Examples with SetTaskOutputResponse org.wso2.carbon.humantask.rendering.api.SetTaskOutputResponse used on opensource projects

Example 1 with SetTaskOutputResponse

use of org.wso2.carbon.humantask.rendering.api.SetTaskOutputResponse in project carbon-business-process by wso2.

the class HTRenderingApiImpl method setTaskOutput.

public SetTaskOutputResponse setTaskOutput(URI taskIdentifier, SetOutputValuesType values) throws SetTaskOutputFaultException {
    // Retrieve task information
    TaskDAO htTaskDAO;
    try {
        htTaskDAO = getTaskDAO(taskIdentifier);
    } catch (Exception e) {
        log.error("Error occurred while retrieving task data", e);
        throw new SetTaskOutputFaultException(e);
    }
    QName taskName = QName.valueOf(htTaskDAO.getName());
    // Check hash map for output message template
    Element outputMsgTemplate = outputTemplates.get(taskName);
    if (outputMsgTemplate == null) {
        try {
            // generate output message template
            int tenantID = CarbonContext.getThreadLocalCarbonContext().getTenantId();
            HumanTaskBaseConfiguration htConf = HumanTaskServiceComponent.getHumanTaskServer().getTaskStoreManager().getHumanTaskStore(tenantID).getTaskConfiguration(taskName);
            TaskConfiguration taskConf = (TaskConfiguration) htConf;
            // retrieve response binding
            Service callbackService = (Service) taskConf.getResponseWSDL().getServices().get(taskConf.getCallbackServiceName());
            Port callbackPort = (Port) callbackService.getPorts().get(taskConf.getCallbackPortName());
            String callbackBinding = callbackPort.getBinding().getQName().getLocalPart();
            outputMsgTemplate = createSoapTemplate(taskConf.getResponseWSDL().getDocumentBaseURI(), taskConf.getResponsePortType().getLocalPart(), taskConf.getResponseOperation(), callbackBinding);
        } catch (Exception e) {
            log.error("Error occurred while output message template generation", e);
            throw new SetTaskOutputFaultException("Unable to generate output message", e);
        }
        // add to the template HashMap
        if (outputMsgTemplate != null) {
            outputTemplates.put(taskName, outputMsgTemplate);
        } else {
            log.error("Unable to create output message template");
            throw new SetTaskOutputFaultException("Unable to generate output message");
        }
    }
    // update template with new values
    try {
        // TODO improve this section with caching
        QName renderingType = new QName(htRenderingNS, "output", "wso2");
        String outputRenderings = (String) taskOps.getRendering(taskIdentifier, renderingType);
        SetOutputvalueType[] valueSet = values.getValue();
        if (outputRenderings != null && valueSet.length > 0) {
            Element outputRenderingsElement = DOMUtils.stringToDOM(outputRenderings);
            // update elements in the template to create output xml
            for (int i = 0; i < valueSet.length; i++) {
                Element outElement = getOutputElementById(valueSet[i].getId(), outputRenderingsElement);
                if (outElement != null) {
                    outputMsgTemplate = updateXmlByXpath(outputMsgTemplate, outElement.getElementsByTagNameNS(htRenderingNS, "xpath").item(0).getTextContent(), valueSet[i].getString(), outputRenderingsElement.getOwnerDocument());
                }
            }
        } else {
            log.error("Retrieving output renderings failed");
            throw new SetTaskOutputFaultException("Retrieving output renderings failed");
        }
        // TODO what is this NCName?
        taskOps.setOutput(taskIdentifier, new NCName("message"), DOMUtils.domToString(outputMsgTemplate));
    } catch (IllegalArgumentFault illegalArgumentFault) {
        // Error occurred while retrieving HT renderings and set output message
        throw new SetTaskOutputFaultException(illegalArgumentFault);
    } catch (SAXException e) {
        log.error("Error occured while parsing output renderings", e);
        throw new SetTaskOutputFaultException("Response message generation failed");
    } catch (XPathExpressionException e) {
        // Error occured while updating elements in the template to create output xml
        log.error("XPath evaluation failed", e);
        throw new SetTaskOutputFaultException("Internal Error Occurred");
    } catch (Exception e) {
        // Error occurred while updating template with new values
        log.error("Error occurred while updating template with new values", e);
        throw new SetTaskOutputFaultException("Internal Error Occurred");
    }
    SetTaskOutputResponse response = new SetTaskOutputResponse();
    response.setSuccess(true);
    return response;
}