com.centurylink.mdw.plugin.designer.views.ListViewLabelProvider.java Source code

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Here is the source code for com.centurylink.mdw.plugin.designer.views.ListViewLabelProvider.java

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/*
 * Copyright (C) 2017 CenturyLink, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.centurylink.mdw.plugin.designer.views;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtilsBean;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;

import com.centurylink.mdw.plugin.MdwPlugin;
import com.centurylink.mdw.plugin.PluginMessages;
import com.centurylink.mdw.plugin.designer.properties.editor.ColumnSpec;
import com.centurylink.mdw.plugin.designer.properties.editor.WorkflowAssetEditor;

public class ListViewLabelProvider extends LabelProvider implements ITableLabelProvider {
    public static final String TYPE_CHECKBOX = "BOOLEAN";
    public static final String TYPE_COMBO = "DROPDOWN";
    public static final String TYPE_ASSET = "ASSET";

    public List<ColumnSpec> columnSpecs;
    private PropertyUtilsBean propUtilsBean = new PropertyUtilsBean();
    private Map<ImageDescriptor, Image> imageCache = new HashMap<ImageDescriptor, Image>();

    public ListViewLabelProvider(List<ColumnSpec> columnSpecs) {
        this.columnSpecs = columnSpecs;
    }

    public String getColumnText(Object element, int columnIndex) {
        ColumnSpec colspec = columnSpecs.get(columnIndex);
        if (colspec.type.equals(TYPE_CHECKBOX)) {
            return null;
        } else if (colspec.type.equals(TYPE_COMBO)) {
            return null; // TODO
        } else if (colspec.type.equals(WorkflowAssetEditor.TYPE_ASSET)) {
            String stringVal = (String) getValue(element, columnIndex);
            if (stringVal != null && stringVal.indexOf('/') > 0) {
                return stringVal.substring(stringVal.indexOf('/') + 1);
            } else {
                return stringVal;
            }
        } else {
            Object val = getValue(element, columnIndex);
            if (val instanceof Date && colspec.dateFormat != null)
                return colspec.dateFormat.format((Date) val);

            return val == null ? "" : String.valueOf(val);
        }
    }

    public Image getColumnImage(Object element, int columnIndex) {
        ColumnSpec colspec = columnSpecs.get(columnIndex);
        if (colspec.type.equals(TYPE_CHECKBOX)) {
            ImageDescriptor descriptor = null;
            Boolean value = (Boolean) getValue(element, columnIndex);
            if (value.booleanValue()) {
                descriptor = MdwPlugin.getImageDescriptor("icons/checked.gif");
            } else {
                descriptor = MdwPlugin.getImageDescriptor("icons/unchecked.gif");
            }
            Image image = (Image) imageCache.get(descriptor);
            if (image == null) {
                image = descriptor.createImage();
                imageCache.put(descriptor, image);
            }
            return image;
        } else {
            return null;
        }
    }

    private Object getValue(Object element, int columnIndex) {
        if (element == null)
            return null;

        try {
            String propName = columnSpecs.get(columnIndex).property;
            return propUtilsBean.getProperty(element, propName);
        } catch (Exception ex) {
            PluginMessages.log(ex);
            return null;
        }
    }

}