Java Controller類代碼示例

import play.mvc.Controller; //導入依賴的package包/類
@Override
public Html renderFormField(II18nMessagesPlugin i18nMessagesPlugin, IUserSessionManagerPlugin userSessionManagerPlugin,
        IImplementationDefinedObjectService implementationDefinedObjectService, Field field, boolean displayDescription) {

    String description = "";
    if (displayDescription) {
        description = Msg.get(customAttributeDefinition.description);
    }

    String uid = userSessionManagerPlugin.getUserSessionId(Controller.ctx());

    return views.html.framework_views.parts.checkboxlist.render(field, Msg.get(customAttributeDefinition.name), description,
            customAttributeDefinition.getValueHoldersCollectionFromNameForDynamicMultiItemCustomAttribute(i18nMessagesPlugin, uid), true, false,
            customAttributeDefinition.isRequired());

}
 

import play.mvc.Controller; //導入依賴的package包/類
@Transactional
  @BodyParser.Of(BodyParser.Json.class)
  public Result save() {
  	
  	Cidadao cidadao = daoCidadao
		.find(UUID.fromString(request().username()));
if (!cidadao.isFuncionario()) {
	return unauthorized("Cidadão não autorizado");
}
  	
      Form<Mensagem> form = formFactory.form(Mensagem.class).bindFromRequest();
      if (form.hasErrors()) {
          String recebido = Controller.request().body().asJson().toString();
          if (recebido.length() > 30) {
              recebido = recebido.substring(0, 30) + "...";
          }
          Logger.debug("Submissão com erros: " + recebido + "; Erros: " + form.errorsAsJson());
          return badRequest(form.errorsAsJson());
      }
      
      Mensagem mensagem = daoMensagem.create(form.get());
      mensagem.setAutor(cidadao.getMinisterioDeAfiliacao());
      
      return created(toJson(mensagem));
  }
 

import play.mvc.Controller; //導入依賴的package包/類
/**
 * Log the exception and return a generic error message.
 * 
 * @param e
 *            an exception
 * @param message
 *            a specific message to be added to the error log
 * @param log
 *            a log instance
 * @param configuration
 *            the Play configuration service
 * @param messagePlugin
 *            the i18n messages service
 */
public static Result logAndReturnUnexpectedError(Exception e, String message, Logger.ALogger log, Configuration configuration,
        II18nMessagesPlugin messagePlugin) {
    try {
        String uuid = UUID.randomUUID().toString();
        log.error("Unexpected error with uuid " + uuid + (message != null ? " from " + message : ""), e);
        if (configuration.getBoolean("maf.unexpected.error.trace")) {
            String stackTrace = Utilities.getExceptionAsString(e);
            return Controller.internalServerError(
                    views.html.error.unexpected_error_with_stacktrace.render(messagePlugin.get("unexpected.error.title"), uuid, stackTrace));
        }
        return Controller.internalServerError(views.html.error.unexpected_error.render(messagePlugin.get("unexpected.error.title"), uuid));
    } catch (Exception exp) {
        System.err.println("Unexpected error in logAndReturnUnexpectedError : prevent looping");
        return Controller.internalServerError("Unexpected error");
    }
}
 

import play.mvc.Controller; //導入依賴的package包/類
@Override
public Html renderFormField(II18nMessagesPlugin i18nMessagesPlugin, IUserSessionManagerPlugin userSessionManagerPlugin,
        IImplementationDefinedObjectService implementationDefinedObjectService, Field field, boolean displayDescription) {

    String description = "";
    if (displayDescription) {
        description = Msg.get(customAttributeDefinition.description);
    }

    if (!customAttributeDefinition.isAutoComplete()) {
        String uid = userSessionManagerPlugin.getUserSessionId(Controller.ctx());
        return views.html.framework_views.parts.dropdownlist.render(field, Msg.get(customAttributeDefinition.name),
                customAttributeDefinition.getValueHoldersCollectionFromNameForDynamicSingleItemCustomAttribute(i18nMessagesPlugin, "%", uid), description,
                true, customAttributeDefinition.isRequired(), false, false);
    }
    return views.html.framework_views.parts.autocomplete.render(field, Msg.get(customAttributeDefinition.name), description,
            implementationDefinedObjectService.getRouteForDynamicSingleCustomAttributeApi().url(),
            customAttributeDefinition.getContextParametersForDynamicApi());
}
 

import play.mvc.Controller; //導入依賴的package包/類
/**
 * Return the response to a request for the initial values to be displayed
 * 
 * @return a JSON response
 */
public Result getInitialValueResponse(JsonNode json) {
    ObjectNode result = Json.newObject();

