规则引擎

pkg/rule_engine/nodes/input_node.go

@@ -0,0 +1,35 @@
+package nodes
+
+import (
+	"github.com/sirupsen/logrus"
+	"pandax/pkg/rule_engine/message"
+)
+
+const InputNodeName = "InputNode"
+
+type inputNode struct {
+	bareNode
+}
+
+type inputNodeFactory struct{}
+
+func (f inputNodeFactory) Name() string     { return "InputNode" }
+func (f inputNodeFactory) Category() string { return NODE_CATEGORY_OTHERS }
+
+func (f inputNodeFactory) Create(id string, meta Metadata) (Node, error) {
+	labels := []string{}
+	node := &inputNode{
+		bareNode: newBareNode(InputNodeName, id, meta, labels),
+	}
+	return node, nil
+}
+
+func (n *inputNode) Handle(msg message.Message) error {
+	logrus.Infof("%s handle message '%s'", n.Name(), msg.GetType())
+
+	nodes := n.GetLinkedNodes()
+	for _, node := range nodes {
+		return node.Handle(msg)
+	}
+	return nil
+}