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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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.apache.tuscany.sdo.helper;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import commonj.sdo.helper.DataHelper;
/**
* Data helper methods.
*/
public class DataHelperImpl implements DataHelper
{
/**
* @param dateString - Must comply to the pattern of yyyy-MM-dd'T'HH:mm:ss'.'SSS Z
* @return null if dataString couldn't be parsed
*/
public synchronized Date toDate(String dateString)
{
if (dateString == null)
{
return null;
}
DateFormat [] DATE_PATTERNS =
{
new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'.'SSS Z"),
new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'.'SSS"),
new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss"),
new SimpleDateFormat("yyyy-MM-dd'T'HH:mm"),
new SimpleDateFormat("yyyy-MM-dd")
};
for (int i = 0; i < DATE_PATTERNS.length; ++i)
{
try
{
return DATE_PATTERNS[i].parse(dateString);
}
catch (ParseException parseException)
{
}
}
return null;
}
public synchronized Calendar toCalendar(String dateString)
{
if (dateString == null)
{
return null;
}
Date date = toDate(dateString);
if (date == null)
{
return null;
}
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
return calendar;
}
public synchronized Calendar toCalendar(String dateString, Locale locale)
{
if (dateString == null || locale == null)
{
return null;
}
Date date = toDate(dateString);
if (date == null)
{
return null;
}
Calendar calendar = new GregorianCalendar(locale);
calendar.setTime(date);
return calendar;
}
public synchronized String toDateTime(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'.'SSS zz");
return f.format(date);
}
public synchronized String toDuration(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("'P'yyyy'Y' MM'M' dd'D' 'T' HH'H' mm'M' ss'S.'SSS");
return f.format(date);
}
public synchronized String toTime(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("HH:mm:ss'.'SSS zz");
return f.format(date);
}
public synchronized String toDay(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("---dd zz");
return f.format(date);
}
public synchronized String toMonth(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("--MM zz");
return f.format(date);
}
public synchronized String toMonthDay(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("--MM-dd zz");
return f.format(date);
}
public synchronized String toYear(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("yyyy zz");
return f.format(date);
}
public synchronized String toYearMonth(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM zz");
return f.format(date);
}
public synchronized String toYearMonthDay(Date date)
{
if (date == null)
{
return null;
}
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd zz");
return f.format(date);
}
public synchronized String toDateTime(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toDateTime(calendar.getTime());
}
public synchronized String toDuration(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toDuration(calendar.getTime());
}
public synchronized String toTime(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toTime(calendar.getTime());
}
public synchronized String toDay(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toDay(calendar.getTime());
}
public synchronized String toMonth(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toMonth(calendar.getTime());
}
public synchronized String toMonthDay(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toMonthDay(calendar.getTime());
}
public synchronized String toYear(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toYear(calendar.getTime());
}
public synchronized String toYearMonth(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toYearMonth(calendar.getTime());
}
public synchronized String toYearMonthDay(Calendar calendar)
{
if (calendar == null)
{
return null;
}
return toYearMonthDay(calendar.getTime());
}
}
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