cnn-classification-service/cnn_classification_service/magic_doer.py

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2020-07-28 18:10:19 +02:00
#!/usr/bin/env python3
import os
import logging
import tempfile
import requests
from cnn_classifier import Classifier
def run_everything(parameters: dict):
tag = parameters['tag']
_, file_path = tempfile.mkstemp(prefix=f"{tag}_", suffix=".wav")
_, temp_model_name = tempfile.mkstemp(suffix=".json")
_, temp_weights_name = tempfile.mkstemp(suffix=".h5")
try:
logging.info(f"Downloading sample: {tag}")
r = requests.get(f"http://storage-service/object/{tag}")
with open(file_path, 'wb') as f:
f.write(r.content)
logging.debug(f"Downloaded sample to {file_path}")
r = requests.get(f"http://model-service/model/cnn/$default")
r.raise_for_status()
with open(temp_model_name, 'wb') as f:
f.write(r.content)
r = requests.get(f"http://model-service/model/cnn/$default?weights")
r.raise_for_status()
with open(temp_weights_name, 'wb') as f:
f.write(r.content)
# magic happens here
classifier = Classifier(temp_model_name, temp_weights_name)
results = classifier.predict(file_path)
finally: # bruuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuh
try:
os.remove(temp_model_name)
except FileNotFoundError:
pass
try:
os.remove(temp_weights_name)
except FileNotFoundError:
pass
try:
os.remove(file_path)
except FileNotFoundError:
pass
response = {
"tag": tag,
"probability": 1.0 if results[0] == 'sturnus' else 0.0,
"model": ...
}
logging.info(f"Classification done!")
logging.debug(f"Results: {response}")
return response