pub trait FileDownloadListener: Send + Sync 
    // Required methods
    fn on_multi_part_download_complete(&self, results: Vec<OperationResult>);
    fn on_part_download(&self, result: OperationResult);
    fn on_full_file_download(&self, file_names: Vec<String>);

Listener trait for file download progress callbacks.

Implement this trait to receive notifications about download progress, including per-part completion for multi-part downloads.

Example

use gpudb_api::filesystem::{FileDownloadListener, OperationResult};

struct MyDownloadListener;

impl FileDownloadListener for MyDownloadListener {
    fn on_multi_part_download_complete(&self, results: Vec<OperationResult>) {
        println!("Multi-part download complete with {} parts", results.len());
    }

    fn on_part_download(&self, result: OperationResult) {
        if let Some(info) = &result.download_info {
            println!("Downloaded part {} of {}", info.download_part_number, info.total_parts);
        }
    }

    fn on_full_file_download(&self, file_names: Vec<String>) {
        println!("Full files downloaded: {file_names:?}");
    }
}

Required Methods

Source

fn on_multi_part_download_complete(&self, results: Vec<OperationResult>)

Called when all parts of a multi-part download have been completed.

results - List of results for each part of the download

Source

fn on_part_download(&self, result: OperationResult)

Called whenever a single part of a multi-part download has been completed.

This is useful for tracking progress during large file downloads.

result - Result of the part download

Source

fn on_full_file_download(&self, file_names: Vec<String>)

Called once per batch of whole files fetched in one request, with the KiFS names of those saved, when at least one was. A file skipped because it already existed locally and overwriting is off counts as saved.

file_names - The KiFS names of the files saved

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called “object safety”.

Implementors

Source

impl FileDownloadListener for NoOpDownloadListener

Source

impl<F1, F2, F3>FileDownloadListener for FnDownloadListener<F1, F2, F3>
where F1: Fn(Vec<OperationResult>) + Send + Sync, F2: Fn(OperationResult) + Send + Sync, F3: Fn(Vec<String>) + Send + Sync,

​Example

​Required Methods

​fn on_multi_part_download_complete(&self, results: Vec<OperationResult>)

​fn on_part_download(&self, result: OperationResult)

​fn on_full_file_download(&self, file_names: Vec<String>)

​Dyn Compatibility

​Implementors

​impl FileDownloadListener for NoOpDownloadListener

​impl<F1, F2, F3>FileDownloadListener for FnDownloadListener<F1, F2, F3> where F1: Fn(Vec<OperationResult>) + Send + Sync, F2: Fn(OperationResult) + Send + Sync, F3: Fn(Vec<String>) + Send + Sync,

Example

Required Methods

fn on_multi_part_download_complete(&self, results: Vec<OperationResult>)

fn on_part_download(&self, result: OperationResult)

fn on_full_file_download(&self, file_names: Vec<String>)

Dyn Compatibility

Implementors

impl FileDownloadListener for NoOpDownloadListener

impl<F1, F2, F3>FileDownloadListener for FnDownloadListener<F1, F2, F3>
where F1: Fn(Vec<OperationResult>) + Send + Sync, F2: Fn(OperationResult) + Send + Sync, F3: Fn(Vec<String>) + Send + Sync,