StatusDescriptionHelper.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/

package org.olat.course.nodes;

import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.olat.course.editor.StatusDescription;

/**
 * Description:<br>
 * TODO: patrick Class Description for StatusDescriptionHelper
 * <P>
 * Initial Date: Aug 11, 2005 <br>
 * 
 * @author patrick
 */
public class StatusDescriptionHelper {

	public static StatusDescription[] sort(StatusDescription[] status){
		List<StatusDescription> tmp = Arrays.asList(status);
		return sort(tmp);
	}
	
	
	public static StatusDescription[] sort(List<StatusDescription> missingNames) {
		Collections.sort(missingNames, new ErrorsGtWarningGtInfo());
		/*
		 * remove NOERRORS size bigger 1; NOERROR -> Level == OFF > SEVERE > WARNING >
		 * INFO
		 */
		if (missingNames.size() > 1) {
			for(int i=0;i<missingNames.size();i++) {
				if(missingNames.get(i)==StatusDescription.NOERROR) {
					//aha found one to remove. Remove shifts all elements to the left, e.g. subtracts one of the indices
					missingNames.remove(i);
					//thus we have to loop on place to remove all NOERRORS which shift to the ith place.
					while(missingNames.get(i)==StatusDescription.NOERROR) {
						missingNames.remove(i);
					}
				}
			}
		}
		StatusDescription[] retVal = new StatusDescription[missingNames.size()];
		retVal = missingNames.toArray(retVal);
		return retVal;
	}

	static class ErrorsGtWarningGtInfo implements Comparator<StatusDescription> {
		public int compare(StatusDescription o1, StatusDescription o2) {
			StatusDescription s1 = o1;
			StatusDescription s2 = o2;
			return s2.getLevel().intValue() - s1.getLevel().intValue();
		}
	}

}