List of usage examples for javax.script ScriptEngine eval
public Object eval(Reader reader, Bindings n) throws ScriptException;
eval(String, Bindings) except that the source of the script is provided as a Reader. From source file:com.aionemu.commons.scripting.AionScriptEngineManager.java
public Object eval(ScriptEngine engine, String script, ScriptContext context) throws ScriptException { if (engine instanceof Compilable && ATTEMPT_COMPILATION) { Compilable eng = (Compilable) engine; CompiledScript cs = eng.compile(script); return context != null ? cs.eval(context) : cs.eval(); }//from www . jav a 2s . c o m return context != null ? engine.eval(script, context) : engine.eval(script); }
From source file:org.jahia.modules.portal.filter.JCRRestJavaScriptLibFilter.java
@Override public String execute(String previousOut, RenderContext renderContext, Resource resource, RenderChain chain) throws Exception { String out = previousOut;// w ww .j a va 2 s . co m String context = StringUtils.isNotEmpty(renderContext.getRequest().getContextPath()) ? renderContext.getRequest().getContextPath() : ""; // add lib String path = context + "/modules/" + renderContext.getMainResource().getNode().getPrimaryNodeType() .getTemplatePackage().getBundle().getSymbolicName() + "/javascript/" + JCR_REST_JS_FILE; String encodedPath = URLEncoder.encode(path, "UTF-8"); out += ("<jahia:resource type='javascript' path='" + encodedPath + "' insert='true' resource='" + JCR_REST_JS_FILE + "'/>"); // instance JavaScript object String script = getResolvedTemplate(); if (script != null) { String extension = StringUtils.substringAfterLast(JCR_REST_SCRIPT_TEMPLATE, "."); ScriptEngine scriptEngine = scriptEngineUtils.scriptEngine(extension); ScriptContext scriptContext = new JCRRestUtilsScriptContext(); final Bindings bindings = scriptEngine.createBindings(); // bindings bindings.put("options", getBindingMap(renderContext, resource, context)); scriptContext.setBindings(bindings, ScriptContext.GLOBAL_SCOPE); // The following binding is necessary for Javascript, which doesn't offer a console by default. bindings.put("out", new PrintWriter(scriptContext.getWriter())); scriptEngine.eval(script, scriptContext); StringWriter writer = (StringWriter) scriptContext.getWriter(); final String resultScript = writer.toString(); if (StringUtils.isNotBlank(resultScript)) { out += ("<jahia:resource type='inlinejavascript' path='" + URLEncoder.encode(resultScript, "UTF-8") + "' insert='false' resource='' title='' key=''/>"); } } return out; }
From source file:org.jtotus.network.NordnetConnect.java
public String fetchEncryptedPassword(String encryptJS, String pass, String pubKey, String sessionId) { String password = null;/*w w w.ja v a 2 s .c o m*/ StartUpLoader loader = StartUpLoader.getInstance(); //ScriptEngineManager mgr = loader.getLoadedScriptManager(); // Bindings bindings = mgr.getBindings(); ScriptEngine engine = loader.getLoadedEngine(); Bindings bindings = engine.getBindings(ScriptContext.GLOBAL_SCOPE); try { StringBuilder strBuild = new StringBuilder(); strBuild.append(encryptJS); strBuild.append(" \n var keyObj = RSA.getPublicKey(\'" + pubKey + "\');\n" + " var encryptedPass = RSA.encrypt(\'" + pass + "\', keyObj, \'" + sessionId + "\');\n"); engine.eval(strBuild.toString(), bindings); password = (String) bindings.get("encryptedPass"); } catch (ScriptException ex) { Logger.getLogger(NordnetConnector.class.getName()).log(Level.SEVERE, null, ex); } log.info("JavaScript engine loaded:" + engine.NAME); return password; }
From source file:org.nuxeo.ecm.webengine.scripting.Scripting.java
protected Object _runScript(ScriptFile script, Map<String, Object> args) throws Exception { SimpleBindings bindings = new SimpleBindings(); if (args != null) { bindings.putAll(args);/*from w w w . ja v a 2 s. c om*/ } String ext = script.getExtension(); // check for a script engine ScriptEngine engine = getEngineManager().getEngineByExtension(ext); if (engine != null) { ScriptContext ctx = new SimpleScriptContext(); ctx.setBindings(bindings, ScriptContext.ENGINE_SCOPE); CompiledScript comp = getCompiledScript(engine, script.getFile()); // use cache for compiled scripts if (comp != null) { return comp.eval(ctx); } // compilation not supported - eval it on the fly try { Reader reader = new FileReader(script.getFile()); try { // TODO use __result__ to pass return value for engine that doesn't returns like jython Object result = engine.eval(reader, ctx); if (result == null) { result = bindings.get("__result__"); } return result; } finally { reader.close(); } } catch (IOException e) { throw new ScriptException(e); } } return null; }
