Examples with HumanTaskEngine org.wso2.carbon.humantask.core.engine.HumanTaskEngine used on opensource projects

Example 1 with HumanTaskEngine

use of org.wso2.carbon.humantask.core.engine.HumanTaskEngine in project carbon-business-process by wso2.

the class TaskOperationServiceImpl method loadTask.

public TTaskAbstract loadTask(URI taskIdURI) throws IllegalAccessFault {
    try {
        final Long taskId = validateTaskId(taskIdURI);
        TaskDAO task = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine().getScheduler().execTransaction(new Callable<TaskDAO>() {

            public TaskDAO call() throws Exception {
                HumanTaskEngine engine = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine();
                HumanTaskDAOConnection daoConn = engine.getDaoConnectionFactory().getConnection();
                TaskDAO task = daoConn.getTask(taskId);
                validateTaskTenant(task);
                return task;
            }
        });
        return TransformerUtils.transformTask(task, getCaller());
    } catch (Exception ex) {
        log.error(ex);
        throw new IllegalAccessFault(ex);
    }
}

Example 2 with HumanTaskEngine

use of org.wso2.carbon.humantask.core.engine.HumanTaskEngine in project carbon-business-process by wso2.

the class HTQueryBuildHelperImpl method getTaskDataById.

/**
 * @param taskId
 * @return all the task details for the given taskID
 * @throws IllegalAccessFault
 * @throws IllegalArgumentFault
 * @throws IllegalStateFault
 * @throws IllegalOperationFault
 * @throws URI.MalformedURIException
 */
public String[] getTaskDataById(String taskId) throws IllegalAccessFault, IllegalArgumentFault, IllegalStateFault, IllegalOperationFault, URI.MalformedURIException {
    String[] output = { "" };
    List<String> outputList = new ArrayList<>();
    TaskDAO task;
    URI uri = new URI(taskId);
    try {
        final Long validatedTaskId = validateTaskId(uri);
        task = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine().getScheduler().execTransaction(new Callable<TaskDAO>() {

            public TaskDAO call() throws Exception {
                HumanTaskEngine engine = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine();
                HumanTaskDAOConnection daoConn = engine.getDaoConnectionFactory().getConnection();
                TaskDAO task = daoConn.getTask(validatedTaskId);
                return task;
            }
        });
    } catch (Exception ex) {
        throw new IllegalAccessFault(ex);
    }
    GenericHumanRoleDAO.GenericHumanRoleType[] genericHumanRoleTypes = GenericHumanRoleDAO.GenericHumanRoleType.values();
    MessageDAO inputMessageDAO = task.getInputMessage();
    MessageDAO outputMessageDAO = task.getOutputMessage();
    String description = task.getTaskDescription("text/plain");
    String titleString = String.format("%1$-" + 25 + "s", "Task Name") + ":" + task.getName();
    outputList.add(titleString);
    for (int i = 0; i < genericHumanRoleTypes.length; i++) {
        List<OrganizationalEntityDAO> organizationalEntityDAOs = CommonTaskUtil.getOrgEntitiesForRole(task, genericHumanRoleTypes[i]);
        if (organizationalEntityDAOs.size() > 0) {
            String taskDataString = String.format("%1$-" + 25 + "s", genericHumanRoleTypes[i]) + ":";
            for (int j = 0; j < organizationalEntityDAOs.size(); j++) {
                taskDataString = taskDataString + organizationalEntityDAOs.get(j).getName() + " [" + organizationalEntityDAOs.get(j).getOrgEntityType() + "]  ";
            }
            outputList.add(taskDataString);
        }
    }
    if (description != null) {
        String taskDescriptionString = String.format("%1$-" + 25 + "s", "Task Description") + ":" + task.getTaskDescription("text/plain");
        outputList.add(taskDescriptionString);
    }
    Element inputBodyData = inputMessageDAO.getBodyData();
    if (inputBodyData != null) {
        String inputMsgStr = String.format("%1$-" + 25 + "s", "Task Input") + ":" + "\n" + DOMUtils.domToString(inputBodyData);
        outputList.add(inputMsgStr);
    }
    if (outputMessageDAO != null) {
        Element outputBodyData = outputMessageDAO.getBodyData();
        if (outputBodyData != null) {
            String outputMessageStr = String.format("%1$-" + 25 + "s", "Task Output") + ":" + "\n" + DOMUtils.domToString(outputBodyData);
            outputList.add(outputMessageStr);
        }
    }
    output = new String[outputList.size()];
    int i = 0;
    for (Object o : outputList) {
        output[i++] = o.toString();
    }
    return output;
}

Example 3 with HumanTaskEngine

use of org.wso2.carbon.humantask.core.engine.HumanTaskEngine in project carbon-business-process by wso2.

the class TaskOperationsImpl method addAttachment.

