The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame^] | 1 | package android.content; |
| 2 | |
| 3 | import android.Manifest; |
| 4 | import android.database.Cursor; |
| 5 | import android.database.DatabaseUtils; |
| 6 | import android.database.sqlite.SQLiteDatabase; |
| 7 | import android.database.sqlite.SQLiteOpenHelper; |
| 8 | import android.database.sqlite.SQLiteQueryBuilder; |
| 9 | import android.net.Uri; |
| 10 | import android.provider.Sync; |
| 11 | import android.text.TextUtils; |
| 12 | import android.util.Config; |
| 13 | import android.util.Log; |
| 14 | |
| 15 | import java.util.ArrayList; |
| 16 | import java.util.HashMap; |
| 17 | import java.util.HashSet; |
| 18 | |
| 19 | /** |
| 20 | * ContentProvider that tracks the sync data and overall sync |
| 21 | * history on the device. |
| 22 | * |
| 23 | * @hide |
| 24 | */ |
| 25 | public class SyncStorageEngine { |
| 26 | private static final String TAG = "SyncManager"; |
| 27 | |
| 28 | private static final String DATABASE_NAME = "syncmanager.db"; |
| 29 | private static final int DATABASE_VERSION = 10; |
| 30 | |
| 31 | private static final int STATS = 1; |
| 32 | private static final int STATS_ID = 2; |
| 33 | private static final int HISTORY = 3; |
| 34 | private static final int HISTORY_ID = 4; |
| 35 | private static final int SETTINGS = 5; |
| 36 | private static final int PENDING = 7; |
| 37 | private static final int ACTIVE = 8; |
| 38 | private static final int STATUS = 9; |
| 39 | |
| 40 | private static final UriMatcher sURLMatcher = |
| 41 | new UriMatcher(UriMatcher.NO_MATCH); |
| 42 | |
| 43 | private static final HashMap<String,String> HISTORY_PROJECTION_MAP; |
| 44 | private static final HashMap<String,String> PENDING_PROJECTION_MAP; |
| 45 | private static final HashMap<String,String> ACTIVE_PROJECTION_MAP; |
| 46 | private static final HashMap<String,String> STATUS_PROJECTION_MAP; |
| 47 | |
| 48 | private final Context mContext; |
| 49 | private final SQLiteOpenHelper mOpenHelper; |
| 50 | private static SyncStorageEngine sSyncStorageEngine = null; |
| 51 | |
| 52 | static { |
| 53 | sURLMatcher.addURI("sync", "stats", STATS); |
| 54 | sURLMatcher.addURI("sync", "stats/#", STATS_ID); |
| 55 | sURLMatcher.addURI("sync", "history", HISTORY); |
| 56 | sURLMatcher.addURI("sync", "history/#", HISTORY_ID); |
| 57 | sURLMatcher.addURI("sync", "settings", SETTINGS); |
| 58 | sURLMatcher.addURI("sync", "status", STATUS); |
| 59 | sURLMatcher.addURI("sync", "active", ACTIVE); |
| 60 | sURLMatcher.addURI("sync", "pending", PENDING); |
| 61 | |
| 62 | HashMap<String,String> map; |
| 63 | PENDING_PROJECTION_MAP = map = new HashMap<String,String>(); |
| 64 | map.put(Sync.History._ID, Sync.History._ID); |
| 65 | map.put(Sync.History.ACCOUNT, Sync.History.ACCOUNT); |
| 66 | map.put(Sync.History.AUTHORITY, Sync.History.AUTHORITY); |
| 67 | |
| 68 | ACTIVE_PROJECTION_MAP = map = new HashMap<String,String>(); |
| 69 | map.put(Sync.History._ID, Sync.History._ID); |
| 70 | map.put(Sync.History.ACCOUNT, Sync.History.ACCOUNT); |
| 71 | map.put(Sync.History.AUTHORITY, Sync.History.AUTHORITY); |
| 72 | map.put("startTime", "startTime"); |
| 73 | |
| 74 | HISTORY_PROJECTION_MAP = map = new HashMap<String,String>(); |
| 75 | map.put(Sync.History._ID, "history._id as _id"); |
| 76 | map.put(Sync.History.ACCOUNT, "stats.account as account"); |
| 77 | map.put(Sync.History.AUTHORITY, "stats.authority as authority"); |
| 78 | map.put(Sync.History.EVENT, Sync.History.EVENT); |
| 79 | map.put(Sync.History.EVENT_TIME, Sync.History.EVENT_TIME); |
| 80 | map.put(Sync.History.ELAPSED_TIME, Sync.History.ELAPSED_TIME); |
| 81 | map.put(Sync.History.SOURCE, Sync.History.SOURCE); |
| 82 | map.put(Sync.History.UPSTREAM_ACTIVITY, Sync.History.UPSTREAM_ACTIVITY); |
| 83 | map.put(Sync.History.DOWNSTREAM_ACTIVITY, Sync.History.DOWNSTREAM_ACTIVITY); |
| 84 | map.put(Sync.History.MESG, Sync.History.MESG); |
| 85 | |
| 86 | STATUS_PROJECTION_MAP = map = new HashMap<String,String>(); |
| 87 | map.put(Sync.Status._ID, "status._id as _id"); |
| 88 | map.put(Sync.Status.ACCOUNT, "stats.account as account"); |
