feat(tracing): Start to implement tracing system

tracing/exporter/jaeger/config.go

@@ -0,0 +1,23 @@
+package jaeger
+
+import (
+	"github.com/asaskevich/govalidator"
+	"github.com/juju/errors"
+)
+
+// ConfigStruct is the configuration for Jaeger Provider.
+type ConfigStruct struct {
+	URL string `yaml:"url"`
+}
+
+// IsValid will check that the Jaeger configuration is valid.
+func (c *ConfigStruct) IsValid() error {
+
+	if c.URL == "" {
+		return errors.NotValidf("URL is empty in Jaeger configuration")
+	} else if isValid := govalidator.IsURL(c.URL); !isValid {
+		return errors.NotValidf("URL is invalid in Jaeger configuration")
+	}
+
+	return nil
+}

tracing/exporter/zipkin/config.go

@@ -0,0 +1,23 @@
+package zipkin
+
+import (
+	"github.com/asaskevich/govalidator"
+	"github.com/juju/errors"
+)
+
+// ConfigStruct is the configuration for Zipkin Provider.
+type ConfigStruct struct {
+	URL string `yaml:"url"`
+}
+
+// IsValid will check that the Zipkin configuration is valid.
+func (c *ConfigStruct) IsValid() error {
+
+	if c.URL == "" {
+		return errors.NotValidf("URL is empty in Zipkin configuration")
+	} else if isValid := govalidator.IsURL(c.URL); !isValid {
+		return errors.NotValidf("URL is invalid in Zipkin configuration")
+	}
+
+	return nil
+}