nymea-experience-plugin-energy/plugin/energylogger.cpp

931 lines
43 KiB
C++

#include "energylogger.h"
#include <nymeasettings.h>
#include <QStandardPaths>
#include <QDir>
#include <QSqlQuery>
#include <QSqlError>
#include <QSqlRecord>
#include <QSettings>
#include <QLoggingCategory>
Q_DECLARE_LOGGING_CATEGORY(dcEnergyExperience)
EnergyLogger::EnergyLogger(QObject *parent) : EnergyLogs(parent)
{
if (!initDB()) {
qCCritical(dcEnergyExperience()) << "Unable to open energy log. Energy logs will not be available.";
return;
}
// Logging configuration
// Note: SampleRate1Min is always sampled as it is the base series for others
// Make sure your base series always has enough samples to build a full sample
// of all series building on it.
// Disk space considerations;
// Each entry takes approx 50 bytes for powerBalance + 60 bytes for thingCurrentPower per thing of disk space
// SQLite adds metadata and overhead of about 5%
// The resulting database size can be estimated with (count being the sum of all numbers below):
// (count * 50 bytes) + (count * things * 60 bytes) + 5%
// 10000 entries, with 5 energy things => ~4MB
// Note: use sqlite3_analyzer to see the approx. size per entry in each table.
// One day 1440 min, let's keep one week
m_maxMinuteSamples = 10080;
addConfig(SampleRate15Mins, SampleRate1Min, 2688); // 4 weeks
addConfig(SampleRate1Hour, SampleRate15Mins, 672); // 4 weeks
addConfig(SampleRate3Hours, SampleRate15Mins, 224); // 4 weeks
addConfig(SampleRate1Day, SampleRate1Hour, 1095); // 3 years
addConfig(SampleRate1Week, SampleRate1Day, 168); // 3 years
addConfig(SampleRate1Month, SampleRate1Day, 240); // 20 years
addConfig(SampleRate1Year, SampleRate1Month, 20); // 20 years
// Load last values from thingsPower logs so we have at least one base sample available for sampling, even if a thing might not produce any logs for a while.
foreach (const ThingId &thingId, loggedThings()) {
m_thingsPowerLiveLogs[thingId].append(latestLogEntry(SampleRate1Min, thingId));
}
// Start the scheduling
scheduleNextSample(SampleRate1Min);
foreach (SampleRate sampleRate, m_configs.keys()) {
scheduleNextSample(sampleRate);
}
// Now all the data is initialized. We can start with sampling.
// First check if we missed any samplings (e.g. because the system was offline at the time when it should have created a sample)
QDateTime startTime = QDateTime::currentDateTime();
foreach(SampleRate sampleRate, m_configs.keys()) {
rectifySamples(sampleRate, m_configs.value(sampleRate).baseSampleRate);
}
qCInfo(dcEnergyExperience()) << "Resampled energy DB logs in" << startTime.msecsTo(QDateTime::currentDateTime()) << "ms.";
// And start the sampler timer
connect(&m_sampleTimer, &QTimer::timeout, this, &EnergyLogger::sample);
m_sampleTimer.start(1000);
}
void EnergyLogger::logPowerBalance(double consumption, double production, double acquisition, double storage, double totalConsumption, double totalProduction, double totalAcquisition, double totalReturn)
{
PowerBalanceLogEntry entry(QDateTime::currentDateTime(), consumption, production, acquisition, storage, totalConsumption, totalProduction, totalAcquisition, totalReturn);
// Add everything to livelog, keep that for one day, in memory only
m_balanceLiveLog.prepend(entry);
while (m_balanceLiveLog.count() > 1 && m_balanceLiveLog.last().timestamp().addDays(1) < QDateTime::currentDateTime()) {
qCDebug(dcEnergyExperience) << "Discarding livelog entry from" << m_balanceLiveLog.last().timestamp().toString();
m_balanceLiveLog.removeLast();
}
}
void EnergyLogger::logThingPower(const ThingId &thingId, double currentPower, double totalConsumption, double totalProduction)
{
ThingPowerLogEntry entry(QDateTime::currentDateTime(), thingId, currentPower, totalConsumption, totalProduction);
m_thingsPowerLiveLogs[thingId].prepend(entry);
while (m_thingsPowerLiveLogs[thingId].count() > 1 && m_thingsPowerLiveLogs[thingId].last().timestamp().addDays(1) < QDateTime::currentDateTime()) {
qCDebug(dcEnergyExperience()) << "Discarding thing power livelog entry for thing" << thingId << "from" << m_thingsPowerLiveLogs[thingId].last().timestamp().toString();
m_thingsPowerLiveLogs[thingId].removeLast();
}
}
PowerBalanceLogEntries EnergyLogger::powerBalanceLogs(SampleRate sampleRate, const QDateTime &from, const QDateTime &to) const
{
PowerBalanceLogEntries result;
QSqlQuery query(m_db);
QString queryString = "SELECT * FROM powerBalance WHERE sampleRate = ?";
QVariantList bindValues;
bindValues << sampleRate;
qCDebug(dcEnergyExperience()) << "Fetching logs. Timestamp:" << from << from.isNull();
if (!from.isNull()) {
queryString += " AND timestamp >= ?";
bindValues << from.toMSecsSinceEpoch();
