规则链添加RPC请求，及响应处理

pkg/rule_engine/nodes/action_rpc_respond_node.go

@@ -0,0 +1,50 @@
+package nodes
+
+import (
+	"pandax/pkg/global"
+	"pandax/pkg/mqtt"
+	"pandax/pkg/rule_engine/message"
+)
+
+type rpcRespondNode struct {
+	bareNode
+	RequestId int `json:"requestId"`
+}
+
+type rpcRespondFactory struct{}
+
+func (f rpcRespondFactory) Name() string     { return "RpcRespondNode" }
+func (f rpcRespondFactory) Category() string { return NODE_CATEGORY_ACTION }
+func (f rpcRespondFactory) Labels() []string { return []string{"Success", "Failure"} }
+func (f rpcRespondFactory) Create(id string, meta Metadata) (Node, error) {
+	node := &rpcRespondNode{
+		bareNode: newBareNode(f.Name(), id, meta, f.Labels()),
+	}
+	return decodePath(meta, node)
+}
+
+func (n *rpcRespondNode) Handle(msg message.Message) error {
+	successLableNode := n.GetLinkedNode("Success")
+	failureLableNode := n.GetLinkedNode("Failure")
+	RequestId := n.RequestId
+	if RequestId == 0 {
+		RequestId = int(msg.GetMetadata().GetKeyValue("requestId").(float64))
+	}
+	var datas = mqtt.RpcPayload{
+		Method: msg.GetMsg()["method"].(string),
+		Params: msg.GetMsg()["params"],
+	}
+	rpc := &mqtt.RpcRequest{Client: global.MqttClient, RequestId: RequestId}
+	err := rpc.RespondTpc(datas)
+	if err != nil {
+		if failureLableNode != nil {
+			return failureLableNode.Handle(msg)
+		} else {
+			return err
+		}
+	}
+	if successLableNode != nil {
+		return successLableNode.Handle(msg)
+	}
+	return nil
+}