120 lines
3.4 KiB
Python
120 lines
3.4 KiB
Python
#!/usr/bin/env python3
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import logging
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import json
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from xeger import Xeger
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from flask_restful import Resource
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from flask import request
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import requests
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from db import db
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from models import SampleMetadata
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from rabbitmqqueue import rabbitmq_channel
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from schemas import SampleSchema
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from config import *
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"""
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Flask Restful endpoints
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"""
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__author__ = '@tormakris'
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__copyright__ = "Copyright 2020, Birbnetes Team"
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__module_name__ = "endpoints"
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__version__text__ = "1"
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LOGGER = logging.getLogger(__name__)
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class SampleResource(Resource):
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"""
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Sample endpoint
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See: https://swagger.kmlabz.com/?urls.primaryName=Input%20Service
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"""
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samplemetadatas_schema = SampleMetadata(many=True,
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exclude=['id', 'device_id', 'device_date', 'tag', 'timestamp'])
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def post(self):
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"""
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Post request send to the endpoint
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:return:
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"""
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if 'file' not in request.files:
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return {"err_msg": "no file found"}, 469
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else:
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soundfile = request.files['file']
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if 'description' not in request.form:
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return {"err_msg": "no description found"}, 470
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else:
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description = request.form.get("description")
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if soundfile.content_type != 'audio/wave':
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LOGGER.info(
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f"Input file was not WAV.")
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return {'err_msg': 'Input file not a wave file.'}, 415
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try:
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desc = json.loads(description)
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except Exception as e:
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LOGGER.exception(e)
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return {'err_msg': 'Input JSON could not be parsed'}, 400
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validate_errors = SampleSchema().validate(desc)
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if validate_errors:
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LOGGER.error(
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"Input JSON did not conform to schema. It was: {}".format(desc))
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return {'err_msg': 'Input JSON schema invalid'}, 417
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xeger = Xeger(limit=30)
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generated_tag = xeger.xeger(r'^[a-zA-Z]+[0-9a-zA-Z_]*$')
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record = SampleMetadata(
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device_id=desc['device_id'],
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device_date=desc['date'],
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tag=generated_tag)
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try:
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db.session.add(record)
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requests.post(
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f"http://{STORAGE_HOSTNAME}/object",
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files={
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'tag': (None, generated_tag),
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'file': (
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'wave.wav',
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soundfile,
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soundfile.content_type)})
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rabbitmq_channel.basic_publish(
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exchange=RABBITMQ_EXCHANGE,
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routing_key='feature',
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body=generated_tag)
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except Exception as e:
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LOGGER.exception(e)
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db.session.rollback()
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return {"err_msg": str(
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e), "hint": "DB or downstream service error"}, 569
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db.session.commit()
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return {"tag": generated_tag}, 200
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def get(self):
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"""
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Get all stored items
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:return:
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"""
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samples = SampleMetadata.query.all()
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return list(samples), 200
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class SampleParameterResource(Resource):
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"""
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Sample endpoint with parameters
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"""
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samplemetadata_schema = SampleMetadata(many=False)
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def get(self, tag: str):
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"""
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Get a specific item
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:param tag:
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:return:
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"""
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sample = SampleMetadata.query.filter_by(tag=tag).first_or_404()
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return self.samplemetadata_schema.dump(sample), 200
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