Examples with Within org.wso2.siddhi.query.api.aggregation.Within used on opensource projects

Example 76 with Within

use of org.wso2.siddhi.query.api.aggregation.Within in project carbon-business-process by wso2.

the class HumanTaskServer method initScheduler.

/**
 * Scheduler initialisation.
 */
private void initScheduler() {
    ThreadFactory threadFactory = new ThreadFactory() {

        private int threadNumber = 0;

        public Thread newThread(Runnable r) {
            threadNumber += 1;
            Thread t = new Thread(r, "HumanTaskServer-" + threadNumber);
            t.setDaemon(true);
            return t;
        }
    };
    ExecutorService executorService = Executors.newFixedThreadPool(serverConfig.getThreadPoolMaxSize(), threadFactory);
    SimpleScheduler simpleScheduler = new SimpleScheduler(new GUID().toString());
    simpleScheduler.setExecutorService(executorService);
    simpleScheduler.setTransactionManager(tnxManager);
    taskEngine.setScheduler(simpleScheduler);
    simpleScheduler.setJobProcessor(new JobProcessorImpl());
    // Start the scheduler within the HumanTaskSchedulerInitializer to ensure that all the tasks are deployed
    // when the scheduler actually starts.
    // simpleScheduler.start();
    scheduler = simpleScheduler;
}

Example 77 with Within

use of org.wso2.siddhi.query.api.aggregation.Within in project carbon-business-process by wso2.

the class RESTTask method execute.

