/
mappingref.go
47 lines (36 loc) · 1.1 KB
/
mappingref.go
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package ref
import (
"errors"
"strings"
"github.com/TIBCOSoftware/flogo-lib/core/data"
"github.com/TIBCOSoftware/flogo-lib/logger"
)
var log = logger.GetLogger("mapping-string")
type MappingRef struct {
ref string
}
func NewMappingRef(ref string) *MappingRef {
//Compatible TriggerData, the $TriggerData might in function or expression
if strings.Index(ref, "$TriggerData") >= 0 {
ref = strings.Replace(ref, "$TriggerData", "$flow", -1)
}
return &MappingRef{ref: ref}
}
func (m *MappingRef) GetRef() string {
return m.ref
}
func (m *MappingRef) Eval(inputScope data.Scope, resovler data.Resolver) (interface{}, error) {
log.Debugf("Eval mapping field %s", m.ref)
if inputScope == nil {
return nil, errors.New("Input scope cannot nil while eval mapping ref")
}
value, err := m.GetValue(inputScope, resovler)
if err != nil {
log.Errorf("Get From from ref error %+v", err)
}
log.Debugf("Eval mapping field result: %+v", value)
return value, err
}
func (m *MappingRef) GetValue(inputScope data.Scope, resovler data.Resolver) (interface{}, error) {
return resovler.Resolve(m.ref, inputScope)
}