bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/statushandlers/LabelProviderWrapper.java - platform/eclipse.platform.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009, 2010 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.ui.internal.statushandlers;

 import com.ibm.icu.text.DateFormat;
 import java.net.URL;
 import java.util.Collection;
 import java.util.Date;
 import java.util.Map;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.resource.LocalResourceManager;
 import org.eclipse.jface.resource.ResourceManager;
 import org.eclipse.jface.viewers.ILabelDecorator;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.progress.ProgressManager;
 import org.eclipse.ui.internal.progress.ProgressMessages;
 import org.eclipse.ui.progress.IProgressConstants;
 import org.eclipse.ui.statushandlers.IStatusAdapterConstants;
 import org.eclipse.ui.statushandlers.StatusAdapter;


 /**
  * This is an utility class which is responsible for text and icon decorators in
  * the StatusDialog.
  *
  * @since 3.6
  */
 public class LabelProviderWrapper extends ViewerComparator implements
 		ITableLabelProvider {
 	/**
 	 * The default status label provider.
 	 */
 	private class DefaultLabelProvider implements ITableLabelProvider {
 		ResourceManager manager = new LocalResourceManager(JFaceResources
 				.getResources());

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse
 		 * .jface.viewers.ILabelProviderListener)
 		 */
 		public void addListener(ILabelProviderListener listener) {
 			// Do nothing
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
 		 */
 		public void dispose() {
 			manager.dispose();
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java
 		 * .lang.Object, int)
 		 */
 		public Image getColumnImage(Object element, int columnIndex) {
 			Image result = null;
 			if (element != null) {
 				StatusAdapter statusAdapter = ((StatusAdapter) element);
 				Job job = (Job) (statusAdapter.getAdapter(Job.class));
 				if (job != null) {
 					result = getIcon(job);
 				}
 			}
 			// if somehow disposed image was received (should not happen)
 			if (result != null && result.isDisposed()) {
 				result = null;
 			}
 			return result;
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.
 		 * lang.Object, int)
 		 */
 		public String getColumnText(Object element, int columnIndex) {
 			StatusAdapter statusAdapter = (StatusAdapter) element;
 			String text = WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
 			if (!isMulti()) {
 				Job job = (Job) (statusAdapter.getAdapter(Job.class));
 				if (job != null) {
 					text = getPrimaryMessage(statusAdapter);
 				} else {
 					text = getSecondaryMessage(statusAdapter);
 				}
 			} else {
 				Job job = (Job) (statusAdapter.getAdapter(Job.class));
 				if (job != null) {
 					text = job.getName();
 				} else {
 					text = getPrimaryMessage(statusAdapter);
 				}
 			}
 			Long timestamp = (Long) statusAdapter
 					.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY);

 			if (timestamp != null && isMulti()) {
 				String date = DateFormat.getDateTimeInstance(DateFormat.LONG,
 						DateFormat.LONG)
 						.format(new Date(timestamp.longValue()));
 				return NLS.bind(ProgressMessages.JobInfo_Error, (new Object[] {
 						text, date }));
 			}
 			return text;
 		}

 		/*
 		 * Get the icon for the job.
 		 */
 		private Image getIcon(Job job) {
 			if (job != null) {
 				Object property = job
 						.getProperty(IProgressConstants.ICON_PROPERTY);

 				// Create an image from the job's icon property or family
 				if (property instanceof ImageDescriptor) {
 					return manager.createImage((ImageDescriptor) property);
 				} else if (property instanceof URL) {
 					return manager.createImage(ImageDescriptor
 							.createFromURL((URL) property));
 				} else {
 					// Let the progress manager handle the resource management
 					return ProgressManager.getInstance().getIconFor(job);
 				}
 			}
 			return null;
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java
 		 * .lang.Object, java.lang.String)
 		 */
 		public boolean isLabelProperty(Object element, String property) {
 			return false;
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see
 		 * org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse
 		 * .jface.viewers.ILabelProviderListener)
 		 */
 		public void removeListener(ILabelProviderListener listener) {
 			// Do nothing
 		}
 	}

 	private ITableLabelProvider labelProvider;

