Struct MooncakeJsonlWriter 

pub struct MooncakeJsonlWriter { /* private fields */ }

JSONL writer for Mooncake rows plus an optional sidecar stream.

The sidecar stream is configured at construction time. Producers that do not emit sidecar metadata pass None for sidecar_path and never call Self::write_sidecar. When a sidecar path is configured, callers are responsible for choosing the path – this writer does not enforce a naming convention.

Implementations

impl MooncakeJsonlWriter

pub fn create(output_path: &Path, sidecar_path: Option<&Path>) -> Result<Self>

Create a writer at output_path, optionally with a paired sidecar JSONL file at sidecar_path. Parent directories are created as needed.

pub fn write_row(&mut self, row: &MooncakeRow) -> Result<()>

Append one Mooncake row.

pub fn write_agentic_row(&mut self, row: &AgenticMooncakeRow) -> Result<()>

Append one agentic Mooncake row.

pub fn write_sidecar<S: Serialize>(&mut self, sidecar: &S) -> Result<()>

Append one sidecar entry. Errors if no sidecar was configured.

pub fn has_sidecar(&self) -> bool

True if a sidecar stream is configured.

pub fn stats(&self) -> WriterStats

Snapshot of how many rows and sidecar entries have been written so far.

pub fn finish(self) -> Result<WriterStats>

Flush both streams and return the final stats.