content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * 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:
   *    Marc R. Hoffmann - initial API and implementation
   *    
   *******************************************************************************/
  package org.jacoco.report.internal.html.index;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.jacoco.report.internal.ReportOutputFolder;
  import org.jacoco.report.internal.html.ILinkable;
  
  /**
   * An index over all report pages that allows queries according to certain
   * criteria.
   */
  public class ElementIndex implements IIndexUpdate {
  
  	private final ReportOutputFolder baseFolder;
  
  	private final Map<Long, String> allClasses = new HashMap<Long, String>();
  
  	/**
  	 * Creates a new empty index for a HTML report.
  	 * 
  	 * @param baseFolder
  	 *            base folder where all links are calculated relative to
  	 */
  	public ElementIndex(final ReportOutputFolder baseFolder) {
  		this.baseFolder = baseFolder;
  	}
  
  	/**
  	 * Returns the link to the class with the given identifier if a
  	 * corresponding page exists.
  	 * 
  	 * @param classid
  	 *            class identifier
  	 * @return Link or null
  	 */
  	public String getLinkToClass(final long classid) {
  		return allClasses.get(Long.valueOf(classid));
  	}
  
  	// === IIndexUpdater ===
  
  	public void addClass(final ILinkable link, final long classid) {
  		allClasses.put(Long.valueOf(classid), link.getLink(baseFolder));
  	}
  
  }
  