func (o *FileOutput) openFile() (err error) {
basePath := filepath.Dir(o.path)
if err = os.MkdirAll(basePath, o.folderPerm); err != nil {
return fmt.Errorf("Can't create the basepath for the FileOutput plugin: %s", err.Error())
}
if err = plugins.CheckWritePermission(basePath); err != nil {
return
}
o.file, err = os.OpenFile(o.path, os.O_WRONLY|os.O_APPEND|os.O_CREATE, o.perm)
return
}
func (o *WhisperOutput) Init(config interface{}) (err error) {
conf := config.(*WhisperOutputConfig)
globals := o.pConfig.Globals
o.basePath = globals.PrependBaseDir(conf.BasePath)
o.defaultAggMethod = conf.DefaultAggMethod
var intPerm int64
if intPerm, err = strconv.ParseInt(conf.FolderPerm, 8, 32); err != nil {
err = fmt.Errorf("WhisperOutput '%s' can't parse `folder_perm`, ",
"is it an octal integer string?", o.basePath)
return
}
o.folderPerm = os.FileMode(intPerm)
if err = os.MkdirAll(o.basePath, o.folderPerm); err != nil {
return
}
if err = plugins.CheckWritePermission(o.basePath); err != nil {
return
}
if conf.DefaultArchiveInfo == nil {
// 60 seconds per datapoint, 1440 datapoints = 1 day of retention
// 15 minutes per datapoint, 8 datapoints = 2 hours of retention
// 1 hour per datapoint, 7 days of retention
// 12 hours per datapoint, 2 years of retention
conf.DefaultArchiveInfo = [][]uint32{
{0, 60, 1440}, {0, 900, 8}, {0, 3600, 168}, {0, 43200, 1456},
}
}
o.defaultArchiveInfo = make([]whisper.ArchiveInfo, len(conf.DefaultArchiveInfo))
for i, aiSpec := range conf.DefaultArchiveInfo {
if len(aiSpec) != 3 {
err = fmt.Errorf("All default archive info settings must have 3 values.")
return
}
o.defaultArchiveInfo[i] = whisper.ArchiveInfo{aiSpec[0], aiSpec[1], aiSpec[2]}
}
o.dbs = make(map[string]WhisperRunner)
return
}