| 89 | map.put(Sync.Status.AUTHORITY, "stats.authority as authority"); |
| 90 | map.put(Sync.Status.TOTAL_ELAPSED_TIME, Sync.Status.TOTAL_ELAPSED_TIME); |
| 91 | map.put(Sync.Status.NUM_SYNCS, Sync.Status.NUM_SYNCS); |
| 92 | map.put(Sync.Status.NUM_SOURCE_LOCAL, Sync.Status.NUM_SOURCE_LOCAL); |
| 93 | map.put(Sync.Status.NUM_SOURCE_POLL, Sync.Status.NUM_SOURCE_POLL); |
| 94 | map.put(Sync.Status.NUM_SOURCE_SERVER, Sync.Status.NUM_SOURCE_SERVER); |
| 95 | map.put(Sync.Status.NUM_SOURCE_USER, Sync.Status.NUM_SOURCE_USER); |
| 96 | map.put(Sync.Status.LAST_SUCCESS_SOURCE, Sync.Status.LAST_SUCCESS_SOURCE); |
| 97 | map.put(Sync.Status.LAST_SUCCESS_TIME, Sync.Status.LAST_SUCCESS_TIME); |
| 98 | map.put(Sync.Status.LAST_FAILURE_SOURCE, Sync.Status.LAST_FAILURE_SOURCE); |
| 99 | map.put(Sync.Status.LAST_FAILURE_TIME, Sync.Status.LAST_FAILURE_TIME); |
| 100 | map.put(Sync.Status.LAST_FAILURE_MESG, Sync.Status.LAST_FAILURE_MESG); |
| 101 | map.put(Sync.Status.PENDING, Sync.Status.PENDING); |
| 102 | } |
| 103 | |
| 104 | private static final String[] STATS_ACCOUNT_PROJECTION = |
| 105 | new String[] { Sync.Stats.ACCOUNT }; |
| 106 | |
| 107 | private static final int MAX_HISTORY_EVENTS_TO_KEEP = 5000; |
| 108 | |
| 109 | private static final String SELECT_INITIAL_FAILURE_TIME_QUERY_STRING = "" |
| 110 | + "SELECT min(a) " |
| 111 | + "FROM (" |
| 112 | + " SELECT initialFailureTime AS a " |
| 113 | + " FROM status " |
| 114 | + " WHERE stats_id=? AND a IS NOT NULL " |
| 115 | + " UNION " |
| 116 | + " SELECT ? AS a" |
| 117 | + " )"; |
| 118 | |
| 119 | private SyncStorageEngine(Context context) { |
| 120 | mContext = context; |
| 121 | mOpenHelper = new SyncStorageEngine.DatabaseHelper(context); |
| 122 | sSyncStorageEngine = this; |
| 123 | } |
| 124 | |
| 125 | public static SyncStorageEngine newTestInstance(Context context) { |
| 126 | return new SyncStorageEngine(context); |
| 127 | } |
| 128 | |
| 129 | public static void init(Context context) { |
| 130 | if (sSyncStorageEngine != null) { |
| 131 | throw new IllegalStateException("already initialized"); |
| 132 | } |
| 133 | sSyncStorageEngine = new SyncStorageEngine(context); |
| 134 | } |
| 135 | |
| 136 | public static SyncStorageEngine getSingleton() { |
| 137 | if (sSyncStorageEngine == null) { |
| 138 | throw new IllegalStateException("not initialized"); |
| 139 | } |
| 140 | return sSyncStorageEngine; |
| 141 | } |
| 142 | |
| 143 | private class DatabaseHelper extends SQLiteOpenHelper { |
| 144 | DatabaseHelper(Context context) { |
| 145 | super(context, DATABASE_NAME, null, DATABASE_VERSION); |
| 146 | } |
| 147 | |
| 148 | @Override |
| 149 | public void onCreate(SQLiteDatabase db) { |
| 150 | db.execSQL("CREATE TABLE pending (" |
| 151 | + "_id INTEGER PRIMARY KEY," |
| 152 | + "authority TEXT NOT NULL," |
| 153 | + "account TEXT NOT NULL," |
| 154 | + "extras BLOB NOT NULL," |
| 155 | + "source INTEGER NOT NULL" |
| 156 | + ");"); |
| 157 | |
| 158 | db.execSQL("CREATE TABLE stats (" + |
| 159 | "_id INTEGER PRIMARY KEY," + |
| 160 | "account TEXT, " + |
| 161 | "authority TEXT, " + |
| 162 | "syncdata TEXT, " + |
| 163 | "UNIQUE (account, authority)" + |
| 164 | ");"); |
| 165 | |
| 166 | db.execSQL("CREATE TABLE history (" + |
| 167 | "_id INTEGER PRIMARY KEY," + |
| 168 | "stats_id INTEGER," + |
| 169 | "eventTime INTEGER," + |
| 170 | "elapsedTime INTEGER," + |
| 171 | "source INTEGER," + |
| 172 | "event INTEGER," + |
| 173 | "upstreamActivity INTEGER," + |
| 174 | "downstreamActivity INTEGER," + |
| 175 | "mesg TEXT);"); |
| 176 | |
| 177 | db.execSQL("CREATE TABLE status (" |
| 178 | + "_id INTEGER PRIMARY KEY," |
| 179 | + "stats_id INTEGER NOT NULL," |
| 180 | + "totalElapsedTime INTEGER NOT NULL DEFAULT 0," |
| 181 | + "numSyncs INTEGER NOT NULL DEFAULT 0," |
| 182 | + "numSourcePoll INTEGER NOT NULL DEFAULT 0," |
| 183 | + "numSourceServer INTEGER NOT NULL DEFAULT 0," |
| 184 | + "numSourceLocal INTEGER NOT NULL DEFAULT 0," |
| 185 | + "numSourceUser INTEGER NOT NULL DEFAULT 0," |
| 186 | + "lastSuccessTime INTEGER," |
