
private TimeZone timeZone;
private boolean lenient = false;
/**
* Create a new default DateFormatter.
*/
public DateFormatter() {
}
/**
* Create a new DateFormatter for the given date pattern.
*/
public DateFormatter(String pattern) {
this.pattern = pattern;
}
/**
* Set the pattern to use to format date values.
* <p>If not specified, DateFormat's default style will be used.
*/
public void setPattern(String pattern) {
this.pattern = pattern;
}
/**
* Set the style to use to format date values.
* <p>If not specified, DateFormat's default style will be used.
* @see DateFormat#DEFAULT
* @see DateFormat#SHORT
* @see DateFormat#MEDIUM
* @see DateFormat#LONG
* @see DateFormat#FULL
*/
public void setStyle(int style) {
this.style = style;
}
/**
* Set the TimeZone to normalize the date values into, if any.
*/
public void setTimeZone(TimeZone timeZone) {
this.timeZone = timeZone;
}
/**
* Specify whether or not parsing is to be lenient. Default is false.
* <p>With lenient parsing, the parser may allow inputs that do not precisely match the format.
* With strict parsing, inputs must match the format exactly.
*/
public void setLenient(boolean lenient) {
this.lenient = lenient;
}
public String print(Date date, Locale locale) {
return getDateFormat(locale).format(date);
}
public Date parse(String text, Locale locale) throws ParseException {
return getDateFormat(locale).parse(text);
}
protected DateFormat getDateFormat(Locale locale) {
DateFormat dateFormat;
if (this.pattern != null) {
dateFormat = new SimpleDateFormat(this.pattern, locale);
}
else {
dateFormat = DateFormat.getDateInstance(this.style, locale);
}
if (this.timeZone != null) {
dateFormat.setTimeZone(this.timeZone);
}
dateFormat.setLenient(this.lenient);
return dateFormat;
}
}
|