ToolTester.java revision 1732:e39669aea0bd
1/* 2 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import java.io.File; 25import java.io.IOException; 26import java.nio.charset.Charset; 27import java.util.*; 28import javax.tools.*; 29 30import static javax.tools.StandardLocation.CLASS_PATH; 31import static javax.tools.StandardLocation.SOURCE_PATH; 32import static javax.tools.StandardLocation.CLASS_OUTPUT; 33 34public class ToolTester { 35 public final File test_src = new File(System.getProperty("test.src", ".")); 36 public final File test_classes = new File(System.getProperty("test.classes", ".")); 37 public final List<File> test_class_path = pathToFiles(System.getProperty("test.class.path"), 38 Arrays.asList(test_classes)); 39 public final JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); 40 public final StandardJavaFileManager fm = getFileManager(tool, null, null); 41 public JavaCompiler.CompilationTask task = null; 42 public final StandardJavaFileManager getFileManager(JavaCompiler tool, 43 DiagnosticListener<JavaFileObject> dl, 44 Charset encoding) { 45 StandardJavaFileManager fm = tool.getStandardFileManager(dl, null, encoding); 46 try { 47 fm.setLocation(SOURCE_PATH, Arrays.asList(test_src)); 48 fm.setLocation(CLASS_PATH, test_class_path); 49 fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes)); 50 } catch (IOException e) { 51 throw new AssertionError(e); 52 } 53 return fm; 54 } 55 56 protected List<File> pathToFiles(String path, List<File> defaultPath) { 57 List<File> files = new ArrayList<>(); 58 for (String f: path.split(File.pathSeparator)) { 59 if (f.isEmpty()) 60 continue; 61 File file = new File(f); 62 if (file.exists()) 63 files.add(file); 64 } 65 if (files.isEmpty()) 66 files.addAll(defaultPath); 67 return files; 68 } 69 70 protected <T> List<T> join(List<T> a, List<T> b) { 71 if (a.isEmpty()) 72 return b; 73 if (b.isEmpty()) 74 return a; 75 List<T> result = new ArrayList<>(); 76 result.addAll(a); 77 result.addAll(b); 78 return result; 79 } 80} 81