| 187 | + "lastSuccessSource INTEGER," |
| 188 | + "lastFailureTime INTEGER," |
| 189 | + "lastFailureSource INTEGER," |
| 190 | + "lastFailureMesg STRING," |
| 191 | + "initialFailureTime INTEGER," |
| 192 | + "pending INTEGER NOT NULL DEFAULT 0);"); |
| 193 | |
| 194 | db.execSQL("CREATE TABLE active (" |
| 195 | + "_id INTEGER PRIMARY KEY," |
| 196 | + "authority TEXT," |
| 197 | + "account TEXT," |
| 198 | + "startTime INTEGER);"); |
| 199 | |
| 200 | db.execSQL("CREATE INDEX historyEventTime ON history (eventTime)"); |
| 201 | |
| 202 | db.execSQL("CREATE TABLE settings (" + |
| 203 | "name TEXT PRIMARY KEY," + |
| 204 | "value TEXT);"); |
| 205 | } |
| 206 | |
| 207 | @Override |
| 208 | public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| 209 | if (oldVersion == 9 && newVersion == 10) { |
| 210 | Log.w(TAG, "Upgrading database from version " + oldVersion + " to " |
| 211 | + newVersion + ", which will preserve old data"); |
| 212 | db.execSQL("ALTER TABLE status ADD COLUMN initialFailureTime INTEGER"); |
| 213 | return; |
| 214 | } |
| 215 | |
| 216 | Log.w(TAG, "Upgrading database from version " + oldVersion + " to " |
| 217 | + newVersion + ", which will destroy all old data"); |
| 218 | db.execSQL("DROP TABLE IF EXISTS pending"); |
| 219 | db.execSQL("DROP TABLE IF EXISTS stats"); |
| 220 | db.execSQL("DROP TABLE IF EXISTS history"); |
| 221 | db.execSQL("DROP TABLE IF EXISTS settings"); |
| 222 | db.execSQL("DROP TABLE IF EXISTS active"); |
| 223 | db.execSQL("DROP TABLE IF EXISTS status"); |
| 224 | onCreate(db); |
| 225 | } |
| 226 | |
| 227 | @Override |
| 228 | public void onOpen(SQLiteDatabase db) { |
| 229 | if (!db.isReadOnly()) { |
| 230 | db.delete("active", null, null); |
| 231 | db.insert("active", "account", null); |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | protected void doDatabaseCleanup(String[] accounts) { |
| 237 | HashSet<String> currentAccounts = new HashSet<String>(); |
| 238 | for (String account : accounts) currentAccounts.add(account); |
| 239 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 240 | Cursor cursor = db.query("stats", STATS_ACCOUNT_PROJECTION, |
| 241 | null /* where */, null /* where args */, Sync.Stats.ACCOUNT, |
| 242 | null /* having */, null /* order by */); |
| 243 | try { |
| 244 | while (cursor.moveToNext()) { |
| 245 | String account = cursor.getString(0); |
| 246 | if (TextUtils.isEmpty(account)) { |
| 247 | continue; |
| 248 | } |
| 249 | if (!currentAccounts.contains(account)) { |
| 250 | String where = Sync.Stats.ACCOUNT + "=?"; |
| 251 | int numDeleted; |
| 252 | numDeleted = db.delete("stats", where, new String[]{account}); |
| 253 | if (Config.LOGD) { |
| 254 | Log.d(TAG, "deleted " + numDeleted |
| 255 | + " records from stats table" |
| 256 | + " for account " + account); |
| 257 | } |
| 258 | } |
| 259 | } |
| 260 | } finally { |
| 261 | cursor.close(); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | protected void setActiveSync(SyncManager.ActiveSyncContext activeSyncContext) { |
| 266 | if (activeSyncContext != null) { |
| 267 | updateActiveSync(activeSyncContext.mSyncOperation.account, |
| 268 | activeSyncContext.mSyncOperation.authority, activeSyncContext.mStartTime); |
| 269 | } else { |
| 270 | // we indicate that the sync is not active by passing null for all the parameters |
| 271 | updateActiveSync(null, null, null); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | private int updateActiveSync(String account, String authority, Long startTime) { |
| 276 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 277 | ContentValues values = new ContentValues(); |
| 278 | values.put("account", account); |
| 279 | values.put("authority", authority); |
| 280 | values.put("startTime", startTime); |
| 281 | int numChanges = db.update("active", values, null, null); |
| 282 | if (numChanges > 0) { |
| 283 | mContext.getContentResolver().notifyChange(Sync.Active.CONTENT_URI, |
| 284 | null /* this change wasn't made through an observer */); |
| 285 | } |
| 286 | return numChanges; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Implements the {@link ContentProvider#query} method |
