Java Code Examples for javax.script.CompiledScript

The following examples show how to use javax.script.CompiledScript. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: TencentKona-8   Source File: ScopeTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
@Test
public void invokeFunctionWithCustomScriptContextTest() throws Exception {
    final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");

    // create an engine and a ScriptContext, but don't set it as default
    ScriptContext scriptContext = new SimpleScriptContext();

    // Set some value in the context
    scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);

    // Evaluate script with custom context and get back a function
    final String script = "function (c) { return myString.indexOf(c); }";
    CompiledScript compiledScript = ((Compilable)engine).compile(script);
    Object func = compiledScript.eval(scriptContext);

    // Invoked function should be able to see context it was evaluated with
    Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
    assertTrue(((Number)result).intValue() == 1);
}
 
Example 2
Source Project: jstarcraft-core   Source File: LuaFunction.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public <T> T doWith(Class<T> clazz, Object... arguments) {
    try {
        LuaHolder holder = threadHolder.get();
        for (int index = 0, size = classes.length; index < size; index++) {
            holder.attributes.put(StringUtility.format("argument{}", index), arguments[index]);
        }
        holder.attributes.putAll(holder.scope.getAttributes());
        CompiledScript script = holder.script;
        T object = (T) script.eval();
        holder.scope.deleteAttributes();
        return object;
    } catch (ScriptException exception) {
        throw new ScriptExpressionException(exception);
    }
}
 
Example 3
Source Project: openjdk-jdk9   Source File: ScopeTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
@Test
public void invokeFunctionWithCustomScriptContextTest() throws Exception {
    final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");

    // create an engine and a ScriptContext, but don't set it as default
    final ScriptContext scriptContext = new SimpleScriptContext();

    // Set some value in the context
    scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);

    // Evaluate script with custom context and get back a function
    final String script = "function (c) { return myString.indexOf(c); }";
    final CompiledScript compiledScript = ((Compilable)engine).compile(script);
    final Object func = compiledScript.eval(scriptContext);

    // Invoked function should be able to see context it was evaluated with
    final Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
    assertTrue(((Number)result).intValue() == 1);
}
 
Example 4
Source Project: openjdk-jdk8u   Source File: ScopeTest.java    License: GNU General Public License v2.0 6 votes vote down vote up
@Test
public void invokeFunctionWithCustomScriptContextTest() throws Exception {
    final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");

    // create an engine and a ScriptContext, but don't set it as default
    ScriptContext scriptContext = new SimpleScriptContext();

    // Set some value in the context
    scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);

    // Evaluate script with custom context and get back a function
    final String script = "function (c) { return myString.indexOf(c); }";
    CompiledScript compiledScript = ((Compilable)engine).compile(script);
    Object func = compiledScript.eval(scriptContext);

    // Invoked function should be able to see context it was evaluated with
    Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
    assertTrue(((Number)result).intValue() == 1);
}
 
Example 5
/** 取到script指定的identity */
private static List<String> script(AeiObjects aeiObjects) throws Exception {
	List<String> list = new ArrayList<>();
	if ((StringUtils.isNotEmpty(aeiObjects.getActivity().getReadScript()))
			|| (StringUtils.isNotEmpty(aeiObjects.getActivity().getReadScriptText()))) {
		ScriptContext scriptContext = aeiObjects.scriptContext();
		CompiledScript compiledScript = aeiObjects.business().element().getCompiledScript(
				aeiObjects.getWork().getApplication(), aeiObjects.getActivity(), Business.EVENT_READ);
		Object objectValue = compiledScript.eval(scriptContext);
		List<String> os = ScriptFactory.asDistinguishedNameList(objectValue);
		if (ListTools.isNotEmpty(os)) {
			list.addAll(os);
		}
	}
	return list;
}
 
