QGCTileCacheWorker.cpp 47 KB
Newer Older
1 2 3 4 5 6 7 8
/****************************************************************************
 *
 *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/
dogmaphobic's avatar
dogmaphobic committed
9 10 11 12 13 14 15 16 17 18


/**
 * @file
 *   @brief Map Tile Cache Worker Thread
 *
 *   @author Gus Grubba <mavlink@grubba.com>
 *
 */

dogmaphobic's avatar
dogmaphobic committed
19 20 21
#include "QGCMapEngine.h"
#include "QGCMapTileSet.h"

dogmaphobic's avatar
dogmaphobic committed
22 23 24 25 26 27 28 29 30 31
#include <QVariant>
#include <QtSql/QSqlQuery>
#include <QSqlError>
#include <QDebug>
#include <QDateTime>
#include <QApplication>
#include <QFile>

#include "time.h"

32 33 34
static const char*      kDefaultSet     = "Default Tile Set";
static const QString    kSession        = QStringLiteral("QGeoTileWorkerSession");
static const QString    kExportSession  = QStringLiteral("QGeoTileExportSession");
dogmaphobic's avatar
dogmaphobic committed
35 36 37 38 39 40 41 42 43 44

QGC_LOGGING_CATEGORY(QGCTileCacheLog, "QGCTileCacheLog")

//-- Update intervals

#define LONG_TIMEOUT        5
#define SHORT_TIMEOUT       2

//-----------------------------------------------------------------------------
QGCCacheWorker::QGCCacheWorker()
45
    : _db(nullptr)
dogmaphobic's avatar
dogmaphobic committed
46 47 48 49 50 51 52 53 54
    , _valid(false)
    , _failed(false)
    , _defaultSet(UINT64_MAX)
    , _totalSize(0)
    , _totalCount(0)
    , _defaultSize(0)
    , _defaultCount(0)
    , _lastUpdate(0)
    , _updateTimeout(SHORT_TIMEOUT)
55
    , _hostLookupID(0)
dogmaphobic's avatar
dogmaphobic committed
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
{
}

//-----------------------------------------------------------------------------
QGCCacheWorker::~QGCCacheWorker()
{
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::setDatabaseFile(const QString& path)
{
    _databasePath = path;
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::quit()
{
75 76 77
    if(_hostLookupID) {
        QHostInfo::abortHostLookup(_hostLookupID);
    }
dogmaphobic's avatar
dogmaphobic committed
78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
    _mutex.lock();
    while(_taskQueue.count()) {
        QGCMapTask* task = _taskQueue.dequeue();
        delete task;
    }
    _mutex.unlock();
    if(this->isRunning()) {
        _waitc.wakeAll();
    }
}

//-----------------------------------------------------------------------------
bool
QGCCacheWorker::enqueueTask(QGCMapTask* task)
{
    //-- If not initialized, the only allowed task is Init
    if(!_valid && task->type() != QGCMapTask::taskInit) {
        task->setError("Database Not Initialized");
        task->deleteLater();
        return false;
    }
99 100 101 102 103 104 105
    _mutex.lock();
    _taskQueue.enqueue(task);
    _mutex.unlock();
    if(this->isRunning()) {
        _waitc.wakeAll();
    } else {
        this->start(QThread::HighPriority);
dogmaphobic's avatar
dogmaphobic committed
106
    }
107
    return true;
dogmaphobic's avatar
dogmaphobic committed
108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::run()
{
    if(!_valid && !_failed) {
        _init();
    }
    if(_valid) {
        _db = new QSqlDatabase(QSqlDatabase::addDatabase("QSQLITE", kSession));
        _db->setDatabaseName(_databasePath);
        _db->setConnectOptions("QSQLITE_ENABLE_SHARED_CACHE");
        _valid = _db->open();
    }
    while(true) {
        QGCMapTask* task;
        if(_taskQueue.count()) {
            _mutex.lock();
            task = _taskQueue.dequeue();
            _mutex.unlock();
            switch(task->type()) {
                case QGCMapTask::taskInit:
                    break;
                case QGCMapTask::taskCacheTile:
                    _saveTile(task);
                    break;
                case QGCMapTask::taskFetchTile:
                    _getTile(task);
                    break;
                case QGCMapTask::taskFetchTileSets:
                    _getTileSets(task);
                    break;
                case QGCMapTask::taskCreateTileSet:
                    _createTileSet(task);
                    break;
                case QGCMapTask::taskGetTileDownloadList:
                    _getTileDownloadList(task);
                    break;
                case QGCMapTask::taskUpdateTileDownloadState:
                    _updateTileDownloadState(task);
                    break;
                case QGCMapTask::taskDeleteTileSet:
                    _deleteTileSet(task);
                    break;
Gus Grubba's avatar
Gus Grubba committed
153 154 155
                case QGCMapTask::taskRenameTileSet:
                    _renameTileSet(task);
                    break;
dogmaphobic's avatar
dogmaphobic committed
156 157 158 159 160 161
                case QGCMapTask::taskPruneCache:
                    _pruneCache(task);
                    break;
                case QGCMapTask::taskReset:
                    _resetCacheDatabase(task);
                    break;
162 163 164
                case QGCMapTask::taskExport:
                    _exportSets(task);
                    break;
Gus Grubba's avatar
Gus Grubba committed
165 166 167
                case QGCMapTask::taskImport:
                    _importSets(task);
                    break;
168 169 170
                case QGCMapTask::taskTestInternet:
                    _testInternet();
                    break;
dogmaphobic's avatar
dogmaphobic committed
171 172 173
            }
            task->deleteLater();
            //-- Check for update timeout
174
            size_t count = static_cast<size_t>(_taskQueue.count());
dogmaphobic's avatar
dogmaphobic committed
175 176 177 178 179
            if(count > 100) {
                _updateTimeout = LONG_TIMEOUT;
            } else if(count < 25) {
                _updateTimeout = SHORT_TIMEOUT;
            }
180
            if(!count || (time(nullptr) - _lastUpdate > _updateTimeout)) {
dogmaphobic's avatar
dogmaphobic committed
181 182 183
                if(_valid) {
                    _updateTotals();
                }
dogmaphobic's avatar
dogmaphobic committed
184 185 186 187
            }
        } else {
            //-- Wait a bit before shutting things down
            _waitmutex.lock();
188
            unsigned long timeout = 5000;
189 190 191 192 193
            _waitc.wait(&_waitmutex, timeout);
            _waitmutex.unlock();
            _mutex.lock();
            //-- If nothing to do, close db and leave thread
            if(!_taskQueue.count()) {
dogmaphobic's avatar
dogmaphobic committed
194
                _mutex.unlock();
195
                break;
dogmaphobic's avatar
dogmaphobic committed
196
            }
197
            _mutex.unlock();
dogmaphobic's avatar
dogmaphobic committed
198 199 200 201
        }
    }
    if(_db) {
        delete _db;
202
        _db = nullptr;
dogmaphobic's avatar
dogmaphobic committed
203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
        QSqlDatabase::removeDatabase(kSession);
    }
}
//-----------------------------------------------------------------------------
bool
QGCCacheWorker::_findTileSetID(const QString name, quint64& setID)
{
    QSqlQuery query(*_db);
    QString s = QString("SELECT setID FROM TileSets WHERE name = \"%1\"").arg(name);
    if(query.exec(s)) {
        if(query.next()) {
            setID = query.value(0).toULongLong();
            return true;
        }
    }
    return false;
}

