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scrutiny/webapp/backend/pkg/database/scrutiny_repository.go

761 lines
27 KiB

package database
import (
"context"
"fmt"
"github.com/analogj/scrutiny/webapp/backend/pkg"
"github.com/analogj/scrutiny/webapp/backend/pkg/config"
"github.com/analogj/scrutiny/webapp/backend/pkg/models"
"github.com/analogj/scrutiny/webapp/backend/pkg/models/collector"
"github.com/analogj/scrutiny/webapp/backend/pkg/models/measurements"
influxdb2 "github.com/influxdata/influxdb-client-go/v2"
"github.com/influxdata/influxdb-client-go/v2/api"
"github.com/influxdata/influxdb-client-go/v2/domain"
"github.com/sirupsen/logrus"
"gorm.io/driver/sqlite"
"gorm.io/gorm"
"gorm.io/gorm/clause"
"strings"
"time"
)
const (
// 60seconds * 60minutes * 24hours * 15 days
RETENTION_PERIOD_15_DAYS_IN_SECONDS = 1_296_000
// 60seconds * 60minutes * 24hours * 7 days * 9 weeks
RETENTION_PERIOD_9_WEEKS_IN_SECONDS = 5_443_200
// 60seconds * 60minutes * 24hours * 7 days * (52 + 52 + 4)weeks
RETENTION_PERIOD_25_MONTHS_IN_SECONDS = 65_318_400
DURATION_KEY_WEEK = "week"
DURATION_KEY_MONTH = "month"
DURATION_KEY_YEAR = "year"
DURATION_KEY_FOREVER = "forever"
)
//// GormLogger is a custom logger for Gorm, making it use logrus.
//type GormLogger struct{ Logger logrus.FieldLogger }
//
//// Print handles log events from Gorm for the custom logger.
//func (gl *GormLogger) Print(v ...interface{}) {
// switch v[0] {
// case "sql":
// gl.Logger.WithFields(
// logrus.Fields{
// "module": "gorm",
// "type": "sql",
// "rows": v[5],
// "src_ref": v[1],
// "values": v[4],
// },
// ).Debug(v[3])
// case "log":
// gl.Logger.WithFields(logrus.Fields{"module": "gorm", "type": "log"}).Print(v[2])
// }
//}
func NewScrutinyRepository(appConfig config.Interface, globalLogger logrus.FieldLogger) (DeviceRepo, error) {
backgroundContext := context.Background()
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Gorm/SQLite setup
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
fmt.Printf("Trying to connect to database stored: %s\n", appConfig.GetString("web.database.location"))
database, err := gorm.Open(sqlite.Open(appConfig.GetString("web.database.location")), &gorm.Config{
//TODO: figure out how to log database queries again.
//Logger: logger
})
if err != nil {
return nil, fmt.Errorf("Failed to connect to database! - %v", err)
}
//database.SetLogger()
database.AutoMigrate(&models.Device{})
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// InfluxDB setup
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Create a new client using an InfluxDB server base URL and an authentication token
influxdbUrl := fmt.Sprintf("http://%s:%s", appConfig.GetString("web.influxdb.host"), appConfig.GetString("web.influxdb.port"))
globalLogger.Debugf("InfluxDB url: %s", influxdbUrl)
client := influxdb2.NewClient(influxdbUrl, appConfig.GetString("web.influxdb.token"))
if !appConfig.IsSet("web.influxdb.token") {
globalLogger.Debugf("No influxdb token found, running first-time setup...")
// if no token is provided, but we have a valid server, we're going to assume this is the first setup of our server.
// we will initialize with a predetermined username & password, that you should change.
// metrics bucket will have a retention period of 8 days (since it will be down-sampled once a week)
// in seconds (60seconds * 60minutes * 24hours * 15 days) = 1_296_000 (see EnsureBucket() function)
onboardingResponse, err := client.Setup(
backgroundContext,
appConfig.GetString("web.influxdb.init_username"),
appConfig.GetString("web.influxdb.init_password"),
appConfig.GetString("web.influxdb.org"),
appConfig.GetString("web.influxdb.bucket"),
0)
if err != nil {
return nil, err
}
appConfig.Set("web.influxdb.token", *onboardingResponse.Auth.Token)
//todo: determine if we should write the config file out here.
