Examples with RestException org.camunda.bpm.engine.rest.exception.RestException used on opensource projects

Example 11 with RestException

use of org.camunda.bpm.engine.rest.exception.RestException in project camunda-bpm-platform by camunda.

the class ProcessDefinitionResourceImpl method startProcessInstance.

@Override
public ProcessInstanceDto startProcessInstance(UriInfo context, StartProcessInstanceDto parameters) {
    ProcessInstanceWithVariables instance = null;
    try {
        instance = startProcessInstanceAtActivities(parameters);
    } catch (AuthorizationException e) {
        throw e;
    } catch (ProcessEngineException e) {
        String errorMessage = String.format("Cannot instantiate process definition %s: %s", processDefinitionId, e.getMessage());
        throw new RestException(Status.INTERNAL_SERVER_ERROR, e, errorMessage);
    } catch (RestException e) {
        String errorMessage = String.format("Cannot instantiate process definition %s: %s", processDefinitionId, e.getMessage());
        throw new InvalidRequestException(e.getStatus(), e, errorMessage);
    }
    ProcessInstanceDto result;
    if (parameters.isWithVariablesInReturn()) {
        result = ProcessInstanceWithVariablesDto.fromProcessInstance(instance);
    } else {
        result = ProcessInstanceDto.fromProcessInstance(instance);
    }
    URI uri = context.getBaseUriBuilder().path(rootResourcePath).path(ProcessInstanceRestService.PATH).path(instance.getId()).build();
    result.addReflexiveLink(uri, HttpMethod.GET, "self");
    return result;
}

Example 12 with RestException

use of org.camunda.bpm.engine.rest.exception.RestException in project camunda-bpm-platform by camunda.

the class DecisionDefinitionResourceImpl method getDecisionDefinitionDmnXml.

@Override
public DecisionDefinitionDiagramDto getDecisionDefinitionDmnXml() {
    InputStream decisionModelInputStream = null;
    try {
        decisionModelInputStream = engine.getRepositoryService().getDecisionModel(decisionDefinitionId);
        byte[] decisionModel = IoUtil.readInputStream(decisionModelInputStream, "decisionModelDmnXml");
        return DecisionDefinitionDiagramDto.create(decisionDefinitionId, new String(decisionModel, "UTF-8"));
    } catch (NotFoundException e) {
        throw new InvalidRequestException(Status.NOT_FOUND, e, e.getMessage());
    } catch (NotValidException e) {
        throw new InvalidRequestException(Status.BAD_REQUEST, e, e.getMessage());
    } catch (ProcessEngineException e) {
        throw new RestException(Status.INTERNAL_SERVER_ERROR, e);
    } catch (UnsupportedEncodingException e) {
        throw new RestException(Status.INTERNAL_SERVER_ERROR, e);
    } finally {
        IoUtil.closeSilently(decisionModelInputStream);
    }
}

Example 13 with RestException

use of org.camunda.bpm.engine.rest.exception.RestException in project camunda-bpm-platform by camunda.

the class TaskResourceImpl method resolve.

@Override
public void resolve(CompleteTaskDto dto) {
    TaskService taskService = engine.getTaskService();
    try {
        VariableMap variables = VariableValueDto.toMap(dto.getVariables(), engine, objectMapper);
        taskService.resolveTask(taskId, variables);
    } catch (RestException e) {
        String errorMessage = String.format("Cannot resolve task %s: %s", taskId, e.getMessage());
        throw new InvalidRequestException(e.getStatus(), e, errorMessage);
    }
}

Example 14 with RestException

use of org.camunda.bpm.engine.rest.exception.RestException in project camunda-bpm-platform by camunda.

the class TaskResourceImpl method getForm.

@Override
public FormDto getForm() {
    FormService formService = engine.getFormService();
    Task task = getTaskById(taskId);
    FormData formData;
    try {
        formData = formService.getTaskFormData(taskId);
    } catch (AuthorizationException e) {
        throw e;
    } catch (ProcessEngineException e) {
        throw new RestException(Status.BAD_REQUEST, e, "Cannot get form for task " + taskId);
    }
    FormDto dto = FormDto.fromFormData(formData);
    if (dto.getKey() == null || dto.getKey().isEmpty()) {
        if (formData != null && formData.getFormFields() != null && !formData.getFormFields().isEmpty()) {
            dto.setKey("embedded:engine://engine/:engine/task/" + taskId + "/rendered-form");
        }
    }
    // to get the application context path it is necessary to
    // execute it without authentication (tries to fetch the
    // process definition), because:
    // - user 'demo' has READ permission on a specific task resource
    // - user 'demo' does not have a READ permission on the corresponding
    // process definition
    // -> running the following lines with authorization would lead
    // to an AuthorizationException because the user 'demo' does not
    // have READ permission on the corresponding process definition
    IdentityService identityService = engine.getIdentityService();
    Authentication currentAuthentication = identityService.getCurrentAuthentication();
    try {
        identityService.clearAuthentication();
        String processDefinitionId = task.getProcessDefinitionId();
        String caseDefinitionId = task.getCaseDefinitionId();
        if (processDefinitionId != null) {
            dto.setContextPath(ApplicationContextPathUtil.getApplicationPathByProcessDefinitionId(engine, processDefinitionId));
        } else if (caseDefinitionId != null) {
            dto.setContextPath(ApplicationContextPathUtil.getApplicationPathByCaseDefinitionId(engine, caseDefinitionId));
        }
    } finally {
        identityService.setAuthentication(currentAuthentication);
    }
    return dto;
}

Example 15 with RestException

use of org.camunda.bpm.engine.rest.exception.RestException in project camunda-bpm-platform by camunda.

the class CaseExecutionResourceImpl method initializeCommandWithVariables.

protected void initializeCommandWithVariables(CaseExecutionCommandBuilder commandBuilder, Map<String, TriggerVariableValueDto> variables, String transition) {
    for (String variableName : variables.keySet()) {
        try {
            TriggerVariableValueDto variableValue = variables.get(variableName);
            TypedValue typedValue = variableValue.toTypedValue(engine, objectMapper);
            if (variableValue.isLocal()) {
                commandBuilder.setVariableLocal(variableName, typedValue);
            } else {
                commandBuilder.setVariable(variableName, typedValue);
            }
        } catch (RestException e) {
            String errorMessage = String.format("Cannot %s case execution %s due to invalid variable %s: %s", transition, caseExecutionId, variableName, e.getMessage());
            throw new RestException(e.getStatus(), e, errorMessage);
        }
    }
}