1172 lines
27 KiB
Go
1172 lines
27 KiB
Go
package sqlite3
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import (
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"context"
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"database/sql"
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"embed"
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"errors"
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"fmt"
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"net/url"
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"os"
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"path/filepath"
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"sync"
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"git.cryptic.systems/volker.raschek/flucky/pkg/types"
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"git.cryptic.systems/volker.raschek/go-logger"
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"github.com/golang-migrate/migrate/v4"
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"github.com/johejo/golang-migrate-extra/source/iofs"
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)
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var (
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//go:embed ddl/*.sql
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ddlAssets embed.FS
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//go:embed dml/deleteDeviceByID.sql
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deleteDeviceByIDSQL string
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//go:embed dml/deleteDeviceByName.sql
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deleteDeviceByNameSQL string
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//go:embed dml/deleteSensorByID.sql
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deleteSensorByIDSQL string
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//go:embed dml/deleteSensorByName.sql
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deleteSensorByNameSQL string
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//go:embed dml/insertDevice.sql
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insertDeviceSQL string
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//go:embed dml/insertHumidity.sql
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insertHumiditySQL string
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//go:embed dml/insertOrUpdateDevice.sql
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insertOrUpdateDeviceSQL string
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//go:embed dml/insertOrUpdateHumidity.sql
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insertOrUpdateHumiditySQL string
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//go:embed dml/insertOrUpdatePressure.sql
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insertOrUpdatePressureSQL string
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//go:embed dml/insertOrUpdateSensor.sql
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insertOrUpdateSensorSQL string
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//go:embed dml/insertOrUpdateTemperature.sql
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insertOrUpdateTemperatureSQL string
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//go:embed dml/insertPressure.sql
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insertPressureSQL string
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//go:embed dml/insertSensor.sql
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insertSensorSQL string
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//go:embed dml/insertTemperature.sql
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insertTemperatureSQL string
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//go:embed dml/selectDeviceByID.sql
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selectDeviceByIDSQL string
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//go:embed dml/selectDeviceByName.sql
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selectDeviceByNameSQL string
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//go:embed dml/selectDevices.sql
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selectDevicesSQL string
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//go:embed dml/selectHumidities.sql
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selectHumiditiesSQL string
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//go:embed dml/selectHumidityByID.sql
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selectHumidityByIDSQL string
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//go:embed dml/selectPressureByID.sql
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selectPressureByIDSQL string
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//go:embed dml/selectPressures.sql
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selectPressuresSQL string
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//go:embed dml/selectSensorByID.sql
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selectSensorByIDSQL string
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//go:embed dml/selectSensors.sql
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selectSensorsSQL string
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//go:embed dml/selectSensorsByDeviceID.sql
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selectSensorsByDeviceIDSQL string
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//go:embed dml/selectSensorsByModel.sql
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selectSensorsByModelSQL string
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//go:embed dml/selectSensorsByName.sql
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selectSensorsByNameSQL string
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//go:embed dml/selectTemperatureByID.sql
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selectTemperatureByIDSQL string
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//go:embed dml/selectTemperatures.sql
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selectTemperaturesSQL string
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//go:embed dml/updateDevice.sql
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updateDeviceSQL string
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//go:embed dml/updateSensor.sql
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updateSensorSQL string
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)
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type Opts struct {
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DatabaseURL *url.URL
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Logger logger.Logger
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}
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func (o *Opts) Validate() error {
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for k, v := range map[string]interface{}{
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"DatabaseURL": o.DatabaseURL,
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"Logger": o.Logger,
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} {
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if v == nil {
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return fmt.Errorf("%v does not be empty or nil", k)
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}
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}
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if o.DatabaseURL.Scheme != "sqlite3" {
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return fmt.Errorf("Unsupported database scheme %v for database backend sqlite3", o.DatabaseURL.Scheme)
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}
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return nil
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}
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func New(opts Opts) (*SQLite, error) {
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if err := opts.Validate(); err != nil {
