/*************************************************************************
*
* ADOBE CONFIDENTIAL
* __________________
*
* 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.
**************************************************************************/
package flex.messaging.io.amf.translator.decoder;
import java.lang.reflect.Array;
import java.util.Collection;
import flex.messaging.io.TypeMarshallingContext;
/**
* @exclude
*/
public class ReferenceAwareArrayDecoder extends ArrayDecoder
{
public Object decodeObject(Object shell, Object encodedObject, Class desiredClass)
{
if (shell == null || encodedObject == null)
return null;
Class arrayElementClass = desiredClass.getComponentType();
if (encodedObject instanceof Collection)
{
return decodeArray(shell, (Collection)encodedObject, arrayElementClass);
}
else if (encodedObject.getClass().isArray())
{
return decodeArray(shell, encodedObject, arrayElementClass);
}
else if (encodedObject instanceof String && Character.class.equals(arrayElementClass))
{
return decodeArray(shell, (String)encodedObject, arrayElementClass);
}
else
{
return shell;
}
}
protected Object decodeArray(Object shellArray, Collection collection, Class arrayElementClass)
{
Object[] array = collection.toArray();
TypeMarshallingContext.getTypeMarshallingContext().getKnownObjects().put(array, shellArray);
return decodeArray(shellArray, array, arrayElementClass);
}
protected Object decodeArray(Object shellArray, Object array, Class arrayElementClass)
{
Object encodedValue = null;
Object decodedValue = null;
TypeMarshallingContext context = TypeMarshallingContext.getTypeMarshallingContext();
ActionScriptDecoder decoder = null;
int n = 0;
int len = Array.getLength(array);
for (int i = 0; i < len; i++)
{
encodedValue = Array.get(array, i);
if (encodedValue == null)
{
Array.set(shellArray, n, null);
}
else
{
//Check whether we need to restore a client
//side reference to a known object
Object ref = null;
if (canUseByReference(encodedValue))
ref = context.getKnownObjects().get(encodedValue);
if (ref == null)
{
decoder = DecoderFactory.getReferenceAwareDecoder(encodedValue, arrayElementClass);
decodedValue = decoder.decodeObject(encodedValue, arrayElementClass);
if (canUseByReference(decodedValue))
{
context.getKnownObjects().put(encodedValue, decodedValue);
}
}
else
{
decodedValue = ref;
}
try
{
Array.set(shellArray, n, decodedValue);
}
catch (IllegalArgumentException ex)
{
Array.set(shellArray, n, null);
}
}
n++;
}
return shellArray;
}
}