本文整理汇总了Golang中camlistore/org/pkg/blobref.SeekFetcher类的典型用法代码示例。如果您正苦于以下问题：Golang SeekFetcher类的具体用法？Golang SeekFetcher怎么用？Golang SeekFetcher使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了SeekFetcher类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: NewFileReader
// NewFileReader returns a new FileReader reading the contents of fileBlobRef,
// fetching blobs from fetcher. The fileBlobRef must be of a "bytes" or "file"
// schema blob.
//
// The caller should call Close on the FileReader when done reading.
func NewFileReader(fetcher blobref.SeekFetcher, fileBlobRef *blobref.BlobRef) (*FileReader, error) {
// TODO(bradfitz): make this take a blobref.FetcherAt instead?
// TODO(bradfitz): rename this into bytes reader? but for now it's still
// named FileReader, but can also read a "bytes" schema.
if fileBlobRef == nil {
return nil, errors.New("schema/filereader: NewFileReader blobref was nil")
}
rsc, _, err := fetcher.Fetch(fileBlobRef)
if err != nil {
return nil, fmt.Errorf("schema/filereader: fetching file schema blob: %v", err)
}
defer rsc.Close()
ss, err := ParseSuperset(rsc)
if err != nil {
return nil, fmt.Errorf("schema/filereader: decoding file schema blob: %v", err)
}
if ss.Type != "file" && ss.Type != "bytes" {
return nil, fmt.Errorf("schema/filereader: expected \"file\" or \"bytes\" schema blob, got %q", ss.Type)
}
fr, err := ss.NewFileReader(fetcher)
if err != nil {
return nil, fmt.Errorf("schema/filereader: creating FileReader for %s: %v", fileBlobRef, err)
}
return fr, nil
}示例2: setFromBlobRef
func (ss *Superset) setFromBlobRef(fetcher blobref.SeekFetcher, blobRef *blobref.BlobRef) error {
if blobRef == nil {
return errors.New("schema/filereader: blobref was nil")
}
ss.BlobRef = blobRef
rsc, _, err := fetcher.Fetch(blobRef)
if err != nil {
return fmt.Errorf("schema/filereader: fetching schema blob %s: %v", blobRef, err)
}
if err = json.NewDecoder(rsc).Decode(ss); err != nil {
return fmt.Errorf("schema/filereader: decoding schema blob %s: %v", blobRef, err)
}
return nil
}示例3: NewFileReader
// TODO(bradfitz): make this take a blobref.FetcherAt instead?
// TODO(bradfitz): rename this into bytes reader? but for now it's still
// named FileReader, but can also read a "bytes" schema.
func NewFileReader(fetcher blobref.SeekFetcher, fileBlobRef *blobref.BlobRef) (*FileReader, error) {
if fileBlobRef == nil {
return nil, errors.New("schema/filereader: NewFileReader blobref was nil")
}
ss := new(Superset)
rsc, _, err := fetcher.Fetch(fileBlobRef)
if err != nil {
return nil, fmt.Errorf("schema/filereader: fetching file schema blob: %v", err)
}
if err = json.NewDecoder(rsc).Decode(ss); err != nil {
return nil, fmt.Errorf("schema/filereader: decoding file schema blob: %v", err)
}
if ss.Type != "file" && ss.Type != "bytes" {
return nil, fmt.Errorf("schema/filereader: expected \"file\" or \"bytes\" schema blob, got %q", ss.Type)
}
fr, err := ss.NewFileReader(fetcher)
if err != nil {
return nil, fmt.Errorf("schema/filereader: creating FileReader for %s: %v", fileBlobRef, err)
}
return fr, nil
}