实现基础的统计指标

pkg/nodeconfigs/node_config.go

@@ -42,7 +42,11 @@ type NodeConfig struct {
 
 	paddedId string
 
+	// firewall
 	firewallPolicies []*firewallconfigs.HTTPFirewallPolicy
+
+	// metrics
+	hasHTTPConnectionMetrics bool
 }
 
 // SharedNodeConfig 取得当前节点配置单例
@@ -144,11 +148,15 @@ func (this *NodeConfig) Init() error {
 	}
 
 	// metric items
+	this.hasHTTPConnectionMetrics = false
 	for _, item := range this.MetricItems {
 		err := item.Init()
 		if err != nil {
 			return err
 		}
+		if item.IsOn && item.HasHTTPConnectionValue() {
+			this.hasHTTPConnectionMetrics = true
+		}
 	}
 
 	return nil
@@ -202,6 +210,11 @@ func (this *NodeConfig) PaddedId() string {
 	return this.paddedId
 }
 
+// HasHTTPConnectionMetrics 是否含有HTTP连接数的指标
+func (this *NodeConfig) HasHTTPConnectionMetrics() bool {
+	return this.hasHTTPConnectionMetrics
+}
+
 // 搜索WAF策略
 func (this *NodeConfig) lookupWeb(web *serverconfigs.HTTPWebConfig) {
 	if web == nil || !web.IsOn {