DateDecoder.java

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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
 * this information or reproduction of this material is strictly forbidden unless prior written permission is obtained from Adobe Systems Incorporated.
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package flex.messaging.io.amf.translator.decoder;

import java.util.Calendar;

/**
 * Converts java.util.Date, java.sql.Date, java.util.Calendar or java.lang.Number (via longValue) instances to a java.util.Date, taking into consideration the SQL specific java.sql.Date type which is
 * required by Hibernate users.
 * 
 * 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 DateDecoder extends ActionScriptDecoder
{
    @Override
    public Object decodeObject(Object shell, Object encodedObject, Class desiredClass)
    {
        java.util.Date result = null;

        if (java.sql.Date.class.isAssignableFrom(desiredClass))
        {
            if (encodedObject instanceof java.util.Date)
            {
                java.util.Date date = (java.util.Date) encodedObject;
                result = new java.sql.Date(date.getTime());
            }
            else if (encodedObject instanceof Calendar)
            {
                Calendar calendar = (Calendar) encodedObject;
                result = new java.sql.Date(calendar.getTimeInMillis());
            }
            else if (encodedObject instanceof Number)
            {
                Number number = (Number) encodedObject;
                result = new java.sql.Date(number.longValue());
            }
        }
        else if (java.sql.Timestamp.class.isAssignableFrom(desiredClass))
        {
            if (encodedObject instanceof java.util.Date)
            {
                java.util.Date date = (java.util.Date) encodedObject;
                result = new java.sql.Timestamp(date.getTime());
            }
            else if (encodedObject instanceof Calendar)
            {
                Calendar calendar = (Calendar) encodedObject;
                result = new java.sql.Timestamp(calendar.getTimeInMillis());
            }
            else if (encodedObject instanceof Number)
            {
                Number number = (Number) encodedObject;
                result = new java.sql.Timestamp(number.longValue());
            }
        }
        else if (java.sql.Time.class.isAssignableFrom(desiredClass))
        {
            if (encodedObject instanceof java.util.Date)
            {
                java.util.Date date = (java.util.Date) encodedObject;
                result = new java.sql.Time(date.getTime());
            }
            else if (encodedObject instanceof Calendar)
            {
                Calendar calendar = (Calendar) encodedObject;
                result = new java.sql.Time(calendar.getTimeInMillis());
            }
            else if (encodedObject instanceof Number)
            {
                Number number = (Number) encodedObject;
                result = new java.sql.Time(number.longValue());
            }
        }
        else if (java.util.Date.class.isAssignableFrom(desiredClass))
        {
            if (encodedObject instanceof java.util.Date)
            {
                result = (java.util.Date) encodedObject;
            }
            else if (encodedObject instanceof Calendar)
            {
                Calendar calendar = (Calendar) encodedObject;
                result = calendar.getTime();
            }
            else if (encodedObject instanceof Number)
            {
                Number number = (Number) encodedObject;
                result = new java.util.Date(number.longValue());
            }
        }

        if (result == null)
        {
            DecoderFactory.invalidType(encodedObject, desiredClass);
        }

        return result;
    }
}