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# Copyright (c) Yogesh Singla 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.
"""
Julia Environment HTTP Client.
This module provides the client for connecting to a Julia Environment server
over HTTP.
"""
from typing import Dict
from core.client_types import StepResult
from core.http_env_client import HTTPEnvClient
from .models import JuliaAction, JuliaObservation, JuliaState
class JuliaEnv(HTTPEnvClient[JuliaAction, JuliaObservation]):
"""
HTTP client for the Julia Environment.
This client connects to a JuliaEnvironment HTTP server and provides
methods to interact with it: reset(), step(), and state access.
Example:
>>> # Connect to a running server
>>> client = JuliaEnv(base_url="http://localhost:8000")
>>> result = client.reset()
>>> print(result.observation.stdout)
>>>
>>> # Execute Julia code
>>> action = JuliaAction(code='''
... function multiply(a, b)
... return a * b
... end
...
... using Test
... @test multiply(3, 4) == 12
... ''')
>>> result = client.step(action)
>>> print(result.observation.tests_passed) # 1
>>> print(result.reward)
Example with Docker:
>>> # Automatically start container and connect
>>> client = JuliaEnv.from_docker_image("julia-env:latest")
>>> result = client.reset()
>>> result = client.step(JuliaAction(code="println(2 + 2)"))
>>> print(result.observation.stdout) # "4\n"
>>> client.close()
"""
def _step_payload(self, action: JuliaAction) -> Dict:
"""
Convert JuliaAction to JSON payload for step request.
Args:
action: JuliaAction instance
Returns:
Dictionary representation suitable for JSON encoding
"""
return {
"core_code": action.core_code,
"test_code": action.test_code
}
def _parse_result(self, payload: Dict) -> StepResult[JuliaObservation]:
"""
Parse server response into StepResult[JuliaObservation].
Args:
payload: JSON response from server
Returns:
StepResult with JuliaObservation
"""
obs_data = payload.get("observation", {})
observation = JuliaObservation(
stdout=obs_data.get("stdout", ""),
stderr=obs_data.get("stderr", ""),
exit_code=obs_data.get("exit_code", 0),
tests_passed=obs_data.get("tests_passed", 0),
tests_failed=obs_data.get("tests_failed", 0),
code_compiles=obs_data.get("code_compiles", True),
metadata=obs_data.get("metadata", {}),
)
return StepResult[JuliaObservation](
observation=observation,
reward=payload.get("reward"),
done=payload.get("done", False),
)
def _parse_state(self, payload: Dict) -> JuliaState:
"""
Parse server response into JuliaState object.
Args:
payload: JSON response from /state endpoint
Returns:
JuliaState object with episode metadata
"""
return JuliaState(
episode_id=payload.get("episode_id"),
step_count=payload.get("step_count", 0),
last_exit_code=payload.get("last_exit_code", 0),
last_code_compiles=payload.get("last_code_compiles", True),
total_tests_passed=payload.get("total_tests_passed", 0),
total_tests_failed=payload.get("total_tests_failed", 0),
)
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