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

Example 11 with RestVariable

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

the class ExecutionService method updateBinaryVariable.

@PUT
@Path("/{executionId}/variables/{variableName}")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response updateBinaryVariable(@PathParam("executionId") String executionId, @PathParam("variableName") String variableName, MultipartBody multipartBody) {
    Execution execution = getExecutionFromRequest(executionId);
    RestVariable result = createBinaryExecutionVariable(execution, RestResponseFactory.VARIABLE_EXECUTION, uriInfo, false, multipartBody);
    return Response.ok().status(Response.Status.CREATED).entity(result).build();
}

Example 12 with RestVariable

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

the class WorkflowTaskService method createTaskVariable.

@POST
@Path("/{taskId}/variables")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public Response createTaskVariable(@PathParam("taskId") String taskId, @Context HttpServletRequest httpServletRequest) {
    Task task = getTaskFromRequest(taskId);
    List<RestVariable> inputVariables = new ArrayList<>();
    List<RestVariable> resultVariables = new ArrayList<>();
    Response.ResponseBuilder responseBuilder = Response.ok();
    try {
        if (Utils.isApplicationJsonRequest(httpServletRequest)) {
            try {
                @SuppressWarnings("unchecked") List<Object> variableObjects = (List<Object>) new ObjectMapper().readValue(httpServletRequest.getInputStream(), List.class);
                for (Object restObject : variableObjects) {
                    RestVariable restVariable = new ObjectMapper().convertValue(restObject, RestVariable.class);
                    inputVariables.add(restVariable);
                }
            } catch (IOException e) {
                throw new ActivitiIllegalArgumentException("request body could not be transformed to a RestVariable " + "instance.", e);
            }
        } else if (Utils.isApplicationXmlRequest(httpServletRequest)) {
            JAXBContext jaxbContext = null;
            try {
                jaxbContext = JAXBContext.newInstance(RestVariableCollection.class);
                Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
                RestVariableCollection restVariableCollection = (RestVariableCollection) jaxbUnmarshaller.unmarshal(getXMLReader(httpServletRequest.getInputStream()));
                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 = null;
    Map<String, Object> variablesToSet = new HashMap<>();
    RestResponseFactory restResponseFactory = new RestResponseFactory();
    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 (hasVariableOnScope(task, var.getName(), varScope)) {
            throw new BPMNConflictException("Variable '" + var.getName() + "' is already present on task '" + task.getId() + "'.");
        }
        Object actualVariableValue = restResponseFactory.getVariableValue(var);
        variablesToSet.put(var.getName(), actualVariableValue);
        resultVariables.add(restResponseFactory.createRestVariable(var.getName(), actualVariableValue, varScope, task.getId(), RestResponseFactory.VARIABLE_TASK, false, uriInfo.getBaseUri().toString()));
    }
    RuntimeService runtimeService = BPMNOSGIService.getRuntimeService();
    TaskService taskService = BPMNOSGIService.getTaskService();
    if (!variablesToSet.isEmpty()) {
        if (sharedScope == RestVariable.RestVariableScope.LOCAL) {
            taskService.setVariablesLocal(task.getId(), variablesToSet);
        } else {
            if (task.getExecutionId() != null) {
                // Explicitly set on execution, setting non-local variables on task will override local-variables if exists
                runtimeService.setVariables(task.getExecutionId(), variablesToSet);
            } else {
                // Standalone task, no global variables possible
                throw new ActivitiIllegalArgumentException("Cannot set global variables on task '" + task.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 13 with RestVariable

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

the class WorkflowTaskService method getVariableData.

@GET
@Path("/{taskId}/variables/{variableName}/data")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public Response getVariableData(@PathParam("taskId") String taskId, @PathParam("variableName") String variableName) {
    String scope = uriInfo.getQueryParameters().getFirst("scope");
    Response.ResponseBuilder responseBuilder = Response.ok();
    try {
        byte[] result = null;
        RestVariable variable = getVariableFromRequest(taskId, variableName, scope, true, uriInfo.getBaseUri().toString());
        if (RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE.equals(variable.getType())) {
            result = (byte[]) variable.getValue();
            responseBuilder.type(MediaType.APPLICATION_OCTET_STREAM);
        } else if (RestResponseFactory.SERIALIZABLE_VARIABLE_TYPE.equals(variable.getType())) {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutputStream outputStream = new ObjectOutputStream(buffer);
            outputStream.writeObject(variable.getValue());
            outputStream.close();
            result = buffer.toByteArray();
            responseBuilder.type("application/x-java-serialized-object");
        } else {
            throw new ActivitiObjectNotFoundException("The variable does not have a binary data stream.", null);
        }
        return responseBuilder.entity(result).build();
    } catch (IOException ioe) {
        // Re-throw IOException
        throw new ActivitiException("Unexpected error getting variable data", ioe);
    }
}

Example 14 with RestVariable

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

the class WorkflowTaskService method setSimpleVariable.

protected RestVariable setSimpleVariable(RestVariable restVariable, Task task, boolean isNew) {
    if (restVariable.getName() == null) {
        throw new ActivitiIllegalArgumentException("Variable name is required");
    }
    // Figure out scope, revert to local is omitted
    RestVariable.RestVariableScope scope = restVariable.getVariableScope();
    if (scope == null) {
        scope = RestVariable.RestVariableScope.LOCAL;
    }
    RestResponseFactory restResponseFactory = new RestResponseFactory();
    Object actualVariableValue = restResponseFactory.getVariableValue(restVariable);
    setVariable(task, restVariable.getName(), actualVariableValue, scope, isNew);
    return restResponseFactory.createRestVariable(restVariable.getName(), actualVariableValue, scope, task.getId(), RestResponseFactory.VARIABLE_TASK, false, uriInfo.getBaseUri().toString());
}

Example 15 with RestVariable

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

the class HistoricDetailService method getVariableData.

@GET
@Path("/{detailId}/data")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public Response getVariableData(@PathParam("detailId") String detailId) {
    try {
        byte[] result = null;
        RestVariable variable = getVariableFromRequest(true, detailId);
        Response.ResponseBuilder response = Response.ok();
        if (RestResponseFactory.BYTE_ARRAY_VARIABLE_TYPE.equals(variable.getType())) {
            result = (byte[]) variable.getValue();
            response.type("application/octet-stream");
        } else if (RestResponseFactory.SERIALIZABLE_VARIABLE_TYPE.equals(variable.getType())) {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutputStream outputStream = new ObjectOutputStream(buffer);
            outputStream.writeObject(variable.getValue());
            outputStream.close();
            result = buffer.toByteArray();
            response.type("application/x-java-serialized-object");
        } else {
            throw new ActivitiObjectNotFoundException("The variable does not have a binary data stream.", null);
        }
        return response.entity(result).build();
    } catch (IOException ioe) {
        // Re-throw IOException
        throw new ActivitiException("Unexpected exception getting variable data", ioe);
    }
}