xml-pipeline/agentserver/message_bus/thread.py
2026-01-02 00:01:20 -08:00

35 lines
No EOL
1 KiB
Python

# message_bus/thread.py
from __future__ import annotations
from typing import Optional
from lxml import etree
import uuid
class Thread:
"""
Internal thread context used by MessageBus.
Not part of the public API — do not import or instantiate directly.
Exists in its own module only to keep MessageBus readable.
"""
def __init__(
self,
parent: Optional['Thread'] = None,
thread_id: Optional[str] = None,
metadata: Optional[dict] = None,
):
self.id = thread_id or str(uuid.uuid4())
self.parent = parent
self.depth = parent.depth + 1 if parent else 0
self.buffer = bytearray()
# noinspection PyTypeChecker
self.parser = etree.XMLPullParser(events=("end",))
self.active = True
self.metadata = metadata or (parent.metadata.copy() if parent else {})
# Optional: add __repr__ for debugging
def __repr__(self) -> str:
return f"<Thread {self.id[:8]} depth={self.depth} buf={len(self.buffer)}>"