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29 lines
825 B
Python
29 lines
825 B
Python
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import json
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from kafka import KafkaConsumer
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# Thresholds
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TEMP_TOO_COLD = -10
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TEMP_TOO_HOT = 35
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def process_temperature_reading(reading):
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temperature = reading['temperature']
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if temperature < TEMP_TOO_COLD:
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alert = f"WARNING: Temperature is too cold! ({temperature}°C)"
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elif temperature > TEMP_TOO_HOT:
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alert = f"WARNING: Temperature is too hot! ({temperature}°C)"
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else:
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alert = f"Temperature is normal. ({temperature}°C)"
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return alert
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if __name__ == '__main__':
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consumer = KafkaConsumer(
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'temperature_readings',
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bootstrap_servers='localhost:9092',
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auto_offset_reset='earliest'
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)
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for message in consumer:
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reading = json.loads(message.value)
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alert_message = process_temperature_reading(reading)
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print(alert_message)
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