| 291 | */ |
| 292 | public Cursor query(Uri url, String[] projectionIn, |
| 293 | String selection, String[] selectionArgs, String sort) { |
| 294 | SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); |
| 295 | |
| 296 | // Generate the body of the query |
| 297 | int match = sURLMatcher.match(url); |
| 298 | String groupBy = null; |
| 299 | switch (match) { |
| 300 | case STATS: |
| 301 | qb.setTables("stats"); |
| 302 | break; |
| 303 | case STATS_ID: |
| 304 | qb.setTables("stats"); |
| 305 | qb.appendWhere("_id="); |
| 306 | qb.appendWhere(url.getPathSegments().get(1)); |
| 307 | break; |
| 308 | case HISTORY: |
| 309 | // join the stats and history tables, so the caller can get |
| 310 | // the account and authority information as part of this query. |
| 311 | qb.setTables("stats, history"); |
| 312 | qb.setProjectionMap(HISTORY_PROJECTION_MAP); |
| 313 | qb.appendWhere("stats._id = history.stats_id"); |
| 314 | break; |
| 315 | case ACTIVE: |
| 316 | qb.setTables("active"); |
| 317 | qb.setProjectionMap(ACTIVE_PROJECTION_MAP); |
| 318 | qb.appendWhere("account is not null"); |
| 319 | break; |
| 320 | case PENDING: |
| 321 | qb.setTables("pending"); |
| 322 | qb.setProjectionMap(PENDING_PROJECTION_MAP); |
| 323 | groupBy = "account, authority"; |
| 324 | break; |
| 325 | case STATUS: |
| 326 | // join the stats and status tables, so the caller can get |
| 327 | // the account and authority information as part of this query. |
| 328 | qb.setTables("stats, status"); |
| 329 | qb.setProjectionMap(STATUS_PROJECTION_MAP); |
| 330 | qb.appendWhere("stats._id = status.stats_id"); |
| 331 | break; |
| 332 | case HISTORY_ID: |
| 333 | // join the stats and history tables, so the caller can get |
| 334 | // the account and authority information as part of this query. |
| 335 | qb.setTables("stats, history"); |
| 336 | qb.setProjectionMap(HISTORY_PROJECTION_MAP); |
| 337 | qb.appendWhere("stats._id = history.stats_id"); |
| 338 | qb.appendWhere("AND history._id="); |
| 339 | qb.appendWhere(url.getPathSegments().get(1)); |
| 340 | break; |
| 341 | case SETTINGS: |
| 342 | qb.setTables("settings"); |
| 343 | break; |
| 344 | default: |
| 345 | throw new IllegalArgumentException("Unknown URL " + url); |
| 346 | } |
| 347 | |
| 348 | if (match == SETTINGS) { |
| 349 | mContext.enforceCallingOrSelfPermission(Manifest.permission.READ_SYNC_SETTINGS, |
| 350 | "no permission to read the sync settings"); |
| 351 | } else { |
| 352 | mContext.enforceCallingOrSelfPermission(Manifest.permission.READ_SYNC_STATS, |
| 353 | "no permission to read the sync stats"); |
| 354 | } |
| 355 | SQLiteDatabase db = mOpenHelper.getReadableDatabase(); |
| 356 | Cursor c = qb.query(db, projectionIn, selection, selectionArgs, groupBy, null, sort); |
| 357 | c.setNotificationUri(mContext.getContentResolver(), url); |
| 358 | return c; |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Implements the {@link ContentProvider#insert} method |
| 363 | * @param callerIsTheProvider true if this is being called via the |
| 364 | * {@link ContentProvider#insert} in method rather than directly. |
| 365 | * @throws UnsupportedOperationException if callerIsTheProvider is true and the url isn't |
| 366 | * for the Settings table. |
| 367 | */ |
| 368 | public Uri insert(boolean callerIsTheProvider, Uri url, ContentValues values) { |
| 369 | String table; |
| 370 | long rowID; |
| 371 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 372 | final int match = sURLMatcher.match(url); |
| 373 | checkCaller(callerIsTheProvider, match); |
| 374 | switch (match) { |
| 375 | case SETTINGS: |
| 376 | mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS, |
| 377 | "no permission to write the sync settings"); |
| 378 | table = "settings"; |
| 379 | rowID = db.replace(table, null, values); |
| 380 | break; |
| 381 | default: |
| 382 | throw new IllegalArgumentException("Unknown URL " + url); |
| 383 | } |
| 384 | |
| 385 | |
| 386 | if (rowID > 0) { |
| 387 | mContext.getContentResolver().notifyChange(url, null /* observer */); |
