Examples with WorkflowInstance org.alfresco.service.cmr.workflow.WorkflowInstance used on opensource projects

Example 56 with WorkflowInstance

use of org.alfresco.service.cmr.workflow.WorkflowInstance in project alfresco-repository by Alfresco.

the class WorkflowInterpreter method executeCommand.

/**
 * Execute a single command using the BufferedReader passed in for any data needed.
 *
 * TODO: Use decent parser!
 *
 * @param line The unparsed command
 * @return The textual output of the command.
 */
@Override
protected String executeCommand(String line) throws IOException {
    String[] command = line.split(" ");
    if (command.length == 0) {
        command = new String[1];
        command[0] = line;
    }
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    PrintStream out = new PrintStream(bout);
    // repeat last command?
    if (command[0].equals("r")) {
        if (lastCommand == null) {
            return "No command entered yet.";
        }
        return "repeating command " + lastCommand + "\n\n" + executeCommand(lastCommand);
    }
    // remember last command
    lastCommand = line;
    // execute command
    if (command[0].equals("help")) {
        String helpFile = I18NUtil.getMessage("workflow_console.help");
        ClassPathResource helpResource = new ClassPathResource(helpFile);
        byte[] helpBytes = new byte[500];
        InputStream helpStream = helpResource.getInputStream();
        try {
            int read = helpStream.read(helpBytes);
            while (read != -1) {
                bout.write(helpBytes, 0, read);
                read = helpStream.read(helpBytes);
            }
        } finally {
            helpStream.close();
        }
    } else if (command[0].equals("show")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        } else if (command[1].equals("file")) {
            if (command.length != 3) {
                return "Syntax Error.\n";
            }
            ClassPathResource file = new ClassPathResource(command[2]);
            InputStream fileStream = file.getInputStream();
            byte[] fileBytes = new byte[500];
            try {
                int read = fileStream.read(fileBytes);
                while (read != -1) {
                    bout.write(fileBytes, 0, read);
                    read = fileStream.read(fileBytes);
                }
            } finally {
                fileStream.close();
            }
            out.println();
        } else if (command[1].equals("definitions")) {
            List<WorkflowDefinition> defs = null;
            if (command.length == 3) {
                if (command[2].equals("all")) {
                    defs = workflowService.getAllDefinitions();
                } else {
                    return "Syntax Error.\n";
                }
            } else {
                defs = workflowService.getDefinitions();
            }
            for (WorkflowDefinition def : defs) {
                out.println("id: " + def.getId() + " , name: " + def.getName() + " , title: " + def.getTitle() + " , version: " + def.getVersion());
            }
        } else if (command[1].equals("workflows")) {
            String id = (currentWorkflowDef != null) ? currentWorkflowDef.getId() : null;
            if (id == null && command.length == 2) {
                return "workflow definition not in use.  Enter command 'show workflows all' or 'use <workflowDefId>'.\n";
            }
            if (command.length == 3) {
                if (command[2].equals("all")) {
                    id = "all";
                } else {
                    return "Syntax Error.\n";
                }
            }
            if ("all".equals(id)) {
                for (WorkflowDefinition def : workflowService.getAllDefinitions()) {
                    List<WorkflowInstance> workflows = workflowService.getActiveWorkflows(def.getId());
                    for (WorkflowInstance workflow : workflows) {
                        out.println("id: " + workflow.getId() + " , desc: " + workflow.getDescription() + " , start date: " + workflow.getStartDate() + " , def: " + workflow.getDefinition().getName() + " v" + workflow.getDefinition().getVersion());
                    }
                }
            } else {
                List<WorkflowInstance> workflows = workflowService.getActiveWorkflows(id);
                for (WorkflowInstance workflow : workflows) {
                    out.println("id: " + workflow.getId() + " , desc: " + workflow.getDescription() + " , start date: " + workflow.getStartDate() + " , def: " + workflow.getDefinition().getName());
                }
            }
        } else if (command[1].equals("paths")) {
            String workflowId = (command.length == 3) ? command[2] : (currentPath == null) ? null : currentPath.getInstance().getId();