}
if (!to.isNull()) {
queryString += " AND timestamp <= ?";
bindValues << to.toMSecsSinceEpoch();
}
query.prepare(queryString);
foreach (const QVariant &bindValue, bindValues) {
query.addBindValue(bindValue);
}
qCDebug(dcEnergyExperience()) << "Executing" << queryString << bindValues;
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching power balance logs:" << query.lastError() << query.executedQuery();
return result;
}
while (query.next()) {
// qCDebug(dcEnergyExperience()) << "Adding result";
result.append(queryResultToBalanceLogEntry(query.record()));
}
return result;
}
ThingPowerLogEntries EnergyLogger::thingPowerLogs(SampleRate sampleRate, const QList<ThingId> &thingIds, const QDateTime &from, const QDateTime &to) const
{
ThingPowerLogEntries result;
QSqlQuery query(m_db);
QString queryString = "SELECT * FROM thingPower WHERE sampleRate = ?";
QVariantList bindValues;
bindValues << sampleRate;
qCDebug(dcEnergyExperience()) << "Fetching thing power logs for" << thingIds;
QStringList thingsQuery;
foreach (const ThingId &thingId, thingIds) {
thingsQuery.append("thingId = ?");
bindValues << thingId;
}
if (!thingsQuery.isEmpty()) {
queryString += " AND (" + thingsQuery.join(" OR ") + " )";
}
if (!from.isNull()) {
queryString += " AND timestamp >= ?";
bindValues << from.toMSecsSinceEpoch();
}
if (!to.isNull()) {
queryString += " AND timestamp <= ?";
bindValues << to.toMSecsSinceEpoch();
}
query.prepare(queryString);
foreach (const QVariant &bindValue, bindValues) {
query.addBindValue(bindValue);
}
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching power balance logs:" << query.lastError() << query.executedQuery();
return result;
}
while (query.next()) {
result.append(ThingPowerLogEntry(
QDateTime::fromMSecsSinceEpoch(query.value("timestamp").toLongLong()),
query.value("thingId").toUuid(),
query.value("currentPower").toDouble(),
query.value("totalConsumption").toDouble(),
query.value("totalProduction").toDouble()));
}
return result;
}
PowerBalanceLogEntry EnergyLogger::latestLogEntry(SampleRate sampleRate)
{
if (sampleRate == SampleRateAny) {
if (m_balanceLiveLog.count() > 0) {
return m_balanceLiveLog.first();
}
}
QSqlQuery query(m_db);
QString queryString = "SELECT MAX(timestamp), consumption, production, acquisition, storage, totalConsumption, totalProduction, totalAcquisition, totalReturn FROM powerBalance";
QVariantList bindValues;
if (sampleRate != SampleRateAny) {
queryString += " WHERE sampleRate = ?";
bindValues.append(sampleRate);
}
queryString += ";";
query.prepare(queryString);
foreach (const QVariant &value, bindValues) {
query.addBindValue(value);
}
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error obtaining latest log entry from DB:" << query.lastError() << query.executedQuery();
return PowerBalanceLogEntry();
}
if (!query.next()) {
qCDebug(dcEnergyExperience()) << "No power balance log entry in DB for sample rate:" << sampleRate;
return PowerBalanceLogEntry();
}
return queryResultToBalanceLogEntry(query.record());
}
ThingPowerLogEntry EnergyLogger::latestLogEntry(SampleRate sampleRate, const ThingId &thingId)
{
if (sampleRate == SampleRateAny) {
if (m_thingsPowerLiveLogs.value(thingId).count() > 0) {
return m_thingsPowerLiveLogs.value(thingId).first();
}
}
QSqlQuery query(m_db);
query.prepare("SELECT MAX(timestamp), currentPower, totalConsumption, totalProduction from thingPower WHERE sampleRate = ? AND thingId = ?;");
query.addBindValue(sampleRate);
query.addBindValue(thingId);
if (!query.exec()) {
qCWarning(dcEnergyExperience()) << "Error fetching latest thing log entry from DB:" << query.lastError() << query.executedQuery();
return ThingPowerLogEntry();
}
if (!query.next()) {
qCDebug(dcEnergyExperience()) << "No thing power log entry in DB for sample rate:" << sampleRate;
return ThingPowerLogEntry();
}
return queryResultToThingPowerLogEntry(query.record());
}
void EnergyLogger::removeThingLogs(const ThingId &thingId)
{
m_thingsPowerLiveLogs.remove(thingId);
QSqlQuery query(m_db);
query.prepare("DELETE FROM thingPower WHERE thingId = ?;");
query.addBindValue(thingId);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error removing thing energy logs for thing id" << thingId << query.lastError() << query.executedQuery();
}
}
QList<ThingId> EnergyLogger::loggedThings() const
{
QList<ThingId> ret;
QSqlQuery query(m_db);
query.prepare("SELECT DISTINCT thingId FROM thingPower;");
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Failed to load existing things from logs:" << query.lastError();
} else {
while (query.next()) {
ret.append(query.value("thingId").toUuid());
}
}
return ret;
}
