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Java Object Document Mapper for MongoDB
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package org.mongodb.morphia.converters;
import org.mongodb.morphia.logging.Logger;
import org.mongodb.morphia.logging.MorphiaLoggerFactory;
import org.mongodb.morphia.mapping.MappedField;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
/**
* @author Uwe Schaefer, ([email protected])
* @author scotthernandez
*/
public class DateConverter extends TypeConverter implements SimpleValueConverter {
private static final Logger LOG = MorphiaLoggerFactory.get(DateConverter.class);
/**
* Creates the Converter.
*/
public DateConverter() {
this(Date.class);
}
protected DateConverter(final Class clazz) {
super(clazz);
}
@Override
public Object decode(final Class targetClass, final Object val, final MappedField optionalExtraInfo) {
if (val == null) {
return null;
}
if (val instanceof Date) {
return val;
}
if (val instanceof Number) {
return new Date(((Number) val).longValue());
}
if (val instanceof String) {
try {
return new SimpleDateFormat("EEE MMM dd kk:mm:ss z yyyy", Locale.US).parse((String) val);
} catch (ParseException e) {
LOG.error("Can't parse Date from: " + val);
}
}
throw new IllegalArgumentException("Can't convert to Date from " + val);
}
}