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 * Copyright 2002 - 2007 Adobe Systems Incorporated All Rights Reserved.
 * 
 * NOTICE: All information contained herein is, and remains the property of Adobe Systems Incorporated and its suppliers, if any. The intellectual and technical concepts contained herein are
 * proprietary to Adobe Systems Incorporated and its suppliers and may be covered by U.S. and Foreign Patents, patents in process, and are protected by trade secret or copyright law. Dissemination of
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package flex.messaging.io.amf.translator.decoder;

import java.util.Calendar;
import java.util.Date;

/**
 * Converts instances of java.util.Date, java.util.Calendar, and java.lang.Number to instances of java.util.Calendar. If the incoming object was not a Calendar, we create a new Calendar instance using
 * the default timezone and locale.
 * 
 * If the incoming type was an AMF 3 Date we remember the translation to Calendar in our list of known objects as Dates are considered complex objects and can be sent by reference. We want to retain
 * pointers to Date instances in our representation of an ActionScript object graph.
 * 
 * @author Peter Farland
 * 
 * @exclude
 */
public class CalendarDecoder extends ActionScriptDecoder
{
    @Override
    public Object decodeObject(Object shell, Object encodedObject, Class desiredClass)
    {
        Object result = null;

        if (encodedObject instanceof Date)
        {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime((Date) encodedObject);
            result = calendar;
        }
        else if (encodedObject instanceof Calendar)
        {
            result = encodedObject;
        }
        else if (encodedObject instanceof Number)
        {
            Calendar calendar = Calendar.getInstance();
            Number number = (Number) encodedObject;
            calendar.setTimeInMillis(number.longValue());
            result = calendar;
        }
        else
        {
            DecoderFactory.invalidType(encodedObject, desiredClass);
        }

        return result;
    }
}