/**
 * Add attachment to a task. Returns an identifier for the attachment.
 * @param taskIdentifier : task identifier
 * @param name : attachment name
 * @param accessType : access type
 * @param contentType : content type
 * @param attachment : attachment ID (String)
 * @return
 * @throws IllegalStateFault
 * @throws IllegalOperationFault
 * @throws IllegalArgumentFault
 * @throws IllegalAccessFault
 */
public boolean addAttachment(URI taskIdentifier, String name, String accessType, String contentType, Object attachment) throws IllegalStateFault, IllegalOperationFault, IllegalArgumentFault, IllegalAccessFault {
    final Long taskId = validateTaskId(taskIdentifier);
    final String attachmentID = (String) attachment;
    try {
        Boolean isAdded = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine().getScheduler().execTransaction(new Callable<Boolean>() {

            public Boolean call() throws Exception {
                HumanTaskEngine engine = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine();
                HumanTaskDAOConnection daoConn = engine.getDaoConnectionFactory().getConnection();
                TaskDAO taskDAO = daoConn.getTask(taskId);
                validateTaskTenant(taskDAO);
                try {
                    boolean isAdded = taskDAO.addAttachment(TransformerUtils.generateAttachmentDAOFromID(taskDAO, attachmentID));
                    if (!isAdded) {
                        throw new HumanTaskException("Attachment with id: " + attachmentID + "was not associated " + "task with id:" + taskId);
                    }
                    return isAdded;
                } catch (HumanTaskException ex) {
                    String errMsg = "getAttachmentInfos operation failed. Reason: ";
                    log.error(errMsg + ex.getLocalizedMessage(), ex);
                    throw ex;
                }
            }
        });
        return isAdded;
    } catch (Exception ex) {
        handleException(ex);
    }
    return false;
}

Example 4 with HumanTaskEngine

use of org.wso2.carbon.humantask.core.engine.HumanTaskEngine in project carbon-business-process by wso2.

the class TaskOperationsImpl method authoriseToLoadTask.

/**
 * Throws an exception if the current user is not allowed to perform loadTask() operation
 * @param taskId
 */
private void authoriseToLoadTask(TaskDAO task) throws Exception {
    List<GenericHumanRoleDAO.GenericHumanRoleType> allowedRoles = new ArrayList<GenericHumanRoleDAO.GenericHumanRoleType>();
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.ACTUAL_OWNER);
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.BUSINESS_ADMINISTRATORS);
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.NOTIFICATION_RECIPIENTS);
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.POTENTIAL_OWNERS);
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.STAKEHOLDERS);
    allowedRoles.add(GenericHumanRoleDAO.GenericHumanRoleType.TASK_INITIATOR);
    HumanTaskEngine taskEngine = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine();
    PeopleQueryEvaluator pqe = taskEngine.getPeopleQueryEvaluator();
    OrganizationalEntityDAO invoker = taskEngine.getScheduler().execTransaction(new Callable<OrganizationalEntityDAO>() {

        @Override
        public OrganizationalEntityDAO call() throws Exception {
            return HumanTaskServiceComponent.getHumanTaskServer().getDaoConnectionFactory().getConnection().createNewOrgEntityObject(getCaller(), OrganizationalEntityDAO.OrganizationalEntityType.USER);
        }
    });
    if (!OperationAuthorizationUtil.authoriseUser(task, invoker, allowedRoles, pqe)) {
        String errorMsg = String.format("The user[%s] cannot perform loadTask()" + " operation as either he is in EXCLUDED_OWNERS role or he is not in task roles [%s]", invoker.getName(), allowedRoles);
        log.error(errorMsg);
        throw new HumanTaskIllegalAccessException("Access Denied. You are not authorized to perform this task");
    }
}

Example 5 with HumanTaskEngine

use of org.wso2.carbon.humantask.core.engine.HumanTaskEngine in project carbon-business-process by wso2.

the class HTRenderingApiImpl method getTaskDAO.

/**
 * Function to retrieve task DAO
 *
 * @param taskIdURI task ID
 * @return task DAO
 * @throws Exception
 * @throws IllegalArgumentException
 */
private TaskDAO getTaskDAO(URI taskIdURI) throws IllegalArgumentException, HumanTaskIllegalAccessException, Exception {
    final Long taskId = validateTaskId(taskIdURI);
    TaskDAO task = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine().getScheduler().execTransaction(new Callable<TaskDAO>() {

        public TaskDAO call() throws Exception {
            HumanTaskEngine engine = HumanTaskServiceComponent.getHumanTaskServer().getTaskEngine();
            HumanTaskDAOConnection daoConn = engine.getDaoConnectionFactory().getConnection();
            TaskDAO task = daoConn.getTask(taskId);
            validateTaskTenant(task);
            return task;
        }
    });
    return task;
}