@Override
public void execute(DelegateExecution execution) {
    if (method == null) {
        String error = "HTTP method for the REST task not found. Please specify the \"method\" form property.";
        throw new RESTClientException(error);
    }
    if (log.isDebugEnabled()) {
        if (serviceURL != null) {
            log.debug("Executing RESTInvokeTask " + method.getValue(execution).toString() + " - " + serviceURL.getValue(execution).toString());
        } else if (serviceRef != null) {
            log.debug("Executing RESTInvokeTask " + method.getValue(execution).toString() + " - " + serviceRef.getValue(execution).toString());
        }
    }
    RESTInvoker restInvoker = BPMNRestExtensionHolder.getInstance().getRestInvoker();
    RESTResponse response;
    String url = null;
    String bUsername = null;
    String bPassword = null;
    JsonNodeObject jsonHeaders = null;
    boolean contentAvailable = false;
    try {
        if (serviceURL != null) {
            url = serviceURL.getValue(execution).toString();
            if (basicAuthUsername != null && basicAuthPassword != null) {
                bUsername = basicAuthUsername.getValue(execution).toString();
                bPassword = basicAuthPassword.getValue(execution).toString();
            }
        } else if (serviceRef != null) {
            String resourcePath = serviceRef.getValue(execution).toString();
            String registryPath;
            int tenantIdInt = Integer.parseInt(execution.getTenantId());
            RealmService realmService = RegistryContext.getBaseInstance().getRealmService();
            String domain = realmService.getTenantManager().getDomain(tenantIdInt);
            Registry registry;
            Resource urlResource;
            try {
                PrivilegedCarbonContext.startTenantFlow();
                if (domain != null) {
                    PrivilegedCarbonContext.getThreadLocalCarbonContext().setTenantDomain(domain);
                    PrivilegedCarbonContext.getThreadLocalCarbonContext().setTenantId(tenantIdInt);
                } else {
                    PrivilegedCarbonContext.getThreadLocalCarbonContext().setTenantDomain(MultitenantConstants.SUPER_TENANT_DOMAIN_NAME);
                    PrivilegedCarbonContext.getThreadLocalCarbonContext().setTenantId(tenantIdInt);
                }
                if (resourcePath.startsWith(GOVERNANCE_REGISTRY_PREFIX)) {
                    registryPath = resourcePath.substring(GOVERNANCE_REGISTRY_PREFIX.length());
                    registry = BPMNExtensionsComponent.getRegistryService().getGovernanceSystemRegistry(tenantIdInt);
                } else if (resourcePath.startsWith(CONFIGURATION_REGISTRY_PREFIX)) {
                    registryPath = resourcePath.substring(CONFIGURATION_REGISTRY_PREFIX.length());
                    registry = BPMNExtensionsComponent.getRegistryService().getConfigSystemRegistry(tenantIdInt);
                } else {
                    String msg = "Registry type is not specified for service reference in " + getTaskDetails(execution) + ". serviceRef should begin with gov:/ or conf:/ to indicate the registry type.";
                    throw new RESTClientException(msg);
                }
                if (log.isDebugEnabled()) {
                    log.debug("Reading endpoint from registry location: " + registryPath + " for task " + getTaskDetails(execution));
                }
                urlResource = registry.get(registryPath);
            } finally {
                PrivilegedCarbonContext.endTenantFlow();
            }
            if (urlResource != null) {
                String uepContent = new String((byte[]) urlResource.getContent(), Charset.defaultCharset());
                UnifiedEndpointFactory uepFactory = new UnifiedEndpointFactory();
                OMElement uepElement = AXIOMUtil.stringToOM(uepContent);
                UnifiedEndpoint uep = uepFactory.createEndpoint(uepElement);
                url = uep.getAddress();
                bUsername = uep.getAuthorizationUserName();
                bPassword = uep.getAuthorizationPassword();
            } else {
                String errorMsg = "Endpoint resource " + registryPath + " is not found. Failed to execute REST invocation in task " + getTaskDetails(execution);
                throw new RESTClientException(errorMsg);
            }
        } else {
            String urlNotFoundErrorMsg = "Service URL is not provided for " + getTaskDetails(execution) + ". serviceURL or serviceRef must be provided.";
            throw new RESTClientException(urlNotFoundErrorMsg);
        }
        if (headers != null) {
            String headerContent = headers.getValue(execution).toString();
            jsonHeaders = JSONUtils.parse(headerContent);
        }
        if (POST_METHOD.equals(method.getValue(execution).toString().trim().toUpperCase())) {
            String inputContent = input.getValue(execution).toString();