void EnergyLogger::cacheThingEntry(const ThingId &thingId, double totalEnergyConsumed, double totalEnergyProduced)
{
QSqlQuery query(m_db);
query.prepare("INSERT OR REPLACE INTO thingCache (thingId, totalEnergyConsumed, totalEnergyProduced) VALUES (?, ?, ?);");
query.addBindValue(thingId);
query.addBindValue(totalEnergyConsumed);
query.addBindValue(totalEnergyProduced);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Failed to store thing cache entry:" << query.lastError() << query.executedQuery();
}
}
ThingPowerLogEntry EnergyLogger::cachedThingEntry(const ThingId &thingId)
{
QSqlQuery query(m_db);
query.prepare("SELECT * FROM thingCache WHERE thingId = ?;");
query.addBindValue(thingId);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Failed to retrieve thing cache entry:" << query.lastError() << query.executedQuery();
return ThingPowerLogEntry();
}
if (!query.next()) {
qCDebug(dcEnergyExperience()) << "No cached thing entry for" << thingId;
return ThingPowerLogEntry();
}
return ThingPowerLogEntry(QDateTime(), thingId, 0, query.value("totalEnergyConsumed").toDouble(), query.value("totalEnergyProduced").toDouble());
}
void EnergyLogger::sample()
{
QDateTime now = QDateTime::currentDateTime();
if (now >= m_nextSamples.value(SampleRate1Min)) {
QDateTime sampleEnd = m_nextSamples.value(SampleRate1Min);
QDateTime sampleStart = sampleEnd.addMSecs(-60 * 1000);
qCDebug(dcEnergyExperience()) << "Sampling power balance for 1 min" << sampleEnd.toString();
double medianConsumption = 0;
double medianProduction = 0;
double medianAcquisition = 0;
double medianStorage = 0;
for (int i = 0; i < m_balanceLiveLog.count(); i++) {
const PowerBalanceLogEntry &entry = m_balanceLiveLog.at(i);
QDateTime frameStart = (entry.timestamp() < sampleStart) ? sampleStart : entry.timestamp();
QDateTime frameEnd = i == 0 ? sampleEnd : m_balanceLiveLog.at(i-1).timestamp();
int frameDuration = frameStart.msecsTo(frameEnd);
qCDebug(dcEnergyExperience()) << "Frame" << i << "duration:" << frameDuration << "value:" << entry.consumption() << "start" << frameStart.toString() << "end" << frameEnd.toString();
medianConsumption += entry.consumption() * frameDuration;
medianProduction += entry.production() * frameDuration;
medianAcquisition += entry.acquisition() * frameDuration;
medianStorage += entry.storage() * frameDuration;
if (entry.timestamp() < sampleStart) {
break;
}
}
medianConsumption /= sampleStart.msecsTo(sampleEnd);
medianProduction /= sampleStart.msecsTo(sampleEnd);
medianAcquisition /= sampleStart.msecsTo(sampleEnd);
medianStorage /= sampleStart.msecsTo(sampleEnd);
PowerBalanceLogEntry newest = latestLogEntry(SampleRateAny);
double totalConsumption = newest.totalConsumption();
double totalProduction = newest.totalProduction();
double totalAcquisition = newest.totalAcquisition();
double totalReturn = newest.totalReturn();
qCDebug(dcEnergyExperience()) << "Sampled power balance:" << SampleRate1Min << "🔥:" << medianConsumption << "🌞:" << medianProduction << "💵:" << medianAcquisition << "🔋:" << medianStorage << "Totals:" << "🔥:" << totalConsumption << "🌞:" << totalProduction << "💵↓:" << totalAcquisition << "💵↑:" << totalReturn;
insertPowerBalance(sampleEnd, SampleRate1Min, medianConsumption, medianProduction, medianAcquisition, medianStorage, totalConsumption, totalProduction, totalAcquisition, totalReturn);
foreach (const ThingId &thingId, m_thingsPowerLiveLogs.keys()) {
double medianPower = 0;
qCDebug(dcEnergyExperience()) << "Sampling thing power for" << thingId.toString() << SampleRate1Min << sampleEnd.toString();
ThingPowerLogEntries entries = m_thingsPowerLiveLogs.value(thingId);
for (int i = 0; i < entries.count(); i++) {
const ThingPowerLogEntry &entry = entries.at(i);
QDateTime frameStart = (entry.timestamp() < sampleStart) ? sampleStart : entry.timestamp();
QDateTime frameEnd = i == 0 ? sampleEnd : entries.at(i-1).timestamp();
int frameDuration = frameStart.msecsTo(frameEnd);
qCDebug(dcEnergyExperience()) << "Frame" << i << "duration:" << frameDuration << "value:" << entry.currentPower();
medianPower += entry.currentPower() * frameDuration;
if (entry.timestamp() < sampleStart) {
break;
}
}
medianPower /= sampleStart.msecsTo(sampleEnd);
ThingPowerLogEntry newest = latestLogEntry(SampleRateAny, thingId);
double totalConsumption = newest.totalConsumption();
double totalProduction = newest.totalProduction();
qCDebug(dcEnergyExperience()) << "Sampled thing power for" << thingId << SampleRate1Min << "🔥/🌞:" << medianPower << "Totals:" << "🔥:" << totalConsumption << "🌞:" << totalProduction;
insertThingPower(sampleEnd, SampleRate1Min, thingId, medianPower, totalConsumption, totalProduction);
}
}
// First sample all the configs.