//-----------------------------------------------------------------------------
quint64
QGCCacheWorker::_getDefaultTileSet()
{
    if(_defaultSet != UINT64_MAX)
        return _defaultSet;
    QSqlQuery query(*_db);
    QString s = QString("SELECT setID FROM TileSets WHERE defaultSet = 1");
    if(query.exec(s)) {
        if(query.next()) {
            _defaultSet = query.value(0).toULongLong();
            return _defaultSet;
        }
    }
    return 1L;
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_saveTile(QGCMapTask *mtask)
{
    if(_valid) {
        QGCSaveTileTask* task = static_cast<QGCSaveTileTask*>(mtask);
        QSqlQuery query(*_db);
        query.prepare("INSERT INTO Tiles(hash, format, tile, size, type, date) VALUES(?, ?, ?, ?, ?, ?)");
        query.addBindValue(task->tile()->hash());
        query.addBindValue(task->tile()->format());
        query.addBindValue(task->tile()->img());
        query.addBindValue(task->tile()->img().size());
        query.addBindValue(task->tile()->type());
        query.addBindValue(QDateTime::currentDateTime().toTime_t());
        if(query.exec()) {
            quint64 tileID = query.lastInsertId().toULongLong();
            quint64 setID = task->tile()->set() == UINT64_MAX ? _getDefaultTileSet() : task->tile()->set();
            QString s = QString("INSERT INTO SetTiles(tileID, setID) VALUES(%1, %2)").arg(tileID).arg(setID);
            query.prepare(s);
            if(!query.exec()) {
                qWarning() << "Map Cache SQL error (add tile into SetTiles):" << query.lastError().text();
            }
            qCDebug(QGCTileCacheLog) << "_saveTile() HASH:" << task->tile()->hash();
        } else {
            //-- Tile was already there.
            //   QtLocation some times requests the same tile twice in a row. The first is saved, the second is already there.
        }
    } else {
        qWarning() << "Map Cache SQL error (saveTile() open db):" << _db->lastError();
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_getTile(QGCMapTask* mtask)
{
274
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
275 276 277 278 279 280 281 282 283 284
        return;
    }
    bool found = false;
    QGCFetchTileTask* task = static_cast<QGCFetchTileTask*>(mtask);
    QSqlQuery query(*_db);
    QString s = QString("SELECT tile, format, type FROM Tiles WHERE hash = \"%1\"").arg(task->hash());
    if(query.exec(s)) {
        if(query.next()) {
            QByteArray ar   = query.value(0).toByteArray();
            QString format  = query.value(1).toString();
285
            UrlFactory::MapType type = static_cast<UrlFactory::MapType>(query.value(2).toInt());
dogmaphobic's avatar
dogmaphobic committed
286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301
            qCDebug(QGCTileCacheLog) << "_getTile() (Found in DB) HASH:" << task->hash();
            QGCCacheTile* tile = new QGCCacheTile(task->hash(), ar, format, type);
            task->setTileFetched(tile);
            found = true;
        }
    }
    if(!found) {
        qCDebug(QGCTileCacheLog) << "_getTile() (NOT in DB) HASH:" << task->hash();
        task->setError("Tile not in cache database");
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_getTileSets(QGCMapTask* mtask)
{
302
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
303 304 305 306 307
        return;
    }
    QGCFetchTileSetTask* task = static_cast<QGCFetchTileSetTask*>(mtask);
    QSqlQuery query(*_db);
    QString s = QString("SELECT * FROM TileSets ORDER BY defaultSet DESC, name ASC");
dogmaphobic's avatar
dogmaphobic committed
308
    qCDebug(QGCTileCacheLog) << "_getTileSets(): " << s;
dogmaphobic's avatar
dogmaphobic committed
309 310 311
    if(query.exec(s)) {
        while(query.next()) {
            QString name = query.value("name").toString();
dogmaphobic's avatar
dogmaphobic committed
312
            QGCCachedTileSet* set = new QGCCachedTileSet(name);
dogmaphobic's avatar
dogmaphobic committed
313 314 315 316 317 318 319 320
            set->setId(query.value("setID").toULongLong());
            set->setMapTypeStr(query.value("typeStr").toString());
            set->setTopleftLat(query.value("topleftLat").toDouble());
            set->setTopleftLon(query.value("topleftLon").toDouble());
            set->setBottomRightLat(query.value("bottomRightLat").toDouble());
            set->setBottomRightLon(query.value("bottomRightLon").toDouble());
            set->setMinZoom(query.value("minZoom").toInt());
            set->setMaxZoom(query.value("maxZoom").toInt());
321
            set->setType(static_cast<UrlFactory::MapType>(query.value("type").toInt()));
dogmaphobic's avatar
dogmaphobic committed
322
            set->setTotalTileCount(query.value("numTiles").toUInt());
dogmaphobic's avatar
dogmaphobic committed
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339
            set->setDefaultSet(query.value("defaultSet").toInt() != 0);
            set->setCreationDate(QDateTime::fromTime_t(query.value("date").toUInt()));
            _updateSetTotals(set);
            //-- Object created here must be moved to app thread to be used there
            set->moveToThread(QApplication::instance()->thread());
            task->tileSetFetched(set);
        }
    } else {
        task->setError("No tile set in database");
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_updateSetTotals(QGCCachedTileSet* set)
{
    if(set->defaultSet()) {
340
        _updateTotals();
dogmaphobic's avatar
dogmaphobic committed
341 342 343 344
        set->setSavedTileCount(_totalCount);
        set->setSavedTileSize(_totalSize);
        set->setTotalTileCount(_defaultCount);
        set->setTotalTileSize(_defaultSize);
dogmaphobic's avatar
dogmaphobic committed
345 346 347 348
        return;
    }
    QSqlQuery subquery(*_db);
    QString sq = QString("SELECT COUNT(size), SUM(size) FROM Tiles A INNER JOIN SetTiles B on A.tileID = B.tileID WHERE B.setID = %1").arg(set->id());
dogmaphobic's avatar
dogmaphobic committed
349
    qCDebug(QGCTileCacheLog) << "_updateSetTotals(): " << sq;
dogmaphobic's avatar
dogmaphobic committed
350 351
    if(subquery.exec(sq)) {
        if(subquery.next()) {
dogmaphobic's avatar
dogmaphobic committed
352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383
            set->setSavedTileCount(subquery.value(0).toUInt());
            set->setSavedTileSize(subquery.value(1).toULongLong());
            qCDebug(QGCTileCacheLog) << "Set" << set->id() << "Totals:" << set->savedTileCount() << " " << set->savedTileSize() << "Expected: " << set->totalTileCount() << " " << set->totalTilesSize();
            //-- Update (estimated) size
            quint64 avg = UrlFactory::averageSizeForType(set->type());
            if(set->totalTileCount() <= set->savedTileCount()) {
                //-- We're done so the saved size is the total size
                set->setTotalTileSize(set->savedTileSize());
            } else {
                //-- Otherwise we need to estimate it.
                if(set->savedTileCount() > 10 && set->savedTileSize()) {
                    avg = set->savedTileSize() / set->savedTileCount();
                }
                set->setTotalTileSize(avg * set->totalTileCount());
            }
            //-- Now figure out the count for tiles unique to this set
            quint32 ucount = 0;
            quint64 usize  = 0;
            sq = QString("SELECT COUNT(size), SUM(size) FROM Tiles WHERE tileID IN (SELECT A.tileID FROM SetTiles A join SetTiles B on A.tileID = B.tileID WHERE B.setID = %1 GROUP by A.tileID HAVING COUNT(A.tileID) = 1)").arg(set->id());
            if(subquery.exec(sq)) {
                if(subquery.next()) {
                    //-- This is only accurate when all tiles are downloaded
                    ucount = subquery.value(0).toUInt();
                    usize  = subquery.value(1).toULongLong();
                }
            }
            //-- If we haven't downloaded it all, estimate size of unique tiles
            quint32 expectedUcount = set->totalTileCount() - set->savedTileCount();
            if(!ucount) {
                usize = expectedUcount * avg;
            } else {
                expectedUcount = ucount;
dogmaphobic's avatar
dogmaphobic committed
384
            }
dogmaphobic's avatar
dogmaphobic committed
385 386
            set->setUniqueTileCount(expectedUcount);
            set->setUniqueTileSize(usize);
dogmaphobic's avatar
dogmaphobic committed
387 388 389 390 391 392 393 394 395 396 397
        }
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_updateTotals()
{
    QSqlQuery query(*_db);
    QString s;
    s = QString("SELECT COUNT(size), SUM(size) FROM Tiles");
dogmaphobic's avatar
dogmaphobic committed
398
    qCDebug(QGCTileCacheLog) << "_updateTotals(): " << s;
dogmaphobic's avatar
dogmaphobic committed
399 400 401 402 403 404
    if(query.exec(s)) {
        if(query.next()) {
            _totalCount = query.value(0).toUInt();
            _totalSize  = query.value(1).toULongLong();
        }
    }
dogmaphobic's avatar
dogmaphobic committed
405 406
    s = QString("SELECT COUNT(size), SUM(size) FROM Tiles WHERE tileID IN (SELECT A.tileID FROM SetTiles A join SetTiles B on A.tileID = B.tileID WHERE B.setID = %1 GROUP by A.tileID HAVING COUNT(A.tileID) = 1)").arg(_getDefaultTileSet());
    qCDebug(QGCTileCacheLog) << "_updateTotals(): " << s;
dogmaphobic's avatar
dogmaphobic committed
407 408 409 410 411 412 413
    if(query.exec(s)) {
        if(query.next()) {
            _defaultCount = query.value(0).toUInt();
            _defaultSize  = query.value(1).toULongLong();
        }
    }
    emit updateTotals(_totalCount, _totalSize, _defaultCount, _defaultSize);
414
    _lastUpdate = time(nullptr);
dogmaphobic's avatar
dogmaphobic committed
415 416 417
}

