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43 package org.netbeans.html.boot.impl;
45 import java.io.Closeable;
46 import java.io.Reader;
48 import java.net.URLClassLoader;
49 import java.util.ArrayList;
50 import java.util.Arrays;
51 import java.util.Collection;
52 import java.util.List;
53 import javax.script.Invocable;
54 import javax.script.ScriptEngine;
55 import javax.script.ScriptEngineManager;
56 import javax.script.ScriptException;
57 import org.apidesign.html.boot.spi.Fn;
58 import org.testng.annotations.BeforeClass;
59 import org.testng.annotations.BeforeMethod;
63 * @author Jaroslav Tulach <jtulach@netbeans.org>
65 public class FnTest extends JsClassLoaderBase {
66 private static Fn.Presenter presenter;
72 public static void createClassLoader() throws Exception {
73 ScriptEngineManager sem = new ScriptEngineManager();
74 final ScriptEngine eng = sem.getEngineByMimeType("text/javascript");
76 final URL my = FnTest.class.getProtectionDomain().getCodeSource().getLocation();
77 ClassLoader parent = JsClassLoaderTest.class.getClassLoader().getParent();
78 final URLClassLoader ul = new URLClassLoader(new URL[] { my }, parent);
80 class Impl implements FindResources, Fn.Presenter {
82 public void findResources(String path, Collection<? super URL> results, boolean oneIsEnough) {
83 URL u = ul.findResource(path);
90 public Fn defineFn(String code, String... names) {
91 StringBuilder sb = new StringBuilder();
92 sb.append("(function() {");
93 sb.append("return function(");
95 for (String n : names) {
105 final Object val = eng.eval(sb.toString());
106 return new Fn(this) {
108 public Object invoke(Object thiz, Object... args) throws Exception {
109 List<Object> all = new ArrayList<Object>(args.length + 1);
110 all.add(thiz == null ? val : thiz);
111 all.addAll(Arrays.asList(args));
112 Invocable inv = (Invocable)eng;
114 Object ret = inv.invokeMethod(val, "call", all.toArray());
115 return val.equals(ret) ? null : ret;
116 } catch (ScriptException ex) {
121 } catch (ScriptException ex) {
122 throw new LinkageError("Can't parse: " + sb, ex);
127 public void displayPage(URL resource, Runnable r) {
128 throw new UnsupportedOperationException();
132 public void loadScript(Reader code) throws Exception {
136 Impl impl = new Impl();
137 ClassLoader loader = FnUtils.newLoader(impl, impl, parent);
140 Closeable close = FnContext.activate(impl);
141 methodClass = loader.loadClass(JsMethods.class.getName());
145 @BeforeMethod public void initPresenter() {
146 FnContext.currentPresenter(presenter);