foreach (SampleRate sampleRate, m_configs.keys()) {
if (now >= m_nextSamples.value(sampleRate)) {
QDateTime sampleTime = m_nextSamples.value(sampleRate);
SampleRate baseSampleRate = m_configs.value(sampleRate).baseSampleRate;
samplePowerBalance(sampleRate, baseSampleRate, sampleTime);
sampleThingsPower(sampleRate, baseSampleRate, sampleTime);
}
}
// and then trim them
if (now > m_nextSamples.value(SampleRate1Min)) {
QDateTime sampleTime = m_nextSamples.value(SampleRate1Min);
QDateTime oldestTimestamp = sampleTime.addMSecs(-(qint64)m_maxMinuteSamples * 60 * 1000);
trimPowerBalance(SampleRate1Min, oldestTimestamp);
foreach (const ThingId &thingId, m_thingsPowerLiveLogs.keys()) {
trimThingPower(thingId, SampleRate1Min, oldestTimestamp);
}
}
foreach (SampleRate sampleRate, m_configs.keys()) {
if (now >= m_nextSamples.value(sampleRate)) {
uint maxSamples = m_configs.value(sampleRate).maxSamples;
QDateTime sampleTime = m_nextSamples.value(sampleRate);
QDateTime oldestTimestamp = calculateSampleStart(sampleTime, sampleRate, maxSamples);
trimPowerBalance(sampleRate, oldestTimestamp);
foreach (const ThingId &thingId, m_thingsPowerLiveLogs.keys()) {
trimThingPower(thingId, sampleRate, oldestTimestamp);
}
}
}
// Lastly we reschedule the next sample for each config
// Note: keep this at the end as the previous stuff uses the schedule to work
if (now > m_nextSamples.value(SampleRate1Min)) {
scheduleNextSample(SampleRate1Min);
}
foreach (SampleRate sampleRate, m_configs.keys()) {
if (now >= m_nextSamples.value(sampleRate)) {
scheduleNextSample(sampleRate);
}
}
}
bool EnergyLogger::initDB()
{
m_db.close();
m_db = QSqlDatabase::addDatabase("QSQLITE", "energylogs");
QDir path = QDir(NymeaSettings::storagePath());
if (!path.exists()) {
path.mkpath(path.path());
}
m_db.setDatabaseName(path.filePath("energylogs.sqlite"));
bool opened = m_db.open();
if (!opened) {
qCWarning(dcEnergyExperience()) << "Cannot open energy log DB at" << m_db.databaseName() << m_db.lastError();
return false;
}
if (!m_db.tables().contains("metadata")) {
qCDebug(dcEnergyExperience()) << "No \"metadata\" table in database. Creating it.";
m_db.exec("CREATE TABLE metadata (version INT);");
m_db.exec("INSERT INTO metadata (version) VALUES (1);");
if (m_db.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error creating metadata table in energy log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
}
}
if (!m_db.tables().contains("powerBalance")) {
qCDebug(dcEnergyExperience()) << "No \"powerBalance\" table in database. Creating it.";
m_db.exec("CREATE TABLE powerBalance "
"("
"timestamp BIGINT,"
"sampleRate INT,"
"consumption FLOAT,"
"production FLOAT,"
"acquisition FLOAT,"
"storage FLOAT,"
"totalConsumption FLOAT,"
"totalProduction FLOAT,"
"totalAcquisition FLOAT,"
"totalReturn FLOAT"
");");
if (m_db.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error creating powerBalance table in energy log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
}
}
if (!m_db.tables().contains("thingPower")) {
qCDebug(dcEnergyExperience()) << "No \"thingPower\" table in database. Creating it.";
m_db.exec("CREATE TABLE thingPower "
"("
"timestamp BIGINT,"
"sampleRate INT,"
"thingId VARCHAR(38),"
"currentPower FLOAT,"
"totalConsumption FLOAT,"
"totalProduction FLOAT"
");");
if (m_db.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error creating thingPower table in energy log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
}
}
if (!m_db.tables().contains("thingCache")) {
qCDebug(dcEnergyExperience()) << "No \"thingCache\" table in database. Creating it.";
m_db.exec("CREATE TABLE thingCache "
"("
"thingId VARCHAR(38) PRIMARY KEY,"
"totalEnergyConsumed FLOAT,"
"totalEnergyProduced FLOAT"
");");
if (m_db.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error creating thingCache table in energy log database. Driver error:" << m_db.lastError().driverText() << "Database error:" << m_db.lastError().databaseText();
return false;
}
}
qCDebug(dcEnergyExperience()) << "Initialized logging DB successfully." << m_db.databaseName();
return true;
}
void EnergyLogger::addConfig(SampleRate sampleRate, SampleRate baseSampleRate, int maxSamples)
{
SampleConfig config;
config.baseSampleRate = baseSampleRate;
config.maxSamples = maxSamples;
m_configs.insert(sampleRate, config);
}
QDateTime EnergyLogger::getOldestPowerBalanceSampleTimestamp(SampleRate sampleRate)
{
QSqlQuery query(m_db);
query.prepare("SELECT MIN(timestamp) AS oldestTimestamp FROM powerBalance WHERE sampleRate = ?;");
query.addBindValue(sampleRate);
query.exec();
if (query.next() && !query.value("oldestTimestamp").isNull()) {
return QDateTime::fromMSecsSinceEpoch(query.value("oldestTimestamp").toLongLong());
}
return QDateTime();
}
QDateTime EnergyLogger::getNewestPowerBalanceSampleTimestamp(SampleRate sampleRate)
{
QSqlQuery query(m_db);
query.prepare("SELECT MAX(timestamp) AS latestTimestamp FROM powerBalance WHERE sampleRate = ?;");
query.addBindValue(sampleRate);
query.exec();
if (query.next() && !query.value("latestTimestamp").isNull()) {
return QDateTime::fromMSecsSinceEpoch(query.value("latestTimestamp").toLongLong());
}
return QDateTime();
}
QDateTime EnergyLogger::getOldestThingPowerSampleTimestamp(const ThingId &thingId, SampleRate sampleRate)