//-----------------------------------------------------------------------------
dogmaphobic's avatar
dogmaphobic committed
418
quint64 QGCCacheWorker::_findTile(const QString hash)
dogmaphobic's avatar
dogmaphobic committed
419
{
dogmaphobic's avatar
dogmaphobic committed
420
    quint64 tileID = 0;
dogmaphobic's avatar
dogmaphobic committed
421
    QSqlQuery query(*_db);
dogmaphobic's avatar
dogmaphobic committed
422
    QString s = QString("SELECT tileID FROM Tiles WHERE hash = \"%1\"").arg(hash);
dogmaphobic's avatar
dogmaphobic committed
423 424
    if(query.exec(s)) {
        if(query.next()) {
dogmaphobic's avatar
dogmaphobic committed
425
            tileID = query.value(0).toULongLong();
dogmaphobic's avatar
dogmaphobic committed
426 427
        }
    }
dogmaphobic's avatar
dogmaphobic committed
428
    return tileID;
dogmaphobic's avatar
dogmaphobic committed
429 430 431 432 433 434 435 436 437 438 439 440
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_createTileSet(QGCMapTask *mtask)
{
    if(_valid) {
        //-- Create Tile Set
        quint32 actual_count = 0;
        QGCCreateTileSetTask* task = static_cast<QGCCreateTileSetTask*>(mtask);
        QSqlQuery query(*_db);
        query.prepare("INSERT INTO TileSets("
dogmaphobic's avatar
dogmaphobic committed
441 442
            "name, typeStr, topleftLat, topleftLon, bottomRightLat, bottomRightLon, minZoom, maxZoom, type, numTiles, date"
            ") VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
dogmaphobic's avatar
dogmaphobic committed
443 444 445 446 447 448 449 450 451
        query.addBindValue(task->tileSet()->name());
        query.addBindValue(task->tileSet()->mapTypeStr());
        query.addBindValue(task->tileSet()->topleftLat());
        query.addBindValue(task->tileSet()->topleftLon());
        query.addBindValue(task->tileSet()->bottomRightLat());
        query.addBindValue(task->tileSet()->bottomRightLon());
        query.addBindValue(task->tileSet()->minZoom());
        query.addBindValue(task->tileSet()->maxZoom());
        query.addBindValue(task->tileSet()->type());
dogmaphobic's avatar
dogmaphobic committed
452
        query.addBindValue(task->tileSet()->totalTileCount());
dogmaphobic's avatar
dogmaphobic committed
453 454 455 456
        query.addBindValue(QDateTime::currentDateTime().toTime_t());
        if(!query.exec()) {
            qWarning() << "Map Cache SQL error (add tileSet into TileSets):" << query.lastError().text();
        } else {
dogmaphobic's avatar
dogmaphobic committed
457
            //-- Get just created (auto-incremented) setID
dogmaphobic's avatar
dogmaphobic committed
458 459 460
            quint64 setID = query.lastInsertId().toULongLong();
            task->tileSet()->setId(setID);
            //-- Prepare Download List
dogmaphobic's avatar
dogmaphobic committed
461
            quint64 tileCount = 0;
Gus Grubba's avatar
Gus Grubba committed
462
            _db->transaction();
dogmaphobic's avatar
dogmaphobic committed
463 464 465 466
            for(int z = task->tileSet()->minZoom(); z <= task->tileSet()->maxZoom(); z++) {
                QGCTileSet set = QGCMapEngine::getTileCount(z,
                    task->tileSet()->topleftLon(), task->tileSet()->topleftLat(),
                    task->tileSet()->bottomRightLon(), task->tileSet()->bottomRightLat(), task->tileSet()->type());
dogmaphobic's avatar
dogmaphobic committed
467
                tileCount += set.tileCount;
dogmaphobic's avatar
dogmaphobic committed
468 469 470 471 472
                UrlFactory::MapType type = task->tileSet()->type();
                for(int x = set.tileX0; x <= set.tileX1; x++) {
                    for(int y = set.tileY0; y <= set.tileY1; y++) {
                        //-- See if tile is already downloaded
                        QString hash = QGCMapEngine::getTileHash(type, x, y, z);
dogmaphobic's avatar
dogmaphobic committed
473 474
                        quint64 tileID = _findTile(hash);
                        if(!tileID) {
dogmaphobic's avatar
dogmaphobic committed
475 476 477 478 479 480 481 482 483 484 485 486 487 488 489
                            //-- Set to download
                            query.prepare("INSERT OR IGNORE INTO TilesDownload(setID, hash, type, x, y, z, state) VALUES(?, ?, ?, ?, ? ,? ,?)");
                            query.addBindValue(setID);
                            query.addBindValue(hash);
                            query.addBindValue(type);
                            query.addBindValue(x);
                            query.addBindValue(y);
                            query.addBindValue(z);
                            query.addBindValue(0);
                            if(!query.exec()) {
                                qWarning() << "Map Cache SQL error (add tile into TilesDownload):" << query.lastError().text();
                                mtask->setError("Error creating tile set download list");
                                return;
                            } else
                                actual_count++;
dogmaphobic's avatar
dogmaphobic committed
490 491 492 493 494 495 496 497
                        } else {
                            //-- Tile already in the database. No need to dowload.
                            QString s = QString("INSERT OR IGNORE INTO SetTiles(tileID, setID) VALUES(%1, %2)").arg(tileID).arg(setID);
                            query.prepare(s);
                            if(!query.exec()) {
                                qWarning() << "Map Cache SQL error (add tile into SetTiles):" << query.lastError().text();
                            }
                            qCDebug(QGCTileCacheLog) << "_createTileSet() Already Cached HASH:" << hash;
dogmaphobic's avatar
dogmaphobic committed
498 499 500 501
                        }
                    }