 	/**
 	 * This field stores the decorator which can override various texts produced
 	 * by this class.
 	 */
 	private ILabelDecorator messageDecorator;

 	private Map dialogState;

 	/**
 	 * @param dialogState
 	 */
 	public LabelProviderWrapper(Map dialogState) {
 		this.dialogState = dialogState;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang
 	 * .Object, int)
 	 */
 	public Image getColumnImage(Object element, int columnIndex) {
 		return labelProvider.getColumnImage(element, columnIndex);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang
 	 * .Object, int)
 	 */
 	public String getColumnText(Object element, int columnIndex) {
 		return getLabelProvider().getColumnText(element, columnIndex);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.
 	 * jface.viewers.ILabelProviderListener)
 	 */
 	public void addListener(ILabelProviderListener listener) {
 		getLabelProvider().addListener(listener);
 	}

 	/**
 	 * This method disposes the label provider if and only if the dialog is not
 	 * changing its state.
 	 *
 	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
 	 */
 	public void dispose() {
 		boolean modalitySwitch = ((Boolean) dialogState.get(IStatusDialogConstants.MODALITY_SWITCH))
 				.booleanValue();
 		if (!modalitySwitch) {
 			getLabelProvider().dispose();
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang
 	 * .Object, java.lang.String)
 	 */
 	public boolean isLabelProperty(Object element, String property) {
 		return getLabelProvider().isLabelProperty(element, property);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse
 	 * .jface.viewers.ILabelProviderListener)
 	 */
 	public void removeListener(ILabelProviderListener listener) {
 		getLabelProvider().removeListener(listener);
 	}

 	/**
 	 * Gets {@link Image} associated with current {@link StatusAdapter}
 	 * severity.
 	 *
 	 * @param statusAdapter
 	 *
 	 * @return {@link Image} associated with current {@link StatusAdapter}
 	 *         severity.
 	 */
 	public Image getImage(StatusAdapter statusAdapter) {
 		if (statusAdapter != null) {
 			int severity = statusAdapter.getStatus().getSeverity();
 			switch (severity) {
 			case IStatus.OK:
 			case IStatus.INFO:
 			case IStatus.CANCEL:
 				return getSWTImage(SWT.ICON_INFORMATION);
 			case IStatus.WARNING:
 				return getSWTImage(SWT.ICON_WARNING);
 			default: /* IStatus.ERROR */
 				return getSWTImage(SWT.ICON_ERROR);
 			}
 		}
 		// should not never happen but if we do not know what is going on, then
 		// return error image.
 		return getSWTImage(SWT.ICON_ERROR);
 	}

 	/**
 	 * Get an <code>Image</code> from the provide SWT image constant.
 	 *
 	 * @param imageID
 	 *            the SWT image constant
 	 * @return image the image
 	 */
 	public Image getSWTImage(final int imageID) {
 		return Display.getCurrent().getSystemImage(imageID);
 	}

 	/**
 	 * This method computes the dialog main message.
 	 *
 	 * If there is only one reported status adapter, main message should be:
 	 * <ul>
 	 * <li>information about job that reported an error.</li>
 	 * <li>primary message, if the statusAdapter was not reported by job</li>
 	 * </ul>
 	 *
 	 * If there is more reported statusAdapters, main message should be:
 	 * <ul>
 	 * <li>primary message for job reported statusAdapters</li>
 	 * <li>secondary message for statuses not reported by jobs</li>
 	 * </ul>
 	 *
 	 * If nothing can be found, some general information should be displayed.
 	 *
 	 * @param statusAdapter
 	 *            A status adapter which is used as the base for computation.
 	 * @return main message of the dialog.
 	 *
 	 * @see #getPrimaryMessage(StatusAdapter)
 	 * @see #getSecondaryMessage(StatusAdapter)
 	 */
 	public String getMainMessage(StatusAdapter statusAdapter) {
 		if (!isMulti()) {
 			Job job = (Job) (statusAdapter.getAdapter(Job.class));
 			// job
 			if (job != null) {
 				return NLS
 						.bind(
 								WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurredInJob,
 								job.getName());
 			}
 			// we are not handling job
 			return getPrimaryMessage(statusAdapter);
 		}
 		// we have a list. primary message or job name or on the list name (both
 		// with timestamp if available).
 		// we display secondary message or status
 		if (isMulti()) {
 			Job job = (Job) (statusAdapter.getAdapter(Job.class));
 			// job
 			if (job != null) {
 				return getPrimaryMessage(statusAdapter);
 			}