{
QSqlQuery query(m_db);
query.prepare("SELECT MIN(timestamp) AS oldestTimestamp FROM thingPower WHERE thingId = ? AND sampleRate = ?;");
query.addBindValue(thingId);
query.addBindValue(sampleRate);
query.exec();
if (query.next() && !query.value("oldestTimestamp").isNull()) {
return QDateTime::fromMSecsSinceEpoch(query.value("oldestTimestamp").toLongLong());
}
return QDateTime();
}
QDateTime EnergyLogger::getNewestThingPowerSampleTimestamp(const ThingId &thingId, SampleRate sampleRate)
{
QSqlQuery query(m_db);
query.prepare("SELECT MAX(timestamp) AS newestTimestamp FROM thingPower WHERE thingId = ? AND sampleRate = ?;");
query.addBindValue(thingId);
query.addBindValue(sampleRate);
query.exec();
if (query.next() && !query.value("newestTimestamp").isNull()) {
return QDateTime::fromMSecsSinceEpoch(query.value("newestTimestamp").toLongLong());
}
return QDateTime();
}
void EnergyLogger::scheduleNextSample(SampleRate sampleRate)
{
QDateTime next = nextSampleTimestamp(sampleRate, QDateTime::currentDateTime());
m_nextSamples.insert(sampleRate, next);
qCDebug(dcEnergyExperience()) << "Next sample for" << sampleRate << "scheduled at" << next.toString();
}
QDateTime EnergyLogger::calculateSampleStart(const QDateTime &sampleEnd, SampleRate sampleRate, int sampleCount)
{
if (sampleRate == SampleRate1Month) {
return sampleEnd.addMonths(-sampleCount);
} else if (sampleRate == SampleRate1Year) {
return sampleEnd.addYears(-sampleCount);
}
return sampleEnd.addMSecs(-(quint64)sampleCount * sampleRate * 60 * 1000);
}
void EnergyLogger::rectifySamples(SampleRate sampleRate, SampleRate baseSampleRate)
{
// Normally we'd need to find the newest available sample of a series and catch up from there.
// However, it could happen a series does not have any samples at all yet. For example if we're logging since january,
// and at new years the system was off, we missed the new years yearly sample and don't have any earlier. For those cases
// we need to start resampling from the oldest timestamp we find in the DB for the base sampleRate.
QDateTime oldestBaseSample = getOldestPowerBalanceSampleTimestamp(baseSampleRate);
QDateTime newestSample = getNewestPowerBalanceSampleTimestamp(sampleRate);
QDateTime startTime = QDateTime::currentDateTime();
qCDebug(dcEnergyExperience()) << "Checking for missing power balance samples for" << sampleRate;
qCDebug(dcEnergyExperience()) << "Newest sample:" << newestSample.toString() << "Oldest base sample:" << oldestBaseSample.toString();
if (newestSample.isNull()) {
qCDebug(dcEnergyExperience()) << "No sample at all so far. Using base as starting point.";
newestSample = oldestBaseSample;
}
// qCDebug(dcEnergyExperience()) << "next sample after last in series:" << nextSampleTimestamp(sampleRate, newestSample).toString();
// qCDebug(dcEnergyExperience()) << "next scheduled sample:" << m_nextSamples.value(sampleRate).toString();
if (!newestSample.isNull() && nextSampleTimestamp(sampleRate, newestSample) < m_nextSamples[sampleRate]) {
// regularly sample one sample as there may be some valid samples in the base series
QDateTime nextSample = nextSampleTimestamp(sampleRate, newestSample.addMSecs(1000));
samplePowerBalance(sampleRate, baseSampleRate, nextSample);
newestSample = nextSample;
}
// Now retrieve the last sample and just carry over totals
PowerBalanceLogEntry latest = latestLogEntry(sampleRate);
// We only need to rectify up to maxSamples, so don't bother with older ones
if (!newestSample.isNull()) {
newestSample = qMax(newestSample, calculateSampleStart(m_nextSamples[sampleRate], sampleRate, m_configs.value(sampleRate).maxSamples));
}
m_db.transaction();
int count = 0;
while (!newestSample.isNull() && nextSampleTimestamp(sampleRate, newestSample) < m_nextSamples[sampleRate]) {
QDateTime nextSample = nextSampleTimestamp(sampleRate, newestSample.addMSecs(1000));
insertPowerBalance(nextSample, sampleRate, 0, 0, 0, 0, latest.totalConsumption(), latest.totalProduction(), latest.totalAcquisition(), latest.totalReturn());
newestSample = nextSample;
count++;
}
m_db.commit();
qCDebug(dcEnergyExperience()) << "Done rectifying" << count << "power balance samples for" << sampleRate << "in" << startTime.msecsTo(QDateTime::currentDateTime()) << "ms";
foreach (const ThingId &thingId, m_thingsPowerLiveLogs.keys()) {
QDateTime oldestBaseSample = getOldestThingPowerSampleTimestamp(thingId, baseSampleRate);
QDateTime newestSample = getNewestThingPowerSampleTimestamp(thingId, sampleRate);
QDateTime startTime = QDateTime::currentDateTime();
qCDebug(dcEnergyExperience()) << "Checking for missing thing samples for" << sampleRate << "for thing" << thingId;
qCDebug(dcEnergyExperience()) << "Newest sample:" << newestSample.toString() << "Oldest base sample:" << oldestBaseSample.toString();
if (newestSample.isNull()) {
qCDebug(dcEnergyExperience()) << "No sample at all so far. Using base as starting point.";
if (oldestBaseSample.isNull()) {
qCDebug(dcEnergyExperience()) << "Base series doesn't have any samples either. Skipping resampling for" << sampleRate << "for" << thingId;
continue;
}
newestSample = oldestBaseSample;
}
// qCDebug(dcEnergyExperience()) << "T next sample after last in series:" << nextSampleTimestamp(sampleRate, newestSample).toString();