}
// Use blocking write client for writes to desired bucket
writeAPI := client.WriteAPIBlocking(appConfig.GetString("web.influxdb.org"), appConfig.GetString("web.influxdb.bucket"))
// Get query client
queryAPI := client.QueryAPI(appConfig.GetString("web.influxdb.org"))
// Get task client
taskAPI := client.TasksAPI()
if writeAPI == nil || queryAPI == nil || taskAPI == nil {
return nil, fmt.Errorf("Failed to connect to influxdb!")
}
deviceRepo := scrutinyRepository{
appConfig: appConfig,
logger: globalLogger,
influxClient: client,
influxWriteApi: writeAPI,
influxQueryApi: queryAPI,
influxTaskApi: taskAPI,
gormClient: database,
}
orgInfo, err := client.OrganizationsAPI().FindOrganizationByName(backgroundContext, appConfig.GetString("web.influxdb.org"))
if err != nil {
return nil, err
}
// Initialize Buckets (if necessary)
err = deviceRepo.EnsureBuckets(backgroundContext, orgInfo)
if err != nil {
return nil, err
}
// Initialize Background Tasks
err = deviceRepo.EnsureTasks(backgroundContext, *orgInfo.Id)
if err != nil {
return nil, err
}
return &deviceRepo, nil
}
type scrutinyRepository struct {
appConfig config.Interface
logger logrus.FieldLogger
influxWriteApi api.WriteAPIBlocking
influxQueryApi api.QueryAPI
influxTaskApi api.TasksAPI
influxClient influxdb2.Client
gormClient *gorm.DB
}
func (sr *scrutinyRepository) Close() error {
sr.influxClient.Close()
return nil
}
func (sr *scrutinyRepository) EnsureBuckets(ctx context.Context, org *domain.Organization) error {
var mainBucketRetentionRule domain.RetentionRule
var weeklyBucketRetentionRule domain.RetentionRule
var monthlyBucketRetentionRule domain.RetentionRule
if sr.appConfig.GetBool("web.influxdb.retention_policy") {
// for tetsting purposes, we may not want to set a retention policy, this will allow to set data with old timestamps,
//then manually run the downsampling scripts
mainBucketRetentionRule = domain.RetentionRule{EverySeconds: RETENTION_PERIOD_15_DAYS_IN_SECONDS}
weeklyBucketRetentionRule = domain.RetentionRule{EverySeconds: RETENTION_PERIOD_9_WEEKS_IN_SECONDS}
monthlyBucketRetentionRule = domain.RetentionRule{EverySeconds: RETENTION_PERIOD_25_MONTHS_IN_SECONDS}
}
mainBucket := sr.appConfig.GetString("web.influxdb.bucket")
if foundMainBucket, foundErr := sr.influxClient.BucketsAPI().FindBucketByName(ctx, mainBucket); foundErr != nil {
// metrics bucket will have a retention period of 15 days (since it will be down-sampled once a week)
_, err := sr.influxClient.BucketsAPI().CreateBucketWithName(ctx, org, mainBucket, mainBucketRetentionRule)
if err != nil {
return err
}
} else if sr.appConfig.GetBool("web.influxdb.retention_policy") {
//correctly set the retention period for the main bucket (cant do it during setup/creation)
foundMainBucket.RetentionRules = domain.RetentionRules{mainBucketRetentionRule}
sr.influxClient.BucketsAPI().UpdateBucket(ctx, foundMainBucket)
}
//create buckets (used for downsampling)
weeklyBucket := fmt.Sprintf("%s_weekly", sr.appConfig.GetString("web.influxdb.bucket"))
if _, foundErr := sr.influxClient.BucketsAPI().FindBucketByName(ctx, weeklyBucket); foundErr != nil {
// metrics_weekly bucket will have a retention period of 8+1 weeks (since it will be down-sampled once a month)
_, err := sr.influxClient.BucketsAPI().CreateBucketWithName(ctx, org, weeklyBucket, weeklyBucketRetentionRule)
if err != nil {
return err
}
}
monthlyBucket := fmt.Sprintf("%s_monthly", sr.appConfig.GetString("web.influxdb.bucket"))
if _, foundErr := sr.influxClient.BucketsAPI().FindBucketByName(ctx, monthlyBucket); foundErr != nil {
// metrics_monthly bucket will have a retention period of 24+1 months (since it will be down-sampled once a year)
_, err := sr.influxClient.BucketsAPI().CreateBucketWithName(ctx, org, monthlyBucket, monthlyBucketRetentionRule)
if err != nil {
return err
}
}
yearlyBucket := fmt.Sprintf("%s_yearly", sr.appConfig.GetString("web.influxdb.bucket"))
if _, foundErr := sr.influxClient.BucketsAPI().FindBucketByName(ctx, yearlyBucket); foundErr != nil {
// metrics_yearly bucket will have an infinite retention period
_, err := sr.influxClient.BucketsAPI().CreateBucketWithName(ctx, org, yearlyBucket)
if err != nil {
return err
}
}
return nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Tasks
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *scrutinyRepository) EnsureTasks(ctx context.Context, orgID string) error {
weeklyTaskName := "tsk-weekly-aggr"
if found, findErr := sr.influxTaskApi.FindTasks(ctx, &api.TaskFilter{Name: weeklyTaskName}); findErr == nil && len(found) == 0 {
//weekly on Sunday at 1:00am
_, err := sr.influxTaskApi.CreateTaskWithCron(ctx, weeklyTaskName, sr.DownsampleScript("weekly"), "0 1 * * 0", orgID)
if err != nil {
return err
}
}
monthlyTaskName := "tsk-monthly-aggr"
if found, findErr := sr.influxTaskApi.FindTasks(ctx, &api.TaskFilter{Name: monthlyTaskName}); findErr == nil && len(found) == 0 {
//monthly on first day of the month at 1:30am
_, err := sr.influxTaskApi.CreateTaskWithCron(ctx, monthlyTaskName, sr.DownsampleScript("monthly"), "30 1 1 * *", orgID)
if err != nil {
return err
}
}
yearlyTaskName := "tsk-yearly-aggr"
if found, findErr := sr.influxTaskApi.FindTasks(ctx, &api.TaskFilter{Name: yearlyTaskName}); findErr == nil && len(found) == 0 {
//yearly on the first day of the year at 2:00am
_, err := sr.influxTaskApi.CreateTaskWithCron(ctx, yearlyTaskName, sr.DownsampleScript("yearly"), "0 2 1 1 *", orgID)
if err != nil {
return err
}
}
return nil
}
func (sr *scrutinyRepository) DownsampleScript(aggregationType string) string {
var sourceBucket string // the source of the data
var destBucket string // the destination for the aggregated data
var rangeStart string
var rangeEnd string
var aggWindow string
switch aggregationType {
case "weekly":
sourceBucket = sr.appConfig.GetString("web.influxdb.bucket")
destBucket = fmt.Sprintf("%s_weekly", sr.appConfig.GetString("web.influxdb.bucket"))
rangeStart = "-2w"
rangeEnd = "-1w"
aggWindow = "1w"
case "monthly":
sourceBucket = fmt.Sprintf("%s_weekly", sr.appConfig.GetString("web.influxdb.bucket"))
destBucket = fmt.Sprintf("%s_monthly", sr.appConfig.GetString("web.influxdb.bucket"))
rangeStart = "-2mo"
rangeEnd = "-1mo"
aggWindow = "1mo"
case "yearly":
sourceBucket = fmt.Sprintf("%s_monthly", sr.appConfig.GetString("web.influxdb.bucket"))
destBucket = fmt.Sprintf("%s_yearly", sr.appConfig.GetString("web.influxdb.bucket"))
rangeStart = "-2y"
rangeEnd = "-1y"
aggWindow = "1y"
}
return fmt.Sprintf(`
sourceBucket = "%s"
rangeStart = %s
rangeEnd = %s
aggWindow = %s
destBucket = "%s"
destOrg = "%s"
smart_data = from(bucket: sourceBucket)
|> range(start: rangeStart, stop: rangeEnd)
|> filter(fn: (r) => r["_measurement"] == "smart" )
|> filter(fn: (r) => r["_field"] !~ /(raw_string|_measurement|device_protocol|status_reason|device_wwn|attribute_id|when_failed)/)
|> last()
|> yield(name: "last")
smart_data
|> aggregateWindow(fn: mean, every: aggWindow)
|> to(bucket: destBucket, org: destOrg)
temp_data = from(bucket: sourceBucket)
|> range(start: rangeStart, stop: rangeEnd)
|> filter(fn: (r) => r["_measurement"] == "temp")
|> last()
|> yield(name: "mean")
temp_data
|> aggregateWindow(fn: mean, every: aggWindow)
|> to(bucket: destBucket, org: destOrg)
`,
sourceBucket,
rangeStart,
rangeEnd,
aggWindow,
destBucket,
sr.appConfig.GetString("web.influxdb.org"),
)
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Device
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//insert device into DB (and update specified columns if device is already registered)
// update device fields that may change: (DeviceType, HostID)
func (sr *scrutinyRepository) RegisterDevice(ctx context.Context, dev models.Device) error {
if err := sr.gormClient.WithContext(ctx).Clauses(clause.OnConflict{
Columns: []clause.Column{{Name: "wwn"}},
DoUpdates: clause.AssignmentColumns([]string{"host_id", "device_name", "device_type"}),
}).Create(&dev).Error; err != nil {
return err
}
return nil
}
// get a list of all devices (only device metadata, no SMART data)
func (sr *scrutinyRepository) GetDevices(ctx context.Context) ([]models.Device, error) {
//Get a list of all the active devices.
devices := []models.Device{}
if err := sr.gormClient.WithContext(ctx).Find(&devices).Error; err != nil {
return nil, fmt.Errorf("Could not get device summary from DB: %v", err)
}
return devices, nil
}
// update device (only metadata) from collector
func (sr *scrutinyRepository) UpdateDevice(ctx context.Context, wwn string, collectorSmartData collector.SmartInfo) (models.Device, error) {
var device models.Device
if err := sr.gormClient.WithContext(ctx).Where("wwn = ?", wwn).First(&device).Error; err != nil {
return device, fmt.Errorf("Could not get device from DB: %v", err)
}
//TODO catch GormClient err
err := device.UpdateFromCollectorSmartInfo(collectorSmartData)
if err != nil {
return device, err
}
return device, sr.gormClient.Model(&device).Updates(device).Error
}
//Update Device Status
func (sr *scrutinyRepository) UpdateDeviceStatus(ctx context.Context, wwn string, status pkg.DeviceStatus) (models.Device, error) {
var device models.Device
if err := sr.gormClient.WithContext(ctx).Where("wwn = ?", wwn).First(&device).Error; err != nil {
return device, fmt.Errorf("Could not get device from DB: %v", err)
}
device.DeviceStatus = pkg.Set(device.DeviceStatus, status)
return device, sr.gormClient.Model(&device).Updates(device).Error
}
func (sr *scrutinyRepository) GetDeviceDetails(ctx context.Context, wwn string) (models.Device, error) {
var device models.Device
fmt.Println("GetDeviceDetails from GORM")
if err := sr.gormClient.WithContext(ctx).Where("wwn = ?", wwn).First(&device).Error; err != nil {
return models.Device{}, err
}
return device, nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// SMART
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *scrutinyRepository) SaveSmartAttributes(ctx context.Context, wwn string, collectorSmartData collector.SmartInfo) (measurements.Smart, error) {
deviceSmartData := measurements.Smart{}
err := deviceSmartData.FromCollectorSmartInfo(wwn, collectorSmartData)
if err != nil {
sr.logger.Errorln("Could not process SMART metrics", err)
return measurements.Smart{}, err
}
tags, fields := deviceSmartData.Flatten()
p := influxdb2.NewPoint("smart",
tags,
fields,
deviceSmartData.Date)
// write point immediately
return deviceSmartData, sr.influxWriteApi.WritePoint(ctx, p)
}
func (sr *scrutinyRepository) GetSmartAttributeHistory(ctx context.Context, wwn string, startAt string, attributes []string) ([]measurements.Smart, error) {
// Get SMartResults from InfluxDB
fmt.Println("GetDeviceDetails from INFLUXDB")
//TODO: change the filter startrange to a real number.
// Get parser flux query result
//appConfig.GetString("web.influxdb.bucket")
queryStr := fmt.Sprintf(`
import "influxdata/influxdb/schema"
from(bucket: "%s")
|> range(start: -2y, stop: now())
|> filter(fn: (r) => r["_measurement"] == "smart" )
|> filter(fn: (r) => r["device_wwn"] == "%s" )
|> schema.fieldsAsCols()
|> group(columns: ["device_wwn"])
|> yield(name: "last")
`,
sr.appConfig.GetString("web.influxdb.bucket"),
wwn,
)
smartResults := []measurements.Smart{}
result, err := sr.influxQueryApi.Query(ctx, queryStr)
if err == nil {
fmt.Println("GetDeviceDetails NO EROR")
// Use Next() to iterate over query result lines
for result.Next() {
fmt.Println("GetDeviceDetails NEXT")
// Observe when there is new grouping key producing new table
if result.TableChanged() {
//fmt.Printf("table: %s\n", result.TableMetadata().String())
}
fmt.Printf("DECODINIG TABLE VALUES: %v", result.Record().Values())
smartData, err := measurements.NewSmartFromInfluxDB(result.Record().Values())
if err != nil {
return nil, err
}
smartResults = append(smartResults, *smartData)
}
if result.Err() != nil {
fmt.Printf("Query error: %s\n", result.Err().Error())
}
} else {
return nil, err
}
return smartResults, nil
//if err := device.SquashHistory(); err != nil {
// logger.Errorln("An error occurred while squashing device history", err)
// c.JSON(http.StatusInternalServerError, gin.H{"success": false})
// return
//}
//
//if err := device.ApplyMetadataRules(); err != nil {
// logger.Errorln("An error occurred while applying scrutiny thresholds & rules", err)
// c.JSON(http.StatusInternalServerError, gin.H{"success": false})
// return
//}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Temperature Data
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *scrutinyRepository) SaveSmartTemperature(ctx context.Context, wwn string, deviceProtocol string, collectorSmartData collector.SmartInfo) error {
if len(collectorSmartData.AtaSctTemperatureHistory.Table) > 0 {
for ndx, temp := range collectorSmartData.AtaSctTemperatureHistory.Table {
minutesOffset := collectorSmartData.AtaSctTemperatureHistory.LoggingIntervalMinutes * int64(ndx) * 60
smartTemp := measurements.SmartTemperature{
Date: time.Unix(collectorSmartData.LocalTime.TimeT-minutesOffset, 0),
Temp: temp,
}
tags, fields := smartTemp.Flatten()
tags["device_wwn"] = wwn
p := influxdb2.NewPoint("temp",
tags,
fields,
smartTemp.Date)
err := sr.influxWriteApi.WritePoint(ctx, p)
if err != nil {
return err
}
}
// also add the current temperature.
} else {
smartTemp := measurements.SmartTemperature{
Date: time.Unix(collectorSmartData.LocalTime.TimeT, 0),
Temp: collectorSmartData.Temperature.Current,
}
tags, fields := smartTemp.Flatten()
tags["device_wwn"] = wwn
p := influxdb2.NewPoint("temp",
tags,
fields,
smartTemp.Date)
return sr.influxWriteApi.WritePoint(ctx, p)
}
return nil
}
func (sr *scrutinyRepository) GetSmartTemperatureHistory(ctx context.Context, durationKey string) (map[string][]measurements.SmartTemperature, error) {
//we can get temp history for "week", "month", DURATION_KEY_YEAR, "forever"
deviceTempHistory := map[string][]measurements.SmartTemperature{}
//TODO: change the query range to a variable.
