eu.esdihumboldt.hale.server.templates.war.components.ResourcesPanel.java Source code

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Here is the source code for eu.esdihumboldt.hale.server.templates.war.components.ResourcesPanel.java

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/*
 * Copyright (c) 2013 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.server.templates.war.components;

import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.ExternalLink;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.spring.injection.annot.SpringBean;

import eu.esdihumboldt.hale.common.core.io.IOAction;
import eu.esdihumboldt.hale.common.core.io.extension.IOActionExtension;
import eu.esdihumboldt.hale.common.core.io.project.model.Resource;
import eu.esdihumboldt.hale.server.templates.TemplateProject;
import eu.esdihumboldt.hale.server.templates.TemplateScavenger;
import eu.esdihumboldt.hale.server.templates.war.TemplateLocations;

/**
 * Panel listing a templates' resources.
 * 
 * @author Simon Templer
 */
public class ResourcesPanel extends Panel {

    private static final long serialVersionUID = -2736270787771363436L;

    @SpringBean
    private TemplateScavenger templates;

    /**
     * Constructor.
     * 
     * @param id the component ID
     * @param templateId the template identifier
     */
    public ResourcesPanel(String id, final String templateId) {
        super(id);

        @SuppressWarnings("serial")
        IModel<? extends List<? extends IOAction>> actionResources = new LoadableDetachableModel<List<? extends IOAction>>() {

            @Override
            protected List<? extends IOAction> load() {
                TemplateProject ref = templates.getReference(templateId);
                List<IOAction> result = new ArrayList<>();
                if (ref != null) {
                    for (String id : ref.getResources().keySet()) {
                        IOAction action = IOActionExtension.getInstance().get(id);
                        if (action != null) {
                            result.add(action);
                        }
                    }
                }
                return result;
            }
        };

        @SuppressWarnings("serial")
        ListView<IOAction> actions = new ListView<IOAction>("resources", actionResources) {

            @Override
            protected void populateItem(ListItem<IOAction> item) {
                IOAction action = item.getModelObject();
                final String actionId = action.getId();

                // resource category
                String category = action.getResourceCategoryName();
                if (category == null || category.isEmpty()) {
                    category = action.getName();
                }
                if (category == null || category.isEmpty()) {
                    category = action.getId();
                }
                item.add(new Label("category", category));

                @SuppressWarnings("serial")
                IModel<? extends List<? extends Resource>> resourcesModel = new LoadableDetachableModel<List<? extends Resource>>() {

                    @Override
                    protected List<? extends Resource> load() {
                        TemplateProject ref = templates.getReference(templateId);
                        List<Resource> result = new ArrayList<>();
                        if (ref != null) {
                            result.addAll(ref.getResources().get(actionId));
                        }
                        return result;
                    }
                };

                // resources
                @SuppressWarnings("serial")
                ListView<Resource> resources = new ListView<Resource>("resource", resourcesModel) {

                    @Override
                    protected void populateItem(ListItem<Resource> item) {
                        Resource res = item.getModelObject();

                        String href = null;
                        String name = "Unknown resource";
                        if (res.getSource() != null) {
                            if ("file".equals(res.getSource().getScheme())) {
                                Path resPath = Paths.get(res.getSource()).normalize();
                                Path basePath = new File(templates.getHuntingGrounds(), templateId).toPath();

                                if (resPath.startsWith(basePath)) {
                                    String templateRelativePath = basePath.relativize(resPath).toString();
                                    name = resPath.getFileName().toString();
                                    href = TemplateLocations.getTemplateFileUrl(templates, templateId,
                                            templateRelativePath);
                                } else {
                                    // invalid file to reference
                                    name = resPath.toString();
                                }
                            } else if ("resource".equals(res.getSource().getScheme())) {
                                name = res.getSource().toASCIIString();
                            } else {
                                href = res.getSource().toASCIIString();
                                name = href;
                            }
                        }

                        WebMarkupContainer link;
                        if (href != null) {
                            link = new ExternalLink("link", href);
                        } else {
                            link = new WebMarkupContainer("link");
                        }
                        item.add(link);

                        link.add(new Label("name", name));
                    }
                };
                item.add(resources);
            }
        };
        add(actions);

        // mapping
        TemplateProject ref = templates.getReference(templateId);

        WebMarkupContainer mapping = new WebMarkupContainer("mapping");
        mapping.setVisible(ref.getDefinedRelations() > 0);

        String text = ref.getDefinedRelations()
                + ((ref.getDefinedRelations() == 1) ? (" pre-defined relation") : (" pre-defined relations"));
        mapping.add(new Label("text", text));

        add(mapping);
    }
}