Example usage for javax.script SimpleScriptContext SimpleScriptContext

List of usage examples for javax.script SimpleScriptContext SimpleScriptContext

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Introduction

In this page you can find the example usage for javax.script SimpleScriptContext SimpleScriptContext.

Prototype

public SimpleScriptContext()

Source Link

Document

Create a SimpleScriptContext .

Usage

From source file:org.openscore.lang.runtime.bindings.ScriptEvaluator.java

public Serializable evalExpr(String expr, Map<String, ? extends Serializable> context) {
    ScriptContext scriptContext = new SimpleScriptContext();
    for (Map.Entry<String, ? extends Serializable> entry : context.entrySet()) {
        scriptContext.setAttribute(entry.getKey(), entry.getValue(), ScriptContext.ENGINE_SCOPE);
    }// w  w  w .  j  av  a  2s.c o m
    if (scriptContext.getAttribute(TRUE) == null)
        scriptContext.setAttribute(TRUE, Boolean.TRUE, ScriptContext.ENGINE_SCOPE);
    if (scriptContext.getAttribute(FALSE) == null)
        scriptContext.setAttribute(FALSE, Boolean.FALSE, ScriptContext.ENGINE_SCOPE);
    try {
        return (Serializable) engine.eval(expr, scriptContext);
    } catch (ScriptException e) {
        ScriptException scriptException = new ScriptException(e);
        throw new RuntimeException("Error in running script expression or variable reference, for expression: '"
                + expr + "', Script exception is: \n" + scriptException.getMessage(), scriptException);
    }
}

From source file:io.lavagna.service.ApiHooksService.java

private static void executeScript(String name, CompiledScript script, Map<String, Object> scope) {
    try {//from  ww w.  ja v  a  2 s  . c  o m
        ScriptContext newContext = new SimpleScriptContext();
        Bindings engineScope = newContext.getBindings(ScriptContext.ENGINE_SCOPE);
        engineScope.putAll(scope);
        engineScope.put("log", LOG);
        engineScope.put("GSON", Json.GSON);
        engineScope.put("restTemplate", new RestTemplate());
        script.eval(newContext);
    } catch (ScriptException ex) {
        LOG.warn("Error while executing script " + name, ex);
    }
}

From source file:org.nuxeo.connect.connector.http.proxy.NashornProxyPacResolver.java

@Override
public String[] findPacProxies(String url) {
    ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
    ScriptContext context = new SimpleScriptContext();
    engine.setContext(context); // set as default context, for invokeFunctino
    SimpleBindings bindings = new SimpleBindings();
    context.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
    try {/*w ww . j av a  2  s  . c  o m*/
        // Register internet functions as Java upcalls
        engine.eval("var NashornProxyPacResolver = Java.type('" + getClass().getName() + "');"
                + "var dnsResolve = NashornProxyPacResolver.dnsResolve;"
                + "var myIpAddress = NashornProxyPacResolver.myIpAddress");
        // Register others pac methods
        engine.eval(getFileReader(PAC_FUNCTIONS_FILE));
        // Register remote pac function
        engine.eval(getRemotePacBodyReader());
        // Call and return pac resolution function
        String proxies = (String) ((Invocable) engine).invokeFunction(EXEC_PAC_FUNC, url, getHost(url));
        return proxies.split(";");
    } catch (IOException | ScriptException | NoSuchMethodException e) {
        log.warn(e, e);
    }
    return null;
}

From source file:be.solidx.hot.JSR223ScriptExecutor.java

@Override
public Object execute(Script<CompiledScript> script) throws ScriptException {
    try {//from w w  w.java  2 s  . c  om
        ScriptEngine scriptEngine = getEngine();
        CompiledScript compiledScript = getCachedScript(script);
        ScriptContext scriptContext = new SimpleScriptContext();
        executePreExecuteScripts(scriptContext);
        Object object = compiledScript.eval(scriptContext);
        if (object == null)
            return scriptEngine.getBindings(ScriptContext.ENGINE_SCOPE);
        return object;
    } catch (javax.script.ScriptException e) {
        throw new ScriptException(e);
    }
}

