87 lines
2.0 KiB
Python
87 lines
2.0 KiB
Python
import flask
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from flask import request, jsonify
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import numpy as np
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from threading import Thread
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import logging
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log = logging.getLogger('werkzeug')
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log.setLevel(logging.ERROR)
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# hide the info-messages of each GET-request
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class BroadcastUpdates:
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"""Broadcasts (out) updates for the hw-handler to be fetched periodically"""
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def __init__(self, port):
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""""""
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self.last_show = ""
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self.queue = [] #[{"matrices" : [np.full((16,16,3), 10).tolist(), np.full((16,16,3), 100).tolist(), np.full((16,16,3), 200).tolist()]} for _ in range(4)]
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self.port = port
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def start(self):
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t = Thread(target=self.run)
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t.start()
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def run(self):
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app = flask.Flask(__name__)
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@app.route('/getupdates', methods=['GET'])
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def get_updates():
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return self.get_updates()
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@app.route('/getlast', methods=['GET'])
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def get_last():
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return self.get_last()
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app.run('0.0.0.0', port=self.port)
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def get_updates(self):
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try:
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data = self.queue.pop(0)
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self.last_show = data
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is_new = True
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has_queue = len(self.queue) > 0
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except:
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data = ""
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is_new = False
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has_queue = False
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return self.generate_response(
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is_new = is_new,
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data = data,
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has_queue = has_queue
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)
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def get_last(self):
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try:
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try:
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data = self.queue[-1]
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self.queue = []
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except: # list empty
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data = self.last_show,
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except:
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data = ""
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return self.generate_response(
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data = data,
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has_queue = False,
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)
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def generate_response(self, **kwargs):
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ret = {
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"status" : "ok",
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**kwargs
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}
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return jsonify(ret)
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