 			// plain status
 			return getSecondaryMessage(statusAdapter);
 		}
 		return WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
 	}

 	/**
 	 * Retrieves primary message from passed statusAdapter. Primary message
 	 * should be (from the most important):
 	 * <ul>
 	 * <li>statusAdapter title</li>
 	 * <li>IStatus message</li>
 	 * <li>pointing to child statuses if IStatus has them.</li>
 	 * <li>exception message</li>
 	 * <li>exception class</li>
 	 * <li>general message informing about error (no details at all)</li>
 	 * </ul>
 	 *
 	 * @param statusAdapter
 	 *            an status adapter to retrieve primary message from
 	 * @return String containing primary message
 	 *
 	 * @see #getMainMessage(StatusAdapter)
 	 * @see #getSecondaryMessage(StatusAdapter)
 	 */
 	public String getPrimaryMessage(StatusAdapter statusAdapter) {
 		// if there was nonempty title set, display the title
 		Object property = statusAdapter
 				.getProperty(IStatusAdapterConstants.TITLE_PROPERTY);
 		if (property instanceof String) {
 			String header = (String) property;
 			if (header.trim().length() > 0) {
 				return decorate(header, statusAdapter);
 			}
 		}
 		// if there was message set in the status
 		IStatus status = statusAdapter.getStatus();
 		if (status.getMessage() != null
 				&& status.getMessage().trim().length() > 0) {
 			return decorate(status.getMessage(), statusAdapter);
 		}

 		// if status has children
 		if (status.getChildren().length > 0) {
 			return WorkbenchMessages.WorkbenchStatusDialog_StatusWithChildren;
 		}

 		// check the exception
 		Throwable t = status.getException();
 		if (t != null) {
 			if (t.getMessage() != null && t.getMessage().trim().length() > 0) {
 				return decorate(t.getMessage(), statusAdapter);
 			}
 			return t.getClass().getName();
 		}
 		return WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
 	}

 	/**
 	 * Retrieves secondary message from the passed statusAdapter. Secondary
 	 * message is one level lower than primary. Secondary message should be
 	 * (from the most important):
 	 * <ul>
 	 * <li>IStatus message</li>
 	 * <li>pointing to child statuses if IStatus has them.</li>
 	 * <li>exception message</li>
 	 * <li>exception class</li>
 	 * </ul>
 	 * Secondary message should not be the same as primary one. If no secondary
 	 * message can be extracted, details should be pointed.
 	 *
 	 * @param statusAdapter
 	 *            an status adapter to retrieve secondary message from
 	 * @return String containing secondary message
 	 *
 	 * @see #getMainMessage(StatusAdapter)
 	 * @see #getPrimaryMessage(StatusAdapter)
 	 */
 	public String getSecondaryMessage(StatusAdapter statusAdapter) {
 		String primary = getPrimaryMessage(statusAdapter);
 		// we can skip the title, it is always displayed as primary message

 		// if there was message set in the status
 		IStatus status = statusAdapter.getStatus();
 		String message = status.getMessage();
 		String decoratedMessage = message == null ? null : decorate(message,
 				statusAdapter);
 		if (message != null && message.trim().length() > 0
 				&& !primary.equals(decoratedMessage)) {
 			/* we have not displayed it yet */
 			return decoratedMessage;
 		}
 		// if status has children
 		if (status.getChildren().length > 0
 				&& !primary.equals(decoratedMessage)) {
 			return WorkbenchMessages.WorkbenchStatusDialog_StatusWithChildren;
 		}

