name.neilbartlett.eclipse.bundlemonitor.views.config.ConfigLabelProvider.java Source code

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Here is the source code for name.neilbartlett.eclipse.bundlemonitor.views.config.ConfigLabelProvider.java

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/*
 * Copyright (c) 2008 Neil Bartlett
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Neil Bartlett - initial implementation
 */
package name.neilbartlett.eclipse.bundlemonitor.views.config;

import name.neilbartlett.eclipse.bundlemonitor.views.shared.PropertyEntry;

import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.osgi.service.cm.Configuration;
import org.osgi.util.tracker.ServiceTracker;

public class ConfigLabelProvider extends LabelProvider implements ITableLabelProvider {

    private static final String LABEL_NULL = "<null>";
    private final ServiceTracker cmTracker;

    public ConfigLabelProvider(ServiceTracker cmTracker) {
        this.cmTracker = cmTracker;
    }

    public Image getColumnImage(Object element, int columnIndex) {
        return null;
    }

    public String getColumnText(Object element, int columnIndex) {
        String text = null;

        if (element instanceof ConfigWrapper) {
            ConfigWrapper wrapper = (ConfigWrapper) element;
            Configuration config = wrapper.getConfiguration(cmTracker);
            if (config != null) {
                if (columnIndex == 0) {
                    String pid = config.getPid();

                    StringBuffer buffer = new StringBuffer();
                    buffer.append(pid);
                    text = buffer.toString();
                } else {
                    text = config.getBundleLocation();
                }
            }
        } else if (element instanceof PropertyEntry) {
            PropertyEntry prop = (PropertyEntry) element;

            if (columnIndex == 0) {
                text = prop.getKey();
            } else if (columnIndex == 1) {
                Object value = prop.getValue();
                if (value == null) {
                    text = LABEL_NULL;
                } else if (value instanceof Object[]) {
                    text = arrayToString((Object[]) value);
                } else {
                    text = value.toString();
                }
            }
        }

        return text;
    }

    protected static String arrayToString(Object[] array) {
        StringBuffer buffer = new StringBuffer();

        for (int i = 0; i < array.length; i++) {
            if (i > 0)
                buffer.append(',');
            buffer.append(array[i] == null ? LABEL_NULL : array[i].toString());
        }

        return buffer.toString();
    }

}