somew1nd
206a9ce921
ARTEMIS is an autonomous multimodal Android agent and mobile UI automation platform engineered for physical devices and emulators. It combines state-of-the-art multimodal Vision-Language Models (VLMs) with hierarchical closed-loop planning, resilient self-healing, and deep Android subsystem integration. Key Features & Architectural Highlights: - Dual-Engine Orchestration: * Pro Engine: Multi-agent closed-loop (Planner -> Operator -> Validator/Failure Analyzer -> Summarizer) powered by LangGraph. * Flash Engine: Ultra-fast reactive loop for deterministic, low-latency UI execution (<35 steps). - Multimodal Perception & Grounding: * Hybrid visual screenshot grounding, real-time OCR extraction, and XML accessibility hierarchy parsing. * Dynamic-First, Coordinate-Fallback locating strategy for maximum resilience against UI drift. - Autonomous Self-Healing & Diagnostics: * Failure analyzer and safety net for popup dismissal, crash recovery, and auto-retry. * Diagnostic sub-agents for log analysis, video recording inspection, and object detection. - Unified CLI & Python SDK: * Rich CLI with commands: init, doctor, run, trace, batch, bench, server, and mcp. * Fluent Python SDK with Pydantic structured output models and package locking. - Multi-Provider LLM Architecture: * Support for Google Gemini, OpenAI, Anthropic Claude, Vertex AI, OpenRouter, xAI Grok, and local endpoints (Ollama/vLLM). * Centralized configuration in config/artemis.jsonc. - Native MCP & Observability: * Model Context Protocol (MCP) server endpoints for AI IDEs. * Full trace recording with before/after screenshots, action overlays, and execution replays. Change-Id: I430b93ee2b76b54cc5a3c6eeccd15d2cf29830a1
78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Event Bus and Lifecycle Hooks System for ARTEMIS."""
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from collections import defaultdict
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from collections.abc import Callable
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from enum import Enum
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import inspect
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import time
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from typing import Any
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from pydantic import BaseModel, Field
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from artemis.utils.logger import get_logger
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logger = get_logger(__name__)
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class HookType(str, Enum):
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BEFORE_TASK = "before_task"
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AFTER_TASK = "after_task"
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BEFORE_STEP = "before_step"
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AFTER_STEP = "after_step"
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ON_ACTION = "on_action"
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ON_ERROR = "on_error"
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ON_SCREEN_CHANGE = "on_screen_change"
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class Event(BaseModel):
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"""Encapsulates an event payload emitted through the event bus."""
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event_type: HookType = Field(..., description="Type of the lifecycle event")
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timestamp: float = Field(default_factory=time.time, description="Event occurrence timestamp")
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trace_id: str = Field(..., description="Active session trace identifier")
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payload: dict[str, Any] = Field(default_factory=dict, description="Event data dictionary")
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class EventBus:
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"""Asynchronous event bus supporting subscription and broadcast of lifecycle events."""
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def __init__(self):
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self._subscribers: dict[HookType, list[Callable[..., Any]]] = defaultdict(list)
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def subscribe(self, hook: HookType, callback: Callable[..., Any]) -> None:
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"""Registers a listener callback for a specific lifecycle event."""
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self._subscribers[hook].append(callback)
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def unsubscribe(self, hook: HookType, callback: Callable[..., Any]) -> None:
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"""Removes a registered callback."""
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if callback in self._subscribers[hook]:
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self._subscribers[hook].remove(callback)
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async def emit(self, event: Event) -> None:
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"""Asynchronously dispatches an event to all subscribed listeners."""
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listeners = self._subscribers.get(event.event_type, [])
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for listener in listeners:
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try:
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if inspect.iscoroutinefunction(listener):
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await listener(event)
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else:
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listener(event)
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except Exception as e:
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logger.warning(f"Error executing event listener for {event.event_type}: {e}")
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# Global singleton event bus instance
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global_event_bus = EventBus()
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