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return nil, err
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}
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// Create directory if not exist
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if _, err := os.Stat(filepath.Dir(opts.DatabaseURL.Path)); os.IsNotExist(err) {
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err := os.MkdirAll(filepath.Dir(opts.DatabaseURL.Path), 0755)
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if err != nil {
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return nil, err
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}
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}
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// enable foreign keys
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values := opts.DatabaseURL.Query()
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values.Set("_foreign_keys", "on")
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customRawURL := fmt.Sprintf("file://%v?%v", opts.DatabaseURL.Path, values.Encode())
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sqlDBO, err := sql.Open(opts.DatabaseURL.Scheme, customRawURL)
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if err != nil {
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return nil, err
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}
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return &SQLite{
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databaseURL: opts.DatabaseURL,
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dbo: sqlDBO,
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flogger: opts.Logger,
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mutex: new(sync.Mutex),
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}, nil
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}
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// SQLite implementation
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type SQLite struct {
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databaseURL *url.URL
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dbo *sql.DB
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flogger logger.Logger
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mutex *sync.Mutex
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}
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// AddDevices into the database
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func (sqlite *SQLite) AddDevices(ctx context.Context, devices ...*types.Device) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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stmt, err := tx.Prepare(insertDeviceSQL)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, device := range devices {
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_, err = stmt.Exec(&device.ID, &device.Name, &device.Location, &device.CreationDate, &device.UpdateDate)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return tx.Commit()
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}
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// AddOrUpdateDevices into the database
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func (sqlite *SQLite) AddOrUpdateDevices(ctx context.Context, devices ...*types.Device) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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stmt, err := tx.Prepare(insertOrUpdateDeviceSQL)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, device := range devices {
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_, err = stmt.Exec(&device.ID, &device.Name, &device.Location, &device.CreationDate, &device.UpdateDate)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return tx.Commit()
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}
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// AddMeasuredValues into the database
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func (sqlite *SQLite) AddMeasuredValues(ctx context.Context, measuredValues ...*types.MeasuredValue) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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splittedMeasuredValues := make(map[types.MeasuredValueType][]*types.MeasuredValue, 0)
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for _, measuredValue := range measuredValues {
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if _, ok := splittedMeasuredValues[measuredValue.ValueType]; !ok {
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splittedMeasuredValues[measuredValue.ValueType] = make([]*types.MeasuredValue, 0)
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}
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splittedMeasuredValues[measuredValue.ValueType] = append(splittedMeasuredValues[measuredValue.ValueType], measuredValue)
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}
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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// General insert function
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insert := func(tx *sql.Tx, query string, measuredValues []*types.MeasuredValue) error {
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stmt, err := tx.Prepare(query)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, measuredValue := range measuredValues {
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_, err := stmt.Exec(
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&measuredValue.ID,
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&measuredValue.Value,
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&measuredValue.Date,
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&measuredValue.SensorID,
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&measuredValue.CreationDate,
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&measuredValue.UpdateDate,
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)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return nil
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}
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for measuredValueType, measuredValues := range splittedMeasuredValues {
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var query string
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switch measuredValueType {
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case types.Humidity:
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query = insertHumiditySQL
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case types.Pressure:
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query = insertPressureSQL
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case types.Temperature:
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query = insertTemperatureSQL
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default:
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return fmt.Errorf("Measured value type %v not supported", measuredValueType)
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}
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err := insert(tx, query, measuredValues)
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if err != nil {
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return err
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}
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}
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return tx.Commit()
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}
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// AddOrUpdateMeasuredValues into the database
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func (sqlite *SQLite) AddOrUpdateMeasuredValues(ctx context.Context, measuredValues ...*types.MeasuredValue) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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splittedMeasuredValues := make(map[types.MeasuredValueType][]*types.MeasuredValue, 0)
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for _, measuredValue := range measuredValues {
