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Working in memory donut driver

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This commit is contained in:
Frederick F. Kautz IV
2015-03-15 00:41:06 -07:00
parent 15d5e74837
commit 3e453a394a
5 changed files with 193 additions and 20 deletions
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101
pkg/donutbox/donutmem/donutmem.go
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@@ -39,11 +39,19 @@ func NewDonutMem() donutbox.DonutBox {
// system operations
func (donutMem donutMem) ListBuckets() ([]string, error) {
return nil, errors.New("Not Implemented")
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
buckets := make([]string, 0)
for k, _ := range donutMem.buckets {
buckets = append(buckets, k)
}
return buckets, nil
}
// bucket operations
func (donutMem donutMem) CreateBucket(b string) error {
donutMem.lock.Lock()
defer donutMem.lock.Unlock()
b = strings.ToLower(b)
if _, ok := donutMem.buckets[b]; ok {
return errors.New("Bucket Exists")
@@ -60,16 +68,53 @@ func (donutMem donutMem) CreateBucket(b string) error {
return nil
}
func (donutMem donutMem) ListObjects(bucket, prefix string) ([]string, error) {
return nil, errors.New("Not Implemented")
func (donutMem donutMem) ListObjectsInBucket(bucketKey, prefixKey string) ([]string, error) {
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
if curBucket, ok := donutMem.buckets[bucketKey]; ok {
curBucket.lock.RLock()
defer curBucket.lock.RUnlock()
objects := make([]string, 0)
for objectKey, _ := range curBucket.objects {
if strings.HasPrefix(objectKey, prefixKey) {
objects = append(objects, objectKey)
}
}
return objects, nil
}
return nil, errors.New("Bucket does not exist")
}
func (donutMem donutMem) GetBucketMetadata(bucket, name string) (io.Reader, error) {
return nil, errors.New("Not Implemented")
func (donutMem donutMem) GetBucketMetadata(bucketKey string) (map[string]string, error) {
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
if curBucket, ok := donutMem.buckets[bucketKey]; ok {
curBucket.lock.RLock()
defer curBucket.lock.RUnlock()
result := make(map[string]string)
for k, v := range curBucket.metadata {
result[k] = v
}
return result, nil
}
return nil, errors.New("Bucket not found")
}
func (donutMem donutMem) SetBucketMetadata(bucket, name string, metadata io.Reader) error {
return errors.New("Not Implemented")
func (donutMem donutMem) SetBucketMetadata(bucketKey string, metadata map[string]string) error {
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
if curBucket, ok := donutMem.buckets[bucketKey]; ok {
curBucket.lock.Lock()
defer curBucket.lock.Unlock()
newMetadata := make(map[string]string)
for k, v := range metadata {
newMetadata[k] = v
}
curBucket.metadata = newMetadata
return nil
}
return errors.New("Bucket not found")
}
// object operations
@@ -137,10 +182,44 @@ func (donutMem donutMem) GetObjectReader(bucket, key string, column int) (io.Rea
return nil, errors.New("Bucket not found")
}
func (donutMem donutMem) StoreObjectMetadata(bucket, object, name string, reader io.Reader) error {
return errors.New("Not Implemented")
func (donutMem donutMem) SetObjectMetadata(bucketKey, objectKey string, metadata map[string]string) error {
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
if curBucket, ok := donutMem.buckets[bucketKey]; ok {
curBucket.lock.RLock()
defer curBucket.lock.RUnlock()
if curObject, ok := curBucket.objects[objectKey]; ok {
curObject.lock.Lock()
defer curObject.lock.Unlock()
newMetadata := make(map[string]string)
for k, v := range metadata {
newMetadata[k] = v
}
curObject.metadata = newMetadata
return nil
}
return errors.New("Object not found")
}
return errors.New("Bucket not found")
}
func (donutMem donutMem) GetObjectMetadata(bucket, object, name string) (io.Reader, error) {
return nil, errors.New("Not Implemented")
func (donutMem donutMem) GetObjectMetadata(bucketKey, objectKey string) (map[string]string, error) {
donutMem.lock.RLock()
defer donutMem.lock.RUnlock()
if curBucket, ok := donutMem.buckets[bucketKey]; ok {
curBucket.lock.RLock()
defer curBucket.lock.RUnlock()
if curObject, ok := curBucket.objects[objectKey]; ok {
curObject.lock.RLock()
defer curObject.lock.RUnlock()
result := make(map[string]string)
for k, v := range curObject.metadata {
result[k] = v
}
return result, nil
}
return nil, errors.New("Object not found")
}
return nil, errors.New("Bucket not found")
}