 		// check the exception
 		Throwable t = status.getException();
 		if (t != null) {
 			if (t.getMessage() != null) {
 				String decoratedThrowable = decorate(t.getMessage(),
 						statusAdapter);
 				if (t.getMessage().trim().length() > 0
 						&& !primary.equals(decoratedThrowable)) {
 					return decoratedThrowable;
 				}
 			}
 			String throwableName = t.getClass().getName();
 			if (!primary.equals(throwableName)) {
 				return throwableName;
 			}
 		}
 		return WorkbenchMessages.WorkbenchStatusDialog_SeeDetails;
 	}

 	private String decorate(String string, StatusAdapter adapter) {
 		messageDecorator = (ILabelDecorator) dialogState
 				.get(IStatusDialogConstants.DECORATOR);
 		if (messageDecorator != null) {
 			string = messageDecorator.decorateText(string, adapter);
 		}
 		return string;
 	}

 	private int compare(StatusAdapter s1, StatusAdapter s2) {
 		Long timestamp1 = ((Long) s1
 				.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY));
 		Long timestamp2 = ((Long) s2
 				.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY));
 		if (timestamp1 == null || timestamp2 == null
 				|| (timestamp1.equals(timestamp2))) {
 			String text1 = getColumnText(s1, 0);
 			String text2 = getColumnText(s2, 0);
 			return text1.compareTo(text2);
 		}

 		if (timestamp1.longValue() < timestamp2.longValue()) {
 			return -1;
 		}
 		if (timestamp1.longValue() > timestamp2.longValue()) {
 			return 1;
 		}
 		// should be never called
 		return 0;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.
 	 * viewers.Viewer, java.lang.Object, java.lang.Object)
 	 */
 	public int compare(Viewer testViewer, Object o1, Object o2) {
 		if (o1 instanceof StatusAdapter && o2 instanceof StatusAdapter) {
 			return compare((StatusAdapter) o1, (StatusAdapter) o2);
 		}
 		// should not happen
 		if (o1.hashCode() < o2.hashCode()) {
 			return -1;
 		}
 		if (o2.hashCode() > o2.hashCode()) {
 			return 1;
 		}
 		return 0;
 	}

 	private boolean isMulti() {
 		return ((Collection) dialogState
 				.get(IStatusDialogConstants.STATUS_ADAPTERS)).size() > 1;
 	}

 	/**
 	 * @return Returns the labelProvider.
 	 */
 	public ITableLabelProvider getLabelProvider() {
 		ITableLabelProvider temp = (ITableLabelProvider) dialogState
 				.get(IStatusDialogConstants.CUSTOM_LABEL_PROVIDER);
 		if (temp != null) {
 			labelProvider = temp;
 		}
 		if (labelProvider == null) {
 			labelProvider = new DefaultLabelProvider();
 		}
 		return labelProvider;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2009, 2010 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.ui.internal.statushandlers;

	import com.ibm.icu.text.DateFormat;
	import java.net.URL;
	import java.util.Collection;
	import java.util.Date;
	import java.util.Map;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.jface.resource.LocalResourceManager;
	import org.eclipse.jface.resource.ResourceManager;
	import org.eclipse.jface.viewers.ILabelDecorator;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerComparator;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.ui.internal.WorkbenchMessages;
	import org.eclipse.ui.internal.progress.ProgressManager;
	import org.eclipse.ui.internal.progress.ProgressMessages;
	import org.eclipse.ui.progress.IProgressConstants;
	import org.eclipse.ui.statushandlers.IStatusAdapterConstants;
	import org.eclipse.ui.statushandlers.StatusAdapter;


	/**
	* This is an utility class which is responsible for text and icon decorators in
	* the StatusDialog.
	*
	* @since 3.6
	*/
	public class LabelProviderWrapper extends ViewerComparator implements
	ITableLabelProvider {
	/**
	* The default status label provider.
	*/
	private class DefaultLabelProvider implements ITableLabelProvider {
	ResourceManager manager = new LocalResourceManager(JFaceResources
	.getResources());

