io.wcm.testing.mock.aem.MockLayerAdapterFactory Maven / Gradle / Ivy

Go to download
/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2014 wcm.io
 * %%
 * 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 io.wcm.testing.mock.aem;

import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.adapter.Adaptable;
import org.apache.sling.api.adapter.AdapterFactory;
import org.osgi.annotation.versioning.ProviderType;

import com.day.image.Layer;

/**
 * Tries to adapt to an InputStream to get a Layer instance for an image binary.
 */
@Component
@Service(AdapterFactory.class)
@ProviderType
public class MockLayerAdapterFactory implements AdapterFactory {

  @Property(name = AdapterFactory.ADAPTABLE_CLASSES)
  private static final String[] ADAPTABLES = {
    Adaptable.class.getName()
  };

  @Property(name = AdapterFactory.ADAPTER_CLASSES)
  private static final String[] ADAPTERS = {
    Layer.class.getName()
  };

  @SuppressWarnings("unchecked")
  @Override
  public  AdapterType getAdapter(Object object, Class type) {
    if (type == Layer.class && object instanceof Adaptable) {
      InputStream is = ((Adaptable)object).adaptTo(InputStream.class);
      if (is != null) {
        try {
          return (AdapterType)new Layer(is);
        }
        catch (IOException ex) {
          // ignore
        }
        finally {
          IOUtils.closeQuietly(is);
        }
      }
    }
    return null;
  }

}