EDIT

/*******************************************************************************

 * Copyright (c) 2000, 2007 IBM Corporation and others.

 * 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:

 *     IBM Corporation - initial API and implementation

 *******************************************************************************/

package org.eclipse.pde.internal.runtime.logview;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.jface.viewers.ITableLabelProvider;

import org.eclipse.jface.viewers.LabelProvider;

import org.eclipse.pde.internal.runtime.PDERuntimeMessages;

import org.eclipse.pde.internal.runtime.PDERuntimePluginImages;

import org.eclipse.swt.graphics.Image;

public class LogViewLabelProvider

	extends LabelProvider

	implements ITableLabelProvider {

	private static int MAX_LABEL_LENGTH = 200;

	private Image infoImage;

	private Image okImage;

	private Image errorImage;

	private Image warningImage;

	private Image errorWithStackImage;

	ArrayList consumers = new ArrayList();

	public LogViewLabelProvider() {

		errorImage = PDERuntimePluginImages.DESC_ERROR_ST_OBJ.createImage();

		warningImage = PDERuntimePluginImages.DESC_WARNING_ST_OBJ.createImage();

		infoImage = PDERuntimePluginImages.DESC_INFO_ST_OBJ.createImage();

		okImage = PDERuntimePluginImages.DESC_OK_ST_OBJ.createImage();

		errorWithStackImage = PDERuntimePluginImages.DESC_ERROR_STACK_OBJ.createImage();

	}

	public void dispose() {

		if (consumers.size() == 0){

//			errorImage.dispose();

//			infoImage.dispose();

//			okImage.dispose();

//			warningImage.dispose();

//			errorWithStackImage.dispose();

			super.dispose();

		}

	}

	public Image getColumnImage(Object element, int columnIndex) {

		LogEntry entry = (LogEntry) element;

		if (columnIndex == 0) {

			switch (entry.getSeverity()) {

				case IStatus.INFO :

					return infoImage;

				case IStatus.OK :

					return okImage;

				case IStatus.WARNING :

					return warningImage;

				default :

					return (entry.getStack() == null ? errorImage : errorWithStackImage);

			}

		}

		return null;

	}

	public String getColumnText(Object element, int columnIndex) {

		LogEntry entry = (LogEntry) element;

		switch (columnIndex) {

		case 0:

			if (entry.getMessage() != null) {

				String message = entry.getMessage();

				if (message.length() > MAX_LABEL_LENGTH) {

					String warning = PDERuntimeMessages.get().LogViewLabelProvider_truncatedMessage;

					StringBuffer sb = new StringBuffer(message.substring(0, MAX_LABEL_LENGTH - warning.length()));

					sb.append(warning);

					return sb.toString();

				}

				return entry.getMessage();

			}

		case 1:

			if (entry.getPluginId() != null)

				return entry.getPluginId();

		case 2:

			if (entry.getDate() != null) {

				DateFormat formatter = new SimpleDateFormat(LogEntry.F_DATE_FORMAT);

				return formatter.format(entry.getDate());

			}

		}

		return ""; //$NON-NLS-1$

	}

	public void connect(Object consumer) {

		if (!consumers.contains(consumer))

			consumers.add(consumer);

	}

	public void disconnect(Object consumer) {

		consumers.remove(consumer);

		if (consumers.size() == 0) {

			dispose();

		}

	}

}