| 388 | return Uri.parse("content://sync/" + table + "/" + rowID); |
| 389 | } |
| 390 | |
| 391 | return null; |
| 392 | } |
| 393 | |
| 394 | private static void checkCaller(boolean callerIsTheProvider, int match) { |
| 395 | if (callerIsTheProvider && match != SETTINGS) { |
| 396 | throw new UnsupportedOperationException( |
| 397 | "only the settings are modifiable via the ContentProvider interface"); |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | /** |
| 402 | * Implements the {@link ContentProvider#delete} method |
| 403 | * @param callerIsTheProvider true if this is being called via the |
| 404 | * {@link ContentProvider#delete} in method rather than directly. |
| 405 | * @throws UnsupportedOperationException if callerIsTheProvider is true and the url isn't |
| 406 | * for the Settings table. |
| 407 | */ |
| 408 | public int delete(boolean callerIsTheProvider, Uri url, String where, String[] whereArgs) { |
| 409 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 410 | int match = sURLMatcher.match(url); |
| 411 | |
| 412 | int numRows; |
| 413 | switch (match) { |
| 414 | case SETTINGS: |
| 415 | mContext.enforceCallingOrSelfPermission(Manifest.permission.WRITE_SYNC_SETTINGS, |
| 416 | "no permission to write the sync settings"); |
| 417 | numRows = db.delete("settings", where, whereArgs); |
| 418 | break; |
| 419 | default: |
| 420 | throw new UnsupportedOperationException("Cannot delete URL: " + url); |
| 421 | } |
| 422 | |
| 423 | if (numRows > 0) { |
| 424 | mContext.getContentResolver().notifyChange(url, null /* observer */); |
| 425 | } |
| 426 | return numRows; |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Implements the {@link ContentProvider#update} method |
| 431 | * @param callerIsTheProvider true if this is being called via the |
| 432 | * {@link ContentProvider#update} in method rather than directly. |
| 433 | * @throws UnsupportedOperationException if callerIsTheProvider is true and the url isn't |
| 434 | * for the Settings table. |
| 435 | */ |
| 436 | public int update(boolean callerIsTheProvider, Uri url, ContentValues initialValues, |
| 437 | String where, String[] whereArgs) { |
| 438 | switch (sURLMatcher.match(url)) { |
| 439 | case SETTINGS: |
| 440 | throw new UnsupportedOperationException("updating url " + url |
| 441 | + " is not allowed, use insert instead"); |
| 442 | default: |
| 443 | throw new UnsupportedOperationException("Cannot update URL: " + url); |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Implements the {@link ContentProvider#getType} method |
| 449 | */ |
| 450 | public String getType(Uri url) { |
| 451 | int match = sURLMatcher.match(url); |
| 452 | switch (match) { |
| 453 | case SETTINGS: |
| 454 | return "vnd.android.cursor.dir/sync-settings"; |
| 455 | default: |
| 456 | throw new IllegalArgumentException("Unknown URL"); |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | protected Uri insertIntoPending(ContentValues values) { |
| 461 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 462 | try { |
| 463 | db.beginTransaction(); |
| 464 | long rowId = db.insert("pending", Sync.Pending.ACCOUNT, values); |
| 465 | if (rowId < 0) return null; |
| 466 | String account = values.getAsString(Sync.Pending.ACCOUNT); |
| 467 | String authority = values.getAsString(Sync.Pending.AUTHORITY); |
| 468 | |
| 469 | long statsId = createStatsRowIfNecessary(account, authority); |
| 470 | createStatusRowIfNecessary(statsId); |
| 471 | |
| 472 | values.clear(); |
| 473 | values.put(Sync.Status.PENDING, 1); |
| 474 | int numUpdatesStatus = db.update("status", values, "stats_id=" + statsId, null); |
| 475 | |
| 476 | db.setTransactionSuccessful(); |
| 477 | |
| 478 | mContext.getContentResolver().notifyChange(Sync.Pending.CONTENT_URI, |
| 479 | null /* no observer initiated this change */); |
| 480 | if (numUpdatesStatus > 0) { |
| 481 | mContext.getContentResolver().notifyChange(Sync.Status.CONTENT_URI, |
| 482 | null /* no observer initiated this change */); |
| 483 | } |
| 484 | return ContentUris.withAppendedId(Sync.Pending.CONTENT_URI, rowId); |
| 485 | } finally { |