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse
	* .jface.viewers.ILabelProviderListener)
	*/
	public void addListener(ILabelProviderListener listener) {
	// Do nothing
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
	*/
	public void dispose() {
	manager.dispose();
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java
	* .lang.Object, int)
	*/
	public Image getColumnImage(Object element, int columnIndex) {
	Image result = null;
	if (element != null) {
	StatusAdapter statusAdapter = ((StatusAdapter) element);
	Job job = (Job) (statusAdapter.getAdapter(Job.class));
	if (job != null) {
	result = getIcon(job);
	}
	}
	// if somehow disposed image was received (should not happen)
	if (result != null && result.isDisposed()) {
	result = null;
	}
	return result;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.
	* lang.Object, int)
	*/
	public String getColumnText(Object element, int columnIndex) {
	StatusAdapter statusAdapter = (StatusAdapter) element;
	String text = WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
	if (!isMulti()) {
	Job job = (Job) (statusAdapter.getAdapter(Job.class));
	if (job != null) {
	text = getPrimaryMessage(statusAdapter);
	} else {
	text = getSecondaryMessage(statusAdapter);
	}
	} else {
	Job job = (Job) (statusAdapter.getAdapter(Job.class));
	if (job != null) {
	text = job.getName();
	} else {
	text = getPrimaryMessage(statusAdapter);
	}
	}
	Long timestamp = (Long) statusAdapter
	.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY);

	if (timestamp != null && isMulti()) {
	String date = DateFormat.getDateTimeInstance(DateFormat.LONG,
	DateFormat.LONG)
	.format(new Date(timestamp.longValue()));
	return NLS.bind(ProgressMessages.JobInfo_Error, (new Object[] {
	text, date }));
	}
	return text;
	}

	/*
	* Get the icon for the job.
	*/
	private Image getIcon(Job job) {
	if (job != null) {
	Object property = job
	.getProperty(IProgressConstants.ICON_PROPERTY);

	// Create an image from the job's icon property or family
	if (property instanceof ImageDescriptor) {
	return manager.createImage((ImageDescriptor) property);
	} else if (property instanceof URL) {
	return manager.createImage(ImageDescriptor
	.createFromURL((URL) property));
	} else {
	// Let the progress manager handle the resource management
	return ProgressManager.getInstance().getIconFor(job);
	}
	}
	return null;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java
	* .lang.Object, java.lang.String)
	*/
	public boolean isLabelProperty(Object element, String property) {
	return false;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse
	* .jface.viewers.ILabelProviderListener)
	*/
	public void removeListener(ILabelProviderListener listener) {
	// Do nothing
	}
	}

	private ITableLabelProvider labelProvider;

	/**
	* This field stores the decorator which can override various texts produced
	* by this class.
	*/
	private ILabelDecorator messageDecorator;

	private Map dialogState;

	/**
	* @param dialogState
	*/
	public LabelProviderWrapper(Map dialogState) {
	this.dialogState = dialogState;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang
	* .Object, int)
	*/
	public Image getColumnImage(Object element, int columnIndex) {
	return labelProvider.getColumnImage(element, columnIndex);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang
	* .Object, int)
	*/
	public String getColumnText(Object element, int columnIndex) {
	return getLabelProvider().getColumnText(element, columnIndex);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.
	* jface.viewers.ILabelProviderListener)
	*/
	public void addListener(ILabelProviderListener listener) {
	getLabelProvider().addListener(listener);
	}

	/**
	* This method disposes the label provider if and only if the dialog is not
	* changing its state.
	*
	* @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
	*/
	public void dispose() {
	boolean modalitySwitch = ((Boolean) dialogState.get(IStatusDialogConstants.MODALITY_SWITCH))
	.booleanValue();
	if (!modalitySwitch) {
	getLabelProvider().dispose();
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang
	* .Object, java.lang.String)
	*/
	public boolean isLabelProperty(Object element, String property) {
	return getLabelProvider().isLabelProperty(element, property);
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse
	* .jface.viewers.ILabelProviderListener)
	*/
	public void removeListener(ILabelProviderListener listener) {
	getLabelProvider().removeListener(listener);
	}

