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package hdfs
import (
"os"
"time"
hdfs "github.com/colinmarc/hdfs/v2/internal/protocol/hadoop_hdfs"
"google.golang.org/protobuf/proto"
)
// Chmod changes the mode of the named file to mode.
func (c *Client) Chmod(name string, perm os.FileMode) error {
req := &hdfs.SetPermissionRequestProto{
Src: proto.String(name),
Permission: &hdfs.FsPermissionProto{Perm: proto.Uint32(uint32(perm))},
}
resp := &hdfs.SetPermissionResponseProto{}
err := c.namenode.Execute("setPermission", req, resp)
if err != nil {
return &os.PathError{"chmod", name, interpretException(err)}
}
return nil
}
// Chown changes the user and group of the file. Unlike os.Chown, this takes
// a string username and group (since that's what HDFS uses.)
//
// If an empty string is passed for user or group, that field will not be
// changed remotely.
func (c *Client) Chown(name string, user, group string) error {
req := &hdfs.SetOwnerRequestProto{
Src: proto.String(name),
Username: proto.String(user),
Groupname: proto.String(group),
}
resp := &hdfs.SetOwnerResponseProto{}
err := c.namenode.Execute("setOwner", req, resp)
if err != nil {
return &os.PathError{"chown", name, interpretException(err)}
}
return nil
}
// Chtimes changes the access and modification times of the named file.
func (c *Client) Chtimes(name string, atime time.Time, mtime time.Time) error {
req := &hdfs.SetTimesRequestProto{
Src: proto.String(name),
Mtime: proto.Uint64(uint64(mtime.Unix()) * 1000),
Atime: proto.Uint64(uint64(atime.Unix()) * 1000),
}
resp := &hdfs.SetTimesResponseProto{}
err := c.namenode.Execute("setTimes", req, resp)
if err != nil {
return &os.PathError{"chtimes", name, interpretException(err)}
}
return nil
}
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