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
17package com.android.providers.contacts;
18
19import android.content.BroadcastReceiver;
20import android.content.ComponentName;
21import android.content.Context;
22import android.content.Intent;
23import android.content.SharedPreferences;
24import android.content.pm.PackageManager;
25import android.os.Build;
26import android.os.RemoteException;
27import android.util.Log;
28
29import 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 */
41public 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    static final String PREF_OS_VERSION = "os_version";
46
47    @Override
48    public void onReceive(Context context, Intent intent) {
49        // We are now running with the system up, but no apps started,
50        // so can do whatever cleanup after an upgrade that we want.
51
52        try {
53            long startTime = System.currentTimeMillis();
54
55            // Lookup the last known database version
56            final SharedPreferences prefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
57            final int prefDbVersion = prefs.getInt(PREF_DB_VERSION, 0);
58
59            final String curIcuVersion = ICU.getIcuVersion();
60            final String curOsVersion = getOsVersionString();
61
62            final String prefIcuVersion = prefs.getString(PREF_ICU_VERSION, "");
63            final String prefOsVersion = prefs.getString(PREF_OS_VERSION, "");
64
65            // If the version is old go ahead and attempt to create or upgrade the database.
66            if (prefDbVersion != ContactsDatabaseHelper.DATABASE_VERSION ||
67                    !prefIcuVersion.equals(curIcuVersion) ||
68                    !prefOsVersion.equals(curOsVersion)) {
69                // Store the current version so this receiver isn't run again until the database
70                // version number changes. This is intentionally done even before the upgrade path
71                // is attempted to be conservative. If the upgrade fails for some reason and we
72                // crash and burn we don't want to get into a loop doing so.
73                SharedPreferences.Editor editor = prefs.edit();
74                editor.putInt(PREF_DB_VERSION, ContactsDatabaseHelper.DATABASE_VERSION);
75                editor.putString(PREF_ICU_VERSION, curIcuVersion);
76                editor.putString(PREF_OS_VERSION, curOsVersion);
77                editor.commit();
78
79                // Ask for a reference to the database to force the helper to either
80                // create the database or open it up, performing any necessary upgrades
81                // in the process.
82                ContactsDatabaseHelper helper = ContactsDatabaseHelper.getInstance(context);
83                ProfileDatabaseHelper profileHelper = ProfileDatabaseHelper.getInstance(context);
84                CallLogDatabaseHelper calllogHelper = CallLogDatabaseHelper.getInstance(context);
85
86                Log.i(TAG, "Creating or opening contacts database");
87
88                helper.getWritableDatabase();
89                helper.forceDirectoryRescan();
90
91                profileHelper.getWritableDatabase();
92                calllogHelper.getWritableDatabase();
93
94                ContactsProvider2.updateLocaleOffline(context, helper, profileHelper);
95
96                // Log the total time taken for the receiver to perform the operation
97                EventLogTags.writeContactsUpgradeReceiver(System.currentTimeMillis() - startTime);
98            }
99        } catch (Throwable t) {
100            // Something has gone terribly wrong. Disable this receiver for good so we can't
101            // possibly end up in a reboot loop.
102            Log.wtf(TAG, "Error during upgrade attempt. Disabling receiver.", t);
103            context.getPackageManager().setComponentEnabledSetting(
104                    new ComponentName(context, getClass()),
105                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
106                    PackageManager.DONT_KILL_APP);
107        }
108    }
109
110    private static String getOsVersionString() {
111        return Build.ID;
112    }
113}
114