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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *	    http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.providers.contacts;
     18 
     19 import android.app.ActivityManagerNative;
     20 import android.content.BroadcastReceiver;
     21 import android.content.ComponentName;
     22 import android.content.Context;
     23 import android.content.Intent;
     24 import android.content.SharedPreferences;
     25 import android.content.pm.PackageManager;
     26 import android.os.RemoteException;
     27 import android.util.Log;
     28 
     29 import libcore.icu.ICU;
     30 
     31 /**
     32  * This will be launched during system boot, after the core system has
     33  * been brought up but before any non-persistent processes have been
     34  * started.  It is launched in a special state, with no content provider
     35  * or custom application class associated with the process running.
     36  *
     37  * It's job is to prime the contacts database. Either create it
     38  * if it doesn't exist, or open it and force any necessary upgrades.
     39  * All of this heavy lifting happens before the boot animation ends.
     40  */
     41 public class ContactsUpgradeReceiver extends BroadcastReceiver {
     42     static final String TAG = "ContactsUpgradeReceiver";
     43     static final String PREF_DB_VERSION = "db_version";
     44     static final String PREF_ICU_VERSION = "icu_version";
     45 
     46     @Override
     47     public void onReceive(Context context, Intent intent) {
     48         // We are now running with the system up, but no apps started,
     49         // so can do whatever cleanup after an upgrade that we want.
     50 
     51         try {
     52             long startTime = System.currentTimeMillis();
     53 
     54             // Lookup the last known database version
     55             SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
     56             int prefDbVersion = prefs.getInt(PREF_DB_VERSION, 0);
     57             final String curIcuVersion = ICU.getIcuVersion();
     58             final String prefIcuVersion = prefs.getString(PREF_ICU_VERSION, "");
     59 
     60             // If the version is old go ahead and attempt to create or upgrade the database.
     61             if (prefDbVersion != ContactsDatabaseHelper.DATABASE_VERSION ||
     62                     !prefIcuVersion.equals(curIcuVersion)) {
     63                 // Store the current version so this receiver isn't run again until the database
     64                 // version number changes. This is intentionally done even before the upgrade path
     65                 // is attempted to be conservative. If the upgrade fails for some reason and we
     66                 // crash and burn we don't want to get into a loop doing so.
     67                 SharedPreferences.Editor editor = prefs.edit();
     68                 editor.putInt(PREF_DB_VERSION, ContactsDatabaseHelper.DATABASE_VERSION);
     69                 editor.putString(PREF_ICU_VERSION, curIcuVersion);
     70                 editor.commit();
     71 
     72                 // Ask for a reference to the database to force the helper to either
     73                 // create the database or open it up, performing any necessary upgrades
     74                 // in the process.
     75                 ContactsDatabaseHelper helper = ContactsDatabaseHelper.getInstance(context);
     76                 ProfileDatabaseHelper profileHelper = ProfileDatabaseHelper.getInstance(context);
     77                 Log.i(TAG, "Creating or opening contacts database");
     78                 try {
     79                     ActivityManagerNative.getDefault().showBootMessage(
     80                             context.getText(R.string.upgrade_msg), true);
     81                 } catch (RemoteException e) {
     82                 }
     83 
     84                 helper.getWritableDatabase();
     85                 profileHelper.getWritableDatabase();
     86                 ContactsProvider2.updateLocaleOffline(context, helper, profileHelper);
     87 
     88                 // Log the total time taken for the receiver to perform the operation
     89                 EventLogTags.writeContactsUpgradeReceiver(System.currentTimeMillis() - startTime);
     90             }
     91         } catch (Throwable t) {
     92             // Something has gone terribly wrong. Disable this receiver for good so we can't
     93             // possibly end up in a reboot loop.
     94             Log.wtf(TAG, "Error during upgrade attempt. Disabling receiver.", t);
     95             context.getPackageManager().setComponentEnabledSetting(
     96                     new ComponentName(context, getClass()),
     97                     PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
     98                     PackageManager.DONT_KILL_APP);
     99         }
    100     }
    101 }
    102