| 486 | db.endTransaction(); |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | int deleteFromPending(long rowId) { |
| 491 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 492 | db.beginTransaction(); |
| 493 | try { |
| 494 | String account; |
| 495 | String authority; |
| 496 | Cursor c = db.query("pending", |
| 497 | new String[]{Sync.Pending.ACCOUNT, Sync.Pending.AUTHORITY}, |
| 498 | "_id=" + rowId, null, null, null, null); |
| 499 | try { |
| 500 | if (c.getCount() != 1) { |
| 501 | return 0; |
| 502 | } |
| 503 | c.moveToNext(); |
| 504 | account = c.getString(0); |
| 505 | authority = c.getString(1); |
| 506 | } finally { |
| 507 | c.close(); |
| 508 | } |
| 509 | db.delete("pending", "_id=" + rowId, null /* no where args */); |
| 510 | final String[] accountAuthorityWhereArgs = new String[]{account, authority}; |
| 511 | boolean isPending = 0 < DatabaseUtils.longForQuery(db, |
| 512 | "SELECT COUNT(*) FROM PENDING WHERE account=? AND authority=?", |
| 513 | accountAuthorityWhereArgs); |
| 514 | if (!isPending) { |
| 515 | long statsId = createStatsRowIfNecessary(account, authority); |
| 516 | db.execSQL("UPDATE status SET pending=0 WHERE stats_id=" + statsId); |
| 517 | } |
| 518 | db.setTransactionSuccessful(); |
| 519 | |
| 520 | mContext.getContentResolver().notifyChange(Sync.Pending.CONTENT_URI, |
| 521 | null /* no observer initiated this change */); |
| 522 | if (!isPending) { |
| 523 | mContext.getContentResolver().notifyChange(Sync.Status.CONTENT_URI, |
| 524 | null /* no observer initiated this change */); |
| 525 | } |
| 526 | return 1; |
| 527 | } finally { |
| 528 | db.endTransaction(); |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | int clearPending() { |
| 533 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 534 | db.beginTransaction(); |
| 535 | try { |
| 536 | int numChanges = db.delete("pending", null, null /* no where args */); |
| 537 | if (numChanges > 0) { |
| 538 | db.execSQL("UPDATE status SET pending=0"); |
| 539 | mContext.getContentResolver().notifyChange(Sync.Pending.CONTENT_URI, |
| 540 | null /* no observer initiated this change */); |
| 541 | mContext.getContentResolver().notifyChange(Sync.Status.CONTENT_URI, |
| 542 | null /* no observer initiated this change */); |
| 543 | } |
| 544 | db.setTransactionSuccessful(); |
| 545 | return numChanges; |
| 546 | } finally { |
| 547 | db.endTransaction(); |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | /** |
| 552 | * Returns a cursor over all the pending syncs in no particular order. This cursor is not |
| 553 | * "live", in that if changes are made to the pending table any observers on this cursor |
| 554 | * will not be notified. |
| 555 | * @param projection Return only these columns. If null then all columns are returned. |
| 556 | * @return the cursor of pending syncs |
| 557 | */ |
| 558 | public Cursor getPendingSyncsCursor(String[] projection) { |
| 559 | SQLiteDatabase db = mOpenHelper.getReadableDatabase(); |
| 560 | return db.query("pending", projection, null, null, null, null, null); |
| 561 | } |
| 562 | |
| 563 | // @VisibleForTesting |
| 564 | static final long MILLIS_IN_4WEEKS = 1000L * 60 * 60 * 24 * 7 * 4; |
| 565 | |
| 566 | private boolean purgeOldHistoryEvents(long now) { |
| 567 | // remove events that are older than MILLIS_IN_4WEEKS |
| 568 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 569 | int numDeletes = db.delete("history", "eventTime<" + (now - MILLIS_IN_4WEEKS), null); |
| 570 | if (Log.isLoggable(TAG, Log.VERBOSE)) { |
| 571 | if (numDeletes > 0) { |
| 572 | Log.v(TAG, "deleted " + numDeletes + " old event(s) from the sync history"); |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | // keep only the last MAX_HISTORY_EVENTS_TO_KEEP history events |
| 577 | numDeletes += db.delete("history", "eventTime < (select min(eventTime) from " |
| 578 | + "(select eventTime from history order by eventTime desc limit ?))", |
| 579 | new String[]{String.valueOf(MAX_HISTORY_EVENTS_TO_KEEP)}); |
| 580 | |
| 581 | return numDeletes > 0; |
| 582 | } |
| 583 | |