            if (workflowId == null) {
                return "Syntax Error.  Workflow Id not specified.\n";
            }
            List<WorkflowPath> paths = workflowService.getWorkflowPaths(workflowId);
            for (WorkflowPath path : paths) {
                out.println("path id: " + path.getId() + " , node: " + path.getNode().getName());
            }
        } else if (command[1].equals("tasks")) {
            String pathId = (command.length == 3) ? command[2] : (currentPath == null) ? null : currentPath.getId();
            if (pathId == null) {
                return "Syntax Error.  Path Id not specified.\n";
            }
            List<WorkflowTask> tasks = workflowService.getTasksForWorkflowPath(pathId);
            for (WorkflowTask task : tasks) {
                out.println("task id: " + task.getId() + " , name: " + task.getName() + " , properties: " + task.getProperties().size());
            }
        } else if (command[1].equals("transitions")) {
            String workflowId = (command.length == 3) ? command[2] : (currentPath == null) ? null : currentPath.getInstance().getId();
            if (workflowId == null) {
                return "Syntax Error.  Workflow Id not specified.\n";
            }
            List<WorkflowPath> paths = workflowService.getWorkflowPaths(workflowId);
            if (paths.size() == 0) {
                out.println("no further transitions");
            }
            for (WorkflowPath path : paths) {
                out.println("path: " + path.getId() + " , node: " + path.getNode().getName() + " , active: " + path.isActive());
                List<WorkflowTask> tasks = workflowService.getTasksForWorkflowPath(path.getId());
                for (WorkflowTask task : tasks) {
                    out.println(" task id: " + task.getId() + " , name: " + task.getName() + ", title: " + task.getTitle() + " , desc: " + task.getDescription() + " , properties: " + task.getProperties().size());
                }
                for (WorkflowTransition transition : path.getNode().getTransitions()) {
                    out.println(" transition id: " + ((transition.getId() == null || transition.getId().equals("")) ? "[default]" : transition.getId()) + " , title: " + transition.getTitle());
                }
            }
        } else if (command[1].equals("timers")) {
            String id = (currentWorkflowDef != null) ? currentWorkflowDef.getId() : null;
            if (id == null && command.length == 2) {
                return "workflow definition not in use.  Enter command 'show timers all' or 'use <workflowDefId>'.\n";
            }
            if (command.length == 3) {
                if (command[2].equals("all")) {
                    id = "all";
                } else {
                    return "Syntax Error.\n";
                }
            }
            List<WorkflowTimer> timers = new ArrayList<WorkflowTimer>();
            if ("all".equals(id)) {
                for (WorkflowDefinition def : workflowService.getAllDefinitions()) {
                    List<WorkflowInstance> workflows = workflowService.getActiveWorkflows(def.getId());
                    for (WorkflowInstance workflow : workflows) {
                        timers.addAll(workflowService.getTimers(workflow.getId()));
                    }
                }
            } else {
                List<WorkflowInstance> workflows = workflowService.getActiveWorkflows(id);
                for (WorkflowInstance workflow : workflows) {
                    timers.addAll(workflowService.getTimers(workflow.getId()));
                }
            }
            for (WorkflowTimer timer : timers) {
                out.print("id: " + timer.getId() + " , name: " + timer.getName() + " , due date: " + timer.getDueDate() + " , path: " + timer.getPath().getId() + " , node: " + timer.getPath().getNode().getName() + " , process: " + timer.getPath().getInstance().getId());
                if (timer.getTask() != null) {
                    out.print(" , task: " + timer.getTask().getName() + "(" + timer.getTask().getId() + ")");
                }
                out.println();
                if (timer.getError() != null) {
                    out.println("error executing timer id " + timer.getId());
                    out.println(timer.getError());
                }
            }
        } else if (command[1].equals("my")) {
            if (command.length != 3) {
                return "Syntax Error.\n";
            }
            if (command[2].equals("tasks")) {
                out.println(AuthenticationUtil.getRunAsUser() + ":");
                List<WorkflowTask> tasks = workflowService.getAssignedTasks(AuthenticationUtil.getRunAsUser(), WorkflowTaskState.IN_PROGRESS);
