Struct FileMetadata 

pub struct FileMetadata {
    pub hashes: Hashes,
    pub size: u64,
    pub created_by: String,
    pub add_time: Timestamp,
    pub compression: Compression,
    pub message: Option<String>,
}

The dvs metadata for a given file

Fields

hashes: Hashes

size: u64

created_by: String

add_time: Timestamp

compression: Compression

message: Option<String>

Implementations

impl FileMetadata

pub fn from_hashes( hashes: Hashes, size: u64, compression: Compression, message: Option<String>, ) -> Self

pub fn from_file( path: impl AsRef<Path>, compression: Compression, message: Option<String>, ) -> Result<Self>

pub fn write( &self, paths: &DvsPaths, relative_path: impl AsRef<Path>, ) -> Result<()>

Writes the metadata file, creating its directory if needed.

pub fn save( &mut self, operation_id: Uuid, source_file: impl AsRef<Path>, backend: &Backend, paths: &DvsPaths, relative_path: impl AsRef<Path>, on_bytes: Option<&(dyn Fn(u64) + Send + Sync)>, ) -> Result<(Outcome, Option<StoreResult>)>

Returns whether the file already existed in the dvs folder and therefore is an update and what storage reported, if it stored anything. Copies the source file to storage and saves metadata atomically (both succeed or neither).

pub fn store_and_write( &mut self, operation_id: Uuid, source_file: impl AsRef<Path>, backend: &Backend, paths: &DvsPaths, relative_path: impl AsRef<Path>, on_bytes: Option<&(dyn Fn(u64) + Send + Sync)>, ) -> Result<StoreResult>

Stores the file then writes the metadata, atomically: either both succeed or neither is left behind. Returns what storage reported.

Trait Implementations

impl Clone for FileMetadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FileMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for FileMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FileMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.