content: /**
   *  Copyright (c) 2013-2016 Angelo ZERR.
   *  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:
   *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
   */
  package tern.eclipse.ide.internal.core.scriptpath;
  
  import java.util.Comparator;
  
  import tern.scriptpath.ITernScriptPath;
  import tern.scriptpath.ITernScriptPath.ScriptPathsType;
  
  /**
   * Tern script path comparator to sort script path by folder / project.
   *
   */
  public class TernScriptPathComparator implements Comparator<ITernScriptPath> {
  
  	public static final Comparator<ITernScriptPath> INSTANCE = new TernScriptPathComparator();
  
  	@Override
  	public int compare(ITernScriptPath path1, ITernScriptPath path2) {
  		int relevance1 = getRelevance(path1.getType());
  		int relevance2 = getRelevance(path2.getType());
  		return relevance2 - relevance1;
  	}
  
  	private int getRelevance(ScriptPathsType type) {
  		switch (type) {
  		case FILE:
  			return 3;
  		case FOLDER:
  			return 2;
  		case PROJECT:
  			return 1;
  		}
  		return 0;
  	}
  
  }
  