                for (WorkflowTask task : tasks) {
                    out.println("id: " + task.getId() + " , name: " + task.getName() + " , properties: " + task.getProperties().size() + " , workflow: " + task.getPath().getInstance().getId() + " , path: " + task.getPath().getId());
                }
            } else if (command[2].equals("completed")) {
                out.println(AuthenticationUtil.getRunAsUser() + ":");
                List<WorkflowTask> tasks = workflowService.getAssignedTasks(AuthenticationUtil.getRunAsUser(), WorkflowTaskState.COMPLETED);
                for (WorkflowTask task : tasks) {
                    out.println("id: " + task.getId() + " , name " + task.getName() + " , properties: " + task.getProperties().size() + " , workflow: " + task.getPath().getInstance().getId() + " , path: " + task.getPath().getId());
                }
            } else if (command[2].equals("pooled")) {
                out.println(AuthenticationUtil.getRunAsUser() + ":");
                List<WorkflowTask> tasks = workflowService.getPooledTasks(AuthenticationUtil.getRunAsUser());
                for (WorkflowTask task : tasks) {
                    out.println("id: " + task.getId() + " , name " + task.getName() + " , properties: " + task.getProperties().size() + " , workflow: " + task.getPath().getInstance().getId() + " , path: " + task.getPath().getId());
                }
            } else {
                return "Syntax Error.\n";
            }
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("desc")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("task")) {
            if (command.length != 3) {
                return "Syntax Error.\n";
            }
            WorkflowTask task = workflowService.getTaskById(command[2]);
            out.println("id: " + task.getId());
            out.println("name: " + task.getName());
            out.println("title: " + task.getTitle());
            out.println("description: " + task.getDescription());
            out.println("state: " + task.getState());
            out.println("path: " + task.getPath().getId());
            out.println("transitions: " + task.getDefinition().getNode().getTransitions().length);
            for (WorkflowTransition transition : task.getDefinition().getNode().getTransitions()) {
                out.println(" transition: " + ((transition.getId() == null || transition.getId().equals("")) ? "[default]" : transition.getId()) + " , title: " + transition.getTitle() + " , desc: " + transition.getDescription());
            }
            out.println("properties: " + task.getProperties().size());
            for (Map.Entry<QName, Serializable> prop : task.getProperties().entrySet()) {
                out.println(" " + prop.getKey() + " = " + prop.getValue());
            }
        } else if (command[1].equals("workflow")) {
            if (command.length != 3) {
                return "Syntax Error.\n";
            }
            WorkflowInstance workflow = workflowService.getWorkflowById(command[2]);
            out.println("definition: " + workflow.getDefinition().getName());
            out.println("id: " + workflow.getId());
            out.println("description: " + workflow.getDescription());
            out.println("active: " + workflow.isActive());
            out.println("start date: " + workflow.getStartDate());
            out.println("end date: " + workflow.getEndDate());
            out.println("initiator: " + workflow.getInitiator());
            out.println("context: " + workflow.getContext());
            out.println("package: " + workflow.getWorkflowPackage());
        } else if (command[1].equals("path")) {
            if (command.length != 3) {
                return "Syntax Error.\n";
            }
            Map<QName, Serializable> properties = workflowService.getPathProperties(command[2]);
            out.println("path: " + command[1]);
            out.println("properties: " + properties.size());
            for (Map.Entry<QName, Serializable> prop : properties.entrySet()) {
                out.println(" " + prop.getKey() + " = " + prop.getValue());
            }
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("query")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("task")) {
            // build query
            WorkflowTaskQuery query = new WorkflowTaskQuery();
            Map<QName, Object> taskProps = new HashMap<QName, Object>();
            Map<QName, Object> procProps = new HashMap<QName, Object>();
            for (int i = 2; i < command.length; i++) {
                String[] predicate = command[i].split("=");
                if (predicate.length == 1) {
                    return "Syntax Error.\n";
                }
                String[] predicateName = predicate[0].split("\\.");
