OpenHands/openhands/memory/condenser/impl/recent_events_condenser.py
Rohit Malhotra 25d9cf2890
[Refactor]: Add LLMRegistry for llm services (#9589)
Co-authored-by: openhands <openhands@all-hands.dev>
Co-authored-by: Graham Neubig <neubig@gmail.com>
Co-authored-by: Engel Nyst <enyst@users.noreply.github.com>
2025-08-18 02:11:20 -04:00

32 lines
1.1 KiB
Python

from __future__ import annotations
from openhands.core.config.condenser_config import RecentEventsCondenserConfig
from openhands.llm.llm_registry import LLMRegistry
from openhands.memory.condenser.condenser import Condensation, Condenser, View
class RecentEventsCondenser(Condenser):
"""A condenser that only keeps a certain number of the most recent events."""
def __init__(self, keep_first: int = 1, max_events: int = 10):
self.keep_first = keep_first
self.max_events = max_events
super().__init__()
def condense(self, view: View) -> View | Condensation:
"""Keep only the most recent events (up to `max_events`)."""
head = view[: self.keep_first]
tail_length = max(0, self.max_events - len(head))
tail = view[-tail_length:]
return View(events=head + tail)
@classmethod
def from_config(
cls, config: RecentEventsCondenserConfig, llm_registry: LLMRegistry
) -> RecentEventsCondenser:
return RecentEventsCondenser(**config.model_dump(exclude={'type'}))
RecentEventsCondenser.register_config(RecentEventsCondenserConfig)