* @brief Processes a batch of CSV frames, creating the file if needed. */
| 86 | * @brief Processes a batch of CSV frames, creating the file if needed. |
| 87 | */ |
| 88 | void CSV::ExportWorker::processItems(const std::vector<DataModel::TimestampedFramePtr>& items) |
| 89 | { |
| 90 | if (items.empty()) |
| 91 | return; |
| 92 | |
| 93 | if (!m_csvFile.isOpen()) { |
| 94 | if (!m_templateFrame.groups.empty()) |
| 95 | createCsvFile(m_templateFrame); |
| 96 | else |
| 97 | createCsvFile((*items.begin())->data); |
| 98 | |
| 99 | if (m_schema.columns.empty()) |
| 100 | return; |
| 101 | |
| 102 | m_referenceTimestamp = (*items.begin())->timestamp; |
| 103 | resetMonotonicClock(); |
| 104 | } |
| 105 | |
| 106 | const int colCount = static_cast<int>(m_schema.columns.size()); |
| 107 | |
| 108 | for (const auto& i : items) { |
| 109 | const qint64 nanoseconds = monotonicFrameNs(i->timestamp, m_referenceTimestamp); |
| 110 | const double seconds = static_cast<double>(nanoseconds) / 1'000'000'000.0; |
| 111 | m_textStream << QString::number(seconds, 'f', 9); |
| 112 | |
| 113 | for (const auto& g : i->data.groups) |
| 114 | for (const auto& d : g.datasets) |
| 115 | m_lastFinalValues[d.uniqueId] = d.value.simplified(); |
| 116 | |
| 117 | for (int j = 0; j < colCount; ++j) { |
| 118 | const int uid = m_schema.columns[static_cast<size_t>(j)].uniqueId; |
| 119 | m_textStream << ',' << escapeCsvField(m_lastFinalValues.value(uid, QString())); |
| 120 | } |
| 121 | |
| 122 | m_textStream << '\n'; |
| 123 | } |
| 124 | |
| 125 | m_textStream.flush(); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * @brief Creates a new CSV file and writes the header row from the frame schema. |