                }
            }
Gus Grubba's avatar
Gus Grubba committed
502
            _db->commit();
dogmaphobic's avatar
dogmaphobic committed
503 504 505 506 507 508 509 510 511 512 513 514 515
            //-- Done
            _updateSetTotals(task->tileSet());
            task->setTileSetSaved();
            return;
        }
    }
    mtask->setError("Error saving tile set");
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_getTileDownloadList(QGCMapTask* mtask)
{
516
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
517 518 519 520 521 522 523 524 525 526
        return;
    }
    QList<QGCTile*> tiles;
    QGCGetTileDownloadListTask* task = static_cast<QGCGetTileDownloadListTask*>(mtask);
    QSqlQuery query(*_db);
    QString s = QString("SELECT hash, type, x, y, z FROM TilesDownload WHERE setID = %1 AND state = 0 LIMIT %2").arg(task->setID()).arg(task->count());
    if(query.exec(s)) {
        while(query.next()) {
            QGCTile* tile = new QGCTile;
            tile->setHash(query.value("hash").toString());
527
            tile->setType(static_cast<UrlFactory::MapType>(query.value("type").toInt()));
dogmaphobic's avatar
dogmaphobic committed
528 529 530 531 532 533
            tile->setX(query.value("x").toInt());
            tile->setY(query.value("y").toInt());
            tile->setZ(query.value("z").toInt());
            tiles.append(tile);
        }
        for(int i = 0; i < tiles.size(); i++) {
534
            s = QString("UPDATE TilesDownload SET state = %1 WHERE setID = %2 and hash = \"%3\"").arg(static_cast<int>(QGCTile::StateDownloading)).arg(task->setID()).arg(tiles[i]->hash());
dogmaphobic's avatar
dogmaphobic committed
535 536 537 538 539 540 541 542 543 544 545 546
            if(!query.exec(s)) {
                qWarning() << "Map Cache SQL error (set TilesDownload state):" << query.lastError().text();
            }
        }
    }
    task->setTileListFetched(tiles);
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_updateTileDownloadState(QGCMapTask* mtask)
{
547
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
548 549 550 551 552 553 554 555 556
        return;
    }
    QGCUpdateTileDownloadStateTask* task = static_cast<QGCUpdateTileDownloadStateTask*>(mtask);
    QSqlQuery query(*_db);
    QString s;
    if(task->state() == QGCTile::StateComplete) {
        s = QString("DELETE FROM TilesDownload WHERE setID = %1 AND hash = \"%2\"").arg(task->setID()).arg(task->hash());
    } else {
        if(task->hash() == "*") {
557
            s = QString("UPDATE TilesDownload SET state = %1 WHERE setID = %2").arg(static_cast<int>(task->state())).arg(task->setID());
dogmaphobic's avatar
dogmaphobic committed
558
        } else {
559
            s = QString("UPDATE TilesDownload SET state = %1 WHERE setID = %2 AND hash = \"%3\"").arg(static_cast<int>(task->state())).arg(task->setID()).arg(task->hash());
dogmaphobic's avatar
dogmaphobic committed
560 561 562 563 564 565 566 567 568 569 570
        }
    }
    if(!query.exec(s)) {
        qWarning() << "QGCCacheWorker::_updateTileDownloadState() Error:" << query.lastError().text();
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_pruneCache(QGCMapTask* mtask)
{
571
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
572 573 574 575 576
        return;
    }
    QGCPruneCacheTask* task = static_cast<QGCPruneCacheTask*>(mtask);
    QSqlQuery query(*_db);
    QString s;
dogmaphobic's avatar
dogmaphobic committed
577 578
    //-- Select tiles in default set only, sorted by oldest.
    s = QString("SELECT tileID, size, hash FROM Tiles WHERE tileID IN (SELECT A.tileID FROM SetTiles A join SetTiles B on A.tileID = B.tileID WHERE B.setID = %1 GROUP by A.tileID HAVING COUNT(A.tileID) = 1) ORDER BY DATE ASC LIMIT 128").arg(_getDefaultTileSet());
dogmaphobic's avatar
dogmaphobic committed
579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600
    qint64 amount = (qint64)task->amount();
    QList<quint64> tlist;
    if(query.exec(s)) {
        while(query.next() && amount >= 0) {
            tlist << query.value(0).toULongLong();
            amount -= query.value(1).toULongLong();
            qCDebug(QGCTileCacheLog) << "_pruneCache() HASH:" << query.value(2).toString();
        }
        while(tlist.count()) {
            s = QString("DELETE FROM Tiles WHERE tileID = %1").arg(tlist[0]);
            tlist.removeFirst();
            if(!query.exec(s))
                break;
        }
        task->setPruned();
    }
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_deleteTileSet(QGCMapTask* mtask)
{
601
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
602 603 604
        return;
    }
    QGCDeleteTileSetTask* task = static_cast<QGCDeleteTileSetTask*>(mtask);
605 606 607 608 609 610 611 612
    _deleteTileSet(task->setID());
    task->setTileSetDeleted();
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_deleteTileSet(qulonglong id)
{
dogmaphobic's avatar
dogmaphobic committed
613 614
    QSqlQuery query(*_db);
    QString s;
dogmaphobic's avatar
dogmaphobic committed
615
    //-- Only delete tiles unique to this set
616
    s = QString("DELETE FROM Tiles WHERE tileID IN (SELECT A.tileID FROM SetTiles A JOIN SetTiles B ON A.tileID = B.tileID WHERE B.setID = %1 GROUP BY A.tileID HAVING COUNT(A.tileID) = 1)").arg(id);
dogmaphobic's avatar
dogmaphobic committed
617
    query.exec(s);
618
    s = QString("DELETE FROM TilesDownload WHERE setID = %1").arg(id);
dogmaphobic's avatar
dogmaphobic committed
619
    query.exec(s);
620
    s = QString("DELETE FROM TileSets WHERE setID = %1").arg(id);
dogmaphobic's avatar
dogmaphobic committed
621
    query.exec(s);
622
    s = QString("DELETE FROM SetTiles WHERE setID = %1").arg(id);
dogmaphobic's avatar
dogmaphobic committed
623 624 625
    query.exec(s);
    _updateTotals();
}
626

