eu.esdihumboldt.hale.ui.views.report.ReportListLabelProvider.java Source code

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Here is the source code for eu.esdihumboldt.hale.ui.views.report.ReportListLabelProvider.java

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/*
 * Copyright (c) 2012 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:
 *     HUMBOLDT EU Integrated Project #030962
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.views.report;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import eu.esdihumboldt.hale.common.core.report.Report;
import eu.esdihumboldt.hale.common.core.report.ReportSession;

/**
 * LabelProvider for {@link ReportList}.
 * 
 * @author Andreas Burchert
 * @partner 01 / Fraunhofer Institute for Computer Graphics Research
 */
public class ReportListLabelProvider extends LabelProvider {

    private Map<ImageDescriptor, Image> imageCache = new HashMap<ImageDescriptor, Image>();
    private SimpleDateFormat df = new SimpleDateFormat("HH:mm yyyy-MM-dd");

    /**
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
     */
    @Override
    public void dispose() {
        for (Image i : imageCache.values())
            i.dispose();

        imageCache.clear();
    }

    /**
     * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {
        if (element instanceof ReportSession) {
            String img = "icons/compressed_folder_obj.gif";

            return getImage(img);
        } else if (element instanceof Report<?>) {
            // get the right image
            Report<?> report = (Report<?>) element;

            String img = "icons/signed_yes.gif";
            if (!report.isSuccess()) {
                img = "icons/error.gif";
            } else if (report.getWarnings().size() > 0 && report.getErrors().size() > 0) {
                img = "icons/errorwarning_tab.gif";
            } else if (report.getErrors().size() > 0) {
                img = "icons/error_log.gif";
            } else if (report.getWarnings().size() > 0) {
                img = "icons/warning.gif";
            }

            return getImage(img);
        }
        return null;
    }

    /**
     * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {
        if (element instanceof Report<?>) {
            return ((Report<?>) element).getTaskName();
        } else if (element instanceof ReportSession) {
            return df.format(new Date(((ReportSession) element).getId()));
        }

        return "Unhandled type";
    }

    /**
     * Get an Image from cache or resource.
     * 
     * @param img name of file
     * 
     * @return the Image
     */
    protected Image getImage(String img) {
        ImageDescriptor descriptor = null;

        descriptor = AbstractUIPlugin.imageDescriptorFromPlugin("eu.esdihumboldt.hale.ui.views.report", img);
        if (descriptor == null) {
            return null;
        }

        Image image = imageCache.get(descriptor);
        if (image == null) {
            image = descriptor.createImage();
            imageCache.put(descriptor, image);
        }
        return image;
    }
}