| 584 | public long insertStartSyncEvent(String account, String authority, long now, int source) { |
| 585 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 586 | long statsId = createStatsRowIfNecessary(account, authority); |
| 587 | |
| 588 | purgeOldHistoryEvents(now); |
| 589 | ContentValues values = new ContentValues(); |
| 590 | values.put(Sync.History.STATS_ID, statsId); |
| 591 | values.put(Sync.History.EVENT_TIME, now); |
| 592 | values.put(Sync.History.SOURCE, source); |
| 593 | values.put(Sync.History.EVENT, Sync.History.EVENT_START); |
| 594 | long rowId = db.insert("history", null, values); |
| 595 | mContext.getContentResolver().notifyChange(Sync.History.CONTENT_URI, null /* observer */); |
| 596 | mContext.getContentResolver().notifyChange(Sync.Status.CONTENT_URI, null /* observer */); |
| 597 | return rowId; |
| 598 | } |
| 599 | |
| 600 | public void stopSyncEvent(long historyId, long elapsedTime, String resultMessage, |
| 601 | long downstreamActivity, long upstreamActivity) { |
| 602 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 603 | db.beginTransaction(); |
| 604 | try { |
| 605 | ContentValues values = new ContentValues(); |
| 606 | values.put(Sync.History.ELAPSED_TIME, elapsedTime); |
| 607 | values.put(Sync.History.EVENT, Sync.History.EVENT_STOP); |
| 608 | values.put(Sync.History.MESG, resultMessage); |
| 609 | values.put(Sync.History.DOWNSTREAM_ACTIVITY, downstreamActivity); |
| 610 | values.put(Sync.History.UPSTREAM_ACTIVITY, upstreamActivity); |
| 611 | |
| 612 | int count = db.update("history", values, "_id=?", |
| 613 | new String[]{Long.toString(historyId)}); |
| 614 | // We think that count should always be 1 but don't want to change this until after |
| 615 | // launch. |
| 616 | if (count > 0) { |
| 617 | int source = (int) DatabaseUtils.longForQuery(db, |
| 618 | "SELECT source FROM history WHERE _id=" + historyId, null); |
| 619 | long eventTime = DatabaseUtils.longForQuery(db, |
| 620 | "SELECT eventTime FROM history WHERE _id=" + historyId, null); |
| 621 | long statsId = DatabaseUtils.longForQuery(db, |
| 622 | "SELECT stats_id FROM history WHERE _id=" + historyId, null); |
| 623 | |
| 624 | createStatusRowIfNecessary(statsId); |
| 625 | |
| 626 | // update the status table to reflect this sync |
| 627 | StringBuilder sb = new StringBuilder(); |
| 628 | ArrayList<String> bindArgs = new ArrayList<String>(); |
| 629 | sb.append("UPDATE status SET"); |
| 630 | sb.append(" numSyncs=numSyncs+1"); |
| 631 | sb.append(", totalElapsedTime=totalElapsedTime+" + elapsedTime); |
| 632 | switch (source) { |
| 633 | case Sync.History.SOURCE_LOCAL: |
| 634 | sb.append(", numSourceLocal=numSourceLocal+1"); |
| 635 | break; |
| 636 | case Sync.History.SOURCE_POLL: |
| 637 | sb.append(", numSourcePoll=numSourcePoll+1"); |
| 638 | break; |
| 639 | case Sync.History.SOURCE_USER: |
| 640 | sb.append(", numSourceUser=numSourceUser+1"); |
| 641 | break; |
| 642 | case Sync.History.SOURCE_SERVER: |
| 643 | sb.append(", numSourceServer=numSourceServer+1"); |
| 644 | break; |
| 645 | } |
| 646 | |
| 647 | final String statsIdString = String.valueOf(statsId); |
| 648 | final long lastSyncTime = (eventTime + elapsedTime); |
| 649 | if (Sync.History.MESG_SUCCESS.equals(resultMessage)) { |
| 650 | // - if successful, update the successful columns |
| 651 | sb.append(", lastSuccessTime=" + lastSyncTime); |
| 652 | sb.append(", lastSuccessSource=" + source); |
| 653 | sb.append(", lastFailureTime=null"); |
| 654 | sb.append(", lastFailureSource=null"); |
| 655 | sb.append(", lastFailureMesg=null"); |
| 656 | sb.append(", initialFailureTime=null"); |
| 657 | } else if (!Sync.History.MESG_CANCELED.equals(resultMessage)) { |
| 658 | sb.append(", lastFailureTime=" + lastSyncTime); |
| 659 | sb.append(", lastFailureSource=" + source); |
| 660 | sb.append(", lastFailureMesg=?"); |
| 661 | bindArgs.add(resultMessage); |
| 662 | long initialFailureTime = DatabaseUtils.longForQuery(db, |
| 663 | SELECT_INITIAL_FAILURE_TIME_QUERY_STRING, |
| 664 | new String[]{statsIdString, String.valueOf(lastSyncTime)}); |
