Functionality to configure resampling

internal/config/config.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+	"github.com/ClusterCockpit/cc-lib/resampler"
 )
 
 type ProgramConfig struct {
@@ -78,6 +79,8 @@ type ProgramConfig struct {
 }
 
 type ResampleConfig struct {
+	// Minimum number of points to trigger resampling of data
+	MinimumPoints int `json:"minimumPoints"`
 	// Array of resampling target resolutions, in seconds; Example: [600,300,60]
 	Resolutions []int `json:"resolutions"`
 	// Trigger next zoom level at less than this many visible datapoints
@@ -140,4 +143,8 @@ func Init(mainConfig json.RawMessage, clusterConfig json.RawMessage) {
 	if len(Clusters) < 1 {
 		cclog.Abort("Config Init: At least one cluster required in config. Exited with error.")
 	}
+
+	if Keys.EnableResampling.MinimumPoints > 0 {
+		resampler.SetMinimumRequiredPoints(Keys.EnableResampling.MinimumPoints)
+	}
 }

internal/config/schema.go

@@ -102,6 +102,10 @@ var configSchema = `
       "description": "Enable dynamic zoom in frontend metric plots.",
       "type": "object",
       "properties": {
+        "minimumPoints": {
+          "description": "Minimum points to trigger resampling of time-series data.",
+          "type": "integer"
+        },
         "trigger": {
           "description": "Trigger next zoom level at less than this many visible datapoints.",
           "type": "integer"