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moved consumer and producer on same machine for threat protection bac…
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123 changes: 123 additions & 0 deletions
123
...-protection-backend/src/main/java/com/akto/threat/protection/tasks/FlushMessagesToDB.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| package com.akto.threat.protection.tasks; | ||
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| import com.akto.kafka.KafkaConfig; | ||
| import com.akto.runtime.utils.Utils; | ||
| import com.akto.threat.protection.db.AggregateSampleMaliciousEventModel; | ||
| import com.akto.threat.protection.db.MaliciousEventModel; | ||
| import com.fasterxml.jackson.core.JsonProcessingException; | ||
| import com.fasterxml.jackson.core.type.TypeReference; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.google.gson.Gson; | ||
| import com.mongodb.client.MongoClient; | ||
| import com.mongodb.client.model.BulkWriteOptions; | ||
| import com.mongodb.client.model.InsertOneModel; | ||
| import com.mongodb.client.model.WriteModel; | ||
| import org.apache.kafka.clients.consumer.ConsumerRecords; | ||
| import org.apache.kafka.clients.consumer.KafkaConsumer; | ||
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|
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| import java.time.Duration; | ||
| import java.util.*; | ||
| import java.util.concurrent.ExecutorService; | ||
| import java.util.concurrent.Executors; | ||
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| public class FlushMessagesToDB { | ||
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| private final KafkaConsumer<String, String> kafkaConsumer; | ||
| private final String kafkaTopic; | ||
| private final KafkaConfig kafkaConfig; | ||
| private final MongoClient mClient; | ||
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| private static final ObjectMapper mapper = new ObjectMapper(); | ||
| private static final Gson gson = new Gson(); | ||
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| public FlushMessagesToDB(KafkaConfig kafkaConfig, String kafkaTopic, MongoClient mongoClient) { | ||
| String kafkaBrokerUrl = kafkaConfig.getBootstrapServers(); | ||
| String groupId = kafkaConfig.getGroupId(); | ||
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| Properties properties = | ||
| Utils.configProperties( | ||
| kafkaBrokerUrl, groupId, kafkaConfig.getConsumerConfig().getMaxPollRecords()); | ||
| this.kafkaConsumer = new KafkaConsumer<>(properties); | ||
| this.kafkaConfig = kafkaConfig; | ||
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| this.kafkaTopic = kafkaTopic; | ||
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| this.mClient = mongoClient; | ||
| } | ||
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| private static ExecutorService getPollingExecutor() { | ||
| return Executors.newSingleThreadExecutor(); | ||
| } | ||
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| public void run() { | ||
| this.kafkaConsumer.subscribe(Collections.singletonList(this.kafkaTopic)); | ||
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| getPollingExecutor() | ||
| .execute( | ||
| () -> { | ||
| // Poll data from Kafka topic | ||
| while (true) { | ||
| ConsumerRecords<String, String> records = | ||
| kafkaConsumer.poll( | ||
| Duration.ofMillis( | ||
| this.kafkaConfig.getConsumerConfig().getPollDurationMilli())); | ||
| if (records.isEmpty()) { | ||
| continue; | ||
| } | ||
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| processRecords(records); | ||
| } | ||
| }); | ||
| } | ||
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| private void processRecords(ConsumerRecords<String, String> records) { | ||
| records.forEach( | ||
| r -> { | ||
| String message = r.value(); | ||
| try { | ||
| writeMessage(message); | ||
| } catch (JsonProcessingException e) { | ||
| System.out.println("Error while parsing message" + e); | ||
| } catch (Exception ex) { | ||
| ex.printStackTrace(); | ||
| } | ||
| }); | ||
| } | ||
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| private void writeMessage(String message) throws JsonProcessