mirror of
https://github.com/minio/minio.git
synced 2024-12-29 00:23:21 -05:00
123 lines
3.1 KiB
Go
123 lines
3.1 KiB
Go
package inmemory
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/sha256"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"strings"
|
|
"time"
|
|
|
|
mstorage "github.com/minio-io/minio/pkg/storage"
|
|
)
|
|
|
|
type Storage struct {
|
|
bucketdata map[string]storedBucket
|
|
objectdata map[string]storedObject
|
|
}
|
|
|
|
type storedBucket struct {
|
|
metadata mstorage.BucketMetadata
|
|
// owner string // TODO
|
|
// id string // TODO
|
|
}
|
|
|
|
type storedObject struct {
|
|
metadata mstorage.ObjectMetadata
|
|
data []byte
|
|
}
|
|
|
|
func (storage *Storage) CopyObjectToWriter(w io.Writer, bucket string, object string) (int64, error) {
|
|
// TODO synchronize access
|
|
// get object
|
|
key := bucket + ":" + object
|
|
if val, ok := storage.objectdata[key]; ok {
|
|
objectBuffer := bytes.NewBuffer(val.data)
|
|
written, err := io.Copy(w, objectBuffer)
|
|
return written, err
|
|
} else {
|
|
return 0, mstorage.ObjectNotFound{Bucket: bucket, Path: object}
|
|
}
|
|
}
|
|
|
|
func (storage *Storage) StoreObject(bucket string, key string, data io.Reader) error {
|
|
objectKey := bucket + ":" + key
|
|
if _, ok := storage.objectdata[objectKey]; ok == true {
|
|
return mstorage.ObjectExists{Bucket: bucket, Key: key}
|
|
}
|
|
var bytesBuffer bytes.Buffer
|
|
newObject := storedObject{}
|
|
if _, ok := io.Copy(&bytesBuffer, data); ok == nil {
|
|
size := bytesBuffer.Len()
|
|
etag := fmt.Sprintf("%x", sha256.Sum256(bytesBuffer.Bytes()))
|
|
newObject.metadata = mstorage.ObjectMetadata{
|
|
Key: key,
|
|
SecCreated: time.Now().Unix(),
|
|
Size: size,
|
|
ETag: etag,
|
|
}
|
|
newObject.data = bytesBuffer.Bytes()
|
|
}
|
|
storage.objectdata[objectKey] = newObject
|
|
return nil
|
|
}
|
|
|
|
func (storage *Storage) StoreBucket(bucketName string) error {
|
|
if !mstorage.IsValidBucket(bucketName) {
|
|
return mstorage.BucketNameInvalid{Bucket: bucketName}
|
|
}
|
|
|
|
if _, ok := storage.bucketdata[bucketName]; ok == true {
|
|
return mstorage.BucketExists{Bucket: bucketName}
|
|
}
|
|
newBucket := storedBucket{}
|
|
newBucket.metadata = mstorage.BucketMetadata{
|
|
Name: bucketName,
|
|
Created: time.Now().Unix(),
|
|
}
|
|
log.Println(bucketName)
|
|
storage.bucketdata[bucketName] = newBucket
|
|
return nil
|
|
}
|
|
|
|
func (storage *Storage) ListObjects(bucket, prefix string, count int) []mstorage.ObjectMetadata {
|
|
// TODO prefix and count handling
|
|
var results []mstorage.ObjectMetadata
|
|
for key, object := range storage.objectdata {
|
|
if strings.HasPrefix(key, bucket+":") {
|
|
results = append(results, object.metadata)
|
|
}
|
|
}
|
|
return results
|
|
}
|
|
|
|
func (storage *Storage) ListBuckets(prefix string) []mstorage.BucketMetadata {
|
|
// TODO prefix handling
|
|
var results []mstorage.BucketMetadata
|
|
for _, bucket := range storage.bucketdata {
|
|
results = append(results, bucket.metadata)
|
|
}
|
|
return results
|
|
}
|
|
|
|
func Start() (chan<- string, <-chan error, *Storage) {
|
|
ctrlChannel := make(chan string)
|
|
errorChannel := make(chan error)
|
|
go start(ctrlChannel, errorChannel)
|
|
return ctrlChannel, errorChannel, &Storage{
|
|
bucketdata: make(map[string]storedBucket),
|
|
objectdata: make(map[string]storedObject),
|
|
}
|
|
}
|
|
|
|
func start(ctrlChannel <-chan string, errorChannel chan<- error) {
|
|
close(errorChannel)
|
|
}
|
|
|
|
func (storage *Storage) GetObjectMetadata(bucket, key string) mstorage.ObjectMetadata {
|
|
objectKey := bucket + ":" + key
|
|
|
|
return storage.objectdata[objectKey].metadata
|
|
}
|