From source file:it.greenvulcano.script.impl.ScriptExecutorImpl.java
/** * Initialize the instance./* ww w. jav a 2s. c o m*/ * * @param lang * script engine language * @param script * the script to configure; if null the script must be passes in the execute method; overridden by 'file' * @param file * if not null, defines the script file to read * @param bcName * defines the BaseContext to be used to enrich the script; * if null is used the default context for the given language, if defined * @throws GVScriptException */ public void init(String lang, String script, String file, String bcName) throws GVScriptException { try { this.lang = lang; if ((file != null) && !"".equals(file)) { this.script = cache.getScript(file); } else { this.script = script; if ((this.script == null) || "".equals(this.script)) { externalScript = true; } } if (!externalScript && ((this.script == null) || "".equals(this.script))) { throw new GVScriptException("Empty configured script!"); } ScriptEngine engine = getScriptEngine(lang); if (engine == null) { throw new GVScriptException("ScriptEngine[" + this.lang + "] not found!"); } bindings = engine.createBindings(); String baseContext = BaseContextManager.instance().getBaseContextScript(lang, bcName); if (baseContext != null) { this.script = baseContext + "\n\n" + (this.script != null ? this.script : ""); if (externalScript) { engine.eval(this.script, bindings); } } else if (bcName != null) { throw new GVScriptException("BaseContext[" + this.lang + "/" + bcName + "] not found!"); } if (engine instanceof Compilable && PropertiesHandler.isExpanded(script)) { String scriptKey = DigestUtils.sha256Hex(script); Optional<CompiledScript> cachedCompiledScript = cache.getCompiledScript(scriptKey); if (cachedCompiledScript.isPresent()) { compScript = cachedCompiledScript.get(); } else { logger.debug("Static script[" + lang + "], can be compiled for performance"); compScript = ((Compilable) engine).compile(script); cache.putCompiledScript(scriptKey, compScript); } } initialized = true; } catch (GVScriptException exc) { logger.error("Error initializing ScriptExecutorImpl", exc); throw exc; } catch (Exception exc) { logger.error("Error initializing ScriptExecutorImpl", exc); throw new GVScriptException("Error initializing ScriptExecutorImpl", exc); } }
From source file:org.archive.crawler.framework.ActionDirectory.java
/** * Try the actionFile as a script, deducing the proper scripting * language from its file extension. Return true if evaluation was * tried with a known script engine. /* w ww . j a v a 2s . c om*/ * * Provides 'appCtx' and 'rawOut' to script for accessing crawl * and outputting text to a '.out' file paired with the 'done/' * action file. If an exception occurs, it will be logged to an * '.ex' file alongside the script file in 'done/'. * * @param actionFile file to try * @param timestamp timestamp correlating out/ex files with done script * @return true if engine evaluation began (even if an error occurred) */ protected boolean tryAsScript(File actionFile, String timestamp) { int i = actionFile.getName().lastIndexOf("."); if (i < 0) { return false; } // deduce language/engine from extension String extension = actionFile.getName().substring(i + 1); ScriptEngine engine = MANAGER.getEngineByExtension(extension); if (engine == null) { return false; } // prepare engine StringWriter rawString = new StringWriter(); PrintWriter rawOut = new PrintWriter(rawString); Exception ex = null; Bindings bindings = new BeanLookupBindings(appCtx); bindings.put("rawOut", rawOut); bindings.put("appCtx", appCtx); // evaluate and record any exception try { String script = FileUtils.readFileToString(actionFile); engine.eval(script, bindings); } catch (IOException e) { ex = e; } catch (ScriptException e) { ex = e; } catch (RuntimeException e) { ex = e; } finally { // the script could create an object that persists and retains a reference to the Bindings bindings.put("rawOut", null); bindings.put("appCtx", null); } // report output/exception to files paired with script in done dir rawOut.flush(); String allOut = rawString.toString(); if (StringUtils.isNotBlank(allOut)) { File outFile = new File(doneDir.getFile(), timestamp + "." + actionFile.getName() + ".out"); try { FileUtils.writeStringToFile(outFile, rawString.toString()); } catch (IOException ioe) { LOGGER.log(Level.SEVERE, "problem during action file: " + actionFile, ioe); } } if (ex != null) { File exFile = new File(doneDir.getFile(), timestamp + "." + actionFile.getName() + ".exception"); try { FileUtils.writeStringToFile(exFile, ex.toString()); } catch (IOException ioe) { LOGGER.log(Level.SEVERE, "problem during action file: " + actionFile, ioe); } } return true; }