                if (predicateName.length == 1) {
                    if (predicate[0].equals("taskId")) {
                        query.setTaskId(predicate[1]);
                    } else if (predicate[0].equals("taskState")) {
                        WorkflowTaskState state = WorkflowTaskState.valueOf(predicate[1]);
                        if (state == null) {
                            return "Syntax Error.  Unknown task state\n";
                        }
                        query.setTaskState(state);
                    } else if (predicate[0].equals("taskName")) {
                        query.setTaskName(QName.createQName(predicate[1], namespaceService));
                    } else if (predicate[0].equals("taskActor")) {
                        query.setActorId(predicate[1]);
                    } else if (predicate[0].equals("processId")) {
                        query.setProcessId(predicate[1]);
                    } else if (predicate[0].equals("processName")) {
                        query.setProcessName(QName.createQName(predicate[1], namespaceService));
                    } else if (predicate[0].equals("workflowDefinitionName")) {
                        query.setWorkflowDefinitionName(predicate[1]);
                    } else if (predicate[0].equals("processActive")) {
                        Boolean active = Boolean.valueOf(predicate[1]);
                        query.setActive(active);
                    } else if (predicate[0].equals("orderBy")) {
                        String[] orderBy = predicate[1].split(",");
                        WorkflowTaskQuery.OrderBy[] queryOrderBy = new WorkflowTaskQuery.OrderBy[orderBy.length];
                        for (int iOrderBy = 0; iOrderBy < orderBy.length; iOrderBy++) {
                            queryOrderBy[iOrderBy] = WorkflowTaskQuery.OrderBy.valueOf(orderBy[iOrderBy]);
                            if (queryOrderBy[iOrderBy] == null) {
                                return "Syntax Error.  Unknown orderBy.\n";
                            }
                        }
                        query.setOrderBy(queryOrderBy);
                    } else {
                        return "Syntax Error.  Unknown query predicate.\n";
                    }
                } else if (predicateName.length == 2) {
                    if (predicateName[0].equals("task")) {
                        taskProps.put(QName.createQName(predicateName[1], namespaceService), predicate[1]);
                    } else if (predicateName[0].equals("process")) {
                        procProps.put(QName.createQName(predicateName[1], namespaceService), predicate[1]);
                    } else {
                        return "Syntax Error.  Unknown query predicate.\n";
                    }
                } else {
                    return "Syntax Error.\n";
                }
            }
            if (taskProps.size() > 0) {
                query.setTaskCustomProps(taskProps);
            }
            if (procProps.size() > 0) {
                query.setProcessCustomProps(procProps);
            }
            // execute query
            List<WorkflowTask> tasks = workflowService.queryTasks(query);
            out.println("found " + tasks.size() + " tasks.");
            for (WorkflowTask task : tasks) {
                out.println("task id: " + task.getId() + " , name: " + task.getName() + " , properties: " + task.getProperties().size() + ", process id: " + task.getPath().getInstance());
            }
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("deploy")) {
        if (command.length != 3) {
            return "Syntax Error.\n";
        }
        ClassPathResource workflowDef = new ClassPathResource(command[2]);
        WorkflowDeployment deployment = workflowService.deployDefinition(command[1], workflowDef.getInputStream(), MimetypeMap.MIMETYPE_XML);
        WorkflowDefinition def = deployment.getDefinition();
        for (String problem : deployment.getProblems()) {
            out.println(problem);
        }
        out.println("deployed definition id: " + def.getId() + " , name: " + def.getName() + " , title: " + def.getTitle() + " , version: " + def.getVersion());
        currentDeployEngine = command[1];
        currentDeployResource = command[2];
        out.print(executeCommand("use definition " + def.getId()));
    } else if (command[0].equals("redeploy")) {
        if (currentDeployResource == null) {
            return "nothing to redeploy\n";
        }
        out.print(executeCommand("deploy " + currentDeployEngine + " " + currentDeployResource));
    } else if (command[0].equals("undeploy")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("definition")) {
            if (command.length == 3) {
