Examples with RestVariable org.wso2.carbon.bpmn.rest.engine.variable.RestVariable used on opensource projects

Example 1 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class RestResponseFactory method createBinaryRestVariable.

public RestVariable createBinaryRestVariable(String name, RestVariable.RestVariableScope scope, String type, String taskId, String executionId, String processInstanceId, String baseUri) {
    RestUrlBuilder urlBuilder = createUrlBuilder(baseUri);
    RestVariable restVar = new RestVariable();
    restVar.setVariableScope(scope);
    restVar.setName(name);
    restVar.setType(type);
    if (taskId != null) {
        restVar.setValueUrl(urlBuilder.buildUrl(RestUrls.URL_TASK_VARIABLE_DATA, taskId, name));
    }
    if (executionId != null) {
        restVar.setValueUrl(urlBuilder.buildUrl(RestUrls.URL_EXECUTION_VARIABLE_DATA, executionId, name));
    }
    if (processInstanceId != null) {
        restVar.setValueUrl(urlBuilder.buildUrl(RestUrls.URL_PROCESS_INSTANCE_VARIABLE_DATA, processInstanceId, name));
    }
    return restVar;
}

Example 2 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class RestResponseFactory method getVariableValue.

public Object getVariableValue(QueryVariable restVariable) {
    Object value;
    if (restVariable.getType() != null) {
        // Try locating a converter if the type has been specified
        RestVariableConverter converter = null;
        for (RestVariableConverter conv : variableConverters) {
            if (conv.getRestTypeName().equals(restVariable.getType())) {
                converter = conv;
                break;
            }
        }
        if (converter == null) {
            throw new ActivitiIllegalArgumentException("Variable '" + restVariable.getName() + "' has unsupported type: '" + restVariable.getType() + "'.");
        }
        RestVariable temp = new RestVariable();
        temp.setValue(restVariable.getValue());
        temp.setType(restVariable.getType());
        temp.setName(restVariable.getName());
        value = converter.getVariableValue(temp);
    } else {
        // Revert to type determined by REST-to-Java mapping when no explicit type has been provided
        value = restVariable.getValue();
    }
    return value;
}

Example 3 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ProcessInstanceService method addGlobalVariables.

protected void addGlobalVariables(Execution execution, int variableType, Map<String, RestVariable> variableMap) {
    RuntimeService runtimeService = BPMNOSGIService.getRuntimeService();
    Map<String, Object> rawVariables = runtimeService.getVariables(execution.getId());
    List<RestVariable> globalVariables = new RestResponseFactory().createRestVariables(rawVariables, execution.getId(), variableType, RestVariable.RestVariableScope.GLOBAL, uriInfo.getBaseUri().toString());
    // since local variables get precedence over global ones at all times.
    for (RestVariable var : globalVariables) {
        if (!variableMap.containsKey(var.getName())) {
            variableMap.put(var.getName(), var);
        }
    }
}

Example 4 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ProcessInstanceService method createExecutionVariable.

