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

# -*- coding: UTF-8 -*-
"""
 Copyright 2020 Tianshu AI Platform. 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}