/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.gce.imagemosaic;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import javax.xml.datatype.XMLGregorianCalendar;
import org.geotools.factory.Hints;
import org.geotools.util.Converter;
import org.geotools.util.ConverterFactory;
/**
* Converter factory which created converting between temporal types and {@link String}
* <p>
* Supported save conversions:
* <ul>
* <li>{@link java.util.Date} to {@link String}
* <li>{@link java.sql.Time} to {@link to {@link String}}
* <li>{@link java.util.Date} to {@link to {@link String}}
* <li>{@link java.util.Calendar} to {@link to {@link String}}
* <li>{@link XMLGregorianCalendar} to {@link to {@link String}}
* </ul>
* </p>
* <p>
* The hint {@link ConverterFactory#SAFE_CONVERSION} is used to control which conversions will be
* applied.
* </p>
*
* @author Simone Giannecchini, GeoSolutions
* @since 9.0
*
* @source $URL$
*/
class TemporalConverterFactoryHack implements ConverterFactory {
public Converter createConverter(Class source, Class target, Hints hints) {
boolean isSafeOnly = false;
if (hints != null){
Object safe = hints.get(ConverterFactory.SAFE_CONVERSION);
if (safe instanceof Boolean && ((Boolean)safe).booleanValue()){
isSafeOnly = true;
}
}
if (Date.class.isAssignableFrom(source)) {
// target is string
if (String.class.equals(target)) {
final SimpleDateFormat df= new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
df.setTimeZone(TimeZone.getTimeZone("UTC")); // we DO work only with UTC times
return new Converter() {
public Object convert(Object source, Class target) throws Exception {
if(source instanceof Date){
return df.format((Date) source);
}
return null;
}
};
}
}
// this should handle java.util.Calendar to
// String
if (Calendar.class.isAssignableFrom(source)) {
// target is string
if (String.class.equals(target)) {
final SimpleDateFormat df= new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
df.setTimeZone(TimeZone.getTimeZone("UTC")); // we DO work only with UTC times
return new Converter() {
public Object convert(Object source, Class target) throws Exception {
if(source instanceof Calendar){
return df.format(((Calendar) source).getTime());
}
return null;
}
};
}
}
if (XMLGregorianCalendar.class.isAssignableFrom(source)) {
// target is string
if (String.class.equals(target)) {
final SimpleDateFormat df= new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
df.setTimeZone(TimeZone.getTimeZone("UTC")); // we DO work only with UTC times
return new Converter() {
public Object convert(Object source, Class target) throws Exception {
if(source instanceof XMLGregorianCalendar){
return df.format(((XMLGregorianCalendar) source).toGregorianCalendar(TimeZone.getTimeZone("GMT"),Locale.getDefault(),null).getTime());
}
return null;
}
};
}
}
return null;
}
}