Struct InstrumentedStore 

pub struct InstrumentedStore<S: ObjectStore> { /* private fields */ }

A wrapper that instruments any ObjectStore implementation with statistics.

Implementations

impl<S: ObjectStore> InstrumentedStore<S>

pub fn new(store: S) -> Self

Wrap store in a statistics-gathering layer.

pub fn stats(&self) -> StorageStats

Take a snapshot of the current statistics.

pub fn reset_stats(&self)

Reset all statistics to zero.

Trait Implementations

impl<S: ObjectStore> ObjectStore for InstrumentedStore<S>

fn put(&self, key: &ObjectKey, data: &[u8]) -> Result<()>

Store data under key, overwriting any existing object.

fn get(&self, key: &ObjectKey) -> Result<Vec<u8>>

Retrieve the object stored under key.

fn delete(&self, key: &ObjectKey) -> Result<()>

Delete the object at key. Returns Ok(()) if the key does not exist.

fn list(&self, prefix: &str) -> Result<Vec<ObjectMetadata>>

List all keys whose URI starts with prefix.

fn head(&self, key: &ObjectKey) -> Result<ObjectMetadata>

Return metadata for a single object without downloading its content.

fn exists(&self, key: &ObjectKey) -> bool

Check whether an object exists.

fn copy(&self, src: &ObjectKey, dst: &ObjectKey) -> Result<()>

Copy an object from src to dst within the same store.

fn rename(&self, src: &ObjectKey, dst: &ObjectKey) -> Result<()>

Rename/move an object from src to dst.