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duration_validator.go
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/
duration_validator.go
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package validate
import (
"context"
"fmt"
"time"
"github.com/hashicorp/terraform-plugin-framework-validators/helpers/validatordiag"
"github.com/hashicorp/terraform-plugin-framework/schema/validator"
)
type DurationValidator struct {
MinMinutes int
MaxMinutes int
}
func (v DurationValidator) Description(_ context.Context) string {
ds := "string value must be defined as a valid duration, and must be between %d and %d minutes, inclusive. Valid time units are ns, us (or µs), ms, s, h, or m."
return fmt.Sprintf(ds, v.MinMinutes, v.MaxMinutes)
}
func (v DurationValidator) MarkdownDescription(ctx context.Context) string {
return v.Description(ctx)
}
func (v DurationValidator) ValidateString(ctx context.Context, req validator.StringRequest, response *validator.StringResponse) {
// If the value is unknown or null, there is nothing to validate.
if req.ConfigValue.IsUnknown() || req.ConfigValue.IsNull() {
return
}
value := req.ConfigValue.ValueString()
duration, err := time.ParseDuration(value)
if err != nil {
response.Diagnostics.Append(validatordiag.InvalidAttributeValueDiagnostic(
req.Path,
v.Description(ctx),
req.ConfigValue.ValueString(),
))
return
}
if duration.Minutes() < float64(v.MinMinutes) || duration.Minutes() > float64(v.MaxMinutes) {
response.Diagnostics.Append(validatordiag.InvalidAttributeValueDiagnostic(
req.Path,
v.Description(ctx),
req.ConfigValue.ValueString(),
))
}
}
func ValidDurationBetween(minMinutes, maxMinutes int) validator.String {
return DurationValidator{
MinMinutes: minMinutes,
MaxMinutes: maxMinutes,
}
}