Example 6
@Override
protected List<Work> executeProcessing(AeiObjects aeiObjects) throws Exception {
	Agent agent = (Agent) aeiObjects.getActivity();
	List<Work> os = new ArrayList<>();
	try {
		os = executing(aeiObjects, agent);
		return os;
	} catch (Exception e) {
		if (this.hasAgentInterruptScript(agent)) {
			CompiledScript compiledScript = aeiObjects.business().element().getCompiledScript(
					aeiObjects.getWork().getApplication(), aeiObjects.getActivity(), Business.EVENT_AGENTINTERRUPT);
			compiledScript.eval(aeiObjects.scriptContext());
		}
		throw e;
	}
}
 
Example 7
@Override
protected List<Work> executeProcessing(AeiObjects aeiObjects) throws Exception {
	Manual manual = (Manual) aeiObjects.getActivity();
	List<Work> os = executing(aeiObjects, manual);
	if (ListTools.isEmpty(os)) {
		/** Manual Work 还没有处理完 发生了停留,出发了停留事件 */
		if (this.hasManualStayScript(manual)) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
					aeiObjects.getActivity(), Business.EVENT_MANUALSTAY);
			cs.eval(scriptContext);
		}
	}
	return os;
}
 
Example 8
private static List<String> duty(AeiObjects aeiObjects, Manual manual) throws Exception {
	List<String> list = new ArrayList<>();
	if (StringUtils.isNotEmpty(manual.getTaskDuty())) {
		JsonArray array = XGsonBuilder.instance().fromJson(manual.getTaskDuty(), JsonArray.class);
		Iterator<JsonElement> iterator = array.iterator();
		while (iterator.hasNext()) {
			JsonObject o = iterator.next().getAsJsonObject();
			String name = o.get("name").getAsString();
			String code = o.get("code").getAsString();
			CompiledScript compiledScript = aeiObjects.business().element()
					.getCompiledScript(aeiObjects.getActivity(), Business.EVENT_TASKDUTY, name, code);
			Object objectValue = compiledScript.eval(aeiObjects.scriptContext());
			List<String> ds = ScriptFactory.asDistinguishedNameList(objectValue);
			if (ListTools.isNotEmpty(ds)) {
				for (String str : ds) {
					List<String> os = aeiObjects.business().organization().unitDuty()
							.listIdentityWithUnitWithName(str, name);
					if (ListTools.isNotEmpty(os)) {
						list.addAll(os);
					}
				}
			}
		}
	}
	return ListTools.trim(list, true, true);
}
 
Example 9
Source Project: o2oa   Source File: InvokeProcessor.java    License: GNU Affero General Public License v3.0 6 votes vote down vote up
private void jaxwsExternal(AeiObjects aeiObjects, Invoke invoke) throws Exception {
	Object[] parameters = this.jaxwsEvalParameters(aeiObjects, invoke);
	JaxwsObject jaxwsObject = new JaxwsObject();
	jaxwsObject.setAddress(invoke.getJaxwsAddress());
	jaxwsObject.setMethod(invoke.getJaxwsMethod());
	jaxwsObject.setParameters(parameters);
	if (BooleanUtils.isTrue(invoke.getAsync())) {
		ThisApplication.syncJaxwsInvokeQueue.send(jaxwsObject);
	} else {
		InvokeExecutor executor = new InvokeExecutor();
		Object response = executor.execute(jaxwsObject);
		if ((StringUtils.isNotEmpty(invoke.getJaxwsResponseScript()))
				|| (StringUtils.isNotEmpty(invoke.getJaxwsResponseScriptText()))) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			scriptContext.getBindings(ScriptContext.ENGINE_SCOPE).put(ScriptFactory.BINDING_NAME_JAXWSRESPONSE,
					response);
			/* 重新注入对象需要重新运行 */
			ScriptFactory.initialScriptText().eval(scriptContext);
			CompiledScript cs = aeiObjects.business().element().getCompiledScript(
					aeiObjects.getWork().getApplication(), aeiObjects.getActivity(),
					Business.EVENT_INVOKEJAXWSRESPONSE);
			cs.eval(scriptContext);
		}
	}
}
 
