Coverage Report - com.sun.javafx.api.ToolProvider
 
Classes in this File Line Coverage Branch Coverage Complexity
ToolProvider
0%
0/31
0%
0/10
0
ToolProvider$CompilerClassLoader
0%
0/17
0%
0/8
0
 
 1  
 /*
 2  
  * Copyright 2005-2006 Sun Microsystems, Inc.  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.  Sun designates this
 8  
  * particular file as subject to the "Classpath" exception as provided
 9  
  * by Sun in the LICENSE file that accompanied this code.
 10  
  *
 11  
  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  
  * version 2 for more details (a copy is included in the LICENSE file that
 15  
  * accompanied this code).
 16  
  *
 17  
  * You should have received a copy of the GNU General Public License version
 18  
  * 2 along with this work; if not, write to the Free Software Foundation,
 19  
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  
  *
 21  
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 22  
  * CA 95054 USA or visit www.sun.com if you need additional information or
 23  
  * have any questions.
 24  
  */
 25  
 
 26  
 package com.sun.javafx.api;
 27  
 
 28  
 import java.io.File;
 29  
 import java.net.MalformedURLException;
 30  
 import java.net.URL;
 31  
 import java.net.URLClassLoader;
 32  
 import java.util.logging.Logger;
 33  
 
 34  
 /**
 35  
  * JavaFX version of javac's ToolProvider class.
 36  
  * 
 37  
  * @author Tom Ball
 38  
  */
 39  0
 public class ToolProvider {
 40  0
     private static Logger logger = Logger.getLogger("com.sun.javafx");
 41  
 
 42  0
     private ToolProvider() {}
 43  
 
 44  
     /**
 45  
      * Gets a JavaFX Script compiler instance.
 46  
      * @return the compiler instance or {@code null} if no compiler 
 47  
      *         is included as part of the application classpath
 48  
      */
 49  
     public static JavafxCompiler getJavafxCompiler() {
 50  
         try {
 51  0
             URL[] urls = new URL[] {
 52  
                 getPath("com.sun.tools.javafx.api.JavafxcTool"),
 53  
                 getPath("com.sun.tools.javac.util.Context")
 54  
             };
 55  0
             ClassLoader parent = JavafxCompiler.class.getClassLoader();
 56  0
             ClassLoader cl = new CompilerClassLoader(urls, parent);
 57  0
             Class<?> cls = Class.forName("com.sun.tools.javafx.api.JavafxcTool", false, cl);
 58  0
             return (JavafxCompiler)cls.newInstance();
 59  0
         } catch (Throwable t) {
 60  0
             throw new RuntimeException(t);
 61  
         }
 62  
     }
 63  
 
 64  
     /**
 65  
      * Gets a JavaFX Script script engine instance.  This is an alternative
 66  
      * to the general use where the script engine is looked up as a service.
 67  
      * @return the script engine instance or {@code null} if no script engine 
 68  
      *         is included as part of the application classpath
 69  
      */
 70  
     public static JavaFXScriptEngine getJavaFXScriptEngine() {
 71  
         try {
 72  0
             URL[] urls = new URL[] {
 73  
                 getPath("com.sun.tools.javafx.script.JavaFXScriptEngineImpl"),
 74  
                 getPath("com.sun.tools.javac.util.Context")
 75  
             };
 76  0
             ClassLoader parent = JavafxCompiler.class.getClassLoader();
 77  0
             ClassLoader cl = new CompilerClassLoader(urls, parent);
 78  0
             Class<?> cls = Class.forName("com.sun.tools.javafx.script.JavaFXScriptEngineImpl", false, cl);
 79  0
             return (JavaFXScriptEngine)cls.newInstance();
 80  0
         } catch (Throwable t) {
 81  0
             throw new RuntimeException(t);
 82  
         }
 83  
     }
 84  
 
 85  
     /**
 86  
      * ClassLoader which loads internal javafxc and javac classes from the
 87  
      * specified path instead of the classpath default.
 88  
      */
 89  
     private static class CompilerClassLoader extends URLClassLoader {
 90  
         public CompilerClassLoader(URL[] urls, ClassLoader parent) {
 91  0
             super(urls, parent);
 92  0
         }
 93  
 
 94  
         @Override
 95  
         public URL findResource(String name) {
 96  0
             URL url = super.findResource(name);
 97  0
             return url;
 98  
         }
 99  
         
 100  
         @Override
 101  
         protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
 102  0
             if (name.indexOf("sun.tools") >= 0) {
 103  0
                 Class c = findLoadedClass(name);
 104  0
                 if (c != null) {
 105  0
                     logger.info("found loaded class: " + name);
 106  0
                     return c;
 107  
                 }
 108  0
                 c = findClass(name);
 109  0
                 if (c == null) {
 110  0
                     logger.info("didn't find class:  " + name);
 111  0
                     return super.loadClass(name, resolve);
 112  
                 }
 113  0
                 if (resolve)
 114  0
                     resolveClass(c);
 115  0
                 return c;
 116  
             }
 117  0
             return super.loadClass(name, resolve);
 118  
         }
 119  
     }
 120  
 
 121  
     /**
 122  
      * Return the classpath element that contains the specified class.
 123  
      * @return the classpath element, usually the class's jar file
 124  
      * @throws java.net.MalformedURLException
 125  
      */
 126  
     private static URL getPath(String className) throws MalformedURLException {
 127  0
         String classFile = className.replace('.', '/') + ".class";
 128  0
         ClassLoader cl = ToolProvider.class.getClassLoader();
 129  0
         if (cl == null)
 130  0
             cl = ClassLoader.getSystemClassLoader();
 131  0
         URL classURL = cl.getResource(classFile);
 132  0
         String path = classURL.getPath();
 133  0
         assert path.endsWith(classFile);
 134  0
         path = path.substring(0, path.indexOf(classFile) - 1);
 135  0
         if (path.endsWith("!")) {
 136  0
             path = path.substring(0, path.length() - 1);
 137  
         }
 138  0
         File f = new File(path);
 139  0
         if (f.exists()) {
 140  0
             return f.toURI().toURL();
 141  
         }
 142  0
         return new URL(path);
 143  
     }
 144  
 }