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/*******************************************************************************
* Copyright (c) quickfixengine.org All rights reserved.
*
* This file is part of the QuickFIX FIX Engine
*
* This file may be distributed under the terms of the quickfixengine.org
* license as defined by quickfixengine.org and appearing in the file
* LICENSE included in the packaging of this file.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* See http://www.quickfixengine.org/LICENSE for licensing information.
*
* Contact [email protected] if any conditions of this licensing
* are not clear to you.
******************************************************************************/
package quickfix.field.converter;
import quickfix.FieldConvertError;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
/**
* Convert between a date and a String
*/
public class UtcDateOnlyConverter extends AbstractDateTimeConverter {
// SimpleDateFormats are not thread safe. A thread local is being
// used to maintain high concurrency among multiple session threads
private static final ThreadLocal utcDateConverter = new ThreadLocal<>();
private final DateFormat dateFormat = createDateFormat("yyyyMMdd");
/**
* Convert a date to a String ("YYYYMMDD")
*
* @param d the date to convert
* @return the formatted date
*/
public static String convert(Date d) {
return getFormatter().format(d);
}
private static DateFormat getFormatter() {
UtcDateOnlyConverter converter = utcDateConverter.get();
if (converter == null) {
converter = new UtcDateOnlyConverter();
utcDateConverter.set(converter);
}
return converter.dateFormat;
}
/**
* Convert between a String and a date
*
* @param value the String to convert
* @return the parsed Date
* @throws FieldConvertError raised for an invalid date string.
*/
public static Date convert(String value) throws FieldConvertError {
Date d = null;
String type = "date";
assertLength(value, 8, type);
assertDigitSequence(value, 0, 8, type);
try {
d = getFormatter().parse(value);
} catch (ParseException e) {
throwFieldConvertError(value, type);
}
return d;
}
}