Addic7edServiceProvider.java

package org.lodder.subtools.multisubdownloader.serviceproviders;

import java.util.prefs.Preferences;

import org.lodder.subtools.multisubdownloader.framework.Container;
import org.lodder.subtools.multisubdownloader.framework.event.Emitter;
import org.lodder.subtools.multisubdownloader.framework.event.Event;
import org.lodder.subtools.multisubdownloader.framework.event.Handler;
import org.lodder.subtools.multisubdownloader.framework.service.providers.ServiceProvider;
import org.lodder.subtools.multisubdownloader.settings.model.Settings;
import org.lodder.subtools.multisubdownloader.subtitleproviders.SubtitleProvider;
import org.lodder.subtools.multisubdownloader.subtitleproviders.SubtitleProviderStore;
import org.lodder.subtools.multisubdownloader.subtitleproviders.adapters.JAddic7edAdapter;
import org.lodder.subtools.sublibrary.Manager;

public class Addic7edServiceProvider implements ServiceProvider {

  protected Container app;
  protected SubtitleProvider subtitleProvider;

  @Override
  public int getPriority() {
    /* We define a priority lower than SubtitleServiceProvider */
    return 1;
  }

  @Override
  public void register(Container app) {

    this.app = app;

    /* Resolve the SubtitleProviderStore from the IoC Container */
    final SubtitleProviderStore subtitleProviderStore =
        (SubtitleProviderStore) app.make("SubtitleProviderStore");

    /* Create the SubtitleProvider */
    subtitleProvider = createProvider();

    /* Add the SubtitleProvider to the store */
    subtitleProviderStore.addProvider(subtitleProvider);

    /* Listen for settings-change event */
    this.registerListener(subtitleProviderStore);
  }

  private SubtitleProvider createProvider() {
    Settings settings = (Settings) this.app.make("Settings");
    Preferences preferences = (Preferences) this.app.make("Preferences");
    Manager manager = (Manager) this.app.make("Manager");

    boolean loginEnabled = false;
    String username = "";
    String password = "";
    if (settings.isLoginAddic7edEnabled()) {
      loginEnabled = true;
      username = settings.getLoginAddic7edUsername();
      password = settings.getLoginAddic7edPassword();
    }

    /* Nullpointer safety */
    username = username == null ? "" : username.trim();
    password = password == null ? "" : password.trim();

    /* Protect against empty login */
    if (loginEnabled && (username.isEmpty() || password.isEmpty())) {
      loginEnabled = false;
    }

    return new JAddic7edAdapter(loginEnabled, username, password, preferences.getBoolean("speedy",
        false), manager);
  }

  private void registerListener(final SubtitleProviderStore subtitleProviderStore) {
    /* Resolve the EventEmitter from the IoC Container */
    Emitter emitter = (Emitter) app.make("EventEmitter");

    /* Listen for settings-change */
    emitter.listen("providers.settings.change", new Handler() {
      @Override
      public void handle(Event event) {
        /* Change occured, delete outdated provider from store */
        subtitleProviderStore.deleteProvider(subtitleProvider);

        /* Re-create subtitleprovider */
        subtitleProvider = createProvider();

        /* Re-add provider to store */
        subtitleProviderStore.addProvider(subtitleProvider);
      }
    });
  }
}