Discutez de la qualité de la méthode musicApp.models.Song#getCoverImage et de musicApp.views.MediaPlayerView#loadDefaultCoverImage ?
public Image getCoverImage() {
String defaultCover = getClass().getResource("/images/song.png").toExternalForm();
if (getCover() == null) {
return new Image(Objects.requireNonNull(defaultCover));
}
try {
return new Image(new ByteArrayInputStream(getCover()));
} catch (Exception e) {
return new Image(Objects.requireNonNull(defaultCover));
}
}private Image loadDefaultCoverImage() {
try {
return new Image(Objects.requireNonNull(
getClass().getResourceAsStream("/images/song.png"),
"Default cover image not found"
));
} catch (Exception e) {
System.err.println("Failed to load default cover image");
return null;
}
}Vous utilisez à plusieurs endroits des Optionals. Quel est leur rôle dans votre code ? (cf par exemple KaraokeController#handleImportKaraokeLyrics)
public void handleImportKaraokeLyrics() {
Song currentSong = playerController.getCurrentlyLoadedSong();
if (currentSong == null) return;
Optional<Path> selectedFile = view.getLrcFile();
if (selectedFile.isEmpty()) return;
Optional<Boolean> evaluation = evaluateOverwriteTxt(currentSong);
if (evaluation.isEmpty()) return;
boolean overwriteTxt = evaluation.get();
try {
lyricsManager.importLrc(currentSong, selectedFile.get(), overwriteTxt);
} catch (Exception e) {
AlertService as = new AlertService();
as.showExceptionAlert(e);
}
view.updateKaraokeLyrics();
handleShowKaraoke();
}Comment fonctionne algorithmiquement la méthode models.Library#getAutoCompletion ? Vous utilisez un Math.random(), pourquoi ?
private Optional<String> getAutoCompletion(String input, Function<Song, List<String>> extractor) {
if (input == null || input.isEmpty() || songList.isEmpty()) {
return Optional.empty();
}
String lowerInput = input.toLowerCase();
int size = songList.size();
int randomIndex = (int) (Math.random() * size);
// Search for an autocompletion starting at a random index
for (int offset = 0; offset < size; offset++) {
int i = (randomIndex + offset) % size;
List<String> fields = extractor.apply(songList.get(i));
for (String field : fields) {
if (field == null) continue;
String lowerField = field.toLowerCase();
if (lowerField.startsWith(lowerInput) && lowerField.length() > lowerInput.length()) {
return Optional.of(field);
}
}
}
return Optional.empty();
}Vous avez un unique DTO : SettingsDTO. Pourquoi utiliser un DTO spécifiquement pour cette classe ?
package musicApp.models.dtos;
import java.nio.file.Path;
import java.util.Collections;
import java.util.List;
public class SettingsDTO {
private final Path musicFolder;
private final List<Double> equalizerBands;
private final double balance;
private final double crossfadeDuration;
private final boolean isMusicFolderChanged;
private Path userMusicFolder;
private Path userPlaylistPath;
public SettingsDTO(double _balance, List<Double> _equalizerBands, Path _musicFolder, Path _userMusicFolder, Path _userPlaylistPath, double _crossfadeDuration, boolean _isMusicFolderChanged) {
balance = _balance;
equalizerBands = Collections.unmodifiableList(_equalizerBands);
musicFolder = _musicFolder;
userMusicFolder = _userMusicFolder;
userPlaylistPath = _userPlaylistPath;
crossfadeDuration = _crossfadeDuration;
isMusicFolderChanged = _isMusicFolderChanged;
}
public SettingsDTO(Path _musicFolder, boolean _isMusicFolderChanged) {
balance = 0;
equalizerBands = List.of(0.0, 0.0, 0.0, 0.0, 0.0);
musicFolder = _musicFolder;
crossfadeDuration = 0;
isMusicFolderChanged = _isMusicFolderChanged;
}
public double getBalance() {
return balance;
}
public double getCrossfadeDuration() {
return crossfadeDuration;
}
public List<Double> getEqualizerBands() {
return equalizerBands;
}
public Path getMusicFolder() {
return musicFolder;
}
public Path getUserMusicFolder() {
return userMusicFolder;
}
public boolean isMusicFolderChanged() {
return isMusicFolderChanged;
}
public Path getUserPlaylistPath() {
return userPlaylistPath;
}
}Dans musicApp.models.AudioPlayer, vous utilisez des beans properties et pas dans les autres modèles non. Justifiez ce choix.
