Android Open Source - openhds-tablet Supervisor Login Task

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License

The source code is released under:

OPENHDS PLATFORM OPENSOURCE LICENSE AGREEMENT Copyright (c) 2013 University of Southern Maine. All rights reserved. Redistribution and use in source and binary forms, with or without mo...

Java Source Code

package org.openhds.mobile.task;
/* w  w  w .  ja va 2 s.  com*/
import org.openhds.mobile.database.DatabaseAdapter;
import org.openhds.mobile.model.Supervisor;
import android.os.AsyncTask;

/**
 * The Login task will verify a local user exists in the database If no user
 * exist, the user must initially make a request to download forms with the
 * typed in username/password. If successfully
 */
public class SupervisorLoginTask extends AsyncTask<Boolean, Void, SupervisorLoginTask.Result> {
  private DatabaseAdapter storage;
  private String username;
  private String password;
  private Listener listener;

  public enum Result {
    NEW_USER, AUTHENTICATED, BAD_AUTHENTICATION, CREATED_USER_SUCCESS
  }

  public interface Listener {
    void onNewUser();

    void onAuthenticated();

    void onBadAuthentication();

    void onCreatedUser();
  }

  public SupervisorLoginTask(DatabaseAdapter storage, String user, String password,
      Listener listener) {
    this.storage = storage;
    this.username = user;
    this.password = password;
    this.listener = listener;
  }

  @Override
  protected Result doInBackground(Boolean... params) {
    Supervisor user = storage.findSupervisorByUsername(username);
    if (user != null && user.getPassword().equals(password)) {
      return Result.AUTHENTICATED;
    } else if (user != null) {
      return Result.BAD_AUTHENTICATION;
    }

    return Result.NEW_USER;
  }

  @Override
  protected void onPostExecute(Result result) {
    switch (result) {
    case BAD_AUTHENTICATION:
      listener.onBadAuthentication();
      break;
    case AUTHENTICATED:
      listener.onAuthenticated();
      break;
    case NEW_USER:
      listener.onNewUser();
      break;
    case CREATED_USER_SUCCESS:
      listener.onCreatedUser();
    }
  }

}

Java Source Code List

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