ImageViewImpl.java

package com.biomerieux.adobe.core.models.impl;

import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.models.annotations.Model;
import org.apache.sling.models.annotations.DefaultInjectionStrategy;
import org.apache.sling.models.annotations.injectorspecific.ValueMapValue;
import org.apache.commons.lang3.StringUtils;
import org.apache.sling.models.factory.ModelFactory;
import org.apache.sling.models.annotations.injectorspecific.OSGiService;
import org.apache.sling.models.annotations.injectorspecific.Self;
import javax.annotation.PostConstruct;
import com.biomerieux.adobe.core.models.ImageView;
import com.adobe.cq.wcm.core.components.models.Image;


@Model(
        adaptables = {SlingHttpServletRequest.class},
        adapters = {ImageView.class},
        resourceType = {ImageViewImpl.RESOURCE_TYPE},
        defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL
)
public class ImageViewImpl implements ImageView {
    protected static final String RESOURCE_TYPE = "onebmx/components/content/imageview";

    @OSGiService
    private ModelFactory modelFactory;

    @Self
    private SlingHttpServletRequest request;

    @ValueMapValue
    private String title;

    @ValueMapValue
    private String url;

    private Image image;

    @PostConstruct
    private void init() {
        image = modelFactory.getModelFromWrappedRequest(request,
                request.getResource(),
                Image.class);
    }

    @Override
    public String getTitle() {
        return title;
    }

    @Override
    public String getUrl() {
        return url;
    }

    /**
     * @return the Image Sling Model of this resource, or null if the resource cannot create a valid Image Sling Model.
     */
    private Image getImage() {
        return image;
    }

    @Override
    public boolean isEmpty() {
        final Image componentImage = getImage();

        if (StringUtils.isBlank(title)) {
            // Name is missing, but required
            return true;
        } else if (StringUtils.isBlank(url)) {
            // At least one occupation is required
            return true;
        } else if (componentImage == null || StringUtils.isBlank(componentImage.getSrc())) {
            // A valid image is required
            return true;
        } else {
            // Everything is populated, so this component is not considered empty
            return false;
        }
    }
}