Example 10
Source Project: o2oa   Source File: InvokeProcessor.java    License: GNU Affero General Public License v3.0 6 votes vote down vote up
private String jaxrsUrl(AeiObjects aeiObjects, Invoke invoke) throws Exception {
	String url = invoke.getJaxrsAddress();
	Map<String, String> parameters = new HashMap<>();
	if ((StringUtils.isNotEmpty(invoke.getJaxrsParameterScript()))
			|| (StringUtils.isNotEmpty(invoke.getJaxrsParameterScriptText()))) {

		ScriptContext scriptContext = aeiObjects.scriptContext();
		scriptContext.getBindings(ScriptContext.ENGINE_SCOPE).put(ScriptFactory.BINDING_NAME_PARAMETERS,
				parameters);
		/* 重新注入对象需要重新运行 */
		ScriptFactory.initialScriptText().eval(scriptContext);
		CompiledScript cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getWork().getApplication(),
				aeiObjects.getActivity(), Business.EVENT_INVOKEJAXRSPARAMETER);
		cs.eval(scriptContext);
	}
	for (Entry<String, String> entry : parameters.entrySet()) {
		url = StringUtils.replace(url, "{" + entry.getKey() + "}", entry.getValue());
	}
	return url;
}
 
Example 11
Source Project: o2oa   Source File: InvokeProcessor.java    License: GNU Affero General Public License v3.0 6 votes vote down vote up
private Map<String, String> jaxrsEvalHead(AeiObjects aeiObjects, Invoke invoke) throws Exception {
	Map<String, String> map = new LinkedHashMap<>();
	if ((StringUtils.isNotEmpty(invoke.getJaxrsHeadScript()))
			|| (StringUtils.isNotEmpty(invoke.getJaxrsHeadScriptText()))) {

		ScriptContext scriptContext = aeiObjects.scriptContext();
		scriptContext.getBindings(ScriptContext.ENGINE_SCOPE).put(ScriptFactory.BINDING_NAME_JAXRSHEAD, map);
		/* 重新注入对象需要重新运行 */
		ScriptFactory.initialScriptText().eval(scriptContext);
		CompiledScript cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getWork().getApplication(),
				aeiObjects.getActivity(), Business.EVENT_INVOKEJAXRSHEAD);
		cs.eval(scriptContext);

	}
	return map;
}
 
Example 12
Source Project: o2oa   Source File: ServiceProcessor.java    License: GNU Affero General Public License v3.0 6 votes vote down vote up
@Override
protected List<Work> executing(AeiObjects aeiObjects, Service service) throws Exception {
	List<Work> results = new ArrayList<>();

	boolean passThrough = false;
	if (StringUtils.isNotEmpty(service.getScript()) || StringUtils.isNotEmpty(service.getScriptText())) {
		ScriptContext scriptContext = aeiObjects.scriptContext();
		scriptContext.getBindings(ScriptContext.ENGINE_SCOPE).put(ScriptFactory.BINDING_NAME_SERVICEVALUE,
				gson.toJson(aeiObjects.getWork().getProperties().getServiceValue()));
		CompiledScript cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getWork().getApplication(),
				aeiObjects.getActivity(), Business.EVENT_SERVICE);
		passThrough = ScriptFactory.asBoolean(cs.eval(scriptContext));
	} else {
		passThrough = true;
	}
	if (passThrough) {
		results.add(aeiObjects.getWork());
	}

	return results;
}
 
Example 13
private void callBeforeArriveScript(AeiObjects aeiObjects) throws Exception {
	if (aeiObjects.getActivityProcessingConfigurator().getCallBeforeArriveScript()) {
		if (this.hasBeforeArriveScript(aeiObjects.getProcess(), aeiObjects.getActivity())) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			if (this.hasBeforeArriveScript(aeiObjects.getProcess())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getProcess(), Business.EVENT_BEFOREARRIVE);
				cs.eval(scriptContext);
			}
			if (this.hasBeforeArriveScript(aeiObjects.getActivity())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getActivity(), Business.EVENT_BEFOREARRIVE);
				cs.eval(scriptContext);
			}
		}
	}
}
 