From source file:org.trafodion.rest.script.ScriptManager.java
public void runScript(ScriptContext ctx) { String scriptName;//from w ww.j ava 2s.c om if (ctx.getScriptName().length() == 0) scriptName = DEFAULT_SCRIPT_NAME; else if (!ctx.getScriptName().endsWith(".py")) scriptName = ctx.getScriptName() + PYTHON_SUFFIX; else scriptName = ctx.getScriptName(); try { ScriptEngine engine = manager.getEngineByName("python"); Bindings bindings = engine.createBindings(); bindings.put("scriptcontext", ctx); if (engine instanceof Compilable) { CompiledScript script = m.get(scriptName); if (script == null) { LOG.info("Compiling script " + scriptName); Compilable compilingEngine = (Compilable) engine; try { script = compilingEngine.compile(new FileReader(restHome + "/bin/scripts/" + scriptName)); } catch (Exception e) { LOG.warn(e.getMessage()); } m.put(scriptName, script); } script.eval(bindings); } else { try { engine.eval(new FileReader(restHome + "/bin/scripts/" + scriptName), bindings); } catch (Exception e) { LOG.warn(e.getMessage()); } } } catch (javax.script.ScriptException se) { LOG.warn(se.getMessage()); } }
From source file:org.apache.tinkerpop.gremlin.groovy.jsr223.GremlinGroovyScriptEngineOverGraphTest.java
@Test @LoadGraphWith(LoadGraphWith.GraphData.MODERN) public void shouldBeThreadSafe() throws Exception { final ScriptEngine engine = new GremlinGroovyScriptEngine(); int runs = 500; final CountDownLatch latch = new CountDownLatch(runs); final List<String> names = Arrays.asList("marko", "peter", "josh", "vadas", "stephen", "pavel", "matthias"); final Random random = new Random(); for (int i = 0; i < runs; i++) { new Thread("test-thread-safe-" + i) { public void run() { String name = names.get(random.nextInt(names.size() - 1)); try { final Bindings bindings = engine.createBindings(); bindings.put("g", g); bindings.put("name", name); final Object result = engine .eval("t = g.V().has('name',name); if(t.hasNext()) { t } else { null }", bindings); if (name.equals("stephen") || name.equals("pavel") || name.equals("matthias")) assertNull(result); else assertNotNull(result); } catch (ScriptException e) { assertFalse(true);/*from ww w. j av a 2 s. co m*/ } finally { if (graph.features().graph().supportsTransactions()) g.tx().rollback(); } latch.countDown(); } }.start(); } latch.await(); }
From source file:org.jahia.modules.irclogs.filters.IRCLogPageTitleFilter.java
@Override public String execute(String previousOut, RenderContext renderContext, Resource resource, RenderChain chain) throws Exception { String out = previousOut;/*from ww w . ja v a 2 s. com*/ String script = getResolvedTemplate(); if (script != null) { Source source = new Source(previousOut); OutputDocument outputDocument = new OutputDocument(source); List<Element> headElementList = source.getAllElements(HTMLElementName.TITLE); for (Element element : headElementList) { final EndTag bodyEndTag = element.getEndTag(); final StartTag bodyStartTag = element.getStartTag(); String extension = StringUtils.substringAfterLast(template, "."); ScriptEngine scriptEngine = scriptEngineUtils.scriptEngine(extension); ScriptContext scriptContext = new irclogsScriptContext(); final Bindings bindings = scriptEngine.createBindings(); bindings.put("resource", resource); scriptContext.setBindings(bindings, ScriptContext.GLOBAL_SCOPE); // The following binding is necessary for Javascript, which doesn't offer a console by default. bindings.put("out", new PrintWriter(scriptContext.getWriter())); // Parameters needed for title replacing bindings.put("orgTitle", outputDocument.toString().substring(bodyStartTag.getEnd(), bodyEndTag.getBegin())); bindings.put("dateFormatter", dateFormatter); bindings.put("title", getTitle()); bindings.put("renderContext", renderContext); scriptEngine.eval(script, scriptContext); StringWriter writer = (StringWriter) scriptContext.getWriter(); final String irclogsScript = writer.toString(); if (StringUtils.isNotBlank(irclogsScript)) { outputDocument.replace(bodyStartTag.getEnd(), bodyEndTag.getBegin() + 1, AggregateCacheFilter.removeEsiTags(irclogsScript) + "<"); } break; // avoid to loop if for any reasons multiple body in the page } out = outputDocument.toString().trim(); } return out; }