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Atem utilities for cloning, comparing and transforming

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/*******************************************************************************
 * Stefan Meyer, 2012
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package org.atemsource.atem.utility.clone;


import org.atemsource.atem.api.type.PrimitiveType;
import org.atemsource.atem.utility.common.AttributeOperation;


public abstract class AttributeCloning extends AttributeOperation
{

	protected Object clone(Object value, CloningContext ctx)
	{
		Cloning cloning = getEntityOperation(getAttribute().getTargetType(value));
		Object clonedValue;
		if (cloning != null)
		{
			clonedValue = ctx.getCloneReference(value);
			if (clonedValue == null)
			{
				clonedValue = cloning.clone(value);
				ctx.addCloneReference(value, clonedValue);
			}
		}
		else if (getAttribute().getTargetType() instanceof PrimitiveType)
		{
			clonedValue = ((PrimitiveType