	/**
	* Gets {@link Image} associated with current {@link StatusAdapter}
	* severity.
	*
	* @param statusAdapter
	*
	* @return {@link Image} associated with current {@link StatusAdapter}
	* severity.
	*/
	public Image getImage(StatusAdapter statusAdapter) {
	if (statusAdapter != null) {
	int severity = statusAdapter.getStatus().getSeverity();
	switch (severity) {
	case IStatus.OK:
	case IStatus.INFO:
	case IStatus.CANCEL:
	return getSWTImage(SWT.ICON_INFORMATION);
	case IStatus.WARNING:
	return getSWTImage(SWT.ICON_WARNING);
	default: /* IStatus.ERROR */
	return getSWTImage(SWT.ICON_ERROR);
	}
	}
	// should not never happen but if we do not know what is going on, then
	// return error image.
	return getSWTImage(SWT.ICON_ERROR);
	}

	/**
	* Get an <code>Image</code> from the provide SWT image constant.
	*
	* @param imageID
	* the SWT image constant
	* @return image the image
	*/
	public Image getSWTImage(final int imageID) {
	return Display.getCurrent().getSystemImage(imageID);
	}

	/**
	* This method computes the dialog main message.
	*
	* If there is only one reported status adapter, main message should be:
	* <ul>
	* <li>information about job that reported an error.</li>
	* <li>primary message, if the statusAdapter was not reported by job</li>
	* </ul>
	*
	* If there is more reported statusAdapters, main message should be:
	* <ul>
	* <li>primary message for job reported statusAdapters</li>
	* <li>secondary message for statuses not reported by jobs</li>
	* </ul>
	*
	* If nothing can be found, some general information should be displayed.
	*
	* @param statusAdapter
	* A status adapter which is used as the base for computation.
	* @return main message of the dialog.
	*
	* @see #getPrimaryMessage(StatusAdapter)
	* @see #getSecondaryMessage(StatusAdapter)
	*/
	public String getMainMessage(StatusAdapter statusAdapter) {
	if (!isMulti()) {
	Job job = (Job) (statusAdapter.getAdapter(Job.class));
	// job
	if (job != null) {
	return NLS
	.bind(
	WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurredInJob,
	job.getName());
	}
	// we are not handling job
	return getPrimaryMessage(statusAdapter);
	}
	// we have a list. primary message or job name or on the list name (both
	// with timestamp if available).
	// we display secondary message or status
	if (isMulti()) {
	Job job = (Job) (statusAdapter.getAdapter(Job.class));
	// job
	if (job != null) {
	return getPrimaryMessage(statusAdapter);
	}

	// plain status
	return getSecondaryMessage(statusAdapter);
	}
	return WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
	}

	/**
	* Retrieves primary message from passed statusAdapter. Primary message
	* should be (from the most important):
	* <ul>
	* <li>statusAdapter title</li>
	* <li>IStatus message</li>
	* <li>pointing to child statuses if IStatus has them.</li>
	* <li>exception message</li>
	* <li>exception class</li>
	* <li>general message informing about error (no details at all)</li>
	* </ul>
	*
	* @param statusAdapter
	* an status adapter to retrieve primary message from
	* @return String containing primary message
	*
	* @see #getMainMessage(StatusAdapter)
	* @see #getSecondaryMessage(StatusAdapter)
	*/
	public String getPrimaryMessage(StatusAdapter statusAdapter) {
	// if there was nonempty title set, display the title
	Object property = statusAdapter
	.getProperty(IStatusAdapterConstants.TITLE_PROPERTY);
	if (property instanceof String) {
	String header = (String) property;
	if (header.trim().length() > 0) {
	return decorate(header, statusAdapter);
	}
	}
	// if there was message set in the status
	IStatus status = statusAdapter.getStatus();
	if (status.getMessage() != null
	&& status.getMessage().trim().length() > 0) {
	return decorate(status.getMessage(), statusAdapter);
	}

	// if status has children
	if (status.getChildren().length > 0) {
	return WorkbenchMessages.WorkbenchStatusDialog_StatusWithChildren;
	}

	// check the exception
	Throwable t = status.getException();
	if (t != null) {
	if (t.getMessage() != null && t.getMessage().trim().length() > 0) {
	return decorate(t.getMessage(), statusAdapter);
	}
	return t.getClass().getName();
	}
	return WorkbenchMessages.WorkbenchStatusDialog_ProblemOccurred;
	}

