content: /*******************************************************************************
   * 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
   *     Angelo ZERR : copied from  org.eclipse.wst.jsdt.internal.ui.dialogs.StatusUtil
   *******************************************************************************/
  package ts.eclipse.ide.ui.utils;
  
  import org.eclipse.core.runtime.IStatus;
  import org.eclipse.core.runtime.Status;
  import org.eclipse.jface.dialogs.DialogPage;
  import org.eclipse.jface.dialogs.IMessageProvider;
  
  /**
   * A utility class to work with IStatus.
   */
  public class StatusUtil {
  
  	/**
  	 * Compares two instances of <code>IStatus</code>. The more severe is returned:
  	 * An error is more severe than a warning, and a warning is more severe
  	 * than ok. If the two stati have the same severity, the second is returned.
  	 */
  	public static IStatus getMoreSevere(IStatus s1, IStatus s2) {
  		if (s1.getSeverity() > s2.getSeverity()) {
  			return s1;
  		} else {
  			return s2;
  		}
  	}
  
  	/**
  	 * Finds the most severe status from a array of stati.
  	 * An error is more severe than a warning, and a warning is more severe
  	 * than ok.
  	 */
  	public static IStatus getMostSevere(IStatus[] status) {
  		IStatus max= null;
  		for (int i= 0; i < status.length; i++) {
  			IStatus curr= status[i];
  			if (curr.matches(IStatus.ERROR)) {
  				return curr;
  			}
  			if (max == null || curr.getSeverity() > max.getSeverity()) {
  				max= curr;
  			}
  		}
  		return max;
  	}
  
  	/**
  	 * Applies the status to the status line of a dialog page.
  	 */
  	public static void applyToStatusLine(DialogPage page, IStatus status) {
  		String message= Status.OK_STATUS.equals(status) ? null : status.getMessage();
  		switch (status.getSeverity()) {
  			case IStatus.OK:
  				page.setMessage(message, IMessageProvider.NONE);
  				page.setErrorMessage(null);
  				break;
  			case IStatus.WARNING:
  				page.setMessage(message, IMessageProvider.WARNING);
  				page.setErrorMessage(null);
  				break;
  			case IStatus.INFO:
  				page.setMessage(message, IMessageProvider.INFORMATION);
  				page.setErrorMessage(null);
  				break;
  			default:
  				if (message.length() == 0) {
  					message= null;
  				}
  				page.setMessage(null);
  				page.setErrorMessage(message);
  				break;
  		}
  	}
  }
  