mirror of
https://github.com/crewAIInc/crewAI.git
synced 2026-07-02 05:38:12 +00:00
f936e0f69b
- Disable E501 line length linting rule - Add Google-style docstrings to tasks leaf file - Modernize typing and docs in task_output.py - Improve typing and documentation in conditional_task.py
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
"""Conditional task execution based on previous task output."""
|
|
|
|
from collections.abc import Callable
|
|
from typing import Any
|
|
|
|
from pydantic import Field
|
|
|
|
from crewai.task import Task
|
|
from crewai.tasks.output_format import OutputFormat
|
|
from crewai.tasks.task_output import TaskOutput
|
|
|
|
|
|
class ConditionalTask(Task):
|
|
"""A task that can be conditionally executed based on the output of another task.
|
|
|
|
This task type allows for dynamic workflow execution based on the results of
|
|
previous tasks in the crew execution chain.
|
|
|
|
Attributes:
|
|
condition: Function that evaluates previous task output to determine execution.
|
|
|
|
Notes:
|
|
- Cannot be the only task in your crew
|
|
- Cannot be the first task since it needs context from the previous task
|
|
"""
|
|
|
|
condition: Callable[[TaskOutput], bool] | None = Field(
|
|
default=None,
|
|
description="Function that determines whether the task should be executed based on previous task output.",
|
|
)
|
|
|
|
def __init__(
|
|
self,
|
|
condition: Callable[[Any], bool] | None = None,
|
|
**kwargs,
|
|
):
|
|
super().__init__(**kwargs)
|
|
self.condition = condition
|
|
|
|
def should_execute(self, context: TaskOutput) -> bool:
|
|
"""Determines whether the conditional task should be executed based on the provided context.
|
|
|
|
Args:
|
|
context: The output from the previous task that will be evaluated by the condition.
|
|
|
|
Returns:
|
|
True if the task should be executed, False otherwise.
|
|
|
|
Raises:
|
|
ValueError: If no condition function is set.
|
|
"""
|
|
if self.condition is None:
|
|
raise ValueError("No condition function set for conditional task")
|
|
return self.condition(context)
|
|
|
|
def get_skipped_task_output(self) -> TaskOutput:
|
|
"""Generate a TaskOutput for when the conditional task is skipped.
|
|
|
|
Returns:
|
|
Empty TaskOutput with RAW format indicating the task was skipped.
|
|
"""
|
|
return TaskOutput(
|
|
description=self.description,
|
|
raw="",
|
|
agent=self.agent.role if self.agent else "",
|
|
output_format=OutputFormat.RAW,
|
|
)
|