            response = restInvoker.invokePOST(new URI(url), jsonHeaders, bUsername, bPassword, inputContent);
        } else if (GET_METHOD.equals(method.getValue(execution).toString().trim().toUpperCase())) {
            response = restInvoker.invokeGET(new URI(url), jsonHeaders, bUsername, bPassword);
        } else if (PUT_METHOD.equals(method.getValue(execution).toString().trim().toUpperCase())) {
            String inputContent = input.getValue(execution).toString();
            response = restInvoker.invokePUT(new URI(url), jsonHeaders, bUsername, bPassword, inputContent);
        } else if (DELETE_METHOD.equals(method.getValue(execution).toString().trim().toUpperCase())) {
            response = restInvoker.invokeDELETE(new URI(url), jsonHeaders, bUsername, bPassword);
        } else {
            String errorMsg = "Unsupported http method. The REST task only supports GET, POST, PUT and DELETE operations";
            throw new RESTClientException(errorMsg);
        }
        Object output = response.getContent();
        if (output != null) {
            contentAvailable = !response.getContent().equals("");
        }
        boolean contentTypeAvailable = false;
        if (response.getContentType() != null) {
            contentTypeAvailable = true;
        }
        if (contentAvailable && contentTypeAvailable && response.getContentType().contains(APPLICATION_JSON)) {
            output = JSONUtils.parse(String.valueOf(output));
        } else if (contentAvailable && contentTypeAvailable && response.getContentType().contains(APPLICATION_XML)) {
            output = Utils.parse(String.valueOf(output));
        } else {
            output = StringEscapeUtils.escapeXml(String.valueOf(output));
        }
        if (outputVariable != null) {
            String outVarName = outputVariable.getValue(execution).toString();
            execution.setVariable(outVarName, output);
        } else if (outputMappings != null) {
            String outMappings = outputMappings.getValue(execution).toString();
            outMappings = outMappings.trim();
            String[] mappings = outMappings.split(",");
            for (String mapping : mappings) {
                String[] mappingParts = mapping.split(":");
                String varName = mappingParts[0];
                String expression = mappingParts[1];
                Object value;
                if (output instanceof JsonNodeObject) {
                    value = ((JsonNodeObject) output).jsonPath(expression);
                } else {
                    value = ((XMLDocument) output).xPath(expression);
                }
                execution.setVariable(varName, value);
            }
        } else {
            String outputNotFoundErrorMsg = "An outputVariable or outputMappings is not provided. " + "Either an output variable or output mappings  must be provided to save " + "the response.";
            throw new RESTClientException(outputNotFoundErrorMsg);
        }
        if (responseHeaderVariable != null) {
            StringBuilder headerJsonStr = new StringBuilder();
            headerJsonStr.append("{");
            String prefix = "";
            for (Header header : response.getHeaders()) {
                headerJsonStr.append(prefix);
                String name = header.getName().replaceAll("\"", "");
                String value = header.getValue().replaceAll("\"", "");
                headerJsonStr.append("\"").append(name).append("\":\"").append(value).append("\"");
                prefix = ",";
            }
            headerJsonStr.append("}");
            JsonNodeObject headerJson = JSONUtils.parse(headerJsonStr.toString());
            execution.setVariable(responseHeaderVariable.getValue(execution).toString(), headerJson);
        }
        if (httpStatusVariable != null) {
            execution.setVariable(httpStatusVariable.getValue(execution).toString(), response.getHttpStatus());
        }
    } catch (RegistryException | XMLStreamException | URISyntaxException | IOException | SAXException | ParserConfigurationException e) {
        String errorMessage = "Failed to execute " + method.getValue(execution).toString() + " " + url + " within task " + getTaskDetails(execution);
        log.error(errorMessage, e);
        throw new RESTClientException(REST_INVOKE_ERROR, errorMessage);
    } catch (BPMNJsonException | BPMNXmlException e) {
        String errorMessage = "Failed to extract values for output mappings, the response content" + " doesn't support the expression" + method.getValue(execution).toString() + " " + url + " within task " + getTaskDetails(execution);
        log.error(errorMessage, e);
        throw new RESTClientException(REST_INVOKE_ERROR, errorMessage);
    } catch (UserStoreException e) {
        String errorMessage = "Failed to obtain tenant domain information";
        log.error(errorMessage, e);
        throw new RESTClientException(REST_INVOKE_ERROR, errorMessage);
    }
}

