snapshot of https://github.com/cortezaproject/corteza.git (2024.9.x, 2026-09-18; blobs > 131072B omitted)

server/federation/service/mapper.go

@@ -0,0 +1,54 @@
+package service
+
+import (
+	ct "github.com/cortezaproject/corteza/server/compose/types"
+	"github.com/cortezaproject/corteza/server/federation/types"
+)
+
+type (
+	Mapper struct{}
+)
+
+// Merge copies the values from originating structure
+// do the destination
+//
+// mostly, there will be less mapped fields on the destination
+// side, so start looping from here
+func (m *Mapper) Merge(in *ct.RecordValueSet, out *ct.RecordValueSet, mappings *types.ModuleFieldMappingSet) {
+	var match *types.ModuleFieldMapping
+
+	for _, destVal := range *out {
+		// preset the value, since we're working with
+		// a pointer to an existing structure, could be some leftovers
+		destVal.Value = ""
+
+		// find origin field
+		if match, _ = mappings.FindByName(destVal.Name, types.ModuleFieldMappingSetFindTypeDestination); match == nil {
+			continue
+		}
+
+		// use the found origin, so the mapping is correct
+		for _, origVal := range *in {
+			if origVal.Name == match.Origin.Name {
+				destVal.Value = origVal.Value
+				break
+			}
+		}
+	}
+
+	return
+}
+
+// Prepare creates a set of Records to be used later
+// when the fields will be mapped via Merge()
+func (m *Mapper) Prepare(mappings types.ModuleFieldMappingSet) (out ct.RecordValueSet) {
+	for _, mm := range mappings {
+		rv := &ct.RecordValue{
+			Name:  mm.Destination.Name,
+			Value: "",
+		}
+		out = append(out, rv)
+	}
+
+	return
+}