# Copyright 2022,2023 Sony Group Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from tqdm import tqdm
from nnabla_rl.algorithm import Algorithm
from nnabla_rl.hook import Hook
[docs]class ProgressBarHook(Hook):
"""Hook to show progress bar.
Args:
timing (int): Updating interval. Defaults to 1 iteration.
"""
def __init__(self, timing: int = 1):
super(ProgressBarHook, self).__init__(timing=timing)
[docs] def on_hook_called(self, algorithm: Algorithm):
if algorithm.iteration_num != 0:
self._progress_bar.update(self._timing)
[docs] def setup(self, algorithm: Algorithm, total_iterations: int):
self._progress_bar = tqdm(total=total_iterations, position=-1)
[docs] def teardown(self, algorithm: Algorithm, total_iterations: int):
self._progress_bar.close()