Example usage for jdk.nashorn.internal.runtime Context getGlobal

List of usage examples for jdk.nashorn.internal.runtime Context getGlobal

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Introduction

In this page you can find the example usage for jdk.nashorn.internal.runtime Context getGlobal.

Prototype

public static Global getGlobal()

Source Link

Document

Get the current global scope

Usage

From source file:com.threecrickets.jvm.json.nashorn.ScriptObjectMirrorEncoder.java

License:Mozilla Public License

public void encode(Object object, JsonContext context) throws IOException {
    ScriptObjectMirror scriptObjectMirror = (ScriptObjectMirror) object;

    Object wrapped = ScriptObjectMirror.unwrap(scriptObjectMirror, Context.getGlobal());
    if (!(wrapped instanceof ScriptObjectMirror)) {
        context.encode(wrapped);/*from w  w w  .j ava 2s .c o  m*/
        return;
    }

    if (scriptObjectMirror.isArray()) {
        context.out.append('[');

        int length = scriptObjectMirror.size();
        if (length > 0) {
            context.newline();

            for (int i = 0; i < length; i++) {
                Object value = scriptObjectMirror.getSlot(i);

                context.indentNested();
                context.nest().encode(value);

                if (i < length - 1)
                    context.comma();
            }

            context.newline();
            context.indent();
        }

        context.out.append(']');
    } else {
        context.out.append('{');

        String[] keys = scriptObjectMirror.getOwnKeys(true);
        int length = keys.length;
        if (length > 0) {
            context.newline();

            for (int i = 0; i < length; i++) {
                String key = keys[i];
                Object value = scriptObjectMirror.get(key);

                context.indentNested();
                context.quoted(key);
                context.colon();
                context.nest().encode(value);

                if (i < length - 1)
                    context.comma();
            }

            context.newline();
            context.indent();
        }

        context.out.append('}');
    }
}

From source file:com.threecrickets.jvm.json.nashorn.ScriptObjectMirrorTransformer.java

License:Mozilla Public License

public Object transform(Object object, JsonImplementation implementation) {
    if (object instanceof ScriptObjectMirror) {
        ScriptObjectMirror scriptObjectMirror = (ScriptObjectMirror) object;

        Object wrapped = ScriptObjectMirror.unwrap(scriptObjectMirror, Context.getGlobal());
        if (!(wrapped instanceof ScriptObjectMirror)) {
            for (JsonTransformer transformer : implementation.getTransformers()) {
                Object r = transformer.transform(wrapped, implementation);
                if (r != null)
                    return r;
            }//from   w  w w .ja va  2 s  . c o m
        }
    }

    return null;
}

From source file:com.threecrickets.jvm.json.nashorn.util.NashornNativeUtil.java

License:Mozilla Public License

public static Object unwrap(Object object) {
    // Nashorn creates these mirrors when they pass through certain
    // boundaries. However, we are only allowed to unwrap them from the same
    // global context in which they were wrapped. We will try to unwrap them
    // here, but if that doesn't work we will just create a shallow clone.
    // The clone won't function like the original, but will be good enough
    // for our purposes here.

    object = ScriptObjectMirror.unwrap(object, Context.getGlobal());
    if (object instanceof ScriptObjectMirror) {
        ScriptObjectMirror scriptObjectMirror = (ScriptObjectMirror) object;
        ScriptObject scriptObject = NashornNativeUtil.newObject();
        for (String key : scriptObjectMirror.getOwnKeys(true)) {
            Object value = scriptObjectMirror.get(key);
            scriptObject.put(key, value, false);
        }//from  w w  w.  j av  a2  s . com
        object = scriptObject;
    }
    return object;
}

From source file:com.threecrickets.scripturian.adapter.NashornAdapter.java

License:LGPL

@Override
public Object enter(String entryPointName, Executable executable, ExecutionContext executionContext,
        Object... arguments) throws NoSuchMethodException, ParsingException, ExecutionException {
    ScriptObject oldGlobal = Context.getGlobal();
    try {//from   ww w.  j a  v a  2  s.  co  m
        ScriptObject globalScope = getGlobalScope(executionContext);

        Object entryPoint = globalScope.get(entryPointName);
        if (!(entryPoint instanceof ScriptFunction))
            throw new NoSuchMethodException(entryPointName);

        try {
            ScriptFunction function = (ScriptFunction) entryPoint;
            Object r = ScriptRuntime.apply(function, null, arguments);
            if (r instanceof NativeArray)
                r = NativeJava.to(null, r, "java.util.List");
            return r;
        } catch (ClassNotFoundException x) {
            throw new ExecutionException(executable.getDocumentName(), x);
        } catch (Throwable x) {
            throw createExecutionException(x, executable.getDocumentName());
        } finally {
            context.getOut().flush();
            context.getErr().flush();
        }
    } finally {
        if (oldGlobal != null)
            Context.setGlobal(oldGlobal);
    }
}

