ArticlePage.java

package de.flower.rmt.ui.page.blog;

import de.flower.rmt.model.db.entity.BArticle;
import de.flower.rmt.service.IBlogManager;
import de.flower.rmt.ui.model.BArticleModel;
import de.flower.rmt.ui.page.Pages;
import de.flower.rmt.ui.page.base.AbstractCommonBasePage;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.request.http.flow.AbortWithHttpErrorCodeException;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.spring.injection.annot.SpringBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * displays a blog article and related comments.
 *
 * @author flowerrrr
 */
public class ArticlePage extends AbstractCommonBasePage {

    public final static String PARAM_ARTICLEID = "post";

    private final static Logger log = LoggerFactory.getLogger(ArticlePage.class);

    @SpringBean
    private IBlogManager blogManager;

    /**
     * Deep link support
     *
     * @param params
     */
    public ArticlePage(PageParameters params) {
        BArticle article;
        try {
            Long id = params.get(PARAM_ARTICLEID).toLong();
            article = blogManager.loadArticleById(id);
        } catch (Exception e) {
            log.warn("ArticlePage accessed with invalid parameter: " + e.toString());
            throw new AbortWithHttpErrorCodeException(404, "Invalid page parameter: " + e.getMessage());
        }
        // as associations are often needed use a fully initialized event object model.
        init(new BArticleModel(article));
    }

    public static PageParameters getPageParams(Long articleId) {
        checkNotNull(articleId);
        return new PageParameters().set(PARAM_ARTICLEID, articleId);
    }

    private void init(IModel<BArticle> model) {
        setDefaultModel(model);
        setHeadingModel(new PropertyModel<String>(model, "heading"), null);
        addMainPanel(new ArticlePanel(model));
        addSecondaryPanel(new BlogSecondaryPanel());

        add(new BlogPage.BlogMarkAllReadBehavior());
    }

    @Override
    public String getActiveTopBarItem() {
        return Pages.BLOG.name();
    }
}