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43 package org.netbeans.html.boot.impl;
45 import org.apidesign.html.boot.spi.Fn;
46 import java.io.IOException;
47 import java.io.InputStream;
48 import java.io.Reader;
50 import java.util.Enumeration;
54 * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
56 abstract class JsClassLoader extends ClassLoader {
57 JsClassLoader(ClassLoader parent) {
59 setDefaultAssertionStatus(JsClassLoader.class.desiredAssertionStatus());
63 protected abstract URL findResource(String name);
66 protected abstract Enumeration<URL> findResources(String name);
69 protected Class<?> findClass(String name) throws ClassNotFoundException {
70 if (name.startsWith("javafx")) {
71 return Class.forName(name);
73 if (name.startsWith("netscape")) {
74 return Class.forName(name);
76 if (name.startsWith("com.sun")) {
77 return Class.forName(name);
79 if (name.equals(JsClassLoader.class.getName())) {
80 return JsClassLoader.class;
82 if (name.equals(Fn.class.getName())) {
85 if (name.equals(Fn.Presenter.class.getName())) {
86 return Fn.Presenter.class;
88 if (name.equals(Fn.ToJavaScript.class.getName())) {
89 return Fn.ToJavaScript.class;
91 if (name.equals(Fn.FromJavaScript.class.getName())) {
92 return Fn.FromJavaScript.class;
94 if (name.equals(FnUtils.class.getName())) {
98 name.equals("org.apidesign.html.boot.spi.Fn") ||
99 name.equals("org.netbeans.html.boot.impl.FnUtils") ||
100 name.equals("org.netbeans.html.boot.impl.FnContext")
102 return Class.forName(name);
104 URL u = findResource(name.replace('.', '/') + ".class");
106 InputStream is = null;
109 byte[] arr = new byte[is.available()];
111 while (len < arr.length) {
112 int read = is.read(arr, len, arr.length - len);
114 throw new IOException("Can't read " + u);
120 if (JsPkgCache.process(this, name)) {
121 arr = FnUtils.transform(arr, JsClassLoader.this);
123 return defineClass(name, arr, 0, arr.length);
124 } catch (IOException ex) {
125 throw new ClassNotFoundException("Can't load " + name, ex);
128 if (is != null) is.close();
129 } catch (IOException ex) {
130 throw new ClassNotFoundException(null, ex);
134 return super.findClass(name);
137 protected abstract Fn defineFn(String code, String... names);
138 protected abstract void loadScript(Reader code) throws Exception;