From source file:com.threecrickets.scripturian.adapter.NashornProgram.java

License:LGPL

public void execute(ExecutionContext executionContext) throws ParsingException, ExecutionException {
    ScriptObject oldGlobal = Context.getGlobal();
    try {/*from ww  w  .j  a  v  a2 s  .  com*/
        ScriptObject globalScope = adapter.getGlobalScope(executionContext);
        ErrorManager errorManager = adapter.context.getErrorManager();

        // long s = System.currentTimeMillis();
        ScriptFunction script = adapter.context
                .compileScript(Source.sourceFor(executable.getDocumentName(), sourceCode), globalScope);
        if ((script == null) || errorManager.hasErrors())
            throw new ParsingException(executable.getDocumentName());
        // s = System.currentTimeMillis() - s;
        // System.out.println( "COMPILE: " + s / 1000.0f );

        try {
            // s = System.currentTimeMillis();
            ScriptRuntime.apply(script, globalScope);
            // s = System.currentTimeMillis() - s;
            // System.out.println( "RUN: " + s / 1000.0f );
        } catch (Throwable x) {
            throw NashornAdapter.createExecutionException(x, executable.getDocumentName());
        } finally {
            adapter.context.getOut().flush();
            adapter.context.getErr().flush();
        }
    } finally {
        if (oldGlobal != null)
            Context.setGlobal(oldGlobal);
    }
}

From source file:io.stallion.plugins.javascript.JavascriptShell.java

License:Open Source License

private static int readEvalPrint(InputStream input, OutputStream out, Context context, Global global)
        throws IOException, ScriptException {
    JsPluginSettings pluginSettings = new JsPluginSettings();

    //context.eval(global, "");

    //Global global = context.createGlobal();
    //ScriptEnvironment env = context.getEnv();

    String prompt = bundle.getString("shell.prompt");
    //BufferedReader in = new BufferedReader(new InputStreamReader(input));
    ConsoleReader in = new ConsoleReader();
    PrintWriter err = context.getErr();
    Global oldGlobal = Context.getGlobal();
    boolean globalChanged = oldGlobal != global;
    ScriptEnvironment env = context.getEnv();

    if (DB.available()) {
        global.put("DB", DB.instance(), false);
    }/*w  ww  .j  ava 2  s. c o  m*/

    try {
        if (globalChanged) {
            Context.setGlobal(global);
        }

        global.addShellBuiltins();

        // Load builtins
        global.put("javaToJsHelpers", new JavaToJsHelpers(Sandbox.allPermissions()), true);
        SandboxedContext ctx = new SandboxedContext(Settings.instance().getTargetFolder() + "/js",
                Sandbox.allPermissions(), pluginSettings);
        global.put("myContext", ctx, true);

        String stallionSharedJs = IOUtils
                .toString(JavascriptShell.class.getResource("/jslib/stallion_shared.js"), UTF8);
        context.eval(global,
                "load(" + JSON.stringify(
                        map(val("script", stallionSharedJs), val("name", "stallion_shared.js"))) + ");",
                global, "<shellboot>");
        global.put("stallionClassLoader", new UnrestrictedJsClassLoader(), true);

        while (true) {
            String source;
            do {
                //err.print(prompt);
                //err.flush();
                source = "";

                try {
                    source = in.readLine(prompt);
                } catch (IOException var14) {
                    err.println(var14.toString());
                }

                if (source == null) {
                    return 0;
                }
            } while (source.isEmpty());

            try {
                Object e = context.eval(global, source, global, "<shell>");
                if (e != ScriptRuntime.UNDEFINED) {
                    err.println(JSType.toString(e));
                }
            } catch (Exception var15) {
                err.println(var15);
                if (env._dump_on_error) {
                    var15.printStackTrace(err);
                }
            }
        }
    } finally {
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }

    }
}

From source file:org.bson.jvm.nashorn.ScriptObjectMirrorCodec.java

License:Apache License

@SuppressWarnings("unchecked")
public void encode(BsonWriter writer, ScriptObjectMirror scriptObjectMirror, EncoderContext encoderContext) {
    Object wrapped = ScriptObjectMirror.unwrap(scriptObjectMirror, Context.getGlobal());
    if (!(wrapped instanceof ScriptObjectMirror)) {
        // Attempt to encode the wrapped object
        Codec<Object> codec = null;
        try {//from  w  w w  . j  a v  a 2s .  c  om
            codec = (Codec<Object>) codecRegistry.get(wrapped.getClass());
        } catch (CodecConfigurationException x) {
        }
        if (codec != null) {
            codec.encode(writer, wrapped, encoderContext);
            return;
        }
    }

    if (scriptObjectMirror.isArray()) {
        writer.writeStartArray();
        for (int i = 0, length = scriptObjectMirror.size(); i < length; i++) {
            Object item = scriptObjectMirror.getSlot(i);
            BsonUtil.writeChild(item, writer, encoderContext, codecRegistry);
        }
        writer.writeEndArray();
    } else {
        writer.writeStartDocument();
        for (String key : scriptObjectMirror.getOwnKeys(true)) {
            Object value = scriptObjectMirror.get(key);
            writer.writeName(key);
            BsonUtil.writeChild(value, writer, encoderContext, codecRegistry);
        }
        writer.writeEndDocument();
    }
}