                workflowService.undeployDefinition(command[2]);
                currentWorkflowDef = null;
                currentPath = null;
                out.print(executeCommand("show definitions"));
            } else if (command.length == 4) {
                if (command[2].equals("name")) {
                    out.print("undeploying...");
                    List<WorkflowDefinition> defs = workflowService.getAllDefinitionsByName(command[3]);
                    for (WorkflowDefinition def : defs) {
                        workflowService.undeployDefinition(def.getId());
                        out.print(" v" + def.getVersion());
                    }
                    out.println("");
                    currentWorkflowDef = null;
                    currentPath = null;
                    out.print(executeCommand("show definitions all"));
                } else {
                    return "Syntax Error.\n";
                }
            } else {
                return "Syntax Error.\n";
            }
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("use")) {
        if (command.length == 1) {
            out.println("definition: " + ((currentWorkflowDef == null) ? "None" : currentWorkflowDef.getId() + " , name: " + currentWorkflowDef.getTitle() + " , version: " + currentWorkflowDef.getVersion()));
            out.println("workflow: " + ((currentPath == null) ? "None" : currentPath.getInstance().getId() + " , active: " + currentPath.getInstance().isActive()));
            out.println("path: " + ((currentPath == null) ? "None" : currentPath.getId() + " , node: " + currentPath.getNode().getTitle()));
        } else if (command.length > 1) {
            if (command[1].equals("definition")) {
                if (command.length != 3) {
                    return "Syntax Error.\n";
                }
                WorkflowDefinition def = workflowService.getDefinitionById(command[2]);
                if (def == null) {
                    return "Not found.\n";
                }
                currentWorkflowDef = def;
                currentPath = null;
                out.print(executeCommand("use"));
            } else if (command[1].equals("workflow")) {
                if (command.length != 3) {
                    return "Syntax Error.\n";
                }
                WorkflowInstance instance = workflowService.getWorkflowById(command[2]);
                currentWorkflowDef = instance.getDefinition();
                currentPath = workflowService.getWorkflowPaths(instance.getId()).get(0);
                out.print(executeCommand("use"));
            } else {
                return "Syntax Error.\n";
            }
        }
    } else if (command[0].equals("user")) {
        if (command.length == 2) {
            if (tenantService.isEnabled()) {
                tenantService.checkDomainUser(command[1]);
            }
            NodeRef personRef = personService.getPerson(command[1]);
            if (personRef == null) {
                throw new WorkflowException("User " + command[1] + " does not exist.");
            }
            PersonInfo info = personService.getPerson(personRef);
            String userName = info.getUserName();
            setCurrentUserName(userName);
        }
        out.println("using user " + getCurrentUserName());
    } else if (command[0].equals("start")) {
        Map<QName, Serializable> params = new HashMap<QName, Serializable>();
        for (int i = 1; i < command.length; i++) {
            String[] param = command[i].split("=");
            QName qname = QName.createQName(param[0], namespaceService);
            if (param.length == 1) {
                if (!vars.containsKey(qname)) {
                    return "var " + qname + " not found.\n";
                }
                params.put(qname, vars.get(qname));
            } else if (param.length == 2) {
                params.put(qname, param[1]);
            } else {
                return "Syntax Error.\n";
            }
        }
        if (currentWorkflowDef == null) {
            return "Workflow definition not selected.\n";
        }
        setupStartTaskParameters(currentWorkflowDef.getStartTaskDefinition().metadata, params);
        WorkflowPath path = workflowService.startWorkflow(currentWorkflowDef.getId(), params);
        endStartTaskForPath(path);
        out.println("started workflow id: " + path.getInstance().getId() + " , def: " + path.getInstance().getDefinition().getTitle());
        currentPath = path;
        out.print(interpretCommand("show transitions"));
    } else if (command[0].equals("update")) {
        if (command.length < 3) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("task")) {
            if (command.length < 4) {
                return "Syntax Error.\n";
            }
