refactor: v2 (#150)

decoders/sflow/format.go

@@ -0,0 +1,16 @@
+package sflow
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/netip"
+)
+
+func (p *Packet) MarshalJSON() ([]byte, error) {
+	return json.Marshal(*p) // this is a trick to avoid having the JSON marshaller defaults to MarshalText
+}
+
+func (p *Packet) MarshalText() ([]byte, error) {
+	agentIP, _ := netip.AddrFromSlice(p.AgentIP)
+	return []byte(fmt.Sprintf("sFlow%d agent:%s seq:%d count:%d", p.Version, agentIP.String(), p.SequenceNumber, p.SamplesCount)), nil
+}