queryStr := sr.aggregateTempQuery(durationKey)
result, err := sr.influxQueryApi.Query(ctx, queryStr)
if err == nil {
// Use Next() to iterate over query result lines
for result.Next() {
if deviceWWN, ok := result.Record().Values()["device_wwn"]; ok {
//check if deviceWWN has been seen and initialized already
if _, ok := deviceTempHistory[deviceWWN.(string)]; !ok {
deviceTempHistory[deviceWWN.(string)] = []measurements.SmartTemperature{}
}
currentTempHistory := deviceTempHistory[deviceWWN.(string)]
smartTemp := measurements.SmartTemperature{}
for key, val := range result.Record().Values() {
smartTemp.Inflate(key, val)
}
smartTemp.Date = result.Record().Values()["_time"].(time.Time)
currentTempHistory = append(currentTempHistory, smartTemp)
deviceTempHistory[deviceWWN.(string)] = currentTempHistory
}
}
if result.Err() != nil {
fmt.Printf("Query error: %s\n", result.Err().Error())
}
} else {
return nil, err
}
return deviceTempHistory, nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// DeviceSummary
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// get a map of all devices and associated SMART data
func (sr *scrutinyRepository) GetSummary(ctx context.Context) (map[string]*models.DeviceSummary, error) {
devices, err := sr.GetDevices(ctx)
if err != nil {
return nil, err
}
summaries := map[string]*models.DeviceSummary{}
for _, device := range devices {
summaries[device.WWN] = &models.DeviceSummary{Device: device}
}
// Get parser flux query result
//appConfig.GetString("web.influxdb.bucket")
queryStr := fmt.Sprintf(`
import "influxdata/influxdb/schema"
from(bucket: "%s")
|> range(start: -1y, stop: now())
|> filter(fn: (r) => r["_measurement"] == "smart" )
|> filter(fn: (r) => r["_field"] == "temp" or r["_field"] == "power_on_hours" or r["_field"] == "date")
|> last()
|> schema.fieldsAsCols()
|> group(columns: ["device_wwn"])
|> yield(name: "last")
`,
sr.appConfig.GetString("web.influxdb.bucket"),
)
result, err := sr.influxQueryApi.Query(ctx, queryStr)
if err == nil {
// Use Next() to iterate over query result lines
for result.Next() {
// Observe when there is new grouping key producing new table
if result.TableChanged() {
//fmt.Printf("table: %s\n", result.TableMetadata().String())
}
// read result
//get summary data from Influxdb.
//result.Record().Values()
if deviceWWN, ok := result.Record().Values()["device_wwn"]; ok {
//ensure summaries is intialized for this wwn
if _, exists := summaries[deviceWWN.(string)]; !exists {
summaries[deviceWWN.(string)] = &models.DeviceSummary{}
}
summaries[deviceWWN.(string)].SmartResults = &models.SmartSummary{
Temp: result.Record().Values()["temp"].(int64),
PowerOnHours: result.Record().Values()["power_on_hours"].(int64),
CollectorDate: result.Record().Values()["_time"].(time.Time),
}
}
}
if result.Err() != nil {
fmt.Printf("Query error: %s\n", result.Err().Error())
}
} else {
return nil, err
}
deviceTempHistory, err := sr.GetSmartTemperatureHistory(ctx, DURATION_KEY_WEEK)
if err != nil {
sr.logger.Printf("========================>>>>>>>>======================")
sr.logger.Printf("========================>>>>>>>>======================")
sr.logger.Printf("========================>>>>>>>>======================")
sr.logger.Printf("========================>>>>>>>>======================")
sr.logger.Printf("========================>>>>>>>>======================")
sr.logger.Printf("Error: %v", err)
}
for wwn, tempHistory := range deviceTempHistory {
summaries[wwn].TempHistory = tempHistory
}
return summaries, nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Helper Methods
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *scrutinyRepository) lookupBucketName(durationKey string) string {
