Labels parser.

provider/label/parser.go

@@ -0,0 +1,39 @@
+package label
+
+import (
+	"github.com/containous/traefik/config"
+	"github.com/containous/traefik/provider/label/internal"
+)
+
+// Decode Converts the labels to a configuration.
+// labels -> [ node -> node + metadata (type) ] -> element (node)
+func Decode(labels map[string]string) (*config.Configuration, error) {
+	node, err := internal.DecodeToNode(labels)
+	if err != nil {
+		return nil, err
+	}
+
+	conf := &config.Configuration{}
+	err = internal.AddMetadata(conf, node)
+	if err != nil {
+		return nil, err
+	}
+
+	err = internal.Fill(conf, node)
+	if err != nil {
+		return nil, err
+	}
+
+	return conf, nil
+}
+
+// Encode Converts a configuration to labels.
+// element -> node (value) -> label (node)
+func Encode(conf *config.Configuration) (map[string]string, error) {
+	node, err := internal.EncodeToNode(conf)
+	if err != nil {
+		return nil, err
+	}
+
+	return internal.EncodeNode(node), nil
+}