From source file:org.kihara.util.JavascriptEngine.java

License:Open Source License

/**
 * Compiles the given script files in the command line
 *
 * @param context the nashorn context//w w w.j  av a2 s. c o m
 * @param global the global scope
 * @param files the list of script files to compile
 *
 * @return error code
 * @throws IOException when any script file read results in I/O error
 */
private static int compileScripts(final Context context, final ScriptObject global, final List<String> files)
        throws IOException {
    final ScriptObject oldGlobal = Context.getGlobal();
    final boolean globalChanged = (oldGlobal != global);
    final ScriptEnvironment env = context.getEnv();
    try {
        if (globalChanged) {
            Context.setGlobal(global);
        }
        final ErrorManager errors = context.getErrorManager();

        // For each file on the command line.
        for (final String fileName : files) {
            final FunctionNode functionNode = new Parser(env, Source.sourceFor(fileName, new File(fileName)),
                    errors, env._strict, 0, context.getLogger(Parser.class)).parse();

            if (errors.getNumberOfErrors() != 0) {
                return COMPILATION_ERROR;
            }

            new Compiler(context, env, null, //null - pass no code installer - this is compile only
                    functionNode.getSource(), context.getErrorManager(), env._strict | functionNode.isStrict())
                            .compile(functionNode, Compiler.CompilationPhases.COMPILE_ALL_NO_INSTALL); //*/

            /*
            Compiler.forNoInstallerCompilation(context,
                functionNode.getSource(),
                env._strict | functionNode.isStrict()).
                compile(functionNode, Compiler.CompilationPhases.COMPILE_ALL_NO_INSTALL);
            //*/

            if (env._print_ast) {
                context.getErr().println(new ASTWriter(functionNode));
            }

            if (env._print_parse) {
                context.getErr().println(new PrintVisitor(functionNode));
            }

            if (errors.getNumberOfErrors() != 0) {
                return COMPILATION_ERROR;
            }
        }
    } finally {
        env.getOut().flush();
        env.getErr().flush();
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return SUCCESS;
}

From source file:org.kihara.util.JavascriptEngine.java

License:Open Source License

/**
 * Runs the given JavaScript files in the command line
 *
 * @param context the nashorn context//from  www . j  a  va2s  . com
 * @param global the global scope
 * @param files the list of script files to run
 *
 * @return error code
 * @throws IOException when any script file read results in I/O error
 */
private int runScripts(final Context context, final ScriptObject global, final List<String> files)
        throws IOException {
    final ScriptObject oldGlobal = Context.getGlobal();
    final boolean globalChanged = (oldGlobal != global);
    try {
        if (globalChanged) {
            Context.setGlobal(global);
        }
        final ErrorManager errors = context.getErrorManager();

        // For each file on the command line.
        for (final String fileName : files) {
            if ("-".equals(fileName)) {
                final int res = readEvalPrint(context, global);
                if (res != SUCCESS) {
                    return res;
                }
                continue;
            }

            final File file = new File(fileName);
            final ScriptFunction script = context
                    .compileScript(Source.sourceFor(fileName, file.toURI().toURL()), global);
            if (script == null || errors.getNumberOfErrors() != 0) {
                return COMPILATION_ERROR;
            }

            try {
                apply(script, global);
            } catch (final NashornException e) {
                errors.error(e.toString());
                if (context.getEnv()._dump_on_error) {
                    e.printStackTrace(context.getErr());
                }

                return RUNTIME_ERROR;
            }
        }
    } finally {
        context.getOut().flush();
        context.getErr().flush();
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return SUCCESS;
}

From source file:org.kihara.util.JavascriptEngine.java

License:Open Source License

/**
 * Runs launches "fx:bootstrap.js" with the given JavaScript files provided
 * as arguments./*from   www .j  av a  2  s .c  om*/
 *
 * @param context the nashorn context
 * @param global the global scope
 * @param files the list of script files to provide
 *
 * @return error code
 * @throws IOException when any script file read results in I/O error
 */
private static int runFXScripts(final Context context, final ScriptObject global, final List<String> files)
        throws IOException {
    final ScriptObject oldGlobal = Context.getGlobal();
    final boolean globalChanged = (oldGlobal != global);
    try {
        if (globalChanged) {
            Context.setGlobal(global);
        }

        global.addOwnProperty("$GLOBAL", Property.NOT_ENUMERABLE, global);
        global.addOwnProperty("$SCRIPTS", Property.NOT_ENUMERABLE, files);
        context.load(global, "fx:bootstrap.js");
    } catch (final NashornException e) {
        context.getErrorManager().error(e.toString());
        if (context.getEnv()._dump_on_error) {
            e.printStackTrace(context.getErr());
        }

        return RUNTIME_ERROR;
    } finally {
        context.getOut().flush();
        context.getErr().flush();
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return SUCCESS;
}