Dubhe/dubhe-visual-server/backend/backend/component/Histogram/provider.py

# -*- coding: UTF-8 -*-
#  Copyright 2020 Zhejiang Lab. All Rights Reserved.
#
#  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 utils.cache_io import CacheIO
from .hist_read import histogram_read
from utils.path_utils import get_file_path
from backend.api.utils import get_api_params


def hist_provider(file_path, samples=None):
    # read from cache
    res = CacheIO(file_path).get_cache()
    if res:
        hist_data = histogram_read(samples=samples, data=res).get_data()
        return hist_data
    else:
        raise ValueError('Parameter error, no data found')


def get_histogram_data(request):
    params = ['uid', 'trainJobName', 'run', 'tag']
    uid, trainJobName, run, tag = get_api_params(request, params)
    # 可选参数 sample
    samples = request.GET.get('samples')
    samples = int(samples) if samples else None

    file_path = get_file_path(uid, run, 'hist', tag)
    data = hist_provider(file_path, samples=samples)
    return {tag: data}