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;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  /**
   * Locator for source files that picks source files from a given directory in
   * the file system.
   */
  public class DirectorySourceFileLocator extends InputStreamSourceFileLocator {
  
  	private final File directory;
  
  	/**
  	 * Creates a new locator that searches for source files in the given
  	 * directory.
  	 * 
  	 * @param directory
  	 *            directory to search for source file
  	 * @param encoding
  	 *            encoding of the source files, <code>null</code> for platform
  	 *            default encoding
  	 * @param tabWidth
  	 *            tab width in source files as number of blanks
  	 * 
  	 */
  	public DirectorySourceFileLocator(final File directory,
  			final String encoding, final int tabWidth) {
  		super(encoding, tabWidth);
  		this.directory = directory;
  	}
  
  	@Override
  	protected InputStream getSourceStream(final String path) throws IOException {
  		final File file = new File(directory, path);
  		if (file.exists()) {
  			return new FileInputStream(file);
  		} else {
  			return null;
  		}
  	}
  
  }
  