dogmaphobic's avatar
dogmaphobic committed
627
//-----------------------------------------------------------------------------
Gus Grubba's avatar
Gus Grubba committed
628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643
void
QGCCacheWorker::_renameTileSet(QGCMapTask* mtask)
{
    if(!_testTask(mtask)) {
        return;
    }
    QGCRenameTileSetTask* task = static_cast<QGCRenameTileSetTask*>(mtask);
    QSqlQuery query(*_db);
    QString s;
    s = QString("UPDATE TileSets SET name = \"%1\" WHERE setID = %2").arg(task->newName()).arg(task->setID());
    if(!query.exec(s)) {
        task->setError("Error renaming tile set");
    }
}

//-----------------------------------------------------------------------------
dogmaphobic's avatar
dogmaphobic committed
644 645 646
void
QGCCacheWorker::_resetCacheDatabase(QGCMapTask* mtask)
{
647
    if(!_testTask(mtask)) {
dogmaphobic's avatar
dogmaphobic committed
648 649 650 651 652 653 654 655 656 657 658 659 660
        return;
    }
    QGCResetTask* task = static_cast<QGCResetTask*>(mtask);
    QSqlQuery query(*_db);
    QString s;
    s = QString("DROP TABLE Tiles");
    query.exec(s);
    s = QString("DROP TABLE TileSets");
    query.exec(s);
    s = QString("DROP TABLE SetTiles");
    query.exec(s);
    s = QString("DROP TABLE TilesDownload");
    query.exec(s);
661
    _valid = _createDB(_db);
dogmaphobic's avatar
dogmaphobic committed
662 663 664
    task->setResetCompleted();
}

