| /******************************************************************************* |
| * Copyright (c) 2009, 2018 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.IOException; |
| import java.io.Reader; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Locator that searches source files in multiple {@link ISourceFileLocator} |
| * instances. For each lookup request the first locator that returns a |
| * {@link Reader} for source content is selected. |
| */ |
| public class MultiSourceFileLocator implements ISourceFileLocator { |
| |
| private final int tabWidth; |
| |
| private final List<ISourceFileLocator> delegates; |
| |
| /** |
| * Creates a new empty locator. |
| * |
| * @param tabWidth |
| * tab width in source files as number of blanks used for all |
| * source files |
| */ |
| public MultiSourceFileLocator(final int tabWidth) { |
| this.tabWidth = tabWidth; |
| this.delegates = new ArrayList<ISourceFileLocator>(); |
| } |
| |
| /** |
| * Adds the given locator. Locators are queried in the sequence they have |
| * been added. |
| * |
| * @param locator |
| * Additional locator to query |
| */ |
| public void add(final ISourceFileLocator locator) { |
| delegates.add(locator); |
| } |
| |
| public Reader getSourceFile(final String packageName, final String fileName) |
| throws IOException { |
| for (final ISourceFileLocator d : delegates) { |
| final Reader reader = d.getSourceFile(packageName, fileName); |
| if (reader != null) { |
| return reader; |
| } |
| } |
| return null; |
| } |
| |
| public int getTabWidth() { |
| return tabWidth; |
| } |
| |
| } |