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
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.corext.util;
  
  import org.w3c.dom.Element;
  
  public class QualifiedTypeNameHistory extends History {
  	
  	private static final String NODE_ROOT= "qualifiedTypeNameHistroy"; //$NON-NLS-1$
  	private static final String NODE_TYPE_INFO= "fullyQualifiedTypeName"; //$NON-NLS-1$
  	private static final String NODE_NAME= "name"; //$NON-NLS-1$
  	
  	private static QualifiedTypeNameHistory fgInstance;
  	
  	
  	public static QualifiedTypeNameHistory getDefault() {
  		if (fgInstance == null)
  			fgInstance= new QualifiedTypeNameHistory("QualifiedTypeNameHistory.xml"); //$NON-NLS-1$
  		
  		return fgInstance;
  	}
  	
  	public QualifiedTypeNameHistory(String fileName) {
  		super(fileName, NODE_ROOT, NODE_TYPE_INFO);
  		load();
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	protected void setAttributes(Object object, Element element) {
  		element.setAttribute(NODE_NAME, (String)object);
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	protected Object createFromElement(Element element) {
  		return element.getAttribute(NODE_NAME);
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	protected Object getKey(Object object) {
  		return object;
  	}
  	
  	public static int getBoost(String fullyQualifiedTypeName, int min, int max) {
  		float position= getDefault().getNormalizedPosition(fullyQualifiedTypeName);
  		int dist= max - min;
  		return Math.round(position * dist) + min;
  	}
  
  	public static void remember(String fullyQualifiedTypeName) {
  		getDefault().accessed(fullyQualifiedTypeName);
  	}
  
  }
  