add router handler & connector

handler/router/metadata.go

@@ -0,0 +1,60 @@
+package router
+
+import (
+	"time"
+
+	"github.com/go-gost/core/ingress"
+	mdata "github.com/go-gost/core/metadata"
+	"github.com/go-gost/core/router"
+	"github.com/go-gost/core/sd"
+	mdutil "github.com/go-gost/x/metadata/util"
+	"github.com/go-gost/x/registry"
+)
+
+const (
+	defaultTTL        = 15 * time.Second
+	defaultBufferSize = 1500
+)
+
+type metadata struct {
+	readTimeout time.Duration
+	bufferSize  int
+
+	entryPoint string
+	ingress    ingress.Ingress
+	sd         sd.SD
+	router     router.Router
+
+	observerPeriod       time.Duration
+	observerResetTraffic bool
+
+	limiterRefreshInterval time.Duration
+	limiterCleanupInterval time.Duration
+}
+
+func (h *routerHandler) parseMetadata(md mdata.Metadata) (err error) {
+	h.md.readTimeout = mdutil.GetDuration(md, "readTimeout")
+	h.md.bufferSize = mdutil.GetInt(md, "router.bufferSize", "bufferSize")
+	if h.md.bufferSize <= 0 {
+		h.md.bufferSize = defaultBufferSize
+	}
+
+	h.md.entryPoint = mdutil.GetString(md, "entrypoint")
+	h.md.ingress = registry.IngressRegistry().Get(mdutil.GetString(md, "ingress"))
+	h.md.sd = registry.SDRegistry().Get(mdutil.GetString(md, "sd"))
+	h.md.router = registry.RouterRegistry().Get(mdutil.GetString(md, "router"))
+
+	h.md.observerPeriod = mdutil.GetDuration(md, "observePeriod", "observer.period", "observer.observePeriod")
+	if h.md.observerPeriod == 0 {
+		h.md.observerPeriod = 5 * time.Second
+	}
+	if h.md.observerPeriod < time.Second {
+		h.md.observerPeriod = time.Second
+	}
+	h.md.observerResetTraffic = mdutil.GetBool(md, "observer.resetTraffic")
+
+	h.md.limiterRefreshInterval = mdutil.GetDuration(md, "limiter.refreshInterval")
+	h.md.limiterCleanupInterval = mdutil.GetDuration(md, "limiter.cleanupInterval")
+
+	return
+}