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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
/*
* Copyright (C) 2003, 2004 Joe Walnes.
* Copyright (C) 2006, 2007, 2012, 2014, 2016, 2017, 2018 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.feilong.lib.xstream.converters.extended;
import java.sql.Timestamp;
import java.text.ParseException;
import java.util.TimeZone;
import com.feilong.lib.xstream.converters.ConversionException;
import com.feilong.lib.xstream.converters.basic.AbstractSingleValueConverter;
import com.feilong.lib.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;
/**
* Constructs a SqlTimestampConverter using UTC format.
*/
public SqlTimestampConverter(){
this(TimeZone.getTimeZone("UTC"));
}
/**
* Constructs a SqlTimestampConverter.
*
* XStream uses by default UTC as time zone. However, if the resulting XML is used as feed for a data base (like MS
* SQL) the server might expect the timestamp to be in local time and does the conversion to UTC on its own. In such
* a case you can register an own instance of the SqlTimestamp converter using e.g. {@link TimeZone#getDefault()}.
*
*
* @param timeZone
* the time zone used for the format
* @since 1.4.10
*/
public SqlTimestampConverter(final TimeZone timeZone){
format = new ThreadSafeSimpleDateFormat("yyyy-MM-dd HH:mm:ss", timeZone, 0, 5, false);
}
@Override
public boolean canConvert(Class type){
return type == Timestamp.class;
}
@Override
public String toString(final Object obj){
final Timestamp timestamp = (Timestamp) obj;
final StringBuffer buffer = new StringBuffer(format.format(timestamp));
if (timestamp.getNanos() != 0){
buffer.append('.');
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(idx < 0 ? str : str.substring(0, idx)).getTime());
if (idx > 0){
final StringBuffer buffer = new StringBuffer(str.substring(idx + 1));
while (buffer.length() != 9){
buffer.append('0');
}
timestamp.setNanos(Integer.parseInt(buffer.toString()));
}
return timestamp;
}catch (NumberFormatException e){
throw new ConversionException("Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]", e);
}catch (ParseException e){
throw new ConversionException("Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]", e);
}
}
}