config

broker/config.go

@@ -0,0 +1,42 @@
+package broker
+
+import (
+	"encoding/json"
+	"errors"
+	"io/ioutil"
+
+	"github.com/prometheus/common/log"
+)
+
+const (
+	CONFIGFILE = "broker.config"
+)
+
+type Config struct {
+	Host string `json:"host"`
+	Port string `json:"port"`
+}
+
+func LoadConfig() (*Config, error) {
+	content, err := ioutil.ReadFile(CONFIGFILE)
+	if err != nil {
+		log.Error("Read config file error: ", err)
+		return nil, err
+	}
+	var info Config
+	err = json.Unmarshal(content, &info)
+	if err != nil {
+		log.Error("Unmarshal config file error: ", err)
+		return nil, err
+	}
+
+	if info.Port != "" {
+		if info.Host == "" {
+			info.Host = "0.0.0.0"
+		}
+	} else {
+		return nil, errors.New("Listen port nil")
+	}
+
+	return &info, nil
+}