From source file:org.apache.sling.scripting.sightly.js.impl.JsEnvironment.java

public void runResource(Resource scriptResource, Bindings globalBindings, Bindings arguments,
        UnaryCallback callback) {/*from  w ww .  j a va  2s  .  co  m*/
    ScriptContext scriptContext = new SimpleScriptContext();
    CommonJsModule module = new CommonJsModule();
    Bindings scriptBindings = buildBindings(scriptResource, globalBindings, arguments, module);
    scriptContext.setBindings(scriptBindings, ScriptContext.ENGINE_SCOPE);
    scriptContext.setAttribute(ScriptEngine.FILENAME, scriptResource.getPath(), ScriptContext.ENGINE_SCOPE);
    runScript(scriptResource, scriptContext, callback, module);
}

From source file:be.solidx.hot.JSR223ScriptExecutor.java

@Override
public Object execute(Script<CompiledScript> script, Map<String, Object> contextVars) throws ScriptException {
    try {//from w w  w  .  ja  va 2 s . c om
        ScriptEngine scriptEngine = getEngine();
        Bindings bindings = scriptEngine.createBindings();
        ScriptContext scriptContext = new SimpleScriptContext();
        scriptContext.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
        bindings.putAll(contextVars);
        executePreExecuteScripts(scriptContext);
        CompiledScript compiledScript = getCachedScript(script);
        Object object = compiledScript.eval(scriptContext);
        if (object == null)
            return bindings;
        return object;
    } catch (javax.script.ScriptException e) {
        throw new ScriptException(e);
    }
}

From source file:org.apache.accumulo.shell.commands.ScriptCommand.java

@Override
public int execute(String fullCommand, CommandLine cl, Shell shellState) throws Exception {

    boolean invoke = false;
    ScriptEngineManager mgr = new ScriptEngineManager();

    if (cl.hasOption(list.getOpt())) {
        listJSREngineInfo(mgr, shellState);
    } else if (cl.hasOption(file.getOpt()) || cl.hasOption(script.getOpt())) {
        String engineName = DEFAULT_ENGINE;
        if (cl.hasOption(engine.getOpt())) {
            engineName = cl.getOptionValue(engine.getOpt());
        }//from w ww.j a v  a  2s . c  om
        ScriptEngine engine = mgr.getEngineByName(engineName);
        if (null == engine) {
            shellState.printException(new Exception(engineName + " not found"));
            return 1;
        }

        if (cl.hasOption(object.getOpt()) || cl.hasOption(function.getOpt())) {
            if (!(engine instanceof Invocable)) {
                shellState.printException(
                        new Exception(engineName + " does not support invoking functions or methods"));
                return 1;
            }
            invoke = true;
        }

        ScriptContext ctx = new SimpleScriptContext();

        // Put the following objects into the context so that they
        // are available to the scripts
        // TODO: What else should go in here?
        Bindings b = engine.getBindings(ScriptContext.ENGINE_SCOPE);
        b.put("connection", shellState.getConnector());

        List<Object> argValues = new ArrayList<Object>();
        if (cl.hasOption(args.getOpt())) {
            String[] argList = cl.getOptionValue(args.getOpt()).split(",");
            for (String arg : argList) {
                String[] parts = arg.split("=");
                if (parts.length == 0) {
                    continue;
                } else if (parts.length == 1) {
                    b.put(parts[0], null);
                    argValues.add(null);
                } else if (parts.length == 2) {
                    b.put(parts[0], parts[1]);
                    argValues.add(parts[1]);
                }
            }
        }
        ctx.setBindings(b, ScriptContext.ENGINE_SCOPE);
        Object[] argArray = argValues.toArray(new Object[argValues.size()]);