Example 14
private void callAfterArriveScript(AeiObjects aeiObjects) throws Exception {
	if (aeiObjects.getActivityProcessingConfigurator().getCallAfterArriveScript()) {
		if (this.hasAfterArriveScript(aeiObjects.getProcess(), aeiObjects.getActivity())) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			if (this.hasAfterArriveScript(aeiObjects.getProcess())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getProcess(), Business.EVENT_AFTERARRIVE);
				cs.eval(scriptContext);
			}
			if (this.hasAfterArriveScript(aeiObjects.getActivity())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getActivity(), Business.EVENT_AFTERARRIVE);
				cs.eval(scriptContext);
			}
		}
	}
}
 
Example 15
private void callBeforeExecuteScript(AeiObjects aeiObjects) throws Exception {
	if (aeiObjects.getActivityProcessingConfigurator().getCallBeforeExecuteScript()) {
		if (this.hasBeforeExecuteScript(aeiObjects.getProcess(), aeiObjects.getActivity())) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			if (this.hasBeforeExecuteScript(aeiObjects.getProcess())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getProcess(), Business.EVENT_BEFOREEXECUTE);
				cs.eval(scriptContext);
			}
			if (this.hasBeforeExecuteScript(aeiObjects.getActivity())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getActivity(), Business.EVENT_BEFOREEXECUTE);
				cs.eval(scriptContext);
			}
		}
	}
}
 
Example 16
private void callAfterExecuteScript(AeiObjects aeiObjects) throws Exception {
	if (aeiObjects.getActivityProcessingConfigurator().getCallAfterExecuteScript()) {
		if (this.hasAfterExecuteScript(aeiObjects.getProcess(), aeiObjects.getActivity())) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			if (this.hasAfterExecuteScript(aeiObjects.getProcess())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getProcess(), Business.EVENT_AFTEREXECUTE);
				cs.eval(scriptContext);
			}
			if (this.hasAfterExecuteScript(aeiObjects.getActivity())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getActivity(), Business.EVENT_AFTEREXECUTE);
				cs.eval(scriptContext);
			}
		}
	}
}
 
Example 17
private void callBeforeInquireScript(AeiObjects aeiObjects) throws Exception {
	if (aeiObjects.getActivityProcessingConfigurator().getCallBeforeInquireScript()) {
		if (this.hasBeforeInquireScript(aeiObjects.getProcess(), aeiObjects.getActivity())) {
			ScriptContext scriptContext = aeiObjects.scriptContext();
			CompiledScript cs = null;
			if (this.hasBeforeInquireScript(aeiObjects.getProcess())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getProcess(), Business.EVENT_BEFOREINQUIRE);
				cs.eval(scriptContext);
			}
			if (this.hasBeforeInquireScript(aeiObjects.getActivity())) {
				cs = aeiObjects.business().element().getCompiledScript(aeiObjects.getApplication().getId(),
						aeiObjects.getActivity(), Business.EVENT_BEFOREINQUIRE);
				cs.eval(scriptContext);
			}
		}
	}
}
 
Example 18
private boolean evaluate(String expression, Map<String, Object> context) {
    CompiledScript compiledScript = getOrCreateCompileScript(expression);
    if (compiledScript != null) {
        ScriptContext scriptContext = scriptEngine.getContext();
        for (Map.Entry<String, Object> entry : context.entrySet()) {
            scriptContext.setAttribute(entry.getKey(), entry.getValue(), ScriptContext.ENGINE_SCOPE);
        }
        try {
            logger.debug("Evaluating expression: {}", expression);
            Object result = scriptEngine.eval(expression, scriptContext);
            logger.debug("Evaluated expression: {} and got result: {}", expression, result);
            if (result == Boolean.TRUE) {
                return true;
            }

