UserManager.java

/**
 * 2011 Foxykeep (http://datadroid.foxykeep.com)
 * <p>
 * Licensed under the Beerware License : <br />
 * As long as you retain this notice you can do whatever you want with this stuff. If we meet some
 * day, and you think this stuff is worth it, you can buy me a beer in return
 */

package com.foxykeep.datadroidpoc.util;

import com.foxykeep.datadroidpoc.config.SharedPrefsConfig;

import android.content.Context;
import android.content.SharedPreferences;

import java.util.UUID;

public final class UserManager {

    private UserManager() {
        // No public constructor
    }

    public static String getUserId(Context context) {
        SharedPreferences sharedPrefs = context.getSharedPreferences(
                SharedPrefsConfig.SHARED_PREFS_FILENAME,
                Context.MODE_PRIVATE);
        String userId = sharedPrefs.getString(SharedPrefsConfig.SHARED_PREFS_USER_ID, null);

        if (userId == null) {
            userId = UUID.randomUUID().toString();
            sharedPrefs.edit().putString(SharedPrefsConfig.SHARED_PREFS_USER_ID, userId).commit();
        }

        return userId;
    }
}