Example 78 with Within

use of org.wso2.siddhi.query.api.aggregation.Within in project carbon-business-process by wso2.

the class HTRenderingApiImpl method getRenderingInputElements.

/**
 * @param taskIdentifier : interested task identifier
 * @return set of input renderings wrapped within InputType
 * @throws IllegalArgumentFault : error occured while retrieving renderings from task definition
 * @throws IOException          If an error occurred while reading from the input source
 * @throws SAXException         If the content in the input source is invalid
 */
private InputType getRenderingInputElements(URI taskIdentifier) throws IllegalArgumentFault, IOException, SAXException, IllegalOperationFault, IllegalAccessFault, IllegalStateFault, XPathExpressionException {
    // TODO Chaching : check cache against task id for input renderings
    QName renderingType = new QName(htRenderingNS, "input", "wso2");
    String inputRenderings = (String) taskOps.getRendering(taskIdentifier, renderingType);
    // Create input element
    InputType renderingInputs = null;
    // check availability of input renderings
    if (inputRenderings != null && inputRenderings.length() > 0) {
        // parse input renderings
        Element inputRenderingsElement = DOMUtils.stringToDOM(inputRenderings);
        // retrieve input elements
        NodeList inputElementList = inputRenderingsElement.getElementsByTagNameNS(htRenderingNS, "element");
        Element taskInputMsgElement = DOMUtils.stringToDOM((String) taskOps.getInput(taskIdentifier, null));
        if (inputElementList != null && inputElementList.getLength() > 0) {
            // hold number of input element
            int inputElementNum = inputElementList.getLength();
            InputElementType[] inputElements = new InputElementType[inputElementNum];
            for (int i = 0; i < inputElementNum; i++) {
                Element tempElement = (Element) inputElementList.item(i);
                String label = tempElement.getElementsByTagNameNS(htRenderingNS, "label").item(0).getTextContent();
                String value = tempElement.getElementsByTagNameNS(htRenderingNS, "value").item(0).getTextContent();
                // if the value starts with '/' then considered as an xpath and evaluate over received Input Message
                if (value.startsWith("/") && taskInputMsgElement != null) {
                    // value represents xpath. evaluate against the input message
                    String xpathValue = evaluateXPath(value, taskInputMsgElement, inputRenderingsElement.getOwnerDocument());
                    if (xpathValue != null) {
                        value = xpathValue;
                    }
                }
                inputElements[i] = new InputElementType();
                inputElements[i].setLabel(label);
                inputElements[i].setValue(value);
            }
            renderingInputs = new InputType();
            renderingInputs.setElement(inputElements);
        // TODO cache renderingInputs against task instance id
        }
    }
    return renderingInputs;
}

Example 79 with Within

use of org.wso2.siddhi.query.api.aggregation.Within in project siddhi by wso2.

the class PatternQueryTestCase method testPatternQuery10.

// from every (e1=Stream1[price >= 30]) -> (e2=Stream1[ prev.price >= 20] -> e3=Stream2[ price >= e1.price])
// within 4 min -> e4=Stream3[price>74]
// select e1.symbol, avg(e2.price ) as avgPrice
// insert into OutputStream
@Test
public void testPatternQuery10() {
    Query query = Query.query();
    query.from(InputStream.patternStream(State.next(State.every(State.stream(InputStream.stream("e1", "Stream1").filter(Expression.compare(Expression.variable("price"), Compare.Operator.GREATER_THAN_EQUAL, Expression.value(30))))), State.next(State.next(State.stream(InputStream.stream("e2", "Stream1").filter(Expression.compare(Expression.variable("price").ofStream("e2", Variable.LAST), Compare.Operator.GREATER_THAN_EQUAL, Expression.value(20)))), State.stream(InputStream.stream("e3", "Stream2").filter(Expression.compare(Expression.variable("price"), Compare.Operator.GREATER_THAN_EQUAL, Expression.variable("price").ofStream("e1")))), Expression.Time.minute(4)), State.stream(InputStream.stream("e4", "Stream3").filter(Expression.compare(Expression.variable("price"), Compare.Operator.GREATER_THAN, Expression.value(74))))))));
    query.select(Selector.selector().select("symbol", Expression.variable("symbol").ofStream("e1")).select("avgPrice", Expression.function("avg", Expression.variable("price").ofStream("e2"))));
    query.insertInto("OutputStream");
}

Example 80 with Within

use of org.wso2.siddhi.query.api.aggregation.Within in project siddhi by wso2.

the class Partition method addQuery.

public Partition addQuery(Query query) {
    if (query == null) {
        throw new SiddhiAppValidationException("Query should not be null");
    }
    String name = null;
    Element element = AnnotationHelper.getAnnotationElement(SiddhiConstants.ANNOTATION_INFO, SiddhiConstants.ANNOTATION_ELEMENT_NAME, query.getAnnotations());
    if (element != null) {
        name = element.getValue();
    }
    if (name != null && queryNameList.contains(name)) {
        throw new SiddhiAppValidationException("Cannot add Query as another Execution Element already uses " + "its name=" + name + " within the same Partition", element.getQueryContextStartIndex(), element.getQueryContextEndIndex());
    }
    queryNameList.add(name);
    this.queryList.add(query);
    return this;
}