some code optimizations

weed/s3api/s3_constants/s3_config.go

@@ -0,0 +1,18 @@
+package s3_constants
+
+import (
+	"strings"
+)
+
+var (
+	CircuitBreakerConfigDir  = "/etc/s3"
+	CircuitBreakerConfigFile = "circuit_breaker.json"
+	AllowedActions           = []string{ACTION_READ, ACTION_WRITE, ACTION_LIST, ACTION_TAGGING, ACTION_ADMIN}
+	LimitTypeCount           = "count"
+	LimitTypeBytes           = "bytes"
+	Separator                = ":"
+)
+
+func Concat(elements ...string) string {
+	return strings.Join(elements, Separator)
+}