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from bl.transformer_runner_interface import TransforerRunnerInterface | ||
from connector.producer import AbstractProducer | ||
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class AbstractConsumer: | ||
'''Class responsible of consumning and creating kafka consumer.''' | ||
def __init__(self, trasformer: TransforerRunnerInterface, producer: AbstractProducer, configuration: dict): | ||
pass | ||
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def consume(self): | ||
'''Function start the consuming | ||
Args: | ||
topic: string array of the topic to consume''' | ||
pass | ||
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def shutdown(self): | ||
'''Function shutdown the consumer if needed''' | ||
pass | ||
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def get_message_value_as_dict(self, msg): | ||
'''Function that convert raw message to dictionary for easy consume and running the logic for abstract connector | ||
Args: | ||
msg: the message recieve in the consumer ''' | ||
pass |
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import ast | ||
import os | ||
from connector.consumer import AbstractConsumer | ||
from connector.kafka.kafka_consumer import KafkaConsumer | ||
from connector.producer import AbstractProducer | ||
from bl.transformer_runner_interface import TransforerRunnerInterface | ||
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def build_consumer(transformer: TransforerRunnerInterface, producer: AbstractProducer) -> AbstractConsumer: | ||
consumer_type = os.environ.get('type') | ||
if consumer_type == 'kafka': | ||
kafka_config = { | ||
'bootstrap.servers': os.environ.get('brokers'), | ||
'group.id': os.environ.get('group_id'), | ||
'topics': [ast.literal_eval(os.environ.get('input'))['topic']] | ||
} | ||
return KafkaConsumer(transformer, producer, kafka_config) | ||
else: | ||
return None |
22 changes: 12 additions & 10 deletions
22
pipeline/kafka/consumer.py → pipeline/connector/kafka/kafka_consumer.py
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19 changes: 4 additions & 15 deletions
19
pipeline/kafka/producer.py → pipeline/connector/kafka/kafka_producer.py
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Original file line number | Diff line number | Diff line change |
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from utils.logger import logger | ||
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class AbstractProducer(): | ||
'''Class responsible of producing and creating prooducer.''' | ||
def __init__(self, configuration: dict): | ||
pass | ||
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def produced_callback(self, err, msg): | ||
'''Callback after produce | ||
Args: | ||
err: if the produce failed | ||
msg: the msg that produced''' | ||
if err is not None: | ||
logger.error("Failed to deliver message: %s:%s", str(msg), str(err)) | ||
else: | ||
logger.error("Message produced: %s", str(msg)) | ||
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def produce(self, values): | ||
'''Function produce msg | ||
Args: | ||
values: the values that will be produce''' | ||
pass |
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import ast | ||
import os | ||
from connector.kafka.kafka_producer import KafkaProducer | ||
from connector.producer import AbstractProducer | ||
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def build_producer() -> AbstractProducer: | ||
producer_type = os.environ.get('type') | ||
if producer_type == 'kafka': | ||
kafka_output_topic = ast.literal_eval(os.environ.get('output'))['topic'] | ||
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return KafkaProducer({'topic': kafka_output_topic}) | ||
else: | ||
return None |
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Original file line number | Diff line number | Diff line change |
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@@ -1,15 +1,14 @@ | ||
from utils.logger import logger | ||
from config import kafka_input_topic, kafka_output_topic | ||
from kafka.consumer import KafkaConsumer | ||
from kafka.producer import KafkaProducer | ||
from connector.consumer_builder import build_consumer | ||
from connector.producer_builder import build_producer | ||
from bl.transformation_builder import build_transformation | ||
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def main(): | ||
''' The main function is the pipeline entrypoint. ''' | ||
logger.info("starting pipeline") | ||
transformer = build_transformation() | ||
producer = KafkaProducer(kafka_output_topic) | ||
consumer = KafkaConsumer(transformer, producer) | ||
consumer.consume([kafka_input_topic]) | ||
producer = build_producer() | ||
consumer = build_consumer(transformer, producer) | ||
consumer.consume() | ||
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main() |