        Writer writer = null;
        if (cl.hasOption(out.getOpt())) {
            File f = new File(cl.getOptionValue(out.getOpt()));
            writer = new FileWriter(f);
            ctx.setWriter(writer);
        }

        if (cl.hasOption(file.getOpt())) {
            File f = new File(cl.getOptionValue(file.getOpt()));
            if (!f.exists()) {
                if (null != writer) {
                    writer.close();
                }
                shellState.printException(new Exception(f.getAbsolutePath() + " not found"));
                return 1;
            }
            Reader reader = new FileReader(f);
            try {
                engine.eval(reader, ctx);
                if (invoke) {
                    this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                }
            } catch (ScriptException ex) {
                shellState.printException(ex);
                return 1;
            } finally {
                reader.close();
                if (null != writer) {
                    writer.close();
                }
            }
        } else if (cl.hasOption(script.getOpt())) {
            String inlineScript = cl.getOptionValue(script.getOpt());
            try {
                if (engine instanceof Compilable) {
                    Compilable compiledEng = (Compilable) engine;
                    CompiledScript script = compiledEng.compile(inlineScript);
                    script.eval(ctx);
                    if (invoke) {
                        this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                    }
                } else {
                    engine.eval(inlineScript, ctx);
                    if (invoke) {
                        this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                    }
                }
            } catch (ScriptException ex) {
                shellState.printException(ex);
                return 1;
            } finally {
                if (null != writer) {
                    writer.close();
                }
            }
        }
        if (null != writer) {
            writer.close();
        }

    } else {
        printHelp(shellState);
    }
    return 0;
}

From source file:org.apache.accumulo.core.util.shell.commands.ScriptCommand.java

public int execute(String fullCommand, CommandLine cl, Shell shellState) throws Exception {

    boolean invoke = false;
    ScriptEngineManager mgr = new ScriptEngineManager();

    if (cl.hasOption(list.getOpt())) {
        listJSREngineInfo(mgr, shellState);
    } else if (cl.hasOption(file.getOpt()) || cl.hasOption(script.getOpt())) {
        String engineName = DEFAULT_ENGINE;
        if (cl.hasOption(engine.getOpt())) {
            engineName = cl.getOptionValue(engine.getOpt());
        }//from  w ww  .j  a va  2  s  .c o m
        ScriptEngine engine = mgr.getEngineByName(engineName);
        if (null == engine) {
            shellState.printException(new Exception(engineName + " not found"));
            return 1;
        }

        if (cl.hasOption(object.getOpt()) || cl.hasOption(function.getOpt())) {
            if (!(engine instanceof Invocable)) {
                shellState.printException(
                        new Exception(engineName + " does not support invoking functions or methods"));
                return 1;
            }
            invoke = true;
        }

        ScriptContext ctx = new SimpleScriptContext();

        // Put the following objects into the context so that they
        // are available to the scripts
        // TODO: What else should go in here?
        Bindings b = engine.getBindings(ScriptContext.ENGINE_SCOPE);
        b.put("connection", shellState.getConnector());

        List<Object> argValues = new ArrayList<Object>();
        if (cl.hasOption(args.getOpt())) {
            String[] argList = cl.getOptionValue(args.getOpt()).split(",");
            for (String arg : argList) {
                String[] parts = arg.split("=");
                if (parts.length == 0) {
                    continue;
                } else if (parts.length == 1) {
                    b.put(parts[0], null);
                    argValues.add(null);
                } else if (parts.length == 2) {
                    b.put(parts[0], parts[1]);
                    argValues.add(parts[1]);
                }
            }
        }
        ctx.setBindings(b, ScriptContext.ENGINE_SCOPE);
        Object[] argArray = argValues.toArray(new Object[argValues.size()]);

        Writer writer = null;
        if (cl.hasOption(out.getOpt())) {
            File f = new File(cl.getOptionValue(out.getOpt()));
            writer = new FileWriter(f);
            ctx.setWriter(writer);
        }

        if (cl.hasOption(file.getOpt())) {
            File f = new File(cl.getOptionValue(file.getOpt()));
            if (!f.exists()) {
                if (null != writer) {
                    writer.close();
                }
                shellState.printException(new Exception(f.getAbsolutePath() + " not found"));
                return 1;
            }
            Reader reader = new FileReader(f);
            try {
                engine.eval(reader, ctx);
                if (invoke) {
                    this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                }
            } catch (ScriptException ex) {
                shellState.printException(ex);
                return 1;
            } finally {
                reader.close();
                if (null != writer) {
                    writer.close();
                }
            }
        } else if (cl.hasOption(script.getOpt())) {
            String inlineScript = cl.getOptionValue(script.getOpt());
            try {
                if (engine instanceof Compilable) {
                    Compilable compiledEng = (Compilable) engine;
                    CompiledScript script = compiledEng.compile(inlineScript);
                    script.eval(ctx);
                    if (invoke) {
                        this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                    }
                } else {
                    engine.eval(inlineScript, ctx);
                    if (invoke) {
                        this.invokeFunctionOrMethod(shellState, engine, cl, argArray);
                    }
                }
            } catch (ScriptException ex) {
                shellState.printException(ex);
                return 1;
            } finally {
                if (null != writer) {
                    writer.close();
                }
            }
        }
        if (null != writer) {
            writer.close();
        }

