DeckFilesComboBox.java

package magic.ui.widget.deck;

import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import magic.utility.DeckUtils;

@SuppressWarnings("serial")
public abstract class DeckFilesComboBox extends JComboBox<String> {

    private final static String ALL_DECKS = "*" + DeckUtils.DECK_EXTENSION;

    public DeckFilesComboBox(final Path decksDirectory) {
        this.setModel(new DefaultComboBoxModel<>(getDeckNamesArray(decksDirectory)));
    }

    private String[] getDeckNamesArray(final Path decksDirectory) {
        final List<String> deckNamesList = new ArrayList<>();
        try (DirectoryStream<Path> ds = Files.newDirectoryStream(decksDirectory, ALL_DECKS)) {
            for (Path p : ds) {
                deckNamesList.add(DeckUtils.getDeckNameFromFile(p));
            }
        } catch (IOException ex) {
            System.err.println(ex);
        }
        return deckNamesList.toArray(new String[0]);
    }

}