Function extractContextMetadata

src/go/plugin/ibm.d/framework/state.go:310–389

extractContextMetadata extracts metadata from a Context[T] pointer

(ctx any)

// extractContextMetadata extracts metadata from a Context[T] pointer
func extractContextMetadata(ctx any) *ContextMetadata {
	v := reflect.ValueOf(ctx)
	if v.Kind() == reflect.Pointer {
		v = v.Elem()
	}

	if v.Kind() != reflect.Struct {
		return nil
	}

	// Create metadata object
	meta := &ContextMetadata{}

	// Extract fields
	if name := v.FieldByName("Name"); name.IsValid() && name.Kind() == reflect.String {
		meta.Name = name.String()
	}
	if family := v.FieldByName("Family"); family.IsValid() && family.Kind() == reflect.String {
		meta.Family = family.String()
	}
	if title := v.FieldByName("Title"); title.IsValid() && title.Kind() == reflect.String {
		meta.Title = title.String()
	}
	if units := v.FieldByName("Units"); units.IsValid() && units.Kind() == reflect.String {
		meta.Units = units.String()
	}
	if typ := v.FieldByName("Type"); typ.IsValid() {
		// Type is module.ChartType (string)
		if typ.Kind() == reflect.String {
			meta.Type = collectorapi.ChartType(typ.String())
		}
	}
	if priority := v.FieldByName("Priority"); priority.IsValid() && priority.Kind() == reflect.Int {
		meta.Priority = int(priority.Int())
	}
	if updateEvery := v.FieldByName("UpdateEvery"); updateEvery.IsValid() && updateEvery.Kind() == reflect.Int {
		meta.UpdateEvery = int(updateEvery.Int())
	}

	// Extract LabelKeys slice
	if labelKeys := v.FieldByName("LabelKeys"); labelKeys.IsValid() && labelKeys.Kind() == reflect.Slice {
		meta.HasLabels = labelKeys.Len() > 0
		for i := 0; i < labelKeys.Len(); i++ {
			if key := labelKeys.Index(i); key.Kind() == reflect.String {
				meta.LabelOrder = append(meta.LabelOrder, key.String())
			}
		}
	}

	// Extract dimensions slice
	if dims := v.FieldByName("Dimensions"); dims.IsValid() && dims.Kind() == reflect.Slice {
		for i := 0; i < dims.Len(); i++ {
			dim := dims.Index(i)
			if dim.Kind() == reflect.Struct {
				d := Dimension{}
				if name := dim.FieldByName("Name"); name.IsValid() && name.Kind() == reflect.String {
					d.Name = name.String()
				}