Java tutorial
/* This SDK is licensed under the MIT license (MIT) Copyright (c) 2015- Applied Technologies Internet SAS (registration number B 403 261 258 - Trade and Companies Register of Bordeaux France) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package com.atinternet.tracker; import android.content.Context; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.text.TextUtils; import org.json.JSONException; import org.json.JSONObject; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.LinkedHashMap; import java.util.Locale; import java.util.UUID; class LifeCycle { /** * Key representing version code app */ static final String VERSION_CODE_KEY = "VersionCode"; /** * Key representing if it's first session */ static final String FIRST_SESSION = "FirstLaunch"; /** * Key representing if it's first session after update */ static final String FIRST_SESSION_AFTER_UPDATE = "FirstLaunchAfterUpdate"; /** * Key representing first session date */ static final String FIRST_SESSION_DATE = "FirstLaunchDate"; /** * Key representing first session date after update */ static final String FIRST_SESSION_DATE_AFTER_UPDATE = "FirstLaunchDateAfterUpdate"; /** * Key representing last session date */ static final String LAST_SESSION_DATE = "LastLaunchDate"; /** * Key representing the app session count */ static final String SESSION_COUNT = "LaunchCount"; /** * Key representing the app session count since update */ static final String SESSION_COUNT_SINCE_UPDATE = "LaunchCountSinceUpdate"; /** * Key representing count of days since first session */ static final String DAYS_SINCE_FIRST_SESSION = "DaysSinceFirstLaunch"; /** * Key representing count of days since first session after update */ static final String DAYS_SINCE_UPDATE = "DaysSinceFirstLaunchAfterUpdate"; /** * Key representing count of days since last session */ static final String DAYS_SINCE_LAST_SESSION = "DaysSinceLastUse"; /** * String pattern to get fld and uld */ static final String DATE_FORMAT = "yyyyMMdd"; /** * Check whether lifecycle has already been initialized */ static boolean isInitialized = false; /** * Session identifier */ private static String sessionId; /** * Version code */ private static String versionCode; /** * Date format */ private static final SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_FORMAT, Locale.getDefault()); /** * Init lifecycle * * @param context Context */ static void initLifeCycle(Context context) { SharedPreferences preferences = Tracker.getPreferences(); try { versionCode = String.valueOf(context.getPackageManager() .getPackageInfo(context.getApplicationContext().getPackageName(), 0).versionCode); // Not first session if (!preferences.getBoolean(FIRST_SESSION, true) || preferences.getBoolean("ATFirstInitLifecycleDone", false)) { newSessionInit(preferences); } else { SharedPreferences backwardPreferences = context.getSharedPreferences("ATPrefs", Context.MODE_PRIVATE); firstSessionInit(preferences, backwardPreferences); } } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } preferences.edit().putBoolean("ATFirstInitLifecycleDone", true).apply(); isInitialized = true; } static void firstSessionInit(SharedPreferences preferences, SharedPreferences backwardPreferences) { // If SDKV1 lifecycle exists if (backwardPreferences != null && backwardPreferences.getString("ATFirstLaunch", null) != null) { preferences.edit().putBoolean(FIRST_SESSION, false) .putString(FIRST_SESSION_DATE, backwardPreferences.getString("ATFirstLaunch", "")) .putInt(SESSION_COUNT, backwardPreferences.getInt("ATLaunchCount", 0)) .putString(LAST_SESSION_DATE, backwardPreferences.getString("ATLastLaunch", "")).apply(); backwardPreferences.edit().putString("ATFirstLaunch", null).apply(); } else { preferences.edit().putBoolean(FIRST_SESSION, true).putBoolean(FIRST_SESSION_AFTER_UPDATE, false) .putInt(SESSION_COUNT, 