Gus Grubba's avatar
Gus Grubba committed
665 666 667 668 669 670 671 672
//-----------------------------------------------------------------------------
void
QGCCacheWorker::_importSets(QGCMapTask* mtask)
{
    if(!_testTask(mtask)) {
        return;
    }
    QGCImportTileTask* task = static_cast<QGCImportTileTask*>(mtask);
Gus Grubba's avatar
Gus Grubba committed
673 674 675 676 677
    //-- If replacing, simply copy over it
    if(task->replace()) {
        //-- Close and delete old database
        if(_db) {
            delete _db;
678
            _db = nullptr;
Gus Grubba's avatar
Gus Grubba committed
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
            QSqlDatabase::removeDatabase(kSession);
        }
        QFile file(_databasePath);
        file.remove();
        //-- Copy given database
        QFile::copy(task->path(), _databasePath);
        task->setProgress(25);
        _init();
        if(_valid) {
            task->setProgress(50);
            _db = new QSqlDatabase(QSqlDatabase::addDatabase("QSQLITE", kSession));
            _db->setDatabaseName(_databasePath);
            _db->setConnectOptions("QSQLITE_ENABLE_SHARED_CACHE");
            _valid = _db->open();
        }
        task->setProgress(100);
    } else {
        //-- Open imported set
        QSqlDatabase* dbImport = new QSqlDatabase(QSqlDatabase::addDatabase("QSQLITE", kExportSession));
        dbImport->setDatabaseName(task->path());
        dbImport->setConnectOptions("QSQLITE_ENABLE_SHARED_CACHE");
        if (dbImport->open()) {
            QSqlQuery query(*dbImport);
            //-- Prepare progress report
            quint64 tileCount = 0;
            quint64 currentCount = 0;
705
            int lastProgress = -1;
Gus Grubba's avatar
Gus Grubba committed
706 707 708 709
            QString s;
            s = QString("SELECT COUNT(tileID) FROM Tiles");
            if(query.exec(s)) {
                if(query.next()) {
710
                    //-- Total number of tiles in imported database
Gus Grubba's avatar
Gus Grubba committed
711 712 713
                    tileCount  = query.value(0).toULongLong();
                }
            }
714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744
            if(tileCount) {
                //-- Iterate Tile Sets
                s = QString("SELECT * FROM TileSets ORDER BY defaultSet DESC, name ASC");
                if(query.exec(s)) {
                    while(query.next()) {
                        QString name            = query.value("name").toString();
                        quint64 setID           = query.value("setID").toULongLong();
                        QString mapType         = query.value("typeStr").toString();
                        double  topleftLat      = query.value("topleftLat").toDouble();
                        double  topleftLon      = query.value("topleftLon").toDouble();
                        double  bottomRightLat  = query.value("bottomRightLat").toDouble();
                        double  bottomRightLon  = query.value("bottomRightLon").toDouble();
                        int     minZoom         = query.value("minZoom").toInt();
                        int     maxZoom         = query.value("maxZoom").toInt();
                        int     type            = query.value("type").toInt();
                        quint32 numTiles        = query.value("numTiles").toUInt();
                        int     defaultSet      = query.value("defaultSet").toInt();
                        quint64 insertSetID     = _getDefaultTileSet();
                        //-- If not default set, create new one
                        if(!defaultSet) {
                            //-- Check if we have this tile set already
                            if(_findTileSetID(name, insertSetID)) {
                                int testCount = 0;
                                //-- Set with this name already exists. Make name unique.
                                while (true) {
                                    QString testName;
                                    testName.sprintf("%s %02d", name.toLatin1().data(), ++testCount);
                                    if(!_findTileSetID(testName, insertSetID) || testCount > 99) {
                                        name = testName;
                                        break;
                                    }
Gus Grubba's avatar
Gus Grubba committed
745 746
                                }
                            }
747 748 749 750 751 752 753 754 755 756 757 758 759
                            //-- Create new set
                            QSqlQuery cQuery(*_db);
                            cQuery.prepare("INSERT INTO TileSets("
                                "name, typeStr, topleftLat, topleftLon, bottomRightLat, bottomRightLon, minZoom, maxZoom, type, numTiles, defaultSet, date"
                                ") VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
                            cQuery.addBindValue(name);
                            cQuery.addBindValue(mapType);
                            cQuery.addBindValue(topleftLat);
                            cQuery.addBindValue(topleftLon);
                            cQuery.addBindValue(bottomRightLat);
                            cQuery.addBindValue(bottomRightLon);
                            cQuery.addBindValue(minZoom);
                            cQuery.addBindValue(maxZoom);
Gus Grubba's avatar
Gus Grubba committed
760
                            cQuery.addBindValue(type);
761 762
                            cQuery.addBindValue(numTiles);
                            cQuery.addBindValue(defaultSet);
Gus Grubba's avatar
Gus Grubba committed
763
                            cQuery.addBindValue(QDateTime::currentDateTime().toTime_t());
764 765 766 767 768 769
                            if(!cQuery.exec()) {
                                task->setError("Error adding imported tile set to database");
                                break;
                            } else {
                                //-- Get just created (auto-incremented) setID
                                insertSetID = cQuery.lastInsertId().toULongLong();
Gus Grubba's avatar
Gus Grubba committed
770 771
                            }
                        }
772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
                        //-- Find set tiles
                        QSqlQuery cQuery(*_db);
                        QSqlQuery subQuery(*dbImport);
                        QString sb = QString("SELECT * FROM Tiles WHERE tileID IN (SELECT A.tileID FROM SetTiles A JOIN SetTiles B ON A.tileID = B.tileID WHERE B.setID = %1 GROUP BY A.tileID HAVING COUNT(A.tileID) = 1)").arg(setID);
                        if(subQuery.exec(sb)) {
                            quint64 tilesFound = 0;
                            quint64 tilesSaved = 0;
                            _db->transaction();
                            while(subQuery.next()) {
                                tilesFound++;
                                QString hash    = subQuery.value("hash").toString();
                                QString format  = subQuery.value("format").toString();
                                QByteArray img  = subQuery.value("tile").toByteArray();
                                int type        = subQuery.value("type").toInt();
                                //-- Save tile
                                cQuery.prepare("INSERT INTO Tiles(hash, format, tile, size, type, date) VALUES(?, ?, ?, ?, ?, ?)");
                                cQuery.addBindValue(hash);
                                cQuery.addBindValue(format);
                                cQuery.addBindValue(img);
                                cQuery.addBindValue(img.size());
                                cQuery.addBindValue(type);
                                cQuery.addBindValue(QDateTime::currentDateTime().toTime_t());
                                if(cQuery.exec()) {
                                    tilesSaved++;
                                    quint64 importTileID = cQuery.lastInsertId().toULongLong();
                                    QString s = QString("INSERT INTO SetTiles(tileID, setID) VALUES(%1, %2)").arg(importTileID).arg(insertSetID);
                                    cQuery.prepare(s);
                                    cQuery.exec();
                                    currentCount++;
                                    if(tileCount) {
                                        int progress = (int)((double)currentCount / (double)tileCount * 100.0);
                                        //-- Avoid calling this if (int) progress hasn't changed.
                                        if(lastProgress != progress) {
                                            lastProgress = progress;
                                            task->setProgress(progress);
                                        }
                                    }
                                }
                            }
                            _db->commit();
                            if(tilesSaved) {
                                //-- Update tile count (if any added)
                                s = QString("SELECT COUNT(size) FROM Tiles A INNER JOIN SetTiles B on A.tileID = B.tileID WHERE B.setID = %1").arg(insertSetID);
                                if(cQuery.exec(s)) {
                                    if(cQuery.next()) {
                                        quint64 count  = cQuery.value(0).toULongLong();
                                        s = QString("UPDATE TileSets SET numTiles = %1 WHERE setID = %2").arg(count).arg(insertSetID);
                                        cQuery.exec(s);
                                    }
                                }
                            }
                            qint64 uniqueTiles = tilesFound - tilesSaved;
                            if((quint64)uniqueTiles < tileCount) {
                                tileCount -= uniqueTiles;
                            } else {
                                tileCount = 0;
                            }
                            //-- If there was nothing new in this set, remove it.
                            if(!tilesSaved && !defaultSet) {
                                qCDebug(QGCTileCacheLog) << "No unique tiles in" << name << "Removing it.";
                                _deleteTileSet(insertSetID);
Gus Grubba's avatar
Gus Grubba committed
833 834 835
                            }
                        }
                    }
836 837
                } else {
                    task->setError("No tile set in database");
Gus Grubba's avatar
Gus Grubba committed
838 839 840 841
                }
            }
            delete dbImport;
            QSqlDatabase::removeDatabase(kExportSession);
842 843 844
            if(!tileCount) {
                task->setError("No unique tiles in imported database");
            }
Gus Grubba's avatar
Gus Grubba committed
845 846 847 848
        } else {
            task->setError("Error opening import database");
        }
    }
Gus Grubba's avatar
Gus Grubba committed
849 850 851
    task->setImportCompleted();
}