| 665 | sb.append(", initialFailureTime=" + initialFailureTime); |
| 666 | } |
| 667 | sb.append(" WHERE stats_id=?"); |
| 668 | bindArgs.add(statsIdString); |
| 669 | db.execSQL(sb.toString(), bindArgs.toArray()); |
| 670 | db.setTransactionSuccessful(); |
| 671 | mContext.getContentResolver().notifyChange(Sync.History.CONTENT_URI, |
| 672 | null /* observer */); |
| 673 | mContext.getContentResolver().notifyChange(Sync.Status.CONTENT_URI, |
| 674 | null /* observer */); |
| 675 | } |
| 676 | } finally { |
| 677 | db.endTransaction(); |
| 678 | } |
| 679 | } |
| 680 | |
| 681 | /** |
| 682 | * If sync is failing for any of the provider/accounts then determine the time at which it |
| 683 | * started failing and return the earliest time over all the provider/accounts. If none are |
| 684 | * failing then return 0. |
| 685 | */ |
| 686 | public long getInitialSyncFailureTime() { |
| 687 | SQLiteDatabase db = mOpenHelper.getReadableDatabase(); |
| 688 | // Join the settings for a provider with the status so that we can easily |
| 689 | // check if each provider is enabled for syncing. We also join in the overall |
| 690 | // enabled flag ("listen_for_tickles") to each row so that we don't need to |
| 691 | // make a separate DB lookup to access it. |
| 692 | Cursor c = db.rawQuery("" |
| 693 | + "SELECT initialFailureTime, s1.value, s2.value " |
| 694 | + "FROM status " |
| 695 | + "LEFT JOIN stats ON status.stats_id=stats._id " |
| 696 | + "LEFT JOIN settings as s1 ON 'sync_provider_' || authority=s1.name " |
| 697 | + "LEFT JOIN settings as s2 ON s2.name='listen_for_tickles' " |
| 698 | + "where initialFailureTime is not null " |
| 699 | + " AND lastFailureMesg!=" + Sync.History.ERROR_TOO_MANY_DELETIONS |
| 700 | + " AND lastFailureMesg!=" + Sync.History.ERROR_AUTHENTICATION |
| 701 | + " AND lastFailureMesg!=" + Sync.History.ERROR_SYNC_ALREADY_IN_PROGRESS |
| 702 | + " AND authority!='subscribedfeeds' " |
| 703 | + " ORDER BY initialFailureTime", null); |
| 704 | try { |
| 705 | while (c.moveToNext()) { |
| 706 | // these settings default to true, so if they are null treat them as enabled |
| 707 | final String providerEnabledString = c.getString(1); |
| 708 | if (providerEnabledString != null && !Boolean.parseBoolean(providerEnabledString)) { |
| 709 | continue; |
| 710 | } |
| 711 | final String allEnabledString = c.getString(2); |
| 712 | if (allEnabledString != null && !Boolean.parseBoolean(allEnabledString)) { |
| 713 | continue; |
| 714 | } |
| 715 | return c.getLong(0); |
| 716 | } |
| 717 | } finally { |
| 718 | c.close(); |
| 719 | } |
| 720 | return 0; |
| 721 | } |
| 722 | |
| 723 | private void createStatusRowIfNecessary(long statsId) { |
| 724 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 725 | boolean statusExists = 0 != DatabaseUtils.longForQuery(db, |
| 726 | "SELECT count(*) FROM status WHERE stats_id=" + statsId, null); |
| 727 | if (!statusExists) { |
| 728 | ContentValues values = new ContentValues(); |
| 729 | values.put("stats_id", statsId); |
| 730 | db.insert("status", null, values); |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | private long createStatsRowIfNecessary(String account, String authority) { |
| 735 | SQLiteDatabase db = mOpenHelper.getWritableDatabase(); |
| 736 | StringBuilder where = new StringBuilder(); |
| 737 | where.append(Sync.Stats.ACCOUNT + "= ?"); |
| 738 | where.append(" and " + Sync.Stats.AUTHORITY + "= ?"); |
| 739 | Cursor cursor = query(Sync.Stats.CONTENT_URI, |
| 740 | Sync.Stats.SYNC_STATS_PROJECTION, |
| 741 | where.toString(), new String[] { account, authority }, |
| 742 | null /* order */); |
| 743 | try { |
| 744 | long id; |
| 745 | if (cursor.moveToFirst()) { |
| 746 | id = cursor.getLong(cursor.getColumnIndexOrThrow(Sync.Stats._ID)); |
| 747 | } else { |
| 748 | ContentValues values = new ContentValues(); |
| 749 | values.put(Sync.Stats.ACCOUNT, account); |
| 750 | values.put(Sync.Stats.AUTHORITY, authority); |
| 751 | id = db.insert("stats", null, values); |
| 752 | } |
| 753 | return id; |
| 754 | } finally { |
| 755 | cursor.close(); |
| 756 | } |
| 757 | } |
| 758 | } |