92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
/*
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* Copyright (C) 2023 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ScanStepComputeClusterStats.hpp"
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#include "core/ILogger.hpp"
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#include "database/IDb.hpp"
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#include "database/Session.hpp"
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#include "database/objects/Cluster.hpp"
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#include "ScanContext.hpp"
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namespace lms::scanner
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{
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bool ScanStepComputeClusterStats::needProcess(const ScanContext& context) const
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{
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return context.stats.getChangesCount() > 0;
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}
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void ScanStepComputeClusterStats::process(ScanContext& context)
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{
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using namespace db;
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Session& dbSession{ _db.getTLSSession() };
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const std::size_t clusterCount{ [&] {
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auto transaction{ dbSession.createReadTransaction() };
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return Cluster::getCount(dbSession);
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}() };
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context.currentStepStats.totalElems = clusterCount;
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foreachSubRange(Range{ 0, clusterCount }, 100, [&](Range range) {
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const std::vector<ClusterId> clusterIds{ [&] {
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Cluster::FindParameters params;
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params.setRange(range);
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{
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auto transaction{ dbSession.createReadTransaction() };
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return std::move(Cluster::findIds(dbSession, params).results);
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}
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}() };
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for (const ClusterId clusterId : clusterIds)
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{
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if (_abortScan)
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break;
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std::size_t trackCount;
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std::size_t releaseCount;
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{
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auto transaction{ dbSession.createReadTransaction() };
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trackCount = Cluster::computeTrackCount(dbSession, clusterId);
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releaseCount = Cluster::computeReleaseCount(dbSession, clusterId);
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}
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{
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auto transaction{ dbSession.createWriteTransaction() };
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auto cluster{ Cluster::find(dbSession, clusterId) };
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cluster.modify()->setTrackCount(trackCount);
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cluster.modify()->setReleaseCount(releaseCount);
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}
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context.currentStepStats.processedElems++;
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_progressCallback(context.currentStepStats);
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}
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return true;
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});
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LMS_LOG(DBUPDATER, DEBUG, "Recomputed stats for " << context.currentStepStats.processedElems << " clusters!");
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}
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} // namespace lms::scanner
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