func (m schemaMap) validateConflictingAttributes(
k string,
schema *Schema,
c *terraform.ResourceConfig) error {
if len(schema.ConflictsWith) == 0 {
return nil
}
for _, conflicting_key := range schema.ConflictsWith {
if value, ok := c.Get(conflicting_key); ok {
return fmt.Errorf(
"%q: conflicts with %s (%#v)", k, conflicting_key, value)
}
}
return nil
}
func (m schemaMap) validateObject(
k string,
schema map[string]*Schema,
c *terraform.ResourceConfig) ([]string, []error) {
raw, _ := c.GetRaw(k)
if _, ok := raw.(map[string]interface{}); !ok {
return nil, []error{fmt.Errorf(
"%s: expected object, got %s",
k, reflect.ValueOf(raw).Kind())}
}
var ws []string
var es []error
for subK, s := range schema {
key := subK
if k != "" {
key = fmt.Sprintf("%s.%s", k, subK)
}
ws2, es2 := m.validate(key, s, c)
if len(ws2) > 0 {
ws = append(ws, ws2...)
}
if len(es2) > 0 {
es = append(es, es2...)
}
}
// Detect any extra/unknown keys and report those as errors.
if m, ok := raw.(map[string]interface{}); ok {
for subk, _ := range m {
if _, ok := schema[subk]; !ok {
es = append(es, fmt.Errorf(
"%s: invalid or unknown key: %s", k, subk))
}
}
}
return ws, es
}
func (m schemaMap) validate(
k string,
schema *Schema,
c *terraform.ResourceConfig) ([]string, []error) {
raw, ok := c.Get(k)
if !ok && schema.DefaultFunc != nil {
// We have a dynamic default. Check if we have a value.
var err error
raw, err = schema.DefaultFunc()
if err != nil {
return nil, []error{fmt.Errorf(
"%q, error loading default: %s", k, err)}
}
// We're okay as long as we had a value set
ok = raw != nil
}
if !ok {
if schema.Required {
return nil, []error{fmt.Errorf(
"%q: required field is not set", k)}
}
return nil, nil
}
if !schema.Required && !schema.Optional {
// This is a computed-only field
return nil, []error{fmt.Errorf(
"%q: this field cannot be set", k)}
}
err := m.validateConflictingAttributes(k, schema, c)
if err != nil {
return nil, []error{err}
}
return m.validateType(k, raw, schema, c)
}
func (m schemaMap) validatePrimitive(
k string,
raw interface{},
schema *Schema,
c *terraform.ResourceConfig) ([]string, []error) {
// Catch if the user gave a complex type where a primitive was
// expected, so we can return a friendly error message that
// doesn't contain Go type system terminology.
switch reflect.ValueOf(raw).Type().Kind() {
case reflect.Slice:
return nil, []error{
fmt.Errorf("%s must be a single value, not a list", k),
}
case reflect.Map:
return nil, []error{
fmt.Errorf("%s must be a single value, not a map", k),
}
default: // ok
}
if c.IsComputed(k) {
// If the key is being computed, then it is not an error as
// long as it's not a slice or map.
return nil, nil
}
var decoded interface{}
switch schema.Type {
case TypeBool:
// Verify that we can parse this as the correct type
var n bool
if err := mapstructure.WeakDecode(raw, &n); err != nil {
return nil, []error{err}
}
decoded = n
case TypeInt:
// Verify that we can parse this as an int
var n int
if err := mapstructure.WeakDecode(raw, &n); err != nil {
return nil, []error{err}
}
decoded = n
case TypeFloat:
// Verify that we can parse this as an int
var n float64
if err := mapstructure.WeakDecode(raw, &n); err != nil {
return nil, []error{err}
}
decoded = n
case TypeString:
// Verify that we can parse this as a string
var n string
if err := mapstructure.WeakDecode(raw, &n); err != nil {
return nil, []error{err}
}
decoded = n
default:
panic(fmt.Sprintf("Unknown validation type: %#v", schema.Type))
}
if schema.ValidateFunc != nil {
return schema.ValidateFunc(decoded, k)
}
return nil, nil
}