// qCDebug(dcEnergyExperience()) << "T next scheduled sample:" << m_nextSamples.value(sampleRate).toString();
if (!newestSample.isNull() && nextSampleTimestamp(sampleRate, newestSample) < m_nextSamples[sampleRate]) {
QDateTime nextSample = nextSampleTimestamp(sampleRate, newestSample.addMSecs(1000));
sampleThingPower(thingId, sampleRate, baseSampleRate, nextSample);
newestSample = nextSample;
}
// Now retrieve the last sample and just carry over totals
ThingPowerLogEntry latest = latestLogEntry(sampleRate, thingId);
// We only need to rectify up to maxSamples, so don't bother with older ones
newestSample = qMax(newestSample, calculateSampleStart(m_nextSamples[sampleRate], sampleRate, m_configs.value(sampleRate).maxSamples));
m_db.transaction();
int count = 0;
while (!newestSample.isNull() && nextSampleTimestamp(sampleRate, newestSample) < m_nextSamples[sampleRate]) {
QDateTime nextSample = nextSampleTimestamp(sampleRate, newestSample.addMSecs(1000));
insertThingPower(nextSample, sampleRate, thingId, 0, latest.totalConsumption(), latest.totalProduction());
newestSample = nextSample;
count++;
}
m_db.commit();
qCDebug(dcEnergyExperience()) << "Done rectifying" << count << "thing power samples for" << sampleRate << " for" << thingId << "in" << startTime.msecsTo(QDateTime::currentDateTime()) << "ms";
}
}
QDateTime EnergyLogger::nextSampleTimestamp(SampleRate sampleRate, const QDateTime &dateTime)
{
QTime time = dateTime.time();
QDate date = dateTime.date();
QDateTime next;
switch (sampleRate) {
case SampleRateAny:
qCWarning(dcEnergyExperience()) << "Cannot calculate next sample timestamp without a sample rate";
return QDateTime();
case SampleRate1Min:
time.setHMS(time.hour(), time.minute(), 0);
next = QDateTime(date, time).addMSecs(60 * 1000);
break;
case SampleRate15Mins:
time.setHMS(time.hour(), time.minute() - (time.minute() % 15), 0);
next = QDateTime(date, time).addMSecs(15 * 60 * 1000);
break;
case SampleRate1Hour:
time.setHMS(time.hour(), 0, 0);
next = QDateTime(date, time).addMSecs(60 * 60 * 1000);
break;
case SampleRate3Hours:
time.setHMS(time.hour() - (time.hour() % 3), 0, 0);
next = QDateTime(date, time).addMSecs(3 * 60 * 60 * 1000);
break;
case SampleRate1Day:
next = QDateTime(date, QTime()).addDays(1);
break;
case SampleRate1Week:
date = date.addDays(-date.dayOfWeek() + 1);
next = QDateTime(date, QTime()).addDays(7);
break;
case SampleRate1Month:
date = date.addDays(-date.day() + 1);
next = QDateTime(date, QTime()).addMonths(1);
break;
case SampleRate1Year:
date.setDate(date.year(), 1, 1);
next = QDateTime(date, QTime()).addYears(1);
break;
}
return next;
}
bool EnergyLogger::samplePowerBalance(SampleRate sampleRate, SampleRate baseSampleRate, const QDateTime &sampleEnd)
{
QDateTime sampleStart = calculateSampleStart(sampleEnd, sampleRate);
qCDebug(dcEnergyExperience()) << "Sampling power balance" << sampleRate << "from" << sampleStart << "to" << sampleEnd;
double medianConsumption = 0;
double medianProduction = 0;
double medianAcquisition = 0;
double medianStorage = 0;
double totalConsumption = 0;
double totalProduction = 0;
double totalAcquisition = 0;
double totalReturn = 0;
QSqlQuery query(m_db);
query.prepare("SELECT * FROM powerBalance WHERE sampleRate = ? AND timestamp > ? AND timestamp <= ?;");
query.addBindValue(baseSampleRate);
query.addBindValue(sampleStart.toMSecsSinceEpoch());
query.addBindValue(sampleEnd.toMSecsSinceEpoch());
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching power balance samples for" << baseSampleRate << "from" << sampleStart.toString() << "to" << sampleEnd.toString();
qCWarning(dcEnergyExperience()) << "SQL error was:" << query.lastError() << "executed query:" << query.executedQuery();
return false;
}
int resultCount = 0;
while (query.next()) {
resultCount++;
qCDebug(dcEnergyExperience()) << "Frame:" << QDateTime::fromMSecsSinceEpoch(query.value("timestamp").toLongLong()).toString() << query.value("consumption").toDouble() << query.value("production").toDouble() << query.value("acquisition").toDouble() << query.value("storage").toDouble() << query.value("totalConsumption").toDouble() << query.value("totalProduction").toDouble() << query.value("totalAcquisition").toDouble() << query.value("totalReturn").toDouble();
medianConsumption += query.value("consumption").toDouble();
medianProduction += query.value("production").toDouble();
medianAcquisition += query.value("acquisition").toDouble();
medianStorage += query.value("storage").toDouble();
totalConsumption = query.value("totalConsumption").toDouble();
totalProduction = query.value("totalProduction").toDouble();
totalAcquisition = query.value("totalAcquisition").toDouble();
totalReturn = query.value("totalReturn").toDouble();
}
if (resultCount > 0) {
medianConsumption = medianConsumption * baseSampleRate / sampleRate;
medianProduction = medianProduction * baseSampleRate / sampleRate;
medianAcquisition = medianAcquisition * baseSampleRate / sampleRate;
medianStorage = medianStorage * baseSampleRate / sampleRate;
} else {
// If there are no base samples for the given time frame at all, let's try to find the last existing one in the base
// to at least copy the totals from where we left off.
