220 lines
No EOL
8.1 KiB
Python
220 lines
No EOL
8.1 KiB
Python
"""
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Updated registry for all available agents in the system.
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Provides centralized agent registration and access with improved error handling.
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"""
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import os
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import logging
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import importlib
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from typing import Dict, Any, List, Optional
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# Import direct base agent module
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from modules.agentservice_base import BaseAgent
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logger = logging.getLogger(__name__)
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class AgentRegistry:
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"""Registry for all available agents in the system"""
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_instance = None
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@classmethod
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def get_instance(cls):
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"""Get a singleton instance of the Agent Registry"""
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if cls._instance is None:
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cls._instance = cls()
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return cls._instance
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def __init__(self):
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"""Initialize the Agent Registry"""
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if AgentRegistry._instance is not None:
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raise RuntimeError("Singleton instance already exists - use get_instance()")
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self.agents = {}
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self._load_agents()
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def _load_agents(self):
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"""Load all available agents"""
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# List of all agent modules to load
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logger.info("Automatically loading agent modules...")
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agent_modules = []
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for filename in os.listdir(os.path.dirname(__file__)):
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if filename.startswith("agentservice_agent_") and filename.endswith(".py"):
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agent_modules.append(filename[:-3]) # Remove .py extension
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if not agent_modules:
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logger.warning("No agent modules found")
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return
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logger.info(f"Found {len(agent_modules)} agent modules")
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for module_name in agent_modules:
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try:
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# Import the module
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try:
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module = importlib.import_module(f"modules.{module_name}")
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except ImportError:
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module = importlib.import_module(module_name)
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# Look for the agent class or a get_*_agent function
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agent_type = module_name.split('_')[-1]
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class_name = f"{agent_type.capitalize()}Agent"
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getter_name = f"get_{agent_type}_agent"
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agent = None
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# Try to get the agent via the get_*_agent function
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if hasattr(module, getter_name):
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getter_func = getattr(module, getter_name)
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agent = getter_func()
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logger.info(f"Agent '{agent.name}' (Type: {agent.type}) loaded via {getter_name}()")
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# Alternatively, try to instantiate the agent directly
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elif hasattr(module, class_name):
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agent_class = getattr(module, class_name)
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agent = agent_class()
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logger.info(f"Agent '{agent.name}' (Type: {agent.type}) directly instantiated")
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if agent:
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# Register the agent
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self.register_agent(agent)
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else:
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logger.warning(f"No agent class or getter function found in module {module_name}")
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except ImportError as e:
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logger.warning(f"Module {module_name} could not be imported: {e}")
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except Exception as e:
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logger.error(f"Error loading agent from module {module_name}: {e}")
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def register_agent(self, agent: BaseAgent):
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"""
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Register an agent in the registry.
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Args:
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agent: The agent to register
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"""
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agent_type = agent.type
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self.agents[agent_type] = agent
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# Also register by ID
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self.agents[agent.id] = agent
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logger.debug(f"Agent '{agent.name}' (Type: {agent_type}) registered")
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def get_agent(self, agent_identifier: str) -> Optional[BaseAgent]:
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"""
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Get an agent instance by ID or type.
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Args:
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agent_identifier: ID or type of the desired agent
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Returns:
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Agent instance or None if not found
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"""
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# Try to find directly by type
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if agent_identifier in self.agents:
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return self.agents[agent_identifier]
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# If not found, try different name variants
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variants = [
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agent_identifier,
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agent_identifier.replace('_agent', ''),
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f"{agent_identifier}_agent"
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]
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for variant in variants:
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if variant in self.agents:
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return self.agents[variant]
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logger.warning(f"Agent with identifier '{agent_identifier}' not found")
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return None
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def get_all_agents(self) -> Dict[str, BaseAgent]:
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"""Get all registered agents."""
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return self.agents
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def get_agent_infos(self) -> List[Dict[str, Any]]:
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"""Get information about all registered agents."""
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agent_infos = []
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# Only once per agent instance (since we register both by type and ID)
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seen_agents = set()
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for agent in self.agents.values():
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if agent not in seen_agents:
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agent_infos.append(agent.get_agent_info())
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seen_agents.add(agent)
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return agent_infos
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def get_agent_by_format(self, required_format: str) -> Optional[BaseAgent]:
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"""
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Find an agent that can produce the required output format.
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Args:
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required_format: The required output format
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Returns:
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Agent that can produce the required format, or None if not found
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"""
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# Create mapping of result format -> agent for faster lookup
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format_to_agent = {}
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seen_agents = set()
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for agent in self.agents.values():
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if agent not in seen_agents:
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# Get the agent's result format
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agent_format = getattr(agent, 'result_format', None)
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if agent_format:
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format_to_agent[agent_format.lower()] = agent
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seen_agents.add(agent)
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# Try to find an exact match
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if required_format.lower() in format_to_agent:
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return format_to_agent[required_format.lower()]
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# If no exact match, try to find a partial match
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for fmt, agent in format_to_agent.items():
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if required_format.lower() in fmt or fmt in required_format.lower():
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return agent
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# No match found
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return None
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def initialize_agents_for_workflow(self) -> Dict[str, Dict[str, Any]]:
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"""Initialize agents for a workflow."""
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initialized_agents = {}
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seen_agents = set()
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for agent in self.agents.values():
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if agent not in seen_agents:
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agent_info = agent.get_agent_info()
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agent_id = agent_info["id"]
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initialized_agents[agent_id] = agent_info
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seen_agents.add(agent)
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return initialized_agents
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def get_agent_capabilities(self) -> Dict[str, List[str]]:
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"""
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Get a mapping of capabilities to agents.
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Useful for finding the right agent for a specific task.
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Returns:
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Dict mapping capability keywords to agent IDs
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"""
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capabilities_map = {}
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seen_agents = set()
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for agent in self.agents.values():
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if agent not in seen_agents:
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# Get agent info
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agent_info = agent.get_agent_info()
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agent_id = agent_info["id"]
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# Extract capabilities
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capabilities = agent_info.get("capabilities", "")
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# Split capabilities into keywords
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if capabilities:
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keywords = [kw.strip().lower() for kw in capabilities.split(',')]
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# Add each keyword to the mapping
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for keyword in keywords:
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if keyword not in capabilities_map:
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capabilities_map[keyword] = []
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capabilities_map[keyword].append(agent_id)
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seen_agents.add(agent)
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return capabilities_map |