org.atemsource.atem.utility.transform.impl.transformation.CollectionAssociationAttributeTransformation Maven / Gradle / Ivy

/*******************************************************************************
 * 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.transform.impl.transformation;

import java.util.Collection;
import org.atemsource.atem.api.attribute.CollectionAttribute;
import org.atemsource.atem.utility.path.AttributePath;
import org.atemsource.atem.utility.transform.api.TransformationContext;
import org.atemsource.atem.utility.transform.api.UniTransformation;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;


@Component
@Scope("prototype")
public class CollectionAssociationAttributeTransformation extends OneToOneAttributeTransformation
{

	private boolean convertEmptyToNull;

	private boolean convertNullToEmpty;

	public boolean isConvertEmptyToNull()
	{
		return convertEmptyToNull;
	}

	public boolean isConvertNullToEmpty()
	{
		return convertNullToEmpty;
	}

	public void setConvertEmptyToNull(boolean convertEmptyToNull)
	{
		this.convertEmptyToNull = convertEmptyToNull;
	}

	public void setConvertNullToEmpty(boolean convertNullToEmpty)
	{
		this.convertNullToEmpty = convertNullToEmpty;
	}

	@Override
	protected void transformInternally(Object a, Object b, AttributePath attributePathA, AttributePath attributePathB,
		TransformationContext ctx, UniTransformation converter)
	{
		CollectionAttribute attributeA =
			(CollectionAttribute) attributePathA.getAttribute(a);
		if (attributeA == null)
		{
			// TODO above seems to be null sometimes
			attributeA = (CollectionAttribute) attributePathA.getAttribute();
		}
		CollectionAttribute attributeB =
			(CollectionAttribute) attributePathB.getAttribute();
		Object baseValueA = attributePathA.getBaseValue(a);

		if (baseValueA == null)
		{
			return;
		}

		Collection