    // Get the values passed as parameters
    ArrayList<T> values = new ArrayList<T>();
    JsonNode valuesNode = json.get("values");
    if (valuesNode != null) {
        for (JsonNode node : valuesNode) {
            values.add(convertNodeToT(node));
        }
    }

    // Get context parameters
    HashMap<String, String> context = extractContextFromJsonRequest(json);

    // Create the return structure
    ISelectableValueHolderCollection<T> valueHolders = getHandle().getInitialValueHolders(values, context);
    valueHolderCollectionToJson(result, valueHolders);

    return Controller.ok(result);
}
 

import play.mvc.Controller; //導入依賴的package包/類
/**
 * This method is to be integrated within a controller.<br/>
 * It looks for the specified attachment and returns it if the user is
 * allowed to access it.
 * 
 * @param attachmentId
 *            the id of an attachment
 * @param attachmentManagerPlugin
 *            the service which is managing attachments
 * @param sessionManagerPlugin
 *            the service which is managing user sessions
 * @return the attachment as a stream
 */
public static Result downloadFileAttachment(Long attachmentId, IAttachmentManagerPlugin attachmentManagerPlugin,
        IUserSessionManagerPlugin sessionManagerPlugin) {
    @SuppressWarnings("unchecked")
    Set<Long> allowedIds = (Set<Long>) Cache
            .get(IFrameworkConstants.ATTACHMENT_READ_AUTHZ_CACHE_PREFIX + sessionManagerPlugin.getUserSessionId(Controller.ctx()));
    if (allowedIds != null && allowedIds.contains(attachmentId)) {
        try {
            Attachment attachment = attachmentManagerPlugin.getAttachmentFromId(attachmentId);

            if (attachment.mimeType.equals(FileAttachmentHelper.FileType.URL.name())) {
                return Controller.redirect(attachment.path);
            } else {
                Controller.response().setHeader("Content-Disposition", "attachment; filename=\"" + attachment.name + "\"");
                return Controller.ok(attachmentManagerPlugin.getAttachmentContent(attachmentId));
            }
        } catch (IOException e) {
            log.error("Error while retreiving the attachment content for " + attachmentId);
            return Controller.badRequest();
        }
    }
    return Controller.badRequest();
}
 

import play.mvc.Controller; //導入依賴的package包/類
/**
 * This method is to be integrated within a controller.<br/>
 * It looks for the specified attachment and delete it if the user is
 * allowed to erase it.<br/>
 * It is to be called by an AJAX GET with a single attribute : the id of the
 * attachment.
 *
 * @param attachmentId
 *            the id of an attachment
 * @param attachmentManagerPlugin
 *            the service which is managing attachments
 * @param sessionManagerPlugin
 *            the service which is managing user sessions
 * @return the result
 */
public static Result deleteFileAttachment(Long attachmentId, IAttachmentManagerPlugin attachmentManagerPlugin,
        IUserSessionManagerPlugin sessionManagerPlugin) {
    @SuppressWarnings("unchecked")
    Set<Long> allowedIds = (Set<Long>) Cache
            .get(IFrameworkConstants.ATTACHMENT_WRITE_AUTHZ_CACHE_PREFIX + sessionManagerPlugin.getUserSessionId(Controller.ctx()));
    if (allowedIds != null && allowedIds.contains(attachmentId)) {
        try {
            attachmentManagerPlugin.deleteAttachment(attachmentId);
            return Controller.ok();
        } catch (IOException e) {
            log.error("Error while deleting the attachment content for " + attachmentId);
            return Controller.badRequest();
        }
    }
    return Controller.badRequest();
}
 

import play.mvc.Controller; //導入依賴的package包/類
@Override
public Result getJsonResponse(Object obj, int code, Response response) {
    StringWriter w = new StringWriter();
    try {
        getMapper().writeValue(w, obj);
    } catch (Exception e) {
        String message = "Error while marshalling the application response";
        ApiLog.log.error(message, e);
        try {
            getMapper().writeValue(w, new ApiError(message));
        } catch (Exception exp) {
            throw new RuntimeException("Unexpected error while mashalling an ApiError message");
        }
        code = ERROR_API_RESPONSE_CODE;
    }
    response.setContentType("application/json");
    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader("Access-Control-Allow-Headers", authorizedHeaders);
    return Controller.status(code, w.toString());
}
 

import play.mvc.Controller; //導入依賴的package包/類
@Override
public Promise<Result> execute(String path, Context ctx) {
    for (WebCommand webCommand : webCommands) {
        if (webCommand.isCompatible(path, ctx)) {
            try {
                return webCommand.call(path, ctx);
            } catch (Exception e) {
                log.error("Error while calling the web command", e);
                return Promise.promise(() -> Controller.badRequest());
            }
        }
    }
    log.info("No compatible command found for path " + path);
    if (log.isDebugEnabled()) {
        log.debug("No compatible command found for path " + path);
    }
    return Promise.promise(() -> Controller.badRequest());
}
 

