001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: https://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: https://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ui.dataview;
029
030import org.opencms.widgets.dataview.CmsDataViewColumn;
031import org.opencms.widgets.dataview.CmsDataViewColumn.Type;
032
033import com.vaadin.server.ExternalResource;
034import com.vaadin.ui.Component;
035import com.vaadin.ui.Image;
036
037/**
038 * Converts column values to the correct types.<p>
039 */
040public final class CmsColumnValueConverter {
041
042    /**
043     * Hidden default constructor.<p>
044     */
045    private CmsColumnValueConverter() {
046
047        // do nothing
048    }
049
050    /**
051     * Gets the actual value class which the given type enum represents.<p>
052     *
053     * @param type the type enum
054     * @return the actual value class to use
055     */
056    public static Class<?> getColumnClass(CmsDataViewColumn.Type type) {
057
058        if (type == Type.imageType) {
059            return Component.class;
060        } else {
061            return type.getValueClass();
062        }
063    }
064
065    /**
066     * Gets the actual column value for the given data value.<p>
067     *
068     * @param value the data value
069     * @param type the column type enum
070     *
071     * @return the actual column value to use
072     */
073    public static Object getColumnValue(Object value, CmsDataViewColumn.Type type) {
074
075        if (type == Type.imageType) {
076            Image image = new Image("", new ExternalResource((String)value));
077            image.addStyleName("o-table-image");
078            return image;
079        } else {
080            return value;
081        }
082    }
083
084}