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string_value.go
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string_value.go
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package types
import (
"encoding/json"
"strings"
)
type StringEqualityOption int
const (
IgnoreCase StringEqualityOption = iota
IsPallindrome
)
func String(str string, m Metadata) StringValue {
return &stringValue{
value: str,
BaseAttribute: BaseAttribute{metadata: m},
}
}
func StringDefault(value string, m Metadata) StringValue {
b := String(value, m)
b.(*stringValue).BaseAttribute.metadata.isDefault = true
return b
}
func StringUnresolvable(m Metadata) StringValue {
b := String("", m)
b.(*stringValue).BaseAttribute.metadata.isUnresolvable = true
return b
}
func StringExplicit(value string, m Metadata) StringValue {
b := String(value, m)
b.(*stringValue).BaseAttribute.metadata.isExplicit = true
return b
}
type StringValue interface {
metadataProvider
Value() string
IsEmpty() bool
IsNotEmpty() bool
IsOneOf(values ...string) bool
EqualTo(value string, equalityOptions ...StringEqualityOption) bool
NotEqualTo(value string, equalityOptions ...StringEqualityOption) bool
StartsWith(prefix string, equalityOptions ...StringEqualityOption) bool
EndsWith(suffix string, equalityOptions ...StringEqualityOption) bool
Contains(value string, equalityOptions ...StringEqualityOption) bool
}
type stringValue struct {
BaseAttribute
value string
}
type stringCheckFunc func(string, string) bool
func (v *stringValue) MarshalJSON() ([]byte, error) {
return json.Marshal(v.value)
}
func (s *stringValue) ToRego() interface{} {
return map[string]interface{}{
"filepath": s.metadata.Range().GetFilename(),
"startline": s.metadata.Range().GetStartLine(),
"endline": s.metadata.Range().GetEndLine(),
"managed": s.metadata.isManaged,
"explicit": s.metadata.isExplicit,
"value": s.Value(),
"fskey": CreateFSKey(s.metadata.Range().GetFS()),
"resource": s.metadata.Reference().String(),
}
}
func (s *stringValue) IsOneOf(values ...string) bool {
if s.metadata.isUnresolvable {
return false
}
for _, value := range values {
if value == s.value {
return true
}
}
return false
}
func (s *stringValue) GetMetadata() Metadata {
return s.metadata
}
func (s *stringValue) Value() string {
return s.value
}
func (b *stringValue) GetRawValue() interface{} {
return b.value
}
func (s *stringValue) IsEmpty() bool {
if s.metadata.isUnresolvable {
return false
}
return s.value == ""
}
func (s *stringValue) IsNotEmpty() bool {
if s.metadata.isUnresolvable {
return false
}
return s.value != ""
}
func (s *stringValue) EqualTo(value string, equalityOptions ...StringEqualityOption) bool {
if s.metadata.isUnresolvable {
return false
}
return s.executePredicate(value, func(a, b string) bool { return a == b }, equalityOptions...)
}
func (s *stringValue) NotEqualTo(value string, equalityOptions ...StringEqualityOption) bool {
if s.metadata.isUnresolvable {
return false
}
return !s.EqualTo(value, equalityOptions...)
}
func (s *stringValue) StartsWith(prefix string, equalityOptions ...StringEqualityOption) bool {
if s.metadata.isUnresolvable {
return false
}
return s.executePredicate(prefix, strings.HasPrefix, equalityOptions...)
}
func (s *stringValue) EndsWith(suffix string, equalityOptions ...StringEqualityOption) bool {
if s.metadata.isUnresolvable {
return false
}
return s.executePredicate(suffix, strings.HasSuffix, equalityOptions...)
}
func (s *stringValue) Contains(value string, equalityOptions ...StringEqualityOption) bool {
if s.metadata.isUnresolvable {
return false
}
return s.executePredicate(value, strings.Contains, equalityOptions...)
}
func (s *stringValue) executePredicate(value string, fn stringCheckFunc, equalityOptions ...StringEqualityOption) bool {
subjectString := s.value
searchString := value
for _, eqOpt := range equalityOptions {
switch eqOpt {
case IgnoreCase:
subjectString = strings.ToLower(subjectString)
searchString = strings.ToLower(searchString)
case IsPallindrome:
var result string
for _, v := range subjectString {
result = string(v) + result
}
subjectString = result
}
}
return fn(subjectString, searchString)
}