package org.apidesign.anagram.app.register;

import java.util.logging.Level;

import java.util.logging.Logger;

import org.apidesign.anagram.api.Scrambler;

import org.apidesign.anagram.api.WordLibrary;

import org.apidesign.anagram.gui.Anagrams;

public final class AnagramsWithProperties extends Anagrams {

    private WordLibrary wordLibrary;

    private Scrambler scrambler;

    public AnagramsWithProperties() {

    }

    @Override

    protected WordLibrary getWordLibrary() {

        try {

            if (wordLibrary == null) {

                String implName = System.getProperty("org.apidesign.anagram.api.WordLibrary");

                assert implName != null;

                Class<?> impl = Class.forName(implName);

                wordLibrary = (WordLibrary)impl.newInstance();

            }

            return wordLibrary;

        } catch (Exception ex) {

            throw new IllegalStateException(ex);

        }

    }

    @Override

    protected Scrambler getScrambler() {

        try {

            if (scrambler == null) {

                String implName = System.getProperty("org.apidesign.anagram.api.Scrambler");

                assert implName != null;

                Class<?> impl = Class.forName(implName);

                scrambler = (Scrambler)impl.newInstance();

            }

            return scrambler;

        } catch (Exception ex) {

            throw new IllegalStateException(ex);

        }

    }

}