Balance

extensions/label/label.go

@@ -0,0 +1,57 @@
+package label
+
+func BlankMetadata() *Metadata {
+	return &Metadata{
+		Labels: []*Label{},
+	}
+}
+
+func (m *Metadata) MatchLabel(expectLabel *Label) bool {
+	for _, l := range m.GetLabels() {
+		if l.Value == expectLabel.Value && l.Key == expectLabel.Key {
+			return true
+		}
+	}
+	return false
+}
+
+func (m *Metadata) GetLabelByKey(key string) *Label {
+	for _, l := range m.GetLabels() {
+		if l.Key == key {
+			return l
+		}
+	}
+	return nil
+}
+
+func (m *Metadata) GetLabelsByKey(key string) []*Label {
+	var labels []*Label
+	for _, l := range m.GetLabels() {
+		if l.Key == key {
+			labels = append(labels, l)
+		}
+	}
+	return labels
+}
+
+func (m *Metadata) RemoveLabel(expectLabel *Label) bool {
+	var (
+		i int
+		l *Label
+	)
+	for i, l = range m.GetLabels() {
+		if l.Key == expectLabel.Key && l.Value == expectLabel.Value {
+			break
+		}
+	}
+	m.Labels = append(m.Labels[i:], m.Labels[i+1:]...)
+	return false
+}
+
+func (m *Metadata) AddLabel(newLabel *Label) error {
+	if err := newLabel.Validate(); err != nil {
+		return err
+	}
+	m.Labels = append(m.Labels, newLabel)
+	return nil
+}

extensions/label/label.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package extensions.label;
+
+option go_package = "github.com/hyperledger-labs/cckit/extensions/label";
+
+import "mwitkow/go-proto-validators/validator.proto";
+
+// label - container for name/value content
+message Label {
+  string key = 1 [(validator.field) = {length_gt: 1}];
+  string value = 2 [(validator.field) = {length_gt: 1}];
+}
+
+// Metadata - type for integrate to other objects
+message Metadata {
+  repeated Label labels = 1;
+}

extensions/label/label.swagger.json

@@ -0,0 +1,49 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "label/label.proto",
+    "version": "version not set"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {},
+  "definitions": {
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "type_url": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "format": "byte"
+        }
+      }
+    },
+    "runtimeError": {
+      "type": "object",
+      "properties": {
+        "error": {
+          "type": "string"
+        },
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    }
+  }
+}