    } else {
        printHelp(shellState);
    }
    return 0;
}

From source file:org.fireflow.engine.modules.script.ScriptEngineHelper.java

private static Object evaluateJSR233Expression(RuntimeContext rtCtx, Expression fireflowExpression,
        Map<String, Object> contextObjects) {
    ScriptEngine scriptEngine = rtCtx.getScriptEngine(fireflowExpression.getLanguage());

    ScriptContext scriptContext = new SimpleScriptContext();
    Bindings engineScope = scriptContext.getBindings(ScriptContext.ENGINE_SCOPE);
    engineScope.putAll(contextObjects);//ww w  .  java  2s.  c o m
    try {
        Object result = scriptEngine.eval(fireflowExpression.getBody(), scriptContext);
        return result;
    } catch (ScriptException e) {
        throw new RuntimeException("Can NOT evaluate the expression. ", e);
    }
}

From source file:org.jahia.services.render.scripting.JSR223Script.java

/**
 * Execute the script and return the result as a string
 *
 * @param resource resource to display//from  w  ww .ja v  a2  s  .c o  m
 * @param context
 * @return the rendered resource
 * @throws org.jahia.services.render.RenderException
 */
public String execute(Resource resource, RenderContext context) throws RenderException {
    ScriptEngine scriptEngine = null;

    ClassLoader tccl = Thread.currentThread().getContextClassLoader();
    Thread.currentThread().setContextClassLoader(view.getModule().getChainedClassLoader());

    try {
        scriptEngine = ScriptEngineUtils.getInstance().scriptEngine(view.getFileExtension());

        if (scriptEngine != null) {
            ScriptContext scriptContext = new SimpleScriptContext();
            final Bindings bindings = new SimpleBindings();
            Enumeration<?> attrNamesEnum = context.getRequest().getAttributeNames();
            while (attrNamesEnum.hasMoreElements()) {
                String currentAttributeName = (String) attrNamesEnum.nextElement();
                if (!"".equals(currentAttributeName)) {
                    bindings.put(currentAttributeName, context.getRequest().getAttribute(currentAttributeName));
                }
            }
            bindings.put("params", context.getRequest().getParameterMap());
            Reader scriptContent = null;
            try {
                InputStream scriptInputStream = getViewInputStream();
                if (scriptInputStream != null) {
                    scriptContent = new InputStreamReader(scriptInputStream);
                    scriptContext.setWriter(new StringWriter());
                    scriptContext.setErrorWriter(new StringWriter());
                    // The following binding is necessary for Javascript, which doesn't offer a console by default.
                    bindings.put("out", new PrintWriter(scriptContext.getWriter()));
                    scriptContext.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
                    scriptContext.setBindings(scriptEngine.getContext().getBindings(ScriptContext.GLOBAL_SCOPE),
                            ScriptContext.GLOBAL_SCOPE);

                    scriptEngine.eval(scriptContent, scriptContext);

                    StringWriter writer = (StringWriter) scriptContext.getWriter();
                    return writer.toString().trim();
                } else {
                    throw new RenderException(
                            "Error while retrieving input stream for the resource " + view.getPath());
                }
            } catch (ScriptException e) {
                throw new RenderException("Error while executing script " + view.getPath(), e);
            } catch (IOException e) {
                throw new RenderException(
                        "Error while retrieving input stream for the resource " + view.getPath(), e);
            } finally {
                if (scriptContent != null) {
                    IOUtils.closeQuietly(scriptContent);
                }
            }
        }

    } catch (ScriptException e) {
        logger.error(e.getMessage(), e);
    } finally {
        Thread.currentThread().setContextClassLoader(tccl);
    }

    return null;
}