switch durationKey {
case DURATION_KEY_WEEK:
//data stored in the last week
return sr.appConfig.GetString("web.influxdb.bucket")
case DURATION_KEY_MONTH:
// data stored in the last month (after the first week)
return fmt.Sprintf("%s_weekly", sr.appConfig.GetString("web.influxdb.bucket"))
case DURATION_KEY_YEAR:
// data stored in the last year (after the first month)
return fmt.Sprintf("%s_monthly", sr.appConfig.GetString("web.influxdb.bucket"))
case DURATION_KEY_FOREVER:
//data stored before the last year
return fmt.Sprintf("%s_yearly", sr.appConfig.GetString("web.influxdb.bucket"))
}
return sr.appConfig.GetString("web.influxdb.bucket")
}
func (sr *scrutinyRepository) lookupDuration(durationKey string) []string {
switch durationKey {
case DURATION_KEY_WEEK:
//data stored in the last week
return []string{"-1w", "now()"}
case DURATION_KEY_MONTH:
// data stored in the last month (after the first week)
return []string{"-1mo", "-1w"}
case DURATION_KEY_YEAR:
// data stored in the last year (after the first month)
return []string{"-1y", "-1mo"}
case DURATION_KEY_FOREVER:
//data stored before the last year
return []string{"-10y", "-1y"}
}
return []string{"-1w", "now()"}
}
func (sr *scrutinyRepository) lookupNestedDurationKeys(durationKey string) []string {
switch durationKey {
case DURATION_KEY_WEEK:
//all data is stored in a single bucket
return []string{DURATION_KEY_WEEK}
case DURATION_KEY_MONTH:
//data is stored in the week bucket and the month bucket
return []string{DURATION_KEY_WEEK, DURATION_KEY_MONTH}
case DURATION_KEY_YEAR:
// data stored in the last year (after the first month)
return []string{DURATION_KEY_WEEK, DURATION_KEY_MONTH, DURATION_KEY_YEAR}
case DURATION_KEY_FOREVER:
//data stored before the last year
return []string{DURATION_KEY_WEEK, DURATION_KEY_MONTH, DURATION_KEY_YEAR}
}
return []string{DURATION_KEY_WEEK}
}
func (sr *scrutinyRepository) aggregateTempQuery(durationKey string) string {
//TODO: change the query range to a variable.
//queryStr := fmt.Sprintf(`
//import "influxdata/influxdb/schema"
//from(bucket: "%s")
//|> range(start: %s, stop: now())
//|> filter(fn: (r) => r["_measurement"] == "temp" )
//|> aggregateWindow(every: 1h, fn: mean, createEmpty: false)
//|> schema.fieldsAsCols()
//|> group(columns: ["device_wwn"])
//|> yield(name: "last")
// `,
// sr.lookupBucketName(durationKey),
// sr.lookupDuration(durationKey),
//)
partialQueryStr := []string{`import "influxdata/influxdb/schema"`}
nestedDurationKeys := sr.lookupNestedDurationKeys(durationKey)
subQueryNames := []string{}
for _, nestedDurationKey := range nestedDurationKeys {
bucketName := sr.lookupBucketName(nestedDurationKey)
durationRange := sr.lookupDuration(nestedDurationKey)
subQueryNames = append(subQueryNames, fmt.Sprintf(`%sData`, nestedDurationKey))
partialQueryStr = append(partialQueryStr, []string{
fmt.Sprintf(`%sData = from(bucket: "%s")`, nestedDurationKey, bucketName),
fmt.Sprintf(`|> range(start: %s, stop: %s)`, durationRange[0], durationRange[1]),
`|> filter(fn: (r) => r["_measurement"] == "temp" )`,
`|> aggregateWindow(every: 1h, fn: mean, createEmpty: false)`,
`|> group(columns: ["device_wwn"])`,
`|> toInt()`,
"",
}...)
}
if len(subQueryNames) == 1 {
//there's only one bucket being queried, no need to union, just aggregate the dataset and return
partialQueryStr = append(partialQueryStr, []string{
subQueryNames[0],
"|> schema.fieldsAsCols()",
"|> yield()",
}...)
} else {
partialQueryStr = append(partialQueryStr, []string{
fmt.Sprintf("union(tables: [%s])", strings.Join(subQueryNames, ", ")),
`|> group(columns: ["device_wwn"])`,
`|> sort(columns: ["_time"], desc: false)`,
"|> schema.fieldsAsCols()",
}...)
}
return strings.Join(partialQueryStr, "\n")
}