boot/src/test/java/org/netbeans/html/boot/impl/JsClassLoaderTest.java
branchnetbeans
changeset 362 92fb71afdc0e
parent 358 80702021b851
child 365 5c93ad8c7a15
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/boot/src/test/java/org/netbeans/html/boot/impl/JsClassLoaderTest.java	Mon Dec 16 16:59:43 2013 +0100
     1.3 @@ -0,0 +1,155 @@
     1.4 +/**
     1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     1.6 + *
     1.7 + * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
     1.8 + *
     1.9 + * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
    1.10 + * Other names may be trademarks of their respective owners.
    1.11 + *
    1.12 + * The contents of this file are subject to the terms of either the GNU
    1.13 + * General Public License Version 2 only ("GPL") or the Common
    1.14 + * Development and Distribution License("CDDL") (collectively, the
    1.15 + * "License"). You may not use this file except in compliance with the
    1.16 + * License. You can obtain a copy of the License at
    1.17 + * http://www.netbeans.org/cddl-gplv2.html
    1.18 + * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
    1.19 + * specific language governing permissions and limitations under the
    1.20 + * License.  When distributing the software, include this License Header
    1.21 + * Notice in each file and include the License file at
    1.22 + * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
    1.23 + * particular file as subject to the "Classpath" exception as provided
    1.24 + * by Oracle in the GPL Version 2 section of the License file that
    1.25 + * accompanied this code. If applicable, add the following below the
    1.26 + * License Header, with the fields enclosed by brackets [] replaced by
    1.27 + * your own identifying information:
    1.28 + * "Portions Copyrighted [year] [name of copyright owner]"
    1.29 + *
    1.30 + * Contributor(s):
    1.31 + *
    1.32 + * The Original Software is NetBeans. The Initial Developer of the Original
    1.33 + * Software is Oracle. Portions Copyright 2013-2013 Oracle. All Rights Reserved.
    1.34 + *
    1.35 + * If you wish your version of this file to be governed by only the CDDL
    1.36 + * or only the GPL Version 2, indicate your decision by adding
    1.37 + * "[Contributor] elects to include this software in this distribution
    1.38 + * under the [CDDL or GPL Version 2] license." If you do not indicate a
    1.39 + * single choice of license, a recipient has the option to distribute
    1.40 + * your version of this file under either the CDDL, the GPL Version 2 or
    1.41 + * to extend the choice of license to its licensees as provided above.
    1.42 + * However, if you add GPL Version 2 code and therefore, elected the GPL
    1.43 + * Version 2 license, then the option applies only if the new code is
    1.44 + * made subject to such option by the copyright holder.
    1.45 + */
    1.46 +package org.netbeans.html.boot.impl;
    1.47 +
    1.48 +import java.io.Closeable;
    1.49 +import java.io.Reader;
    1.50 +import org.apidesign.html.boot.spi.Fn;
    1.51 +import java.net.URL;
    1.52 +import java.net.URLClassLoader;
    1.53 +import java.util.ArrayList;
    1.54 +import java.util.Arrays;
    1.55 +import java.util.Enumeration;
    1.56 +import java.util.List;
    1.57 +import javax.script.Invocable;
    1.58 +import javax.script.ScriptEngine;
    1.59 +import javax.script.ScriptEngineManager;
    1.60 +import javax.script.ScriptException;
    1.61 +import org.testng.annotations.AfterClass;
    1.62 +import org.testng.annotations.BeforeClass;
    1.63 +import org.testng.annotations.BeforeMethod;
    1.64 +
    1.65 +/**
    1.66 + *
    1.67 + * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
    1.68 + */
    1.69 +public class JsClassLoaderTest extends JsClassLoaderBase{
    1.70 +    private static Fn.Presenter loader;
    1.71 +
    1.72 +    @BeforeClass
    1.73 +    public static void setUpClass() throws Exception {
    1.74 +        ScriptEngineManager sem = new ScriptEngineManager();
    1.75 +        final ScriptEngine eng = sem.getEngineByMimeType("text/javascript");
    1.76 +        
    1.77 +        final URL my = JsClassLoaderTest.class.getProtectionDomain().getCodeSource().getLocation();
    1.78 +        ClassLoader parent = JsClassLoaderTest.class.getClassLoader().getParent();
    1.79 +        final URLClassLoader ul = new URLClassLoader(new URL[] { my }, parent);
    1.80 +        class MyCL extends JsClassLoader implements Fn.Presenter {
    1.81 +
    1.82 +            public MyCL(ClassLoader parent) {
    1.83 +                super(parent);
    1.84 +            }
    1.85 +            
    1.86 +            @Override
    1.87 +            protected URL findResource(String name) {
    1.88 +                return ul.getResource(name);
    1.89 +            }
    1.90 +            @Override
    1.91 +            public Fn defineFn(String code, String... names) {
    1.92 +                StringBuilder sb = new StringBuilder();
    1.93 +                sb.append("(function() {");
    1.94 +                sb.append("return function(");
    1.95 +                String sep = "";
    1.96 +                for (String n : names) {
    1.97 +                    sb.append(sep);
    1.98 +                    sb.append(n);
    1.99 +                    sep = ", ";
   1.100 +                }
   1.101 +                sb.append(") {");
   1.102 +                sb.append(code);
   1.103 +                sb.append("};");
   1.104 +                sb.append("})()");
   1.105 +                try {
   1.106 +                    final Object val = eng.eval(sb.toString());
   1.107 +                    return new Fn(this) {
   1.108 +                        @Override
   1.109 +                        public Object invoke(Object thiz, Object... args) throws Exception {
   1.110 +                            List<Object> all = new ArrayList<Object>(args.length + 1);
   1.111 +                            all.add(thiz == null ? val : thiz);
   1.112 +                            all.addAll(Arrays.asList(args));
   1.113 +                            Invocable inv = (Invocable)eng;
   1.114 +                            try {
   1.115 +                                Object ret = inv.invokeMethod(val, "call", all.toArray());
   1.116 +                                return val.equals(ret) ? null : ret;
   1.117 +                            } catch (Exception ex) {
   1.118 +                                throw ex;
   1.119 +                            }
   1.120 +                        }
   1.121 +                    };
   1.122 +                } catch (ScriptException ex) {
   1.123 +                    throw new LinkageError("Can't parse: " + sb, ex);
   1.124 +                }
   1.125 +            }
   1.126 +
   1.127 +            @Override
   1.128 +            protected Enumeration<URL> findResources(String name) {
   1.129 +                throw new UnsupportedOperationException();
   1.130 +            }
   1.131 +
   1.132 +            @Override
   1.133 +            public void loadScript(Reader code) throws ScriptException {
   1.134 +                eng.eval(code);
   1.135 +            }
   1.136 +
   1.137 +            @Override
   1.138 +            public void displayPage(URL page, Runnable onPageLoad) {
   1.139 +                throw new UnsupportedOperationException();
   1.140 +            }
   1.141 +        };
   1.142 +        
   1.143 +        MyCL l = new MyCL(parent);
   1.144 +        Closeable close = FnContext.activate(l);
   1.145 +        methodClass = l.loadClass(JsMethods.class.getName());
   1.146 +        close.close();
   1.147 +        loader = l;
   1.148 +    }
   1.149 +    
   1.150 +    @BeforeMethod public void initPresenter() {
   1.151 +        FnContext.currentPresenter(loader);
   1.152 +    }
   1.153 +
   1.154 +    @AfterClass
   1.155 +    public static void cleanUp() {
   1.156 +        methodClass = null;
   1.157 +    }
   1.158 +}
   1.159 \ No newline at end of file