58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
package Configuration
|
|
|
|
import (
|
|
"encoding/json"
|
|
"github.com/SommerEngineering/Ocean/Log"
|
|
"github.com/SommerEngineering/Ocean/Log/Meta"
|
|
"os"
|
|
"path/filepath"
|
|
)
|
|
|
|
// Function to read the configuration file.
|
|
func readConfiguration() {
|
|
if isInit {
|
|
Log.LogFull(senderName, Meta.CategorySYSTEM, Meta.LevelWARN, Meta.SeverityNone, Meta.ImpactNone, Meta.MessageNameINIT, `The configuration package is already init!`)
|
|
return
|
|
} else {
|
|
Log.LogShort(senderName, Meta.CategorySYSTEM, Meta.LevelINFO, Meta.MessageNameCONFIGURATION, `Init of configuration starting.`)
|
|
}
|
|
|
|
// Access to the working directory?
|
|
currentDir, dirError := os.Getwd()
|
|
if dirError != nil {
|
|
panic(`Was not able to read the working directory: ` + dirError.Error())
|
|
return
|
|
}
|
|
|
|
// Access to the configuration file?
|
|
currentPath := filepath.Join(currentDir, filename)
|
|
if _, errFile := os.Stat(currentPath); errFile != nil {
|
|
if os.IsNotExist(errFile) {
|
|
panic(`It was not possible to find the necessary configuration file 'configuration.json' at the application directory.`)
|
|
} else {
|
|
panic(`There was an error while open the configuration: ` + errFile.Error())
|
|
}
|
|
}
|
|
|
|
// Open the file:
|
|
file, fileError := os.Open(currentPath)
|
|
defer file.Close()
|
|
|
|
if fileError != nil {
|
|
panic(`The configuration file is not accessible: ` + fileError.Error())
|
|
return
|
|
}
|
|
|
|
// Try to decode / parse the file:
|
|
decoder := json.NewDecoder(file)
|
|
decError := decoder.Decode(&configuration)
|
|
|
|
if decError != nil {
|
|
panic(`Decoding of the configuration file was not possible: ` + decError.Error())
|
|
}
|
|
|
|
Log.LogShort(senderName, Meta.CategorySYSTEM, Meta.LevelINFO, Meta.MessageNameINIT, `Init of configuration is done.`)
|
|
isInit = true
|
|
return
|
|
}
|