1).putInt(SESSION_COUNT_SINCE_UPDATE, 1) .putInt(DAYS_SINCE_FIRST_SESSION, 0).putInt(DAYS_SINCE_LAST_SESSION, 0) .putString(FIRST_SESSION_DATE, simpleDateFormat.format(new Date())) .putString(LAST_SESSION_DATE, simpleDateFormat.format(new Date())).apply(); } preferences.edit().putString(LifeCycle.VERSION_CODE_KEY, versionCode).apply(); sessionId = UUID.randomUUID().toString(); } static void updateFirstSession(SharedPreferences preferences) { preferences.edit().putBoolean(FIRST_SESSION, false).putBoolean(FIRST_SESSION_AFTER_UPDATE, false).apply(); } static void newSessionInit(SharedPreferences preferences) { try { updateFirstSession(preferences); // Calcul dsfs String firstLaunchDate = preferences.getString(FIRST_SESSION_DATE, ""); if (!TextUtils.isEmpty(firstLaunchDate)) { long timeSinceFirstLaunch = simpleDateFormat.parse(firstLaunchDate).getTime(); preferences.edit().putInt(DAYS_SINCE_FIRST_SESSION, Tool.getDaysBetweenTimes(System.currentTimeMillis(), timeSinceFirstLaunch)).apply(); } // Calcul dsu String firstLaunchDateAfterUpdate = preferences.getString(FIRST_SESSION_DATE_AFTER_UPDATE, ""); if (!TextUtils.isEmpty(firstLaunchDateAfterUpdate)) { long timeSinceFirstLaunchAfterUpdate = simpleDateFormat.parse(firstLaunchDateAfterUpdate).getTime(); preferences.edit().putInt(DAYS_SINCE_UPDATE, Tool.getDaysBetweenTimes(System.currentTimeMillis(), timeSinceFirstLaunchAfterUpdate)) .apply(); } // Calcul dsls String lastLaunchDate = preferences.getString(LAST_SESSION_DATE, ""); if (!TextUtils.isEmpty(lastLaunchDate)) { long timeSinceLastUse = simpleDateFormat.parse(lastLaunchDate).getTime(); preferences.edit().putInt(DAYS_SINCE_LAST_SESSION, Tool.getDaysBetweenTimes(System.currentTimeMillis(), timeSinceLastUse)).apply(); } preferences.edit().putString(LAST_SESSION_DATE, simpleDateFormat.format(new Date())).apply(); // sc preferences.edit().putInt(SESSION_COUNT, preferences.getInt(SESSION_COUNT, 0) + 1).apply(); // Calcul scsu preferences.edit() .putInt(SESSION_COUNT_SINCE_UPDATE, preferences.getInt(SESSION_COUNT_SINCE_UPDATE, 0) + 1) .apply(); // Application version changed String savedApvr = preferences.getString(VERSION_CODE_KEY, ""); // Update detected if (!versionCode.equals(savedApvr)) { preferences.edit().putString(FIRST_SESSION_DATE_AFTER_UPDATE, simpleDateFormat.format(new Date())) .putString(VERSION_CODE_KEY, versionCode).putInt(SESSION_COUNT_SINCE_UPDATE, 1) .putInt(DAYS_SINCE_UPDATE, 0).putBoolean(FIRST_SESSION_AFTER_UPDATE, true).apply(); } } catch (ParseException e) { e.printStackTrace(); } sessionId = UUID.randomUUID().toString(); } /** * Get the object which contains lifecycle metrics * * @return Closure */ static Closure getMetrics(final SharedPreferences preferences) { return new Closure() { @Override public String execute() { try { LinkedHashMap<String, Object> map = new LinkedHashMap<String, Object>(); // fs map.put("fs", preferences.getBoolean(FIRST_SESSION, false) ? 1 : 0); // fsau map.put("fsau", preferences.getBoolean(FIRST_SESSION_AFTER_UPDATE, false) ? 1 : 0); if (!TextUtils.isEmpty(preferences.getString(FIRST_SESSION_DATE_AFTER_UPDATE, ""))) { map.put("scsu", preferences.getInt(SESSION_COUNT_SINCE_UPDATE, 0)); map.put("fsdau", Integer.parseInt(preferences.getString(FIRST_SESSION_DATE_AFTER_UPDATE, ""))); map.put("dsu", preferences.getInt(DAYS_SINCE_UPDATE, 0)); } map.put("sc", preferences.getInt(SESSION_COUNT, 0)); map.put("fsd", Integer.parseInt(preferences.getString(FIRST_SESSION_DATE, ""))); map.put("dsls", preferences.getInt(DAYS_SINCE_LAST_SESSION, 0)); map.put("dsfs", preferences.getInt(DAYS_SINCE_FIRST_SESSION, 0)); map.put("sessionId", sessionId); return new JSONObject().put("lifecycle", new JSONObject(map)).toString(); } catch (JSONException e) { e.printStackTrace(); } return ""; } }; } }