package musicApp.models;
import javafx.beans.property.*;
import musicApp.exceptions.BadSongException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Supplier;
/**
* AudioPlayer
* Class that manages the audio playing.
*/
public class AudioPlayer {
private final DoubleProperty progress;
private final StringProperty currentSongString;
private final BooleanProperty isPlaying;
private final BooleanProperty isLoaded;
private final DoubleProperty volume;
private final Double audioSpectrumInterval;
private List<Double> equalizerBandsGain;
private Song loadedSong;
private double balance;
private double crossfadeDuration;
private double speed;
private Supplier<Song> nextSongSupplier;
private Boolean isTransitioning;
public AudioPlayer() {
// Initialize properties in the constructor
progress = new SimpleDoubleProperty(0.0);
currentSongString = new SimpleStringProperty("None");
isPlaying = new SimpleBooleanProperty(false);
isLoaded = new SimpleBooleanProperty(false);
volume = new SimpleDoubleProperty(1.0);
equalizerBandsGain = new ArrayList<>(Collections.nCopies(10, 0.0));
loadedSong = null;
isTransitioning = false;
balance = 0.0;
speed = 1.0;
audioSpectrumInterval = 0.05; // Optimal Speed (lower is blinky, higher is laggy)
}
/**
* Load a song into the player.
*
* @param song The song to load.
*/
public void loadSong(Song song) throws BadSongException {
loadedSong = song;
currentSongString.set(song.getSource());
}
/**
* Returns the list of equalizer band gains.
*
* @return list of gains for each equalizer band
*/
public List<Double> getEqualizerBandsGain() {
return equalizerBandsGain;
}
/**
* Replaces the entire list of equalizer band gains.
*
* @param newEqualizerBandsGain list of new gain values
*/
public void setEqualizerBandsGain(List<Double> newEqualizerBandsGain) {
equalizerBandsGain = newEqualizerBandsGain;
}
/**
* Get the progress of the song.
*
* @return The progress of the song.
*/
public DoubleProperty getProgressProperty() {
return progress;
}
/**
* Check if the song is playing.
*
* @return True if the song is playing, False otherwise.
*/
public BooleanProperty getIsPlayingProperty() {
return isPlaying;
}
/**
* Get the current song property.
*
* @return The current song property.
*/
public StringProperty getCurrentSongStringProperty() {
return currentSongString;
}
/**
* Get the loaded song.
*
* @return The loaded song.
*/
public Song getLoadedSong() {
return loadedSong;
}
/**
* Get the volume property.
*
* @return The volume property.
*/
public DoubleProperty getVolumeProperty() {
return volume;
}
/**
* Gets the current balance setting.
*
* @return balance value
*/
public double getBalance() {
return balance;
}
/**
* Set the balance of the AudioPlayer.
*
* @param newBalance The balance of the AudioPlayer.
*/
public void setBalance(double newBalance) {
balance = newBalance;
}
/**
* Retrieves the current playback speed multiplier.
*
* @return speed multiplier
*/
public double getSpeed() {
return speed;
}
/**
* Change speed of the loaded song.
*/
public void setSpeed(double newSpeed) {
speed = newSpeed;
}
/**
* Gets the interval for audio spectrum analysis.
*
* @return spectrum interval in seconds
*/
public double getAudioSpectrumInterval() {
return audioSpectrumInterval;
}
/**
* Marks the player state as loaded.
*/
public void setLoaded() {
isLoaded.set(true);
}
/**
* Returns the number of equalizer bands configured.