query = QSqlQuery(m_db);
query.prepare("SELECT MAX(timestamp), consumption, production, acquisition, storage, totalConsumption, totalProduction, totalAcquisition, totalReturn FROM powerBalance WHERE sampleRate = ?;");
query.addBindValue(baseSampleRate);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching newest power balance sample for" << baseSampleRate;
qCWarning(dcEnergyExperience()) << "SQL error was:" << query.lastError() << "executed query:" << query.executedQuery();
return false;
}
if (query.next()) {
totalConsumption = query.value("totalConsumption").toDouble();
totalProduction = query.value("totalProduction").toDouble();
totalAcquisition = query.value("totalAcquisition").toDouble();
totalReturn = query.value("totalReturn").toDouble();
}
}
qCDebug(dcEnergyExperience()) << "Sampled:" << "🔥:" << medianConsumption << "🌞:" << medianProduction << "💵:" << medianAcquisition << "🔋:" << medianStorage << "Totals:" << "🔥:" << totalConsumption << "🌞:" << totalProduction << "💵↓:" << totalAcquisition << "💵↑:" << totalReturn;
return insertPowerBalance(sampleEnd, sampleRate, medianConsumption, medianProduction, medianAcquisition, medianStorage, totalConsumption, totalProduction, totalAcquisition, totalReturn);
}
bool EnergyLogger::insertPowerBalance(const QDateTime &timestamp, SampleRate sampleRate, double consumption, double production, double acquisition, double storage, double totalConsumption, double totalProduction, double totalAcquisition, double totalReturn)
{
QSqlQuery query = QSqlQuery(m_db);
query.prepare("INSERT INTO powerBalance (timestamp, sampleRate, consumption, production, acquisition, storage, totalConsumption, totalProduction, totalAcquisition, totalReturn) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);");
query.addBindValue(timestamp.toMSecsSinceEpoch());
query.addBindValue(sampleRate);
query.addBindValue(consumption);
query.addBindValue(production);
query.addBindValue(acquisition);
query.addBindValue(storage);
query.addBindValue(totalConsumption);
query.addBindValue(totalProduction);
query.addBindValue(totalAcquisition);
query.addBindValue(totalReturn);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error logging consumption sample:" << query.lastError() << query.executedQuery();
return false;
}
emit powerBalanceEntryAdded(sampleRate, PowerBalanceLogEntry(timestamp, consumption, production, acquisition, storage, totalConsumption, totalProduction, totalAcquisition, totalReturn));
return true;
}
bool EnergyLogger::sampleThingsPower(SampleRate sampleRate, SampleRate baseSampleRate, const QDateTime &sampleEnd)
{
bool ret = true;
foreach (const ThingId &thingId, m_thingsPowerLiveLogs.keys()) {
ret &= sampleThingPower(thingId, sampleRate, baseSampleRate, sampleEnd);
}
return ret;
}
bool EnergyLogger::sampleThingPower(const ThingId &thingId, SampleRate sampleRate, SampleRate baseSampleRate, const QDateTime &sampleEnd)
{
QDateTime sampleStart = calculateSampleStart(sampleEnd, sampleRate);
qCDebug(dcEnergyExperience()) << "Sampling thing power for" << thingId.toString() << sampleRate << "from" << sampleStart.toString() << "to" << sampleEnd.toString();
double medianCurrentPower = 0;
double totalConsumption = 0;
double totalProduction = 0;
QSqlQuery query(m_db);
query.prepare("SELECT * FROM thingPower WHERE thingId = ? AND sampleRate = ? AND timestamp > ? AND timestamp <= ?;");
query.addBindValue(thingId);
query.addBindValue(baseSampleRate);
query.addBindValue(sampleStart.toMSecsSinceEpoch());
query.addBindValue(sampleEnd.toMSecsSinceEpoch());
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching thing power samples for" << baseSampleRate << "from" << sampleStart.toString() << "to" << sampleEnd.toString();
qCWarning(dcEnergyExperience()) << "SQL error was:" << query.lastError() << "executed query:" << query.executedQuery();
return false;
}
qCDebug(dcEnergyExperience()) << "Query:" << query.executedQuery();
qCDebug(dcEnergyExperience()) << "Results:" << query.size();
int resultCount = 0;
while (query.next()) {
resultCount++;
qCDebug(dcEnergyExperience()) << "Frame:" << query.value("currentPower").toDouble() << QDateTime::fromMSecsSinceEpoch(query.value("timestamp").toLongLong()).toString();
medianCurrentPower += query.value("currentPower").toDouble();
totalConsumption = query.value("totalConsumption").toDouble();
totalProduction = query.value("totalProduction").toDouble();
}
if (resultCount > 0) {
medianCurrentPower = medianCurrentPower * baseSampleRate / sampleRate;
} else {
// If there are no base samples for the given time frame at all, let's try to find the last existing one in the base
// to at least copy the totals from where we left off.
