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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.compare;


import java.util.List;
import java.util.Set;

import javax.inject.Inject;

import org.atemsource.atem.api.BeanLocator;
import org.atemsource.atem.api.attribute.Attribute;
import org.atemsource.atem.api.attribute.CollectionAttribute;
import org.atemsource.atem.api.attribute.OrderableCollection;
import org.atemsource.atem.api.infrastructure.util.ReflectionUtils;
import org.atemsource.atem.api.type.EntityType;
import org.atemsource.atem.utility.common.EntityTypeOperationBuilder;
import org.atemsource.atem.utility.compare.builder.OrderableCollectionAttributeBuilder;


public class ComparisonBuilder extends
	EntityTypeOperationBuilder
{

	private List>> attributeFactories;

	@Inject
	private ComparisonBuilderFactory comparisonBuilderFactory;

	@Inject
	private BeanLocator beanLocator;
	
	public OrderableCollectionAttributeBuilder includeOrderableCollection(String attribute) {
		return (OrderableCollectionAttributeBuilder) include(attribute);
	}

	@Override
	protected Comparison createInternally()
	{
		Set operations = createOperations();
		Comparison comparison = beanLocator.getInstance(Comparison.class);
		comparison.setEntityType(getEntityType());
		comparison.setAttributeOperations(operations);
		return comparison;
	}

	@Override
	protected ComparisonAttributeBuilder createAttributeOperationBuilder(Attribute attribute)
	{
		for (ComparisonAttributeBuilderFactory> factory : attributeFactories)
		{
			Class[] actualTypeParameters =
				ReflectionUtils.getActualTypeParameters(factory.getClass(), ComparisonAttributeBuilderFactory.class);
			if (actualTypeParameters.length > 1 && actualTypeParameters[2].isAssignableFrom(attribute.getClass())
				&& factory.canCreate(attribute, null))
			{
				return factory.create(attribute, null);
			}
		}
		throw new IllegalStateException("cannot create attributeBuilder for attribute " + attribute);
	}

	@Override
	protected ComparisonBuilder createViewBuilder(EntityType entityType)
	{
		return comparisonBuilderFactory.create(entityType);
	}

	public List>> getAttributeFactories()
	{
		return attributeFactories;
	}

	public void setAttributeFactories(List>> attributeFactories)
	{
		this.attributeFactories = attributeFactories;
	}

	@Override
	protected void setEntityType(EntityType entityType)
	{
		super.setEntityType(entityType);
	}

}