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

server/pkg/envoy/resource/shaper.go

@@ -0,0 +1,64 @@
+package resource
+
+import "fmt"
+
+type (
+	shaper interface {
+		Shape([]Interface) ([]Interface, error)
+	}
+)
+
+// Shape shapes ResourceDatasets based on their correlated Template
+//
+// During the shaping step, no data is removed, nor added to the original resource slice.
+// The shapers are ran in the same order they were provided.
+func Shape(rr []Interface, ss ...shaper) ([]Interface, error) {
+	ii := make([]Interface, 0, int(len(rr)/2))
+
+	// Firstly handle any resource shaping
+	for _, s := range ss {
+		sdd, err := s.Shape(rr)
+		if err != nil {
+			return nil, err
+		}
+		ii = append(ii, sdd...)
+	}
+
+	// Cleanup the final shaped resource slice.
+	// @todo make this cleaner!!1!'
+	//
+	// After this point, all of the data should be ready for further processing.
+	for _, r := range rr {
+		if _, ok := r.(*ComposeRecordTemplate); ok {
+			continue
+		}
+		if _, ok := r.(*ResourceDataset); ok {
+			continue
+		}
+
+		ii = append(ii, r)
+	}
+
+	return ii, nil
+}
+
+// findResourceDataset finds and returns the first dataset that matches the
+// provided identifiers.
+func findResourceDataset(rr []Interface, ii Identifiers) *ResourceDataset {
+	for _, r := range rr {
+		genR, ok := r.(*ResourceDataset)
+		if !ok {
+			continue
+		}
+		if !genR.Identifiers().HasAny(ii) {
+			continue
+		}
+
+		return genR
+	}
+	return nil
+}
+
+func genericSourceErrUnresolved(ii Identifiers) error {
+	return fmt.Errorf("generic source unresolved %v", ii.StringSlice())
+}