	/**
	* Retrieves secondary message from the passed statusAdapter. Secondary
	* message is one level lower than primary. Secondary message should be
	* (from the most important):
	* <ul>
	* <li>IStatus message</li>
	* <li>pointing to child statuses if IStatus has them.</li>
	* <li>exception message</li>
	* <li>exception class</li>
	* </ul>
	* Secondary message should not be the same as primary one. If no secondary
	* message can be extracted, details should be pointed.
	*
	* @param statusAdapter
	* an status adapter to retrieve secondary message from
	* @return String containing secondary message
	*
	* @see #getMainMessage(StatusAdapter)
	* @see #getPrimaryMessage(StatusAdapter)
	*/
	public String getSecondaryMessage(StatusAdapter statusAdapter) {
	String primary = getPrimaryMessage(statusAdapter);
	// we can skip the title, it is always displayed as primary message

	// if there was message set in the status
	IStatus status = statusAdapter.getStatus();
	String message = status.getMessage();
	String decoratedMessage = message == null ? null : decorate(message,
	statusAdapter);
	if (message != null && message.trim().length() > 0
	&& !primary.equals(decoratedMessage)) {
	/* we have not displayed it yet */
	return decoratedMessage;
	}
	// if status has children
	if (status.getChildren().length > 0
	&& !primary.equals(decoratedMessage)) {
	return WorkbenchMessages.WorkbenchStatusDialog_StatusWithChildren;
	}

	// check the exception
	Throwable t = status.getException();
	if (t != null) {
	if (t.getMessage() != null) {
	String decoratedThrowable = decorate(t.getMessage(),
	statusAdapter);
	if (t.getMessage().trim().length() > 0
	&& !primary.equals(decoratedThrowable)) {
	return decoratedThrowable;
	}
	}
	String throwableName = t.getClass().getName();
	if (!primary.equals(throwableName)) {
	return throwableName;
	}
	}
	return WorkbenchMessages.WorkbenchStatusDialog_SeeDetails;
	}

	private String decorate(String string, StatusAdapter adapter) {
	messageDecorator = (ILabelDecorator) dialogState
	.get(IStatusDialogConstants.DECORATOR);
	if (messageDecorator != null) {
	string = messageDecorator.decorateText(string, adapter);
	}
	return string;
	}

	private int compare(StatusAdapter s1, StatusAdapter s2) {
	Long timestamp1 = ((Long) s1
	.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY));
	Long timestamp2 = ((Long) s2
	.getProperty(IStatusAdapterConstants.TIMESTAMP_PROPERTY));
	if (timestamp1 == null \|\| timestamp2 == null
	\|\| (timestamp1.equals(timestamp2))) {
	String text1 = getColumnText(s1, 0);
	String text2 = getColumnText(s2, 0);
	return text1.compareTo(text2);
	}

	if (timestamp1.longValue() < timestamp2.longValue()) {
	return -1;
	}
	if (timestamp1.longValue() > timestamp2.longValue()) {
	return 1;
	}
	// should be never called
	return 0;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.
	* viewers.Viewer, java.lang.Object, java.lang.Object)
	*/
	public int compare(Viewer testViewer, Object o1, Object o2) {
	if (o1 instanceof StatusAdapter && o2 instanceof StatusAdapter) {
	return compare((StatusAdapter) o1, (StatusAdapter) o2);
	}
	// should not happen
	if (o1.hashCode() < o2.hashCode()) {
	return -1;
	}
	if (o2.hashCode() > o2.hashCode()) {
	return 1;
	}
	return 0;
	}

	private boolean isMulti() {
	return ((Collection) dialogState
	.get(IStatusDialogConstants.STATUS_ADAPTERS)).size() > 1;
	}

	/**
	* @return Returns the labelProvider.
	*/
	public ITableLabelProvider getLabelProvider() {
	ITableLabelProvider temp = (ITableLabelProvider) dialogState
	.get(IStatusDialogConstants.CUSTOM_LABEL_PROVIDER);
	if (temp != null) {
	labelProvider = temp;
	}
	if (labelProvider == null) {
	labelProvider = new DefaultLabelProvider();
	}
	return labelProvider;
	}
	}