import play.mvc.Controller; //導入依賴的package包/類
public static ObjectType get(Class<? extends Controller> controllerClass) {
    Class<? extends Model> entityClass = getEntityClassForController(controllerClass);
    if (entityClass == null || !Model.class.isAssignableFrom(entityClass)) {
        return null;
    }
    ObjectType type;
    try {
        type = (ObjectType) Java.invokeStaticOrParent(controllerClass, "createObjectType", entityClass);
    } catch (Exception e) {
        Logger.error(e, "Couldn't create an ObjectType. Use default one.");
        type = new ObjectType(entityClass);
    }
    type.name = controllerClass.getSimpleName().replace("$", "");
    type.controllerName = controllerClass.getSimpleName().toLowerCase().replace("$", "");
    type.controllerClass = controllerClass;
    return type;
}
 

import play.mvc.Controller; //導入依賴的package包/類
@SuppressWarnings("unchecked")
public static Class<? extends Model> getEntityClassForController(Class<? extends Controller> controllerClass) {
    if (controllerClass.isAnnotationPresent(For.class)) {
        return controllerClass.getAnnotation(For.class).value();
    }
    for(Type it : controllerClass.getGenericInterfaces()) {
        if(it instanceof ParameterizedType) {
            ParameterizedType type = (ParameterizedType)it;
            if (((Class<?>)type.getRawType()).getSimpleName().equals("CRUDWrapper")) {
                return (Class<? extends Model>)type.getActualTypeArguments()[0];
            }
        }
    }
    String name = controllerClass.getSimpleName().replace("$", "");
    name = "models." + name.substring(0, name.length() - 1);
    try {
        return (Class<? extends Model>) Play.classloader.loadClass(name);
    } catch (ClassNotFoundException e) {
        return null;
    }
}
 

import play.mvc.Controller; //導入依賴的package包/類
/**
 * Get the Student that is currently logged in.
 * 
 * @return The currently logged in student or null if no one is logged in.
 */
public static Student getStudent() {
  String studentId = Controller.session().get("connected");
  if (studentId == null) {
    return null;
  }

  // Note this is an ugly hack to get around needing to be logged in during testing.
  // In the tests, a session variable is passed with the value test, this should return
  // a valid student so that controllers believe that a student is logged in.
  if (studentId.equals("_tester")) {
    return new Student("_tester", "firstName", "lastName", "[email protected]");
  }

  return Student.find().where().eq("studentId", studentId).findUnique();
}
 

import play.mvc.Controller; //導入依賴的package包/類
public <T extends BaseDTO> Result getResponse(T result) {
	Result status = Controller.status(result.getStatus());

	if (result != null) {
		status = Controller.status(result.getStatus(), Json.toJson(result));
	}
	return status;
}
 

import play.mvc.Controller; //導入依賴的package包/類
public <T extends BaseDTO> Result getResponses(List<T> results, Class<T> type) {
	Integer status = HttpStatus.SC_OK;
	Optional<T> result = results.stream().findAny();

	if (result.isPresent()) {
		status = result.get().getStatus();
	}
	return Controller.status(status, Json.toJson(wrapListForJson(results, type)));
}
 

import play.mvc.Controller; //導入依賴的package包/類
@Override
public Promise<Result> onClientError(RequestHeader requestHeader, int statusCode, String error) {
    injectCommonServicesIncontext(Http.Context.current());
    if (statusCode == play.mvc.Http.Status.NOT_FOUND) {
        return Promise.promise(new Function0<Result>() {
            public Result apply() throws Throwable {
                if (requestHeader.path().startsWith(AbstractApiController.STANDARD_API_ROOT_URI)) {
                    return getApiControllerUtilsService().getJsonErrorResponse(new ApiError(404, "Not found"), Controller.ctx().response());
                } else {
                    return play.mvc.Results.notFound(views.html.error.not_found.render(requestHeader.uri()));
                }
            }
        });
    }
    if (statusCode == play.mvc.Http.Status.BAD_REQUEST) {
        injectCommonServicesIncontext(Http.Context.current());
        return Promise.promise(new Function0<Result>() {
            public Result apply() throws Throwable {
                if (requestHeader.path().startsWith(AbstractApiController.STANDARD_API_ROOT_URI)) {
                    return getApiControllerUtilsService().getJsonErrorResponse(new ApiError(400, error), Controller.ctx().response());
                } else {
                    return play.mvc.Results.badRequest(views.html.error.bad_request.render());
                }
            }

        });
    }
    return Promise.<Result> pure(play.mvc.Results.status(statusCode, "an unexpected error occured: " + error));
}