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AzureMonitor: Move Application Insights and Insight Analytics to a deprecated package (#45834)
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259
pkg/tsdb/azuremonitor/loganalytics/azure-response-table-frame.go
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259
pkg/tsdb/azuremonitor/loganalytics/azure-response-table-frame.go
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@@ -0,0 +1,259 @@
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package loganalytics
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import (
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"encoding/json"
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"fmt"
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"math"
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"strconv"
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"time"
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"github.com/grafana/grafana-plugin-sdk-go/data"
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"github.com/grafana/grafana/pkg/tsdb/azuremonitor/types"
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)
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// ResponseTableToFrame converts an AzureResponseTable to a data.Frame.
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func ResponseTableToFrame(table *types.AzureResponseTable) (*data.Frame, error) {
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converterFrame, err := converterFrameForTable(table)
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if err != nil {
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return nil, err
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}
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for rowIdx, row := range table.Rows {
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for fieldIdx, field := range row {
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err = converterFrame.Set(fieldIdx, rowIdx, field)
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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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}
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return converterFrame.Frame, nil
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}
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func converterFrameForTable(t *types.AzureResponseTable) (*data.FrameInputConverter, error) {
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converters := []data.FieldConverter{}
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colNames := make([]string, len(t.Columns))
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colTypes := make([]string, len(t.Columns)) // for metadata
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for i, col := range t.Columns {
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colNames[i] = col.Name
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colTypes[i] = col.Type
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converter, ok := converterMap[col.Type]
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if !ok {
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return nil, fmt.Errorf("unsupported analytics column type %v", col.Type)
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}
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converters = append(converters, converter)
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}
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fic, err := data.NewFrameInputConverter(converters, len(t.Rows))
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if err != nil {
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return nil, err
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}
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err = fic.Frame.SetFieldNames(colNames...)
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if err != nil {
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return nil, err
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}
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fic.Frame.Meta = &data.FrameMeta{
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Custom: &LogAnalyticsMeta{ColumnTypes: colTypes},
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}
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return fic, nil
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}
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var converterMap = map[string]data.FieldConverter{
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"string": stringConverter,
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"guid": stringConverter,
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"timespan": stringConverter,
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"dynamic": stringConverter,
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"object": objectToStringConverter,
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"datetime": timeConverter,
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"int": intConverter,
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"long": longConverter,
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"real": realConverter,
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"bool": boolConverter,
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"decimal": decimalConverter,
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"integer": intConverter,
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"number": decimalConverter,
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}
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var stringConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableString,
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Converter: func(v interface{}) (interface{}, error) {
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var as *string
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if v == nil {
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return as, nil
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}
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s, ok := v.(string)
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if !ok {
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return nil, fmt.Errorf("unexpected type, expected string but got %T", v)
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}
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as = &s
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return as, nil
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},
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}
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var objectToStringConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableString,
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Converter: func(kustoValue interface{}) (interface{}, error) {
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var output *string
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if kustoValue == nil {
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return output, nil
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}
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data, err := json.Marshal(kustoValue)
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if err != nil {
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fmt.Printf("failed to marshal column value: %s", err)
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}
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asString := string(data)
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output = &asString
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return output, nil
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},
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}
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var timeConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableTime,
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Converter: func(v interface{}) (interface{}, error) {
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var at *time.Time
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if v == nil {
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return at, nil
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}
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s, ok := v.(string)
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if !ok {
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return nil, fmt.Errorf("unexpected type, expected string but got %T", v)
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}
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t, err := time.Parse(time.RFC3339Nano, s)
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if err != nil {
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return nil, err
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}
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return &t, nil
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},
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}
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var realConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableFloat64,
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Converter: func(v interface{}) (interface{}, error) {
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var af *float64
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if v == nil {
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return af, nil
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}
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jN, ok := v.(json.Number)
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if !ok {
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s, sOk := v.(string)
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if sOk {
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switch s {
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case "Infinity":
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f := math.Inf(0)
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return &f, nil
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case "-Infinity":
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f := math.Inf(-1)
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return &f, nil
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case "NaN":
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f := math.NaN()
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return &f, nil
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}
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}
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return nil, fmt.Errorf("unexpected type, expected json.Number but got type %T for value %v", v, v)
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}
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f, err := jN.Float64()
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if err != nil {
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return nil, err
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}
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return &f, err
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},
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}
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var boolConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableBool,
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Converter: func(v interface{}) (interface{}, error) {
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var ab *bool
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if v == nil {
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return ab, nil
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}
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b, ok := v.(bool)
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if !ok {
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return nil, fmt.Errorf("unexpected type, expected bool but got %T", v)
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}
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return &b, nil
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},
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}
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var intConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableInt32,
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Converter: func(v interface{}) (interface{}, error) {
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var ai *int32
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if v == nil {
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return ai, nil
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}
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jN, ok := v.(json.Number)
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if !ok {
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return nil, fmt.Errorf("unexpected type, expected json.Number but got %T", v)
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}
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var err error
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iv, err := strconv.ParseInt(jN.String(), 10, 32)
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if err != nil {
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return nil, err
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}
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aInt := int32(iv)
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return &aInt, nil
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},
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}
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var longConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableInt64,
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Converter: func(v interface{}) (interface{}, error) {
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var ai *int64
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if v == nil {
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return ai, nil
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}
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jN, ok := v.(json.Number)
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if !ok {
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return nil, fmt.Errorf("unexpected type, expected json.Number but got %T", v)
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}
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out, err := jN.Int64()
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if err != nil {
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return nil, err
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}
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return &out, err
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},
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}
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// decimalConverter converts the Kusto 128-bit type number to
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// a float64. We do not have 128 bit numbers in our dataframe
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// model yet (and even if we did, not sure how javascript would handle them).
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// In the future, we may want to revisit storing this will proper precision,
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// but for now it solves the case of people getting an error response.
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// If we were to keep it a string, it would not work correctly with calls
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// to functions like sdk's data.LongToWide.
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var decimalConverter = data.FieldConverter{
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OutputFieldType: data.FieldTypeNullableFloat64,
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Converter: func(v interface{}) (interface{}, error) {
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var af *float64
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if v == nil {
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return af, nil
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}
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jS, sOk := v.(string)
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if sOk {
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out, err := strconv.ParseFloat(jS, 64)
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if err != nil {
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return nil, err
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}
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return &out, err
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}
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// As far as I can tell this always comes in a string, but this is in the
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// ADX code, so leaving this in case values do sometimes become a number somehow.
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jN, nOk := v.(json.Number)
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if !nOk {
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return nil, fmt.Errorf("unexpected type, expected json.Number or string but got type %T with a value of %v", v, v)
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}
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out, err := jN.Float64() // Float64 calls strconv.ParseFloat64
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if err != nil {
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return nil, err
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}
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return &out, nil
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},
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}
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