            Map<QName, Serializable> params = new HashMap<QName, Serializable>();
            for (int i = 3; i < command.length; i++) {
                String[] param = command[i].split("=");
                QName qname = QName.createQName(param[0], namespaceService);
                if (param.length == 1) {
                    if (!vars.containsKey(qname)) {
                        return "var " + qname + " not found.\n";
                    }
                    params.put(qname, vars.get(qname));
                } else if (param.length == 2) {
                    params.put(qname, param[1]);
                } else {
                    return "Syntax Error.\n";
                }
            }
            WorkflowTask task = workflowService.updateTask(command[2], params, null, null);
            out.println("updated task id: " + command[2] + ", properties: " + task.getProperties().size());
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("signal")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        }
        WorkflowPath path = workflowService.signal(command[1], getTransition(command));
        out.println("signal sent - path id: " + path.getId());
        out.print(interpretCommand("show transitions"));
    } else if (command[0].equals("event")) {
        if (command.length < 3) {
            return "Syntax Error.\n";
        }
        WorkflowPath path = workflowService.fireEvent(command[1], command[2]);
        out.println("event " + command[2] + " fired - path id: " + path.getId());
        out.print(interpretCommand("show transitions"));
    } else if (command[0].equals("end")) {
        if (command.length < 3) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("task")) {
            WorkflowTask task = workflowService.endTask(command[2], (command.length == 4) ? command[3] : null);
            out.println("signal sent - path id: " + task.getPath().getId());
            // ACE-3137: "show transitions" will fail if we don't set the workflow path first.
            currentPath = task.getPath();
            out.print(interpretCommand("show transitions"));
        } else if (command[1].equals("workflow")) {
            String workflowId = (command.length == 3) ? command[2] : (currentPath == null) ? null : currentPath.getInstance().getId();
            if (workflowId == null) {
                return "Syntax Error.  Workflow Id not specified.\n";
            }
            workflowService.cancelWorkflow(workflowId);
            out.println("workflow " + workflowId + " cancelled.");
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("delete")) {
        if (command.length < 2) {
            return "Syntax Error.\n";
        }
        if (command[1].equals("workflow")) {
            String workflowId = (command.length == 3) ? command[2] : (currentPath == null) ? null : currentPath.getInstance().getId();
            if (workflowId == null) {
                return "Syntax Error.  Workflow Id not specified.\n";
            }
            workflowService.deleteWorkflow(workflowId);
            out.println("workflow " + workflowId + " deleted.");
        } else if (command[1].equals("all")) {
            if (command.length < 3) {
                return "Syntax Error.\n";
            }
            if (command[2].equals("workflows")) {
                if (command.length < 4) {
                    return "Enter the command 'delete all workflows imeanit' to really delete all workflows\n";
                }
                if (command[3].equals("imeanit")) {
                    for (WorkflowDefinition def : workflowService.getAllDefinitions()) {
                        List<WorkflowInstance> workflows = workflowService.getActiveWorkflows(def.getId());
                        for (WorkflowInstance workflow : workflows) {
                            workflowService.deleteWorkflow(workflow.getId());
                            out.println("workflow " + workflow.getId() + " deleted.");
                        }
                    }
                } else {
                    return "Syntax Error.\n";
                }
            } else {
                return "Syntax Error.\n";
            }
        } else {
            return "Syntax Error.\n";
        }
    } else if (command[0].equals("var")) {
        if (command.length == 1) {
            for (Map.Entry<QName, Serializable> entry : vars.entrySet()) {
                out.println(entry.getKey() + " = " + entry.getValue());
            }
        } else if (command.length == 2) {
            String[] param = command[1].split("=");
            if (param.length == 0) {
                return "Syntax Error.\n";
            }
            if (param.length == 1) {
                QName qname = QName.createQName(param[0], namespaceService);