*
* @return count of bands
*/
public int getEqualizerBandsGainSize() {
return equalizerBandsGain.size();
}
/**
* Retrieves the gain value for a specific equalizer band.
*
* @param bandIndex index of the band (0-based)
* @return gain value of that band
*/
public double getEqualizerBandGain(int bandIndex) {
return equalizerBandsGain.get(bandIndex);
}
/**
* Checks if a transition is currently in progress.
*
* @return true if transitioning, false otherwise
*/
public boolean isTransitioning() {
return isTransitioning;
}
/**
* Sets the transitioning flag to manage crossfade state.
*
* @param transitioning new transitioning state
*/
public void setTransitioning(boolean transitioning) {
isTransitioning = transitioning;
}
/**
* Gets the configured crossfade duration.
*
* @return crossfade duration in seconds
*/
public double getCrossfadeDuration() {
return crossfadeDuration;
}
/**
* Set the duration of the crossfade.
*
* @param _crossfadeDuration The duration of the crossfade in seconds.
*/
public void setCrossfadeDuration(double _crossfadeDuration) {
crossfadeDuration = _crossfadeDuration;
}
/**
* Retrieves the next song from the supplier.
*
* @return next Song instance
*/
public Song getNextSongSupplier() {
return nextSongSupplier.get();
}
/**
* Set the next song supplier.
*
* @param _nextSongSupplier The next song supplier, which is a function that returns a Song.
*/
public void setNextSongSupplier(Supplier<Song> _nextSongSupplier) {
nextSongSupplier = _nextSongSupplier;
}
/**
* Updates the playback progress value.
*
* @param newProgress progress ratio (0.0 to 1.0)
*/
public void setProgress(double newProgress) {
progress.set(newProgress);
}
/**
* Sets the playing flag to update playback status.
*
* @param playing new playing state
*/
public void setPlaying(boolean playing) {
isPlaying.set(playing);
}
}Que pensez-vous de l'instanciation et l'utilisation de vos services comme dans musicApp.models.Song#Song ?
public Song(Path _filePath) {
filePath = _filePath;
lyricsEntry = Optional.empty();
MetadataService metadataReader = new MetadataService();
try {
metadata = metadataReader.getMetadata(filePath.toFile());
refreshLyrics();
} catch (ID3TagException | BadFileTypeException | RuntimeException e) {
metadata = new Metadata(); // Default metadata on error
} catch (SettingsFilesException e) {
lyricsEntry = Optional.empty();
}
}Le nombre de méthodes dans musicApp.views.MediaPlayerView.MediaPlayerViewListener paraît énorme. Qu'en pensez-vous ? Qu'indique cette métrique ?
public interface MediaPlayerViewListener extends ViewService.ViewServiceListener {
void handlePauseSong();
void handleNextSong();
void handlePreviousSong();
void handleLaunchDjMode();
void seek(double duration);
void changeSpeed(double speed);
void toggleLyrics(boolean show);
void toggleShuffle(boolean isShuffle);
void toggleMiniPlayer(boolean show);
void handlePlayingStatusChange(Consumer<Boolean> callback);
void bindProgressProperty(DoubleProperty property);
void handleProgressChange(Runnable callback);
void bindVolumeProperty(DoubleBinding divide);
void handleCurrentSongTitleChange(Consumer<String> callback);
void handleCurrentSongArtistChange(Consumer<String> callback);
void handleCurrentImageCoverChange(Consumer<Image> callback);
void handleLoadedSongStatusChange(Consumer<Boolean> callback);
Duration getCurrentTime();
Duration getTotalDuration();
}Tous les modèles ne sont pas testés. Pourquoi ?
Comment avez-vous géré vos intégrations via git ? Quelle méthodologie d'organisation du git avez-vous mis en place ?
Si nous vous laissions une itération de plus pour augmenter la qualité de votre code, que feriez-vous ? Quelles sont les pistes d'amélioration que vous avez identifiées ?