工作流

pkg/flow_engine/manifest/manifest.go

@@ -0,0 +1,62 @@
+package manifest
+
+import (
+	"encoding/json"
+	"github.com/sirupsen/logrus"
+)
+
+type Node struct {
+	Type       string                 `json:"type" yaml:"type"`
+	Id         string                 `json:"id" yaml:"id"`
+	Properties map[string]interface{} `json:"properties" yaml:"properties"` //debugMode
+}
+
+type Edge struct {
+	SourceNodeId string                 `json:"sourceNodeId" yaml:"sourceNodeId"`
+	TargetNodeId string                 `json:"targetNodeId" yaml:"targetNodeId"`
+	Type         string                 `json:"type" yaml:"type"`             //success or fail
+	Properties   map[string]interface{} `json:"properties" yaml:"properties"` //debugMode
+}
+
+type Manifest struct {
+	FirstRuleNodeId string `json:"firstRuleNodeId" yaml:"firstRuleNodeId"`
+	Nodes           []Node `json:"nodes" yaml:"nodes"`
+	Edges           []Edge `json:"edges" yaml:"edges"`
+}
+
+func New(data []byte) (*Manifest, error) {
+	firstRuleNodeId := ""
+	manifest := make(map[string]interface{})
+	if err := json.Unmarshal(data, &manifest); err != nil {
+		logrus.WithError(err).Errorf("invalid node chain manifest file")
+		return nil, err
+	}
+	nodes := make([]Node, 0)
+	for _, mn := range manifest["nodes"].([]interface{}) {
+		node := mn.(map[string]interface{})
+		if node["type"].(string) == "InputNode" {
+			firstRuleNodeId = node["id"].(string)
+		}
+		nodes = append(nodes, Node{
+			Id:         node["id"].(string),
+			Type:       node["type"].(string),
+			Properties: node["properties"].(map[string]interface{}),
+		})
+	}
+	edges := make([]Edge, 0)
+	for _, en := range manifest["edges"].([]interface{}) {
+		edge := en.(map[string]interface{})
+		edges = append(edges, Edge{
+			Type:         edge["type"].(string),
+			Properties:   edge["properties"].(map[string]interface{}),
+			SourceNodeId: edge["sourceNodeId"].(string),
+			TargetNodeId: edge["targetNodeId"].(string),
+		})
+	}
+	m := &Manifest{
+		FirstRuleNodeId: firstRuleNodeId,
+		Nodes:           nodes,
+		Edges:           edges,
+	}
+	return m, nil
+}

pkg/flow_engine/manifest/manifest_sample.json

@@ -0,0 +1,127 @@
+{
+  "nodes": [
+    {
+      "id": "3b6b8df4-445f-4e70-9674-f7aa486b3d81",
+      "type": "InputNode",
+      "x": 280,
+      "y": 280,
+      "properties": {
+        "icon": "/src/assets/icon_module/svg/start.svg",
+        "debugMode": false
+      },
+      "zIndex": 1002,
+      "text": {
+        "x": 290,
+        "y": 280,
+        "value": "输入"
+      }
+    },
+    {
+      "id": "45afb241-1977-4cbf-8af3-c12844d5666b",
+      "type": "DelayNode",
+      "x": 600,
+      "y": 160,
+      "properties": {
+        "icon": "/src/assets/icon_module/svg/function.svg",
+        "debugMode": false
+      },
+      "zIndex": 1004,
+      "text": {
+        "x": 610,
+        "y": 160,
+        "value": "延迟"
+      }
+    },
+    {
+      "id": "95047b03-e966-4685-b625-3cea27415706",
+      "type": "SwitchNode",
+      "x": 600,
+      "y": 460,
+      "properties": {
+        "icon": "/src/assets/icon_module/svg/switch.svg",
+        "debugMode": false,
+        "scripts": "return {\n    msg: msg,\n    metadata: metadata,\n    msgType: msgType\n};"
+      },
+      "zIndex": 1006,
+      "text": {
+        "x": 610,
+        "y": 460,
+        "value": "分流"
+      }
+    }
+  ],
+  "edges": [
+    {
+      "id": "fde7f2de-cc0f-467d-a614-4505f058dc2a",
+      "type": "bezier-link",
+      "sourceNodeId": "3b6b8df4-445f-4e70-9674-f7aa486b3d81",
+      "targetNodeId": "45afb241-1977-4cbf-8af3-c12844d5666b",
+      "startPoint": {
+        "x": 340,
+        "y": 280
+      },
+      "endPoint": {
+        "x": 540,
+        "y": 160
+      },
+      "properties": {
+        "type": "Success"
+      },
+      "zIndex": 1007,
+      "pointsList": [
+        {
+          "x": 340,
+          "y": 280
+        },
+        {
+          "x": 440,
+          "y": 280
+        },
+        {
+          "x": 440,
+          "y": 160
+        },
+        {
+          "x": 540,
+          "y": 160
+        }
+      ]
+    },
+    {
+      "id": "986878cc-a9be-42b5-afc0-6c0a169c4e4d",
+      "type": "bezier-link",
+      "sourceNodeId": "3b6b8df4-445f-4e70-9674-f7aa486b3d81",
+      "targetNodeId": "95047b03-e966-4685-b625-3cea27415706",
+      "startPoint": {
+        "x": 340,
+        "y": 280
+      },
+      "endPoint": {
+        "x": 540,
+        "y": 460
+      },
+      "properties": {
+        "type": "Failure"
+      },
+      "zIndex": 1008,
+      "pointsList": [
+        {
+          "x": 340,
+          "y": 280
+        },
+        {
+          "x": 440,
+          "y": 280
+        },
+        {
+          "x": 440,
+          "y": 460
+        },
+        {
+          "x": 540,
+          "y": 460
+        }
+      ]
+    }
+  ]
+}