Micro-service for file storage and processing written in Go
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package storage
import (
"os"
"path/filepath"
"github.com/spf13/afero"
)
type IStorageProvider interface {
StoreRaw(bucketName string, objectName string, data []byte) string
StoreExisting(bucketName string, objectName string, existingFilePath string) string
}
type FileSystemStorageProvider struct {
fileSystem afero.Fs
basePath string
}
func (sp FileSystemStorageProvider) StoreRaw(bucketName string, objectName string, data []byte) string {
directoryPath := filepath.Join(sp.basePath, bucketName)
sp.fileSystem.MkdirAll(directoryPath, os.ModePerm)
filePath := filepath.Join(directoryPath, objectName)
afero.WriteFile(sp.fileSystem, filePath, data, os.ModePerm)
return filePath
}
func (sp FileSystemStorageProvider) StoreExisting(bucketName string, objectName string, existingFilePath string) string {
bytesRead, _ := afero.ReadFile(sp.fileSystem, existingFilePath)
return sp.StoreRaw(bucketName, objectName, bytesRead)
}
func GetFileSystemStorageProvider(basePath string) FileSystemStorageProvider {
wd, _ := os.Getwd()
return FileSystemStorageProvider{
fileSystem: afero.NewBasePathFs(afero.NewOsFs(), filepath.Join(wd, "files")),
basePath: basePath,
}
}
// TODO: Move this out of this file
func GetMemoryStorageProvider() FileSystemStorageProvider {
return FileSystemStorageProvider{
fileSystem: afero.NewBasePathFs(afero.NewMemMapFs(), "/"),
basePath: "/tmp/foo/bar",
}
}