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.xml;
  
  import java.io.IOException;
  import java.io.InputStream;
  
  import org.xml.sax.EntityResolver;
  import org.xml.sax.InputSource;
  import org.xml.sax.SAXException;
  
  /**
   * Loader for local DTD definitions to avoid network access.
   */
  class LocalEntityResolver implements EntityResolver {
  
  	private final Class<?> resourceDelegate;
  
  	public LocalEntityResolver(Class<?> resourceDelegate) {
  		this.resourceDelegate = resourceDelegate;
  	}
  
  	public InputSource resolveEntity(final String publicId, String systemId)
  			throws SAXException, IOException {
  		final int sep = systemId.lastIndexOf('/');
  		if (sep != -1) {
  			systemId = systemId.substring(sep + 1);
  		}
  		final InputStream in = resourceDelegate.getResourceAsStream(systemId);
  		if (in == null) {
  			throw new IOException("No local copy for " + systemId);
  		}
  		return new InputSource(in);
  	}
  
  }
  