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if _, ok := splittedMeasuredValues[measuredValue.ValueType]; !ok {
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splittedMeasuredValues[measuredValue.ValueType] = make([]*types.MeasuredValue, 0)
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}
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splittedMeasuredValues[measuredValue.ValueType] = append(splittedMeasuredValues[measuredValue.ValueType], measuredValue)
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}
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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// General insert function
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insert := func(tx *sql.Tx, query string, measuredValues []*types.MeasuredValue) error {
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stmt, err := tx.Prepare(query)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, measuredValue := range measuredValues {
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_, err := stmt.Exec(
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&measuredValue.ID,
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&measuredValue.Value,
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&measuredValue.Date,
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&measuredValue.SensorID,
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&measuredValue.CreationDate,
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&measuredValue.UpdateDate,
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)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return nil
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}
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for measuredValueType, measuredValues := range splittedMeasuredValues {
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var queryFile string
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switch measuredValueType {
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case types.Humidity:
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queryFile = insertOrUpdateHumiditySQL
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case types.Pressure:
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queryFile = insertOrUpdatePressureSQL
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case types.Temperature:
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queryFile = insertOrUpdateTemperatureSQL
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default:
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return fmt.Errorf("Measured value type %v not supported", measuredValueType)
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}
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err := insert(tx, queryFile, measuredValues)
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if err != nil {
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return err
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}
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}
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return tx.Commit()
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}
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// AddSensors into the database
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func (sqlite *SQLite) AddSensors(ctx context.Context, sensors ...*types.Sensor) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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stmt, err := tx.Prepare(insertSensorSQL)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, sensor := range sensors {
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_, err = stmt.Exec(
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&sensor.ID,
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&sensor.Name,
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&sensor.Location,
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&sensor.WireID,
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&sensor.I2CBus,
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&sensor.I2CAddress,
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&sensor.GPIONumber,
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&sensor.Model,
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&sensor.Enabled,
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&sensor.TickDuration,
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&sensor.DeviceID,
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&sensor.CreationDate,
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&sensor.UpdateDate,
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)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return tx.Commit()
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}
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// AddOrUpdateSensors into the database
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func (sqlite *SQLite) AddOrUpdateSensors(ctx context.Context, sensors ...*types.Sensor) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
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if err != nil {
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return fmt.Errorf("Failed to begin new transaction: %v", err)
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}
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defer tx.Rollback()
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stmt, err := tx.Prepare(insertOrUpdateSensorSQL)
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if err != nil {
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return fmt.Errorf("Failed to prepare statement: %v", err)
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}
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defer stmt.Close()
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for _, sensor := range sensors {
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_, err = stmt.Exec(
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&sensor.ID,
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&sensor.Name,
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&sensor.Location,
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&sensor.WireID,
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&sensor.I2CBus,
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&sensor.I2CAddress,
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&sensor.GPIONumber,
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&sensor.Model,
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&sensor.Enabled,
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&sensor.TickDuration,
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&sensor.DeviceID,
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&sensor.CreationDate,
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&sensor.UpdateDate,
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)
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if err != nil {
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return fmt.Errorf("Failed to execute statement: %v", err)
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}
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}
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return tx.Commit()
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}
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// Close closes the database and prevents new queries from starting. Close then
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// waits for all queries that have started processing on the server to finish.
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func (sqlite *SQLite) Close() error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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return sqlite.dbo.Close()
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}
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|
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// Migrate creates all required tables if not exist