852 853 854 855 856 857 858 859
//-----------------------------------------------------------------------------
void
QGCCacheWorker::_exportSets(QGCMapTask* mtask)
{
    if(!_testTask(mtask)) {
        return;
    }
    QGCExportTileTask* task = static_cast<QGCExportTileTask*>(mtask);
Gus Grubba's avatar
Gus Grubba committed
860 861 862
    //-- Delete target if it exists
    QFile file(task->path());
    file.remove();
863 864 865 866 867 868
    //-- Create exported database
    QSqlDatabase *dbExport = new QSqlDatabase(QSqlDatabase::addDatabase("QSQLITE", kExportSession));
    dbExport->setDatabaseName(task->path());
    dbExport->setConnectOptions("QSQLITE_ENABLE_SHARED_CACHE");
    if (dbExport->open()) {
        if(_createDB(dbExport, false)) {
Gus Grubba's avatar
Gus Grubba committed
869 870 871 872 873 874 875 876 877 878 879 880 881 882 883
            //-- Prepare progress report
            quint64 tileCount = 0;
            quint64 currentCount = 0;
            for(int i = 0; i < task->sets().count(); i++) {
                QGCCachedTileSet* set = task->sets()[i];
                //-- Default set has no unique tiles
                if(set->defaultSet()) {
                    tileCount += set->totalTileCount();
                } else {
                    tileCount += set->uniqueTileCount();
                }
            }
            if(!tileCount) {
                tileCount = 1;
            }
884 885 886 887 888 889
            //-- Iterate sets to save
            for(int i = 0; i < task->sets().count(); i++) {
                QGCCachedTileSet* set = task->sets()[i];
                //-- Create Tile Exported Set
                QSqlQuery exportQuery(*dbExport);
                exportQuery.prepare("INSERT INTO TileSets("
Gus Grubba's avatar
Gus Grubba committed
890 891 892
                    "name, typeStr, topleftLat, topleftLon, bottomRightLat, bottomRightLon, minZoom, maxZoom, type, numTiles, defaultSet, date"
                    ") VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
                exportQuery.addBindValue(set->name());
893 894 895 896 897 898 899 900 901
                exportQuery.addBindValue(set->mapTypeStr());
                exportQuery.addBindValue(set->topleftLat());
                exportQuery.addBindValue(set->topleftLon());
                exportQuery.addBindValue(set->bottomRightLat());
                exportQuery.addBindValue(set->bottomRightLon());
                exportQuery.addBindValue(set->minZoom());
                exportQuery.addBindValue(set->maxZoom());
                exportQuery.addBindValue(set->type());
                exportQuery.addBindValue(set->totalTileCount());
Gus Grubba's avatar
Gus Grubba committed
902
                exportQuery.addBindValue(set->defaultSet());
903 904 905 906 907 908 909 910 911 912 913
                exportQuery.addBindValue(QDateTime::currentDateTime().toTime_t());
                if(!exportQuery.exec()) {
                    task->setError("Error adding tile set to exported database");
                    break;
                } else {
                    //-- Get just created (auto-incremented) setID
                    quint64 exportSetID = exportQuery.lastInsertId().toULongLong();
                    //-- Find set tiles
                    QString s = QString("SELECT * FROM SetTiles WHERE setID = %1").arg(set->id());
                    QSqlQuery query(*_db);
                    if(query.exec(s)) {
Gus Grubba's avatar
Gus Grubba committed
914
                        dbExport->transaction();
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938
                        while(query.next()) {
                            quint64 tileID = query.value("tileID").toULongLong();
                            //-- Get tile
                            QString s = QString("SELECT * FROM Tiles WHERE tileID = \"%1\"").arg(tileID);
                            QSqlQuery subQuery(*_db);
                            if(subQuery.exec(s)) {
                                if(subQuery.next()) {
                                    QString hash    = subQuery.value("hash").toString();
                                    QString format  = subQuery.value("format").toString();
                                    QByteArray img  = subQuery.value("tile").toByteArray();
                                    int type        = subQuery.value("type").toInt();
                                    //-- Save tile
                                    exportQuery.prepare("INSERT INTO Tiles(hash, format, tile, size, type, date) VALUES(?, ?, ?, ?, ?, ?)");
                                    exportQuery.addBindValue(hash);
                                    exportQuery.addBindValue(format);
                                    exportQuery.addBindValue(img);
                                    exportQuery.addBindValue(img.size());
                                    exportQuery.addBindValue(type);
                                    exportQuery.addBindValue(QDateTime::currentDateTime().toTime_t());
                                    if(exportQuery.exec()) {
                                        quint64 exportTileID = exportQuery.lastInsertId().toULongLong();
                                        QString s = QString("INSERT INTO SetTiles(tileID, setID) VALUES(%1, %2)").arg(exportTileID).arg(exportSetID);
                                        exportQuery.prepare(s);
                                        exportQuery.exec();
Gus Grubba's avatar
Gus Grubba committed
939 940
                                        currentCount++;
                                        task->setProgress((int)((double)currentCount / (double)tileCount * 100.0));
941 942 943 944 945
                                    }
                                }
                            }
                        }
                    }
Gus Grubba's avatar
Gus Grubba committed
946
                    dbExport->commit();
947 948 949 950 951 952 953 954 955 956
                }
            }
        } else {
            task->setError("Error creating export database");
        }
    } else {
        qCritical() << "Map Cache SQL error (create export database):" << dbExport->lastError();
        task->setError("Error opening export database");
    }
    delete dbExport;
Gus Grubba's avatar
Gus Grubba committed
957
    QSqlDatabase::removeDatabase(kExportSession);
Gus Grubba's avatar
Gus Grubba committed
958
    task->setExportCompleted();
959 960 961 962 963 964 965 966 967 968 969 970
}

//-----------------------------------------------------------------------------
bool QGCCacheWorker::_testTask(QGCMapTask* mtask)
{
    if(!_valid) {
        mtask->setError("No Cache Database");
        return false;
    }
    return true;
}

dogmaphobic's avatar
dogmaphobic committed
971 972 973 974 975 976 977 978 979 980 981 982
//-----------------------------------------------------------------------------
bool
QGCCacheWorker::_init()
{
    _failed = false;
    if(!_databasePath.isEmpty()) {
        qCDebug(QGCTileCacheLog) << "Mapping cache directory:" << _databasePath;
        //-- Initialize Database
        _db = new QSqlDatabase(QSqlDatabase::addDatabase("QSQLITE", kSession));
        _db->setDatabaseName(_databasePath);
        _db->setConnectOptions("QSQLITE_ENABLE_SHARED_CACHE");
        if (_db->open()) {
983 984 985 986
            _valid = _createDB(_db);
            if(!_valid) {
                _failed = true;
            }
dogmaphobic's avatar
dogmaphobic committed
987 988 989 990 991
        } else {
            qCritical() << "Map Cache SQL error (init() open db):" << _db->lastError();
            _failed = true;
        }
        delete _db;
992
        _db = nullptr;
dogmaphobic's avatar
dogmaphobic committed
993 994 995 996 997
        QSqlDatabase::removeDatabase(kSession);
    } else {
        qCritical() << "Could not find suitable cache directory.";
        _failed = true;
    }
998
    _testInternet();
dogmaphobic's avatar
dogmaphobic committed
999 1000 1001 1002
    return _failed;
}