                vars.remove(qname);
                out.println("deleted var " + qname);
            } else if (param.length == 2) {
                boolean multi = false;
                if (param[0].endsWith("*")) {
                    param[0] = param[0].substring(0, param[0].length() - 1);
                    multi = true;
                }
                QName qname = QName.createQName(param[0], namespaceService);
                String[] strValues = param[1].split(",");
                if (!multi && strValues.length > 1) {
                    return "Syntax Error.\n";
                }
                if (!multi) {
                    vars.put(qname, strValues[0]);
                } else {
                    List<String> values = new ArrayList<String>();
                    for (String strValue : strValues) {
                        values.add(strValue);
                    }
                    vars.put(qname, (Serializable) values);
                }
                out.println("set var " + qname + " = " + vars.get(qname));
            } else {
                return "Syntax Error.\n";
            }
        } else if (command.length == 4) {
            if (command[2].equals("person")) {
                boolean multi = false;
                if (command[1].endsWith("*")) {
                    command[1] = command[1].substring(0, command[1].length() - 1);
                    multi = true;
                }
                QName qname = QName.createQName(command[1], namespaceService);
                String[] strValues = command[3].split(",");
                if (!multi && strValues.length > 1) {
                    return "Syntax Error.\n";
                }
                if (!multi) {
                    NodeRef auth = personService.getPerson(strValues[0]);
                    vars.put(qname, auth);
                } else {
                    List<NodeRef> values = new ArrayList<NodeRef>();
                    for (String strValue : strValues) {
                        NodeRef auth = personService.getPerson(strValue);
                        values.add(auth);
                    }
                    vars.put(qname, (Serializable) values);
                }
                out.println("set var " + qname + " = " + vars.get(qname));
            } else if (command[2].equals("group")) {
                boolean multi = false;
                if (command[1].endsWith("*")) {
                    command[1] = command[1].substring(0, command[1].length() - 1);
                    multi = true;
                }
                QName qname = QName.createQName(command[1], namespaceService);
                String[] strValues = command[3].split(",");
                if (!multi && strValues.length > 1) {
                    return "Syntax Error.\n";
                }
                if (!multi) {
                    NodeRef auth = authorityDAO.getAuthorityNodeRefOrNull(strValues[0]);
                    if (auth == null) {
                        throw new WorkflowException("Group " + strValues[0] + " does not exist.");
                    }
                    vars.put(qname, auth);
                } else {
                    List<NodeRef> values = new ArrayList<NodeRef>();
                    for (String strValue : strValues) {
                        NodeRef auth = authorityDAO.getAuthorityNodeRefOrNull(strValue);
                        if (auth == null) {
                            throw new WorkflowException("Group " + strValue + " does not exist.");
                        }
                        values.add(auth);
                    }
                    vars.put(qname, (Serializable) values);
                }
                out.println("set var " + qname + " = " + vars.get(qname));
            } else if (command[2].equals("package")) {
                QName qname = QName.createQName(command[1], namespaceService);
                int number = new Integer(command[3]);
                NodeRef packageNodeRef = workflowService.createPackage(null);
                for (int i = 0; i < number; i++) {
                    FileInfo fileInfo = fileFolderService.create(packageNodeRef, "Content" + i, ContentModel.TYPE_CONTENT);
                    ContentWriter writer = fileFolderService.getWriter(fileInfo.getNodeRef());
                    writer.putContent("Content" + i);
                }
                vars.put(qname, packageNodeRef);
                out.println("set var " + qname + " = " + vars.get(qname));
            } else {
                return "Syntax Error.\n";
            }
        } else {
            return "Syntax Error.\n";
        }
    } else {
        return "Syntax Error.\n";
    }
    out.flush();
    String retVal = new String(bout.toByteArray());
    out.close();
    return retVal;
}