        } catch (ScriptException e) {
            logger.debug("Unable to evaluate expression: {}", expression, e);
            throw SchedulerException.systemSelectorEvaluationError("Unable to evaluate expression: %s", e, expression);
        }
    }
    return false;
}
 
Example 19
Source Project: netbeans   Source File: OQLEngineImpl.java    License: Apache License 2.0 6 votes vote down vote up
private void init(Snapshot snapshot) throws RuntimeException {
    this.snapshot = snapshot;
    try {
        ScriptEngineManager manager = Scripting.newBuilder().allowAllAccess(true).build();
        engine = manager.getEngineByName("JavaScript"); // NOI18N
        InputStream strm = getInitStream();
        CompiledScript cs = ((Compilable)engine).compile(new InputStreamReader(strm));
        cs.eval();
        Object heap = ((Invocable)engine).invokeFunction("wrapHeapSnapshot", snapshot); // NOI18N
        engine.put("heap", heap); // NOI18N
        engine.put("cancelled", cancelled); // NOI18N
    } catch (Exception ex) {
        LOGGER.log(Level.INFO, "Error initializing snapshot", ex); // NOI18N
        throw new RuntimeException(ex);
    }
}
 
Example 20
Source Project: neoscada   Source File: SetExternalNameWizard.java    License: Eclipse Public License 1.0 6 votes vote down vote up
public void setExternalName ( final CompiledScript script ) throws Exception
{
    final CompoundManager manager = new CompoundManager ();

    for ( final ExternalValue v : SelectionHelper.iterable ( this.selection, ExternalValue.class ) )
    {
        final EditingDomain domain = AdapterFactoryEditingDomain.getEditingDomainFor ( v );
        if ( domain == null )
        {
            continue;
        }
        final String name = evalName ( script, v );
        manager.append ( domain, SetCommand.create ( domain, v, ComponentPackage.Literals.EXTERNAL_VALUE__SOURCE_NAME, name ) );
    }

    manager.executeAll ();
}
 
Example 21
Source Project: neoscada   Source File: SetExternalNameWizard.java    License: Eclipse Public License 1.0 6 votes vote down vote up
public static String evalName ( final CompiledScript script, final ExternalValue v ) throws Exception
{
    final SimpleScriptContext ctx = new SimpleScriptContext ();

    ctx.setAttribute ( "item", v, ScriptContext.ENGINE_SCOPE ); //$NON-NLS-1$

    final Object result = Scripts.executeWithClassLoader ( Activator.class.getClassLoader (), new Callable<Object> () {

        @Override
        public Object call () throws Exception
        {
            return script.eval ( ctx );
        }
    } );

    if ( result == null )
    {
        return null;
    }

    return result.toString ();
}
 
Example 22
@Test
public void invokeFunctionWithCustomScriptContextTest() throws Exception {
    final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");

    // create an engine and a ScriptContext, but don't set it as default
    ScriptContext scriptContext = new SimpleScriptContext();

    // Set some value in the context
    scriptContext.setAttribute("myString", "foo", ScriptContext.ENGINE_SCOPE);

    // Evaluate script with custom context and get back a function
    final String script = "function (c) { return myString.indexOf(c); }";
    CompiledScript compiledScript = ((Compilable)engine).compile(script);
    Object func = compiledScript.eval(scriptContext);

    // Invoked function should be able to see context it was evaluated with
    Object result = ((Invocable) engine).invokeMethod(func, "call", func, "o", null);
    assertTrue(((Number)result).intValue() == 1);
}
 
