resources/tools/dash/app/pal/trending/trending.py

   1 # Copyright (c) 2022 Cisco and/or its affiliates.
   2 # Licensed under the Apache License, Version 2.0 (the "License");
   3 # you may not use this file except in compliance with the License.
   4 # You may obtain a copy of the License at:
   5 #
   6 #     http://www.apache.org/licenses/LICENSE-2.0
   7 #
   8 # Unless required by applicable law or agreed to in writing, software
   9 # distributed under the License is distributed on an "AS IS" BASIS,
  10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11 # See the License for the specific language governing permissions and
  12 # limitations under the License.
  13
  14 """Instantiate the Trending Dash applocation.
  15 """
  16 import dash
  17
  18 from .layout import Layout
  19
  20
  21 def init_trending(server):
  22     """Create a Plotly Dash dashboard.
  23
  24     :param server: Flask server.
  25     :type server: Flask
  26     :returns: Dash app server.
  27     :rtype: Dash
  28     """
  29
  30     dash_app = dash.Dash(
  31         server=server,
  32         routes_pathname_prefix=u"/trending/",
  33         external_stylesheets=[
  34             u"/static/dist/css/styles.css",
  35             u"https://fonts.googleapis.com/css?family=Lato",
  36         ],
  37     )
  38
  39     # Custom HTML layout
  40     layout = Layout(
  41         app=dash_app,
  42         html_layout_file="pal/trending/html_layout.txt",
  43         spec_file="pal/trending/spec_test_selection.yaml",
  44         graph_layout_file="pal/trending/layout.yaml",
  45         data_spec_file="pal/data/data.yaml"
  46     )
  47     dash_app.index_string = layout.html_layout
  48     dash_app.layout = layout.add_content()
  49
  50     return dash_app.server