//-----------------------------------------------------------------------------
1003 1004
bool
QGCCacheWorker::_createDB(QSqlDatabase* db, bool createDefault)
dogmaphobic's avatar
dogmaphobic committed
1005
{
1006 1007
    bool res = false;
    QSqlQuery query(*db);
dogmaphobic's avatar
dogmaphobic committed
1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057
    if(!query.exec(
        "CREATE TABLE IF NOT EXISTS Tiles ("
        "tileID INTEGER PRIMARY KEY NOT NULL, "
        "hash TEXT NOT NULL UNIQUE, "
        "format TEXT NOT NULL, "
        "tile BLOB NULL, "
        "size INTEGER, "
        "type INTEGER, "
        "date INTEGER DEFAULT 0)"))
    {
        qWarning() << "Map Cache SQL error (create Tiles db):" << query.lastError().text();
    } else {
        if(!query.exec(
            "CREATE TABLE IF NOT EXISTS TileSets ("
            "setID INTEGER PRIMARY KEY NOT NULL, "
            "name TEXT NOT NULL UNIQUE, "
            "typeStr TEXT, "
            "topleftLat REAL DEFAULT 0.0, "
            "topleftLon REAL DEFAULT 0.0, "
            "bottomRightLat REAL DEFAULT 0.0, "
            "bottomRightLon REAL DEFAULT 0.0, "
            "minZoom INTEGER DEFAULT 3, "
            "maxZoom INTEGER DEFAULT 3, "
            "type INTEGER DEFAULT -1, "
            "numTiles INTEGER DEFAULT 0, "
            "defaultSet INTEGER DEFAULT 0, "
            "date INTEGER DEFAULT 0)"))
        {
            qWarning() << "Map Cache SQL error (create TileSets db):" << query.lastError().text();
        } else {
            if(!query.exec(
                "CREATE TABLE IF NOT EXISTS SetTiles ("
                "setID INTEGER, "
                "tileID INTEGER)"))
            {
                qWarning() << "Map Cache SQL error (create SetTiles db):" << query.lastError().text();
            } else {
                if(!query.exec(
                    "CREATE TABLE IF NOT EXISTS TilesDownload ("
                    "setID INTEGER, "
                    "hash TEXT NOT NULL UNIQUE, "
                    "type INTEGER, "
                    "x INTEGER, "
                    "y INTEGER, "
                    "z INTEGER, "
                    "state INTEGER DEFAULT 0)"))
                {
                    qWarning() << "Map Cache SQL error (create TilesDownload db):" << query.lastError().text();
                } else {
                    //-- Database it ready for use
1058
                    res = true;
dogmaphobic's avatar
dogmaphobic committed
1059 1060 1061 1062 1063
                }
            }
        }
    }
    //-- Create default tile set
1064
    if(res && createDefault) {
dogmaphobic's avatar
dogmaphobic committed
1065 1066 1067
        QString s = QString("SELECT name FROM TileSets WHERE name = \"%1\"").arg(kDefaultSet);
        if(query.exec(s)) {
            if(!query.next()) {
dogmaphobic's avatar
dogmaphobic committed
1068
                query.prepare("INSERT INTO TileSets(name, defaultSet, date) VALUES(?, ?, ?)");
dogmaphobic's avatar
dogmaphobic committed
1069 1070 1071 1072
                query.addBindValue(kDefaultSet);
                query.addBindValue(1);
                query.addBindValue(QDateTime::currentDateTime().toTime_t());
                if(!query.exec()) {
1073 1074
                    qWarning() << "Map Cache SQL error (Creating default tile set):" << db->lastError();
                    res = false;
dogmaphobic's avatar
dogmaphobic committed
1075 1076 1077
                }
            }
        } else {
1078
            qWarning() << "Map Cache SQL error (Looking for default tile set):" << db->lastError();
dogmaphobic's avatar
dogmaphobic committed
1079 1080
        }
    }
1081
    if(!res) {
dogmaphobic's avatar
dogmaphobic committed
1082 1083 1084
        QFile file(_databasePath);
        file.remove();
    }
1085
    return res;
dogmaphobic's avatar
dogmaphobic committed
1086
}
1087 1088 1089 1090 1091

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_testInternet()
{
Gus Grubba's avatar
Gus Grubba committed
1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112
    /*
        To test if you have Internet connection, the code tests a connection to
        8.8.8.8:53 (google DNS). It appears that some routers are now blocking TCP
        connections to port 53. So instead, we use a TCP connection to "github.com"
        (80). On exit, if the look up for “github.com” is under way, a call to abort
        the lookup is made. This abort call on Android has no effect, and the code
        blocks for a full minute. So to work around the issue, we continue a direct
        TCP connection to 8.8.8.8:53 on Android and do the lookup/connect on the
        other platforms.
    */
#if defined(__android__)
    QTcpSocket socket;
    socket.connectToHost("8.8.8.8", 53);
    if (socket.waitForConnected(2000)) {
        qCDebug(QGCTileCacheLog) << "Yes Internet Access";
        emit internetStatus(true);
        return;
    }
    qWarning() << "No Internet Access";
    emit internetStatus(false);
#else
1113 1114 1115
    if(!_hostLookupID) {
        _hostLookupID = QHostInfo::lookupHost("www.github.com", this, SLOT(_lookupReady(QHostInfo)));
    }
Gus Grubba's avatar
Gus Grubba committed
1116
#endif
1117 1118 1119 1120 1121 1122
}

//-----------------------------------------------------------------------------
void
QGCCacheWorker::_lookupReady(QHostInfo info)
{
Gus Grubba's avatar
Gus Grubba committed
1123 1124 1125
#if defined(__android__)
    Q_UNUSED(info);
#else
1126 1127 1128
    _hostLookupID = 0;
    if(info.error() == QHostInfo::NoError && info.addresses().size()) {
        QTcpSocket socket;
1129 1130 1131
        QNetworkProxy tempProxy;
        tempProxy.setType(QNetworkProxy::DefaultProxy);
        socket.setProxy(tempProxy);
1132 1133 1134 1135 1136 1137
        socket.connectToHost(info.addresses().first(), 80);
        if (socket.waitForConnected(2000)) {
            qCDebug(QGCTileCacheLog) << "Yes Internet Access";
            emit internetStatus(true);
            return;
        }
1138 1139 1140
    }
    qWarning() << "No Internet Access";
    emit internetStatus(false);
Gus Grubba's avatar
Gus Grubba committed
1141
#endif
1142
}