Example 23
Source Project: dubbo-2.6.5   Source File: ScriptRouter.java    License: Apache License 2.0 5 votes vote down vote up
@Override
@SuppressWarnings("unchecked")
public <T> List<Invoker<T>> route(List<Invoker<T>> invokers, URL url, Invocation invocation) throws RpcException {
    try {
        List<Invoker<T>> invokersCopy = new ArrayList<Invoker<T>>(invokers);
        Compilable compilable = (Compilable) engine;
        Bindings bindings = engine.createBindings();
        bindings.put("invokers", invokersCopy);
        bindings.put("invocation", invocation);
        bindings.put("context", RpcContext.getContext());
        CompiledScript function = compilable.compile(rule);
        Object obj = function.eval(bindings);
        if (obj instanceof Invoker[]) {
            invokersCopy = Arrays.asList((Invoker<T>[]) obj);
        } else if (obj instanceof Object[]) {
            invokersCopy = new ArrayList<Invoker<T>>();
            for (Object inv : (Object[]) obj) {
                invokersCopy.add((Invoker<T>) inv);
            }
        } else {
            invokersCopy = (List<Invoker<T>>) obj;
        }
        return invokersCopy;
    } catch (ScriptException e) {
        //fail then ignore rule .invokers.
        logger.error("route error , rule has been ignored. rule: " + rule + ", method:" + invocation.getMethodName() + ", url: " + RpcContext.getContext().getUrl(), e);
        return invokers;
    }
}
 
Example 24
Source Project: SubTitleSearcher   Source File: Test2.java    License: Apache License 2.0 5 votes vote down vote up
public static void main(String[] args) {
	ScriptEngineManager manager = new ScriptEngineManager();
	ScriptEngine engine = manager.getEngineByName("JavaScript");
	try {
		String script = "function getUrl(){var url='adsf';return url;} getUrl()";
		Compilable compilable = (Compilable) engine;
		CompiledScript JSFunction = compilable.compile(script);
		Object result = JSFunction.eval();
		System.out.println(result);
	} catch (Exception e) {
		e.printStackTrace();
	}
}
 
Example 25
Source Project: SubTitleSearcher   Source File: ExeJsUtil.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 执行js并返回结果
 * @param jsStr
 * @return
 */
public static String getJsVal(String jsStr) {
	ScriptEngineManager manager = new ScriptEngineManager();
	ScriptEngine engine = manager.getEngineByName("JavaScript");
	try {
		Compilable compilable = (Compilable) engine;
		CompiledScript JSFunction = compilable.compile(jsStr);
		Object result = JSFunction.eval();
		return result != null ? result.toString() : null;
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}
 
Example 26
private CompiledScript asCompiledScript(final Source source) throws ScriptException {
    final Context.MultiGlobalCompiledScript mgcs;
    final ScriptFunction func;
    final Global oldGlobal = Context.getGlobal();
    final Global newGlobal = getNashornGlobalFrom(context);
    final boolean globalChanged = (oldGlobal != newGlobal);
    try {
        if (globalChanged) {
            Context.setGlobal(newGlobal);
        }

        mgcs = nashornContext.compileScript(source);
        func = mgcs.getFunction(newGlobal);
    } catch (final Exception e) {
        throwAsScriptException(e, newGlobal);
        throw new AssertionError("should not reach here");
    } finally {
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return new CompiledScript() {
        @Override
        public Object eval(final ScriptContext ctxt) throws ScriptException {
            final Global globalObject = getNashornGlobalFrom(ctxt);
            // Are we running the script in the same global in which it was compiled?
            if (func.getScope() == globalObject) {
                return evalImpl(func, ctxt, globalObject);
            }

            // different global
            return evalImpl(mgcs, ctxt, globalObject);
        }
        @Override
        public ScriptEngine getEngine() {
            return NashornScriptEngine.this;
        }
    };
}
 
