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from src.hooks.progressListener import ProgressListener
from typing import Union
class SubTaskProgressListener(ProgressListener):
"""
A sub task listener that reports the progress of a sub task to a base task listener
Parameters
----------
base_task_listener : ProgressListener
The base progress listener to accumulate overall progress in.
base_task_total : float
The maximum total progress that will be reported to the base progress listener.
sub_task_start : float
The starting progress of a sub task, in respect to the base progress listener.
sub_task_total : float
The total amount of progress a sub task will report to the base progress listener.
"""
def __init__(
self,
base_task_listener: ProgressListener,
base_task_total: float,
sub_task_start: float,
sub_task_total: float,
):
self.base_task_listener = base_task_listener
self.base_task_total = base_task_total
self.sub_task_start = sub_task_start
self.sub_task_total = sub_task_total
def on_progress(self, current: Union[int, float], total: Union[int, float]):
sub_task_progress_frac = current / total
sub_task_progress = self.sub_task_start + self.sub_task_total * sub_task_progress_frac
self.base_task_listener.on_progress(sub_task_progress, self.base_task_total)
def on_finished(self):
self.base_task_listener.on_progress(self.sub_task_start + self.sub_task_total, self.base_task_total) |