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126 lines
3.3 KiB
Python
126 lines
3.3 KiB
Python
from collections.abc import Callable
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from functools import wraps
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from crewai import Crew
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from crewai.project.utils import memoize
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"""Decorators for defining crew components and their behaviors."""
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def before_kickoff(func):
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"""Marks a method to execute before crew kickoff."""
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func.is_before_kickoff = True
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return func
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def after_kickoff(func):
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"""Marks a method to execute after crew kickoff."""
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func.is_after_kickoff = True
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return func
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def task(func):
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"""Marks a method as a crew task."""
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func.is_task = True
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@wraps(func)
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def wrapper(*args, **kwargs):
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result = func(*args, **kwargs)
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if not result.name:
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result.name = func.__name__
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return result
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return memoize(wrapper)
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def agent(func):
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"""Marks a method as a crew agent."""
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func.is_agent = True
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return memoize(func)
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def llm(func):
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"""Marks a method as an LLM provider."""
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func.is_llm = True
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return memoize(func)
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def output_json(cls):
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"""Marks a class as JSON output format."""
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cls.is_output_json = True
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return cls
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def output_pydantic(cls):
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"""Marks a class as Pydantic output format."""
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cls.is_output_pydantic = True
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return cls
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def tool(func):
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"""Marks a method as a crew tool."""
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func.is_tool = True
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return memoize(func)
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def callback(func):
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"""Marks a method as a crew callback."""
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func.is_callback = True
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return memoize(func)
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def cache_handler(func):
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"""Marks a method as a cache handler."""
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func.is_cache_handler = True
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return memoize(func)
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def crew(func) -> Callable[..., Crew]:
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"""Marks a method as the main crew execution point."""
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@wraps(func)
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def wrapper(self, *args, **kwargs) -> Crew:
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instantiated_tasks = []
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instantiated_agents = []
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agent_roles = set()
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# Use the preserved task and agent information
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tasks = self._original_tasks.items()
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agents = self._original_agents.items()
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# Instantiate tasks in order
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for _task_name, task_method in tasks:
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task_instance = task_method(self)
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instantiated_tasks.append(task_instance)
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agent_instance = getattr(task_instance, "agent", None)
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if agent_instance and agent_instance.role not in agent_roles:
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instantiated_agents.append(agent_instance)
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agent_roles.add(agent_instance.role)
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# Instantiate agents not included by tasks
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for _agent_name, agent_method in agents:
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agent_instance = agent_method(self)
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if agent_instance.role not in agent_roles:
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instantiated_agents.append(agent_instance)
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agent_roles.add(agent_instance.role)
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self.agents = instantiated_agents
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self.tasks = instantiated_tasks
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crew = func(self, *args, **kwargs)
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def callback_wrapper(callback, instance):
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def wrapper(*args, **kwargs):
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return callback(instance, *args, **kwargs)
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return wrapper
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for callback in self._before_kickoff.values():
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crew.before_kickoff_callbacks.append(callback_wrapper(callback, self))
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for callback in self._after_kickoff.values():
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crew.after_kickoff_callbacks.append(callback_wrapper(callback, self))
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return crew
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return memoize(wrapper)
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