/*
* Copyright 2004-2009 the original author or authors.
*
* 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.compass.core.converter.extended;
import java.text.ParseException;
import java.util.Locale;
import java.util.TimeZone;
import org.compass.core.converter.ConversionException;
import org.compass.core.converter.basic.AbstractFormatConverter;
import org.compass.core.converter.basic.DateMathParser;
import org.compass.core.converter.basic.format.Formatter;
import org.compass.core.converter.basic.format.FormatterFactory;
import org.compass.core.mapping.ResourcePropertyMapping;
import org.compass.core.marshall.MarshallingContext;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.ISODateTimeFormat;
/**
* A converter for Joda {@link DateTime}. The default format is the ISO format.
*
* @author kimchy
*/
public class DataTimeConverter extends AbstractFormatConverter {
public static final String DEFAULT_NOW_PREFIX = "now";
public static final String ISO = "iso";
private class DataTimeFormatterFactory implements FormatterFactory {
private String format;
private Locale locale;
public void configure(String format, Locale locale) {
this.format = format;
this.locale = locale;
}
public Formatter create() {
if (ISO.equalsIgnoreCase(format)) {
return new DateTimeFormatter(ISODateTimeFormat.dateTime());
}
org.joda.time.format.DateTimeFormatter formatter = DateTimeFormat.forPattern(format);
formatter = formatter.withLocale(locale);
return new DateTimeFormatter(formatter);
}
}
private class DateTimeFormatter implements Formatter {
private final org.joda.time.format.DateTimeFormatter formatter;
private DateTimeFormatter(org.joda.time.format.DateTimeFormatter formatter) {
this.formatter = formatter;
}
public String format(Object obj) {
return formatter.print((DateTime) obj);
}
public Object parse(String str) throws ParseException {
return formatter.parseDateTime(str);
}
public boolean isThreadSafe() {
return true;
}
}
protected FormatterFactory doCreateFormatterFactory() {
return new DataTimeFormatterFactory();
}
@Override
protected String doGetDefaultFormat() {
return ISO;
}
protected Object doFromString(String str, ResourcePropertyMapping resourcePropertyMapping, MarshallingContext context) throws ConversionException {
try {
if (str.toLowerCase().startsWith(DEFAULT_NOW_PREFIX)) {
// TODO have timezone pluggable
DateMathParser p = new DateMathParser(TimeZone.getDefault(), locale);
return p.parseMath(str.substring(DEFAULT_NOW_PREFIX.length()));
}
for (int i = 0; i < formatters.length; i++) {
try {
return formatters[i].parse(str);
} catch (Exception e) {
// do nothing, continue to the next one
}
}
throw new ConversionException("Failed to parse date [" + str + "]");
} catch (Exception e) {
throw new ConversionException("Failed to parse date [" + str + "]", e);
}
}
@Override
protected String doToString(Object o, ResourcePropertyMapping resourcePropertyMapping, MarshallingContext context) {
return formatters[0].format(o);
}
}