query = QSqlQuery(m_db);
query.prepare("SELECT MAX(timestamp), currentPower, totalConsumption, totalProduction FROM thingPower WHERE thingId = ? AND sampleRate = ?;");
query.addBindValue(thingId);
query.addBindValue(baseSampleRate);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error fetching newest thing power sample for" << thingId.toString() << baseSampleRate;
qCWarning(dcEnergyExperience()) << "SQL error was:" << query.lastError() << "executed query:" << query.executedQuery();
return false;
}
if (query.next()) {
totalConsumption = query.value("totalConsumption").toDouble();
totalProduction = query.value("totalProduction").toDouble();
}
}
qCDebug(dcEnergyExperience()) << "Sampled:" << thingId.toString() << sampleRate << "median currentPower:" << medianCurrentPower << "total consumption:" << totalConsumption << "total production:" << totalProduction;
return insertThingPower(sampleEnd, sampleRate, thingId, medianCurrentPower, totalConsumption, totalProduction);
}
bool EnergyLogger::insertThingPower(const QDateTime &timestamp, SampleRate sampleRate, const ThingId &thingId, double currentPower, double totalConsumption, double totalProduction)
{
QSqlQuery query = QSqlQuery(m_db);
query.prepare("INSERT INTO thingPower (timestamp, sampleRate, thingId, currentPower, totalConsumption, totalProduction) values (?, ?, ?, ?, ?, ?);");
query.addBindValue(timestamp.toMSecsSinceEpoch());
query.addBindValue(sampleRate);
query.addBindValue(thingId);
query.addBindValue(currentPower);
query.addBindValue(totalConsumption);
query.addBindValue(totalProduction);
query.exec();
if (query.lastError().isValid()) {
qCWarning(dcEnergyExperience()) << "Error logging thing power sample:" << query.lastError() << query.executedQuery();
return false;
}
emit thingPowerEntryAdded(sampleRate, ThingPowerLogEntry(timestamp, thingId, currentPower, totalConsumption, totalProduction));
return true;
}
void EnergyLogger::trimPowerBalance(SampleRate sampleRate, const QDateTime &beforeTime)
{
QSqlQuery query(m_db);
query.prepare("DELETE FROM powerBalance WHERE sampleRate = ? AND timestamp < ?;");
query.addBindValue(sampleRate);
query.addBindValue(beforeTime.toMSecsSinceEpoch());
query.exec();
if (query.numRowsAffected() > 0) {
qCDebug(dcEnergyExperience()).nospace() << "Trimmed " << query.numRowsAffected() << " from power balance series: " << sampleRate << " (Older than: " << beforeTime.toString() << ")";
}
}
void EnergyLogger::trimThingPower(const ThingId &thingId, SampleRate sampleRate, const QDateTime &beforeTime)
{
QSqlQuery query(m_db);
query.prepare("DELETE FROM thingPower WHERE thingId = ? AND sampleRate = ? AND timestamp < ?;");
query.addBindValue(thingId);
query.addBindValue(sampleRate);
query.addBindValue(beforeTime.toMSecsSinceEpoch());
query.exec();
if (query.numRowsAffected() > 0) {
qCDebug(dcEnergyExperience()).nospace() << "Trimmed " << query.numRowsAffected() << " from thing power series for: " << thingId << sampleRate << " (Older than: " << beforeTime.toString() << ")";
}
}
PowerBalanceLogEntry EnergyLogger::queryResultToBalanceLogEntry(const QSqlRecord &record) const
{
return PowerBalanceLogEntry(QDateTime::fromMSecsSinceEpoch(record.value("timestamp").toLongLong()),
record.value("consumption").toDouble(),
record.value("production").toDouble(),
record.value("acquisition").toDouble(),
record.value("storage").toDouble(),
record.value("totalConsumption").toDouble(),
record.value("totalProduction").toDouble(),
record.value("totalAcquisition").toDouble(),
record.value("totalReturn").toDouble());
}
ThingPowerLogEntry EnergyLogger::queryResultToThingPowerLogEntry(const QSqlRecord &record) const
{
return ThingPowerLogEntry(QDateTime::fromMSecsSinceEpoch(record.value("timestamp").toULongLong()),
record.value("thingId").toUuid(),
record.value("currentPower").toDouble(),
record.value("totalConsumption").toDouble(),
record.value("totalProduction").toDouble());
}