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5b7b694 9f0026f 5b7b694 9f0026f 5b7b694 6293ebc 5b7b694 6293ebc 5b7b694 6293ebc 5b7b694 6293ebc 5b7b694 9f0026f 5b7b694 6293ebc 5b7b694 6293ebc 5b7b694 6293ebc | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | # Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
"""Constraint Env Environment Client."""
from typing import Dict
from openenv.core import EnvClient
from openenv.core.client_types import StepResult
from .models import ConstraintAction, ConstraintObservation, ConstraintState
class ConstraintEnv(
EnvClient[ConstraintAction, ConstraintObservation, ConstraintState]
):
"""
Client for the Constraint Env Environment.
This client maintains a persistent WebSocket connection to the environment server,
enabling efficient multi-step interactions with lower latency.
Each client instance has its own dedicated environment session on the server.
"""
def _step_payload(self, action: ConstraintAction) -> Dict:
"""
Convert ConstraintAction to JSON payload for step message.
"""
return {
"ast_output": action.ast_output,
}
def _parse_result(self, payload: Dict) -> StepResult[ConstraintObservation]:
"""
Parse server response into StepResult[ConstraintObservation].
"""
if isinstance(payload, str):
raise ValueError(f"Server returned an error string instead of JSON: {payload}")
obs_data = payload.get("observation", {})
if isinstance(obs_data, str):
obs_data = {}
observation = ConstraintObservation(
prompt=obs_data.get("prompt", ""),
info=obs_data.get("info", {}), # FIX: Changed from 0 to {}
done=payload.get("done", False),
reward=payload.get("reward", 0.01),
messages=obs_data.get("messages", []) # FIX: Added the missing messages array
)
return StepResult(
observation=observation,
reward=payload.get("reward", 0.01),
done=payload.get("done", False),
)
def _parse_state(self, payload: Dict) -> ConstraintState:
"""
Parse server response into State object.
"""
if isinstance(payload, str):
raise ValueError(f"Server returned an error string instead of JSON: {payload}")
return ConstraintState(
episode_id=payload.get("episode_id"),
step_count=payload.get("step_count", 0), # FIX: Added missing step tracking
max_steps=payload.get("max_steps", 5) # FIX: Added missing max step bounds
) |