Examples of org.mozilla.javascript.ImporterTopLevel

org.mozilla.javascript.ImporterTopLevel
Class ImporterTopLevel This class defines a ScriptableObject that can be instantiated as a top-level ("global") object to provide functionality similar to Java's "import" statement.
This class can be used to create a top-level scope using the following code:
```
 Scriptable scope = new ImporterTopLevel(cx); 
```
Then JavaScript code will have access to the following methods:
- importClass - will "import" a class by making its unqualified name available as a property of the top-level scope
- importPackage - will "import" all the classes of the package by searching for unqualified names as classes qualified by the given package.
The following code from the shell illustrates this use:
```
 js> importClass(java.io.File) js> f=new File('help.txt') help.txt js> importPackage(java.util) js> v = new Vector() []
@author Norris Boyd
```


            final Context rhinoContext = Context.enter();
            try {


                Scriptable tmpScope = rhinoContext.initStandardObjects(
                    new ImporterTopLevel(), false);


                // default classes
                addHostObjects(tmpScope,
                    (Class<? extends ScriptableObject>[]) HOSTOBJECT_CLASSES);

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                scope = ScriptRuntime.getTopCallScope(rhinoContext);


            } else {
                // create the request top scope, use the ImporterToplevel here
                // to support the importPackage and importClasses functions
                scope = new ImporterTopLevel();


                // Set the global scope to be our prototype
                scope.setPrototype(rootScope);


                // We want "scope" to be a new top-level scope, so set its

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        protected SlingWrapFactory wrapFactory;


        @Override
        public ScriptEngine getScriptEngine() {
            final Context rhinoContext = Context.enter();
            Scriptable scope = rhinoContext.initStandardObjects(new ImporterTopLevel(), false);
            return new RhinoJavaScriptEngine(this, scope);
        }

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        try {


            // init std object with an importer
            // building the importer automatically initialize the
            // context with it since Rhino1.5R3
            ImporterTopLevel importer = new ImporterTopLevel(ctx);
            globalObject = importer;
            // import Java lang package & DOM Level 2 & SVG DOM packages
            NativeJavaPackage[] p= new NativeJavaPackage[TO_BE_IMPORTED.length];
            for (int i = 0; i < TO_BE_IMPORTED.length; i++) {
                p[i] = new NativeJavaPackage(TO_BE_IMPORTED[i]);
            }
            importer.importPackage(ctx, globalObject, p, null);
            ctx.setWrapHandler(wrapHandler);
        } finally {
            Context.exit();
        }
    }

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        try {
            
            if (cl != null) {
               cx.setApplicationClassLoader(cl);
            }
            this.scriptScope = new ImporterTopLevel( cx, true );
            Script compiledScript = cx.compileString(scriptCode, fileName, 1, null);
            compiledScript.exec(cx, scriptScope);
            addContexts(scriptScope, context);


        } finally {

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    @Override
    public Object evaluate(String script, String filename, Map<String, Object> args)
            throws ScriptException, Throwable {
        RhinoContextFactory factory = new RhinoContextFactory(timeLimit);
        Context cx = factory.enterContext();
        ScriptableObject scriptable = new ImporterTopLevel(cx);
        Scriptable scope = cx.initStandardObjects(scriptable);


        for (Map.Entry<String, Object> entry : args.entrySet()) {
            ScriptableObject.putProperty(scope, entry.getKey(),
                    Context.javaToJS(entry.getValue(), scope));

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            return new RhinoScriptEngineFactory();
        }
    }


    private Scriptable setupScope(Context cx, ScriptContext context) {
        ScriptableObject scriptable = new ImporterTopLevel(cx);
        Scriptable scope = cx.initStandardObjects(scriptable);
        //ScriptableObject.putProperty(scope, "argv", Context.javaToJS(args, scope));
        return scope;
    }

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        Context ctx = Context.enter();
        try {
            // init std object with an importer
            // building the importer automatically initialize the
            // context with it since Rhino1.5R3
            ImporterTopLevel importer = new ImporterTopLevel(ctx);
            globalObject = importer;
            // import Java lang package & DOM Level 2 & SVG DOM packages
            NativeJavaPackage[] p= new NativeJavaPackage[TO_BE_IMPORTED.length];
            for (int i = 0; i < TO_BE_IMPORTED.length; i++) {
                p[i] = new NativeJavaPackage(TO_BE_IMPORTED[i]);
            }
            importer.importPackage(ctx, globalObject, p, null);
            ctx.setWrapHandler(wrapHandler);
        } finally {
            Context.exit();
        }
    }

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                /* The ImporterTopLevel ensures that importClass and
                   importPackage statements work in Javascript scripts
                   Make the XScriptContext available as a global variable
                   to the script
                 */
                ImporterTopLevel scope = new ImporterTopLevel(ctxt);


                Scriptable jsCtxt = Context.toObject(
                   ScriptContext.createContext(
                       m_xModel, m_xInvocContext, m_xContext,
                       m_xMultiComponentFactory), scope);
                scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


                Scriptable jsArgs = Context.toObject(params, scope);
                scope.put("ARGUMENTS", scope, jsArgs);


                result = ctxt.evaluateString(scope,
                        source, "<stdin>", 1, null);
                result = ctxt.toString(result);
        return result;

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    }
    private Scriptable getScope(XScriptContext xsctxt ) 
    {
        Context ctxt = Context.enter();
        ImporterTopLevel scope = new ImporterTopLevel(ctxt);


        Scriptable jsCtxt = Context.toObject(xsctxt, scope);
        scope.put("XSCRIPTCONTEXT", scope, jsCtxt);


        Scriptable jsArgs = Context.toObject(
           new Object[0], scope);
        scope.put("ARGUMENTS", scope, jsArgs);


        Context.exit();
        return scope;
    }

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