protected Response createExecutionVariable(Execution execution, boolean override, int variableType, HttpServletRequest httpServletRequest) throws IOException, ServletException {
    boolean debugEnabled = log.isDebugEnabled();
    if (debugEnabled) {
        log.debug("httpServletRequest.getContentType():" + httpServletRequest.getContentType());
    }
    Response.ResponseBuilder responseBuilder = Response.ok();
    if (debugEnabled) {
        log.debug("Processing non binary variable");
    }
    List<RestVariable> inputVariables = new ArrayList<>();
    List<RestVariable> resultVariables = new ArrayList<>();
    try {
        if (Utils.isApplicationJsonRequest(httpServletRequest)) {
            ObjectMapper objectMapper = new ObjectMapper();
            @SuppressWarnings("unchecked") List<Object> variableObjects = (List<Object>) objectMapper.readValue(httpServletRequest.getInputStream(), List.class);
            for (Object restObject : variableObjects) {
                RestVariable restVariable = objectMapper.convertValue(restObject, RestVariable.class);
                inputVariables.add(restVariable);
            }
        } else if (Utils.isApplicationXmlRequest(httpServletRequest)) {
            JAXBContext jaxbContext;
            try {
                XMLInputFactory xif = XMLInputFactory.newInstance();
                xif.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, false);
                xif.setProperty(XMLInputFactory.SUPPORT_DTD, false);
                XMLStreamReader xsr = xif.createXMLStreamReader(new StreamSource(httpServletRequest.getInputStream()));
                jaxbContext = JAXBContext.newInstance(RestVariableCollection.class);
                Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
                RestVariableCollection restVariableCollection = (RestVariableCollection) jaxbUnmarshaller.unmarshal(xsr);
                if (restVariableCollection == null) {
                    throw new ActivitiIllegalArgumentException("xml request body could not be transformed to a " + "RestVariable Collection instance.");
                }
                List<RestVariable> restVariableList = restVariableCollection.getRestVariables();
                if (restVariableList.size() == 0) {
                    throw new ActivitiIllegalArgumentException("xml request body could not identify any rest " + "variables to be updated");
                }
                for (RestVariable restVariable : restVariableList) {
                    inputVariables.add(restVariable);
                }
            } catch (JAXBException | IOException e) {
                throw new ActivitiIllegalArgumentException("xml request body could not be transformed to a " + "RestVariable instance.", e);
            }
        }
    } catch (Exception e) {
        throw new ActivitiIllegalArgumentException("Failed to serialize to a RestVariable instance", e);
    }
    if (inputVariables.size() == 0) {
        throw new ActivitiIllegalArgumentException("Request didn't contain a list of variables to create.");
    }
    RestVariable.RestVariableScope sharedScope = null;
    RestVariable.RestVariableScope varScope;
    Map<String, Object> variablesToSet = new HashMap<>();
    for (RestVariable var : inputVariables) {
        // Validate if scopes match
        varScope = var.getVariableScope();
        if (var.getName() == null) {
            throw new ActivitiIllegalArgumentException("Variable name is required");
        }
        if (varScope == null) {
            varScope = RestVariable.RestVariableScope.LOCAL;
        }
        if (sharedScope == null) {
            sharedScope = varScope;
        }
        if (varScope != sharedScope) {
            throw new ActivitiIllegalArgumentException("Only allowed to update multiple variables in the same scope.");
        }
        if (!override && hasVariableOnScope(execution, var.getName(), varScope)) {
            throw new BPMNConflictException("Variable '" + var.getName() + "' is already present on execution '" + execution.getId() + "'.");
        }
        RestResponseFactory restResponseFactory = new RestResponseFactory();
        Object actualVariableValue = restResponseFactory.getVariableValue(var);
        variablesToSet.put(var.getName(), actualVariableValue);
        resultVariables.add(restResponseFactory.createRestVariable(var.getName(), actualVariableValue, varScope, execution.getId(), variableType, false, uriInfo.getBaseUri().toString()));
    }
    if (!variablesToSet.isEmpty()) {
        RuntimeService runtimeService = BPMNOSGIService.getRuntimeService();
        if (sharedScope == RestVariable.RestVariableScope.LOCAL) {
            runtimeService.setVariablesLocal(execution.getId(), variablesToSet);
        } else {
            if (execution.getParentId() != null) {
                // Explicitly set on parent, setting non-local variables on execution itself will override local-variables if exists
                runtimeService.setVariables(execution.getParentId(), variablesToSet);
            } else {
                // Standalone task, no global variables possible
                throw new ActivitiIllegalArgumentException("Cannot set global variables on execution '" + execution.getId() + "', task is not part of process.");
            }
        }
    }
    RestVariableCollection restVariableCollection = new RestVariableCollection();
    restVariableCollection.setRestVariables(resultVariables);
    responseBuilder.entity(restVariableCollection);
    // }
    return responseBuilder.status(Response.Status.CREATED).build();
}

Example 5 with RestVariable

use of org.wso2.carbon.bpmn.rest.engine.variable.RestVariable in project carbon-business-process by wso2.

the class ProcessInstanceService method addLocalVariables.

protected void addLocalVariables(Execution execution, int variableType, Map<String, RestVariable> variableMap) {
    RuntimeService runtimeService = BPMNOSGIService.getRuntimeService();
    Map<String, Object> rawLocalvariables = runtimeService.getVariablesLocal(execution.getId());
    List<RestVariable> localVariables = new RestResponseFactory().createRestVariables(rawLocalvariables, execution.getId(), variableType, RestVariable.RestVariableScope.LOCAL, uriInfo.getBaseUri().toString());
    for (RestVariable var : localVariables) {
        variableMap.put(var.getName(), var);
    }
}