Struct hdrs::Metadata

pub struct Metadata { /* private fields */ }

Metadata of a path.

Implementations

impl Metadata

pub fn path(&self) -> &str

the path of the file, like /path/to/file

Notes

Hadoop has restrictions of path name:

• A Path is comprised of Path elements separated by “/”.
• A path element is a unicode string of 1 or more characters.
• Path element MUST NOT include the characters “:” or “/”.
• Path element SHOULD NOT include characters of ASCII/UTF-8 value 0-31 .
• Path element MUST NOT be “.” or “..”
• Note also that the Azure blob store documents say that paths SHOULD NOT use a trailing “.” (as their .NET URI class strips it).
• Paths are compared based on unicode code-points.
• Case-insensitive and locale-specific comparisons MUST NOT not be used.

pub fn len(&self) -> u64

the size of the file in bytes

Metadata is not a collection, so we will not provide is_empty. Keep the same style with std::fs::File

pub fn is_dir(&self) -> bool

file or directory

pub fn is_file(&self) -> bool

file or directory

pub fn permissions(&self) -> i16

the permissions associated with the file

pub fn replication(&self) -> i16

the count of replicas

pub fn block_size(&self) -> i64

the block size for the file

pub fn owner(&self) -> &str

the owner of the file

pub fn group(&self) -> &str

the group associated with the file

pub fn modified(&self) -> SystemTime

the last modification time for the file in seconds

pub fn accessed(&self) -> SystemTime

the last access time for the file in seconds

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Metadata

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<hdfsFileInfo> for Metadata

fn from(hfi: hdfsFileInfo) -> Self

Converts to this type from the input type.

impl PartialEq for Metadata

fn eq(&self, other: &Metadata) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Metadata

impl StructuralPartialEq for Metadata