DateTransformer.java

package flexjson.transformer;

import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import flexjson.JSONException;
import flexjson.ObjectBinder;
import flexjson.ObjectFactory;

/**
 * User: brandongoodin
 * Date: Dec 12, 2007
 * Time: 11:20:39 PM
 */
public class DateTransformer extends AbstractTransformer implements ObjectFactory
{

	SimpleDateFormat simpleDateFormatter;

	public DateTransformer(String dateFormat)
	{
		simpleDateFormatter= new SimpleDateFormat(dateFormat);
	}

	public void transform(Object value)
	{
		getContext().writeQuoted(simpleDateFormatter.format(value));
	}

	public Object instantiate(ObjectBinder context, Object value, Type targetType, Class targetClass)
	{
		try
		{
			return simpleDateFormatter.parse(value.toString());
		}
		catch (ParseException e)
		{
			throw new JSONException(String.format("Failed to parse %s with %s pattern.", value, simpleDateFormatter.toPattern()), e);
		}
	}
}