func LoadPackages(configFile string) {
data, err := ioutil.ReadFile(configFile)
if err != nil {
logger.Errorf("Error while reading config file %s: %s", configFile, err)
}
switch path.Ext(configFile) {
case ".json":
// Compact JSON to make it easier to extract JSON per package
var buf bytes.Buffer
err = json.Compact(&buf, data)
if err != nil {
logger.Errorf("Error in JSON config file %s: %s", configFile, err)
}
data = buf.Bytes()
// Unmarshal packages /*in given order*/
for _, pkg := range packages {
// Extract JSON only for this package
key := []byte(`"` + pkg.Name() + `":{`)
begin := bytes.Index(data, key)
if begin != -1 {
begin += len(key) - 1
end := 0
braceCounter := 0
for i := begin; i < len(data); i++ {
switch data[i] {
case '{':
braceCounter++
case '}':
braceCounter--
}
if braceCounter == 0 {
end = i + 1
break
}
}
err = json.Unmarshal(data[begin:end], pkg)
if err != nil {
logger.Errorf("Error while unmarshalling JSON from config file %s: %s", configFile, err)
}
}
err := pkg.Init()
if err != nil {
logger.Errorf("Error while initializing package %s: %s", pkg.Name(), err)
} else {
logger.Info("module [", pkg.Name(), "] load success")
}
}
default:
panic("Unsupported config file: " + configFile)
}
}
func ClosePackages() {
for _, pkg := range packages {
err := pkg.Close()
if err != nil {
logger.Errorf("Error while closing package %s: %s", pkg.Name(), err)
}
}
}