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func (sqlite *SQLite) Migrate(ctx context.Context) error {
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sqlite.mutex.Lock()
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defer sqlite.mutex.Unlock()
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sourceDriver, err := iofs.New(ddlAssets, "ddl")
|
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if err != nil {
|
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return err
|
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}
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|
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m, err := migrate.NewWithSourceInstance("iofs", sourceDriver, sqlite.databaseURL.String())
|
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if err != nil {
|
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return err
|
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}
|
|
|
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err = m.Up()
|
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switch {
|
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case errors.Is(err, migrate.ErrNoChange):
|
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return nil
|
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default:
|
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return err
|
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}
|
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}
|
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|
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// GetDevice from database
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func (sqlite *SQLite) GetDeviceByID(ctx context.Context, id string) (*types.Device, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
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tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
devices, err := sqlite.selectDevices(tx, selectDeviceByIDSQL, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
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err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(devices) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
return devices[0], nil
|
|
}
|
|
|
|
// GetDevice from database
|
|
func (sqlite *SQLite) GetDeviceByName(ctx context.Context, name string) (*types.Device, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
devices, err := sqlite.selectDevices(tx, selectDeviceByNameSQL, name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(devices) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
return devices[0], nil
|
|
}
|
|
|
|
// GetDevices from the database
|
|
func (sqlite *SQLite) GetDevices(ctx context.Context) ([]*types.Device, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
devices, err := sqlite.selectDevices(tx, selectDevicesSQL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
return devices, nil
|
|
}
|
|
|
|
func (sqlite *SQLite) selectDevices(tx *sql.Tx, query string, args ...interface{}) ([]*types.Device, error) {
|
|
stmt, err := tx.Prepare(query)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
rows, err := stmt.Query(args...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to query statement: %v", err)
|
|
}
|
|
defer rows.Close()
|
|
|
|
devices := make([]*types.Device, 0)
|
|
for rows.Next() {
|
|
device := new(types.Device)
|
|
err = rows.Scan(
|
|
&device.ID,
|
|
&device.Name,
|
|
&device.Location,
|
|
&device.CreationDate,
|
|
&device.UpdateDate,
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to scan row: %v", err)
|
|
}
|
|
devices = append(devices, device)
|
|
}
|
|
|
|
return devices, nil
|
|
}
|
|
|
|
// GetHumidity returns humidity from the database
|
|
func (sqlite *SQLite) GetHumidityByID(ctx context.Context, id string) (*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectHumidityByIDSQL, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if measuredValues == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Humidity
|
|
}
|
|
|
|
return measuredValues[0], nil
|
|
}
|
|
|
|
// GetHumidities returns humidities from the database
|
|
func (sqlite *SQLite) GetHumidities(ctx context.Context) ([]*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectHumiditiesSQL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Humidity
|
|
}
|
|
|
|
return measuredValues, nil
|
|
}
|
|
|
|
func (sqlite *SQLite) selectMeasuredValue(tx *sql.Tx, query string, args ...interface{}) ([]*types.MeasuredValue, error) {
|
|
stmt, err := tx.Prepare(query)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer stmt.Close()
|
|
|
|
rows, err := stmt.Query(args...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
measuredValues := make([]*types.MeasuredValue, 0)
|
|
for rows.Next() {
|
|
measuredValue := new(types.MeasuredValue)
|
|
err := rows.Scan(
|
|
&measuredValue.ID,
|
|
&measuredValue.Value,
|
|
&measuredValue.Date,
|
|
&measuredValue.SensorID,
|
|
&measuredValue.CreationDate,
|
|
&measuredValue.UpdateDate,
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
measuredValues = append(measuredValues, measuredValue)
|
|
}
|
|
|
|
return measuredValues, nil
|
|
}
|
|
|
|
// GetPressure returns pressure from the database
|
|
func (sqlite *SQLite) GetPressureByID(ctx context.Context, id string) (*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectPressureByIDSQL, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if measuredValues == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Pressure
|
|
}
|
|
|
|
return measuredValues[0], nil
|
|
}
|
|
|
|
// GetPressures returns pressure from the database
|
|
func (sqlite *SQLite) GetPressures(ctx context.Context) ([]*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectPressuresSQL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Pressure
|
|
}
|
|
|
|
return measuredValues, nil
|
|
}
|
|
|
|
// GetSensor from database
|
|
func (sqlite *SQLite) GetSensorByID(ctx context.Context, id string) (*types.Sensor, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
sensors, err := sqlite.selectSensors(tx, selectSensorByIDSQL, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
if len(sensors) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
return sensors[0], nil
|
|
}
|
|
|
|
// GetSensors from the database
|
|
func (sqlite *SQLite) GetSensors(ctx context.Context) ([]*types.Sensor, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
sensors, err := sqlite.selectSensors(tx, selectSensorsSQL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
return sensors, nil
|
|
}
|
|
|
|
// GetSensorsByModels from the database
|
|
func (sqlite *SQLite) GetSensorsByDeviceIDs(ctx context.Context, deviceIDs ...string) ([]*types.Sensor, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
cachedSensors := make([]*types.Sensor, 0)
|
|
for i := range deviceIDs {
|
|
sensors, err := sqlite.selectSensors(tx, selectSensorsByDeviceIDSQL, deviceIDs[i])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cachedSensors = append(cachedSensors, sensors...)
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
return cachedSensors, nil
|
|
}
|
|
|
|
// GetSensorsByModels from the database
|
|
func (sqlite *SQLite) GetSensorsByModels(ctx context.Context, sensorModels ...string) ([]*types.Sensor, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
cachedSensors := make([]*types.Sensor, 0)
|
|
for i := range sensorModels {
|
|
sensors, err := sqlite.selectSensors(tx, selectSensorsByModelSQL, sensorModels[i])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cachedSensors = append(cachedSensors, sensors...)
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
return cachedSensors, nil
|
|
}
|
|
|
|
// GetSensorsByModels from the database
|
|
func (sqlite *SQLite) GetSensorsByNames(ctx context.Context, sensorNames ...string) ([]*types.Sensor, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
cachedSensors := make([]*types.Sensor, 0)
|
|
for i := range sensorNames {
|
|
sensors, err := sqlite.selectSensors(tx, selectSensorsByNameSQL, sensorNames[i])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
cachedSensors = append(cachedSensors, sensors...)
