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different_from.go
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different_from.go
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package apstravalidator
import (
"context"
"fmt"
"github.com/hashicorp/terraform-plugin-framework-validators/helpers/validatordiag"
"github.com/hashicorp/terraform-plugin-framework/attr"
"github.com/hashicorp/terraform-plugin-framework/diag"
"github.com/hashicorp/terraform-plugin-framework/path"
"github.com/hashicorp/terraform-plugin-framework/schema/validator"
"github.com/hashicorp/terraform-plugin-framework/tfsdk"
)
var (
_ validator.Bool = DifferentFromValidator{}
_ validator.Float64 = DifferentFromValidator{}
_ validator.Int64 = DifferentFromValidator{}
_ validator.List = DifferentFromValidator{}
_ validator.Map = DifferentFromValidator{}
_ validator.Number = DifferentFromValidator{}
_ validator.Object = DifferentFromValidator{}
_ validator.Set = DifferentFromValidator{}
_ validator.String = DifferentFromValidator{}
)
// DifferentFromValidator is the underlying struct implementing DifferentFrom.
type DifferentFromValidator struct {
PathExpressions path.Expressions
}
type DifferentFromValidatorRequest struct {
Config tfsdk.Config
ConfigValue attr.Value
Path path.Path
PathExpression path.Expression
}
type DifferentFromValidatorResponse struct {
Diagnostics diag.Diagnostics
}
func (o DifferentFromValidator) Description(ctx context.Context) string {
return o.MarkdownDescription(ctx)
}
func (o DifferentFromValidator) MarkdownDescription(_ context.Context) string {
return fmt.Sprintf("Ensure that if an attribute is set, these don't share the same value: %q", o.PathExpressions)
}
func (o DifferentFromValidator) Validate(ctx context.Context, req DifferentFromValidatorRequest, resp *DifferentFromValidatorResponse) {
// If attribute configuration is null, there is nothing else to validate
if req.ConfigValue.IsNull() {
return
}
expressions := req.PathExpression.MergeExpressions(o.PathExpressions...)
for _, expression := range expressions {
matchedPaths, diags := req.Config.PathMatches(ctx, expression)
resp.Diagnostics.Append(diags...)
// Collect all errors
if diags.HasError() {
continue
}
for _, mp := range matchedPaths {
// If the user specifies the same attribute this apstra_validator is applied to,
// also as part of the input, skip it
if mp.Equal(req.Path) {
continue
}
var mpVal attr.Value
diags = req.Config.GetAttribute(ctx, mp, &mpVal)
resp.Diagnostics.Append(diags...)
// Collect all errors
if diags.HasError() {
continue
}
// Unknown and Null attributes can't have value collisions
if mpVal.IsNull() || mpVal.IsUnknown() {
continue
}
if req.ConfigValue.Equal(mpVal) {
resp.Diagnostics.Append(validatordiag.InvalidAttributeCombinationDiagnostic(
req.Path,
fmt.Sprintf("Attribute %q cannot have the same value as %q", req.Path, mp),
))
}
}
}
}
// DifferentFrom checks that a set of path.Expression have values equal to the
// current attribute when the current attribute is non-null.
//
// Relative path.Expression will be resolved using the attribute being
// validated.
func DifferentFrom(expressions ...path.Expression) *DifferentFromValidator {
return &DifferentFromValidator{
PathExpressions: expressions,
}
}
func (o DifferentFromValidator) ValidateBool(ctx context.Context, req validator.BoolRequest, resp *validator.BoolResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateFloat64(ctx context.Context, req validator.Float64Request, resp *validator.Float64Response) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateInt64(ctx context.Context, req validator.Int64Request, resp *validator.Int64Response) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateList(ctx context.Context, req validator.ListRequest, resp *validator.ListResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateMap(ctx context.Context, req validator.MapRequest, resp *validator.MapResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateNumber(ctx context.Context, req validator.NumberRequest, resp *validator.NumberResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateObject(ctx context.Context, req validator.ObjectRequest, resp *validator.ObjectResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateSet(ctx context.Context, req validator.SetRequest, resp *validator.SetResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}
func (o DifferentFromValidator) ValidateString(ctx context.Context, req validator.StringRequest, resp *validator.StringResponse) {
validateReq := DifferentFromValidatorRequest{
Config: req.Config,
ConfigValue: req.ConfigValue,
Path: req.Path,
PathExpression: req.PathExpression,
}
validateResp := &DifferentFromValidatorResponse{}
o.Validate(ctx, validateReq, validateResp)
resp.Diagnostics.Append(validateResp.Diagnostics...)
}