本文整理汇总了Golang中labix/org/v2/mgo.GridFile.GetMeta方法的典型用法代码示例。如果您正苦于以下问题：Golang GridFile.GetMeta方法的具体用法？Golang GridFile.GetMeta怎么用？Golang GridFile.GetMeta使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类labix/org/v2/mgo.GridFile的用法示例。
在下文中一共展示了GridFile.GetMeta方法的1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: Copy
func (s *mongodbStorage) Copy(localName, remoteName string, toRemote bool, checksum, moduleType string) (stat *contester_proto.FileStat, err error) {
ec := tools.ErrorContext("mongodb.Copy")
if toRemote {
stat, err = tools.StatFile(localName, true)
if err != nil {
err = ec.NewError(err, "local.CalculateChecksum")
}
// If file doesn't exist then stat == nil.
if err != nil || stat == nil {
return
}
if checksum != "" && *stat.Checksum != checksum {
return nil, ec.NewError(fmt.Errorf("Checksum mismatch, local %s != %s", stat.Checksum, checksum))
}
checksum = *stat.Checksum
}
var local *os.File
if toRemote {
local, err = os.Open(localName)
} else {
local, err = os.Create(localName)
}
if err != nil {
return nil, ec.NewError(err, "local.Open")
}
defer local.Close()
var remote *mgo.GridFile
if toRemote {
// Remove all files with the same remoteName.
if err = s.GridFS.Remove(remoteName); err != nil {
return nil, ec.NewError(err, "remote.Remove")
}
remote, err = s.GridFS.Create(remoteName)
} else {
remote, err = s.GridFS.Open(remoteName)
}
if err != nil {
return nil, ec.NewError(err, "remote.Open")
}
defer remote.Close()
var source io.ReadCloser
if toRemote {
source = local
} else {
source = remote
var meta fileMetadata
if err = remote.GetMeta(&meta); err != nil {
return nil, ec.NewError(err, "remote.GetMeta")
}
if meta.CompressionType == "ZLIB" {
source, err = zlib.NewReader(source)
if err != nil {
return nil, ec.NewError(err, "zlib.NewReader")
}
}
}
var destination io.WriteCloser
if toRemote {
destination = zlib.NewWriter(remote)
} else {
destination = local
}
size, err := io.Copy(destination, source)
if err != nil {
return nil, ec.NewError(err, "io.Copy")
}
if toRemote {
var meta fileMetadata
meta.OriginalSize = uint64(size)
meta.CompressionType = "ZLIB"
meta.Checksum = *stat.Checksum
meta.ModuleType = moduleType
remote.SetMeta(meta)
}
if err = destination.Close(); err != nil {
return nil, ec.NewError(err, "destination.Close")
}
if err = source.Close(); err != nil {
return nil, ec.NewError(err, "source.Close")
}
if !toRemote {
stat, err = tools.StatFile(localName, true)
if err != nil {
return nil, ec.NewError(err, "StatFile")
}
}
//.........这里部分代码省略.........