Example 27
private CompiledScript asCompiledScript(final Source source) throws ScriptException {
    final Context.MultiGlobalCompiledScript mgcs;
    final ScriptFunction func;
    final Global oldGlobal = Context.getGlobal();
    final Global newGlobal = getNashornGlobalFrom(context);
    final boolean globalChanged = (oldGlobal != newGlobal);
    try {
        if (globalChanged) {
            Context.setGlobal(newGlobal);
        }

        mgcs = nashornContext.compileScript(source);
        func = mgcs.getFunction(newGlobal);
    } catch (final Exception e) {
        throwAsScriptException(e, newGlobal);
        throw new AssertionError("should not reach here");
    } finally {
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return new CompiledScript() {
        @Override
        public Object eval(final ScriptContext ctxt) throws ScriptException {
            final Global globalObject = getNashornGlobalFrom(ctxt);
            // Are we running the script in the same global in which it was compiled?
            if (func.getScope() == globalObject) {
                return evalImpl(func, ctxt, globalObject);
            }

            // different global
            return evalImpl(mgcs, ctxt, globalObject);
        }
        @Override
        public ScriptEngine getEngine() {
            return NashornScriptEngine.this;
        }
    };
}
 
Example 28
protected Object evaluateExpression(Object expression, Map<String, Object> parameters) {
	try {
		Object result = null;
		StringWriter writer = new StringWriter();			
		
		ScriptContext context = new SimpleScriptContext();
		for (Map.Entry<String, Object> property : engineProperties.entrySet()) {
			context.setAttribute(property.getKey(), property.getValue(), ScriptContext.ENGINE_SCOPE);
		}
		Bindings bindings = context.getBindings(ScriptContext.ENGINE_SCOPE);
		bindings.putAll(parameters);
		context.setBindings(bindings, ScriptContext.ENGINE_SCOPE);
		context.setWriter(writer);
		if (expression instanceof CompiledScript) {
			logger.debug("About to evaluate compiled expression {} with bindings {} on engine", expression, parameters, scriptEngine);
			result = ((CompiledScript) expression).eval(context);
		} else {
			logger.debug("About to evaluate expression {} with bindings {} on engine", expression, parameters, scriptEngine);
			result = scriptEngine.eval(expression.toString(), context);
		}
		if (result == null) {
			result = writer.toString();
		}
		return result;
	} catch (ScriptException e) {
		throw new RuntimeException("Error when evaluating script", e);
	}
}
 
Example 29
Source Project: jdk8u60   Source File: NashornScriptEngine.java    License: GNU General Public License v2.0 5 votes vote down vote up
private CompiledScript asCompiledScript(final Source source) throws ScriptException {
    final Context.MultiGlobalCompiledScript mgcs;
    final ScriptFunction func;
    final Global oldGlobal = Context.getGlobal();
    final Global newGlobal = getNashornGlobalFrom(context);
    final boolean globalChanged = (oldGlobal != newGlobal);
    try {
        if (globalChanged) {
            Context.setGlobal(newGlobal);
        }

        mgcs = nashornContext.compileScript(source);
        func = mgcs.getFunction(newGlobal);
    } catch (final Exception e) {
        throwAsScriptException(e, newGlobal);
        throw new AssertionError("should not reach here");
    } finally {
        if (globalChanged) {
            Context.setGlobal(oldGlobal);
        }
    }

    return new CompiledScript() {
        @Override
        public Object eval(final ScriptContext ctxt) throws ScriptException {
            final Global globalObject = getNashornGlobalFrom(ctxt);
            // Are we running the script in the same global in which it was compiled?
            if (func.getScope() == globalObject) {
                return evalImpl(func, ctxt, globalObject);
            }

            // different global
            return evalImpl(mgcs, ctxt, globalObject);
        }
        @Override
        public ScriptEngine getEngine() {
            return NashornScriptEngine.this;
        }
    };
}
 
Example 30
Source Project: iotplatform   Source File: NashornJsEvaluator.java    License: Apache License 2.0 5 votes vote down vote up
private static CompiledScript compileScript(String script) {
  ScriptEngine engine = factory.getScriptEngine(new String[] { "--no-java" });
  Compilable compEngine = (Compilable) engine;
  try {
    return compEngine.compile(script);
  } catch (ScriptException e) {
    log.warn("Failed to compile filter script: {}", e.getMessage(), e);
    throw new IllegalArgumentException("Can't compile script: " + e.getMessage());
  }
}