User.java

import android.text.TextUtils;
import android.util.Base64;
import android.util.SparseArray;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;


public class User {

    private String mUsername;
    private String mPassword;
    private String mAuthToken;
    private String mSessionId;

    public User(String username, String password) {
        setPassword(password);
        setUsername(username);
        setAuthToken(username, password);
        setSessionID(null);
    }


    public String getUsername() {
        return mUsername;
    }

    public void setUsername(String username) {
        if (username != null) this.mUsername = username;
        else this.mUsername = "";
    }

    public String getPassword() {
        return mPassword;
    }

    public void setPassword(String password) {
        if (password != null) this.mPassword = password;
        else this.mPassword = "";
    }

    private void setAuthToken(String username, String password) {
        if (username.isEmpty() || password.isEmpty()) this.mAuthToken = null;

        String authString = username + ":" + password;
        byte[] authEncBytes = Base64.encode(authString.getBytes(), Base64.NO_WRAP);
        this.mAuthToken = new String(authEncBytes);
    }

    public String getAuthToken() {
        return mAuthToken;
    }

    public String getSessionID() {
        return mSessionId;
    }

    public void setSessionID(String sessionID) {
        if (sessionID != null) this.mSessionId = sessionID;
        else this.mSessionId = "";
    }
}