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to commit transaction: %v", err)
|
|
}
|
|
|
|
return cachedSensors, nil
|
|
}
|
|
|
|
func (sqlite *SQLite) selectSensors(tx *sql.Tx, query string, args ...interface{}) ([]*types.Sensor, error) {
|
|
stmt, err := tx.Prepare(query)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
rows, err := stmt.Query(args...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to query statement: %v", err)
|
|
}
|
|
defer rows.Close()
|
|
|
|
sensors := make([]*types.Sensor, 0)
|
|
for rows.Next() {
|
|
sensor := new(types.Sensor)
|
|
err = rows.Scan(
|
|
&sensor.ID,
|
|
&sensor.Name,
|
|
&sensor.Location,
|
|
&sensor.WireID,
|
|
&sensor.I2CBus,
|
|
&sensor.I2CAddress,
|
|
&sensor.GPIONumber,
|
|
&sensor.Model,
|
|
&sensor.Enabled,
|
|
&sensor.TickDuration,
|
|
&sensor.DeviceID,
|
|
&sensor.CreationDate,
|
|
&sensor.UpdateDate,
|
|
)
|
|
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Failed to scan row: %v", err)
|
|
}
|
|
sensors = append(sensors, sensor)
|
|
}
|
|
|
|
return sensors, nil
|
|
}
|
|
|
|
// GetTemperature returns temperatures from the database
|
|
func (sqlite *SQLite) GetTemperatureByID(ctx context.Context, id string) (*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectTemperatureByIDSQL, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if measuredValues == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Temperature
|
|
}
|
|
|
|
return measuredValues[0], nil
|
|
}
|
|
|
|
// GetTemperatures returns temperatures from the database
|
|
func (sqlite *SQLite) GetTemperatures(ctx context.Context) ([]*types.MeasuredValue, error) {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
measuredValues, err := sqlite.selectMeasuredValue(tx, selectTemperaturesSQL)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
err = tx.Commit()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, measuredValue := range measuredValues {
|
|
measuredValue.ValueType = types.Temperature
|
|
}
|
|
|
|
return measuredValues, nil
|
|
}
|
|
|
|
// RemoveDevices from the database
|
|
func (sqlite *SQLite) RemoveDevicesByIDs(ctx context.Context, deviceIDs ...string) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(deleteDeviceByIDSQL)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, deviceID := range deviceIDs {
|
|
_, err = stmt.Exec(deviceID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|
|
|
|
// RemoveDevices from the database
|
|
func (sqlite *SQLite) RemoveDevicesByNames(ctx context.Context, names ...string) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(deleteDeviceByNameSQL)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, deviceID := range names {
|
|
_, err = stmt.Exec(deviceID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|
|
|
|
// RemoveSensors from the database
|
|
func (sqlite *SQLite) RemoveSensorsByIDs(ctx context.Context, sensorIDs ...string) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(deleteSensorByIDSQL)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, sensorID := range sensorIDs {
|
|
_, err = stmt.Exec(sensorID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|
|
|
|
// RemoveSensors from the database
|
|
func (sqlite *SQLite) RemoveSensorsByNames(ctx context.Context, names ...string) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to begin new transaction: %v", err)
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(deleteSensorByNameSQL)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to prepare statement: %v", err)
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, sensorID := range names {
|
|
_, err = stmt.Exec(sensorID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|
|
|
|
// UpdateDevices updates a device in the database
|
|
func (sqlite *SQLite) UpdateDevices(ctx context.Context, devices ...*types.Device) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(updateDeviceSQL)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, device := range devices {
|
|
_, err := stmt.Exec(
|
|
&device.Name,
|
|
&device.Location,
|
|
&device.CreationDate,
|
|
&device.UpdateDate,
|
|
&device.ID,
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|
|
|
|
// UpdateSensors updates a sensor in the database
|
|
func (sqlite *SQLite) UpdateSensors(ctx context.Context, sensors ...*types.Sensor) error {
|
|
sqlite.mutex.Lock()
|
|
defer sqlite.mutex.Unlock()
|
|
|
|
tx, err := sqlite.dbo.BeginTx(ctx, &sql.TxOptions{ReadOnly: false})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer tx.Rollback()
|
|
|
|
stmt, err := tx.Prepare(updateSensorSQL)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer stmt.Close()
|
|
|
|
for _, sensor := range sensors {
|
|
_, err := stmt.Exec(
|
|
&sensor.Name,
|
|
&sensor.Location,
|
|
&sensor.WireID,
|
|
&sensor.I2CBus,
|
|
&sensor.I2CAddress,
|
|
&sensor.GPIONumber,
|
|
&sensor.Model,
|
|
&sensor.Enabled,
|
|
&sensor.TickDuration,
|
|
&sensor.DeviceID,
|
|
&sensor.CreationDate,
|
|
&sensor.UpdateDate,
|
|
&sensor.ID,
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return tx.Commit()
|
|
}
|