Sharing iP code quality feedback [for @zzkzzzz] - Round 2

[nus-se-bot]

@zzkzzzz We did an automated analysis of your code to detect potential areas to improve the code quality. We are sharing the results below, so that you can avoid similar problems in your tP code (which will be graded more strictly for code quality).

IMPORTANT: Note that the script looked for just a few easy-to-detect problems only, and at-most three example are given i.e., there can be other areas/places to improve.

Aspect: Tab Usage

No easy-to-detect issues 👍

Aspect: Naming boolean variables/methods

No easy-to-detect issues 👍

Aspect: Brace Style

No easy-to-detect issues 👍

Aspect: Package Name Style

No easy-to-detect issues 👍

Aspect: Class Name Style

No easy-to-detect issues 👍

Aspect: Dead Code

No easy-to-detect issues 👍

Aspect: Method Length

Example from src/main/java/meep/parser/Parser.java lines 37-107:

    public Command parseUserInput(String userInput, List<Task> tasks) throws InvalidInputException {
        boolean isEmptyInput = userInput.trim().length() == 0;
        if (isEmptyInput) {
            throw new InvalidInputException(Messages.MESSAGE_EMPTY_INPUT);
        }

        String[] arr = userInput.split(" ", 2);
        switch (arr[0]) {
        case ExitCommand.COMMAND_WORD:
            if (isValidCommandLength(ExitCommand.COMMAND_LENGTH, arr)) {
                return new ExitCommand();
            }
            break;
        case HelpCommand.COMMAND_WORD:
            if (isValidCommandLength(HelpCommand.COMMAND_LENGTH, arr)) {
                return new HelpCommand();
            }
            break;
        case ListCommand.COMMAND_WORD:
            if (isValidCommandLength(ListCommand.COMMAND_LIST_LENGTH, arr)) {
                // list without date
                return new ListCommand();
            } else if (isValidCommandLength(ListCommand.COMMAND_LIST_DATE_LENGTH, arr)) {
                // list with date given
                return new ListCommand(true, parseDate(arr[1]));
            }
            break;
        case MarkCommand.COMMAND_WORD:
            if (isValidCommandLength(MarkCommand.COMMAND_LENGTH, arr)) {
                int index = parseListIndex(arr[1], tasks);
                assert index >= 0 && index < tasks.size() : Messages.MESSAGE_OUTBOUND_NUMBER;
                return new MarkCommand(index);
            }
            break;
        case UnmarkCommand.COMMAND_WORD:
            if (isValidCommandLength(UnmarkCommand.COMMAND_LENGTH, arr)) {
                int index = parseListIndex(arr[1], tasks);
                assert index >= 0 && index < tasks.size() : Messages.MESSAGE_OUTBOUND_NUMBER;
                return new UnmarkCommand(index);
            }
            break;
        case DeleteCommand.COMMAND_WORD:
            if (isValidCommandLength(DeleteCommand.COMMAND_LENGTH, arr)) {
                int index = parseListIndex(arr[1], tasks);
                assert index >= 0 && index < tasks.size() : Messages.MESSAGE_OUTBOUND_NUMBER;
                return new DeleteCommand(index);
            }
            break;
        case AddCommand.COMMAND_TODO:
            ToDo todo = parseTodoCommand(arr);
            return new AddCommand(todo);
            // Fallthrough
        case AddCommand.COMMAND_DEADLINE:
            Deadline deadline = parseDeadlineCommand(arr);
            return new AddCommand(deadline);
            // Fallthrough
        case AddCommand.COMMAND_EVENT:
            Event event = parseEventCommand(arr);
            return new AddCommand(event);
            // Fallthrough
        case FindCommand.COMMAND_WORD:
            if (isValidCommandLength(FindCommand.COMMAND_LENGTH, arr)) {
                return new FindCommand(arr[1]);
            }
            break;

        default:
            throw new InvalidInputException(Messages.MESSAGE_INVALID_FORMAT);
        }
        throw new InvalidInputException(Messages.MESSAGE_INVALID_FORMAT);
    }

Example from src/main/java/meep/ui/Gui.java lines 54-129:

    public void start(Stage stage) {


        //Step 1. Setting up required components
        //The container for the content of the chat to scroll.
        scrollPane = new ScrollPane();
        dialogContainer = new VBox();
        scrollPane.setContent(dialogContainer);

        userInput = new TextField();
        sendButton = new Button();


        AnchorPane mainLayout = new AnchorPane();
        mainLayout.getChildren().addAll(scrollPane, userInput, sendButton);

        scene = new Scene(mainLayout);

        stage.setScene(scene);
        stage.show();

        //Step 2. Formatting the window to look as expected
        stage.setTitle("Meep");
        stage.setResizable(false);
        stage.setMinHeight(6000.0);
        stage.setMinWidth(400.0);

        mainLayout.setPrefSize(400.0, 600.0);

        scrollPane.setPrefSize(385, 535);
        scrollPane.setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
        scrollPane.setVbarPolicy(ScrollPane.ScrollBarPolicy.ALWAYS);

        scrollPane.setVvalue(1.0);
        scrollPane.setFitToWidth(true);

        // You will need to import `javafx.scene.layout.Region` for this.
        dialogContainer.setPrefHeight(Region.USE_COMPUTED_SIZE);

        userInput.setPrefWidth(325.0);

        sendButton.setPrefWidth(55.0);

        AnchorPane.setTopAnchor(scrollPane, 1.0);

        AnchorPane.setBottomAnchor(sendButton, 1.0);
        AnchorPane.setRightAnchor(sendButton, 1.0);

        AnchorPane.setLeftAnchor(userInput, 1.0);
        AnchorPane.setBottomAnchor(userInput, 1.0);

        //Step 3. Add functionality to handle user input.
        sendButton.setOnMouseClicked((event) -> {
            dialogContainer.getChildren().add(getDialogLabel(userInput.getText()));
            userInput.clear();
        });

        userInput.setOnAction((event) -> {
            dialogContainer.getChildren().add(getDialogLabel(userInput.getText()));
            userInput.clear();
        });

        //Scroll down to the end every time dialogContainer's height changes.
        dialogContainer.heightProperty().addListener((observable) -> scrollPane.setVvalue(1.0));

        //Part 3. Add functionality to handle user input.
        sendButton.setOnMouseClicked((event) -> {
            handleUserInput();
        });

        userInput.setOnAction((event) -> {
            handleUserInput();
        });


    }

Suggestion: Consider applying SLAP (and other abstraction mechanisms) to shorten methods. You may ignore this suggestion if you think a longer method is justified in a particular case.

Aspect: Class size

No easy-to-detect issues 👍

Aspect: Header Comments

Example from src/main/java/meep/task/Task.java lines 67-69:

    /**
     * To String.
     */

Example from src/main/java/meep/textui/Ui.java lines 51-53:

    /**
     * Print logo.
     */

Example from src/main/java/meep/textui/Ui.java lines 62-64:

    /**
     * Print bye.
     */

Suggestion: Ensure method/class header comments follow the format specified in the coding standard, in particular, the phrasing of the overview statement.

Aspect: Recent Git Commit Message (Subject Only)

No easy-to-detect issues 👍

Aspect: Binary files in repo

No easy-to-detect issues 👍

❗ You are not required to (but you are welcome to) fix the above problems in your iP, unless you have been separately asked to resubmit the iP due to code quality issues.

ℹ️ The bot account used to post this issue is un-manned. Do not reply to this post (as those replies will not be read). Instead, contact cs2103@comp.nus.edu.sg if you want to follow up on this post.