/*
* #%L
* ACS AEM Commons Bundle
* %%
* Copyright (C) 2013 Adobe
* %%
* 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.
* #L%
*/
package com.adobe.acs.commons.images;
import aQute.bnd.annotation.ConsumerType;
import com.day.image.Layer;
import org.apache.sling.api.resource.ValueMap;
@ConsumerType
public interface ImageTransformer {
/**
* OSGi Property used to identify the ImageTransformer.
*/
String PROP_TYPE = "type";
/**
* Transform the provided layer using the transformation parameters provided in properties.
*
* @param layer the image layer to transform
* @param properties transformation parameters
* @return the transformed layer; or if layer could not be transformed (invalid properties) the layer unmodified
*/
Layer transform(Layer layer, ValueMap properties);
}