/*
* Copyright (C) 2003, 2004 Joe Walnes.
* Copyright (C) 2006, 2007, 2012, 2014 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 01. October 2004 by Joe Walnes
*/
package com.thoughtworks.xstream.converters.extended;
import java.sql.Timestamp;
import java.text.ParseException;
import java.util.TimeZone;
import com.thoughtworks.xstream.converters.ConversionException;
import com.thoughtworks.xstream.converters.basic.AbstractSingleValueConverter;
import com.thoughtworks.xstream.core.util.ThreadSafeSimpleDateFormat;
/**
* Converts a {@link Timestamp} to a string.
*
* @author Joe Walnes
* @author Jörg Schaible
*/
public class SqlTimestampConverter extends AbstractSingleValueConverter {
private final ThreadSafeSimpleDateFormat format = new ThreadSafeSimpleDateFormat("yyyy-MM-dd HH:mm:ss", TimeZone
.getTimeZone("UTC"), 0, 5, false);
@Override
public boolean canConvert(final Class<?> type) {
return type.equals(Timestamp.class);
}
@Override
public String toString(final Object obj) {
final Timestamp timestamp = (Timestamp)obj;
final StringBuilder buffer = new StringBuilder(format.format(timestamp)).append('.');
if (timestamp.getNanos() == 0) {
buffer.append('0');
} else {
final String nanos = String.valueOf(timestamp.getNanos() + 1000000000);
int last = 10;
while (last > 2 && nanos.charAt(last - 1) == '0') {
--last;
}
buffer.append(nanos.subSequence(1, last));
}
return buffer.toString();
}
@Override
public Object fromString(final String str) {
final int idx = str.lastIndexOf('.');
if (idx < 0 || str.length() - idx < 2 || str.length() - idx > 10) {
throw new ConversionException("Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]");
}
try {
final Timestamp timestamp = new Timestamp(format.parse(str.substring(0, idx)).getTime());
final StringBuilder buffer = new StringBuilder(str.substring(idx + 1));
while (buffer.length() != 9) {
buffer.append('0');
}
timestamp.setNanos(Integer.parseInt(buffer.toString()));
return timestamp;
} catch (final NumberFormatException e) {
throw new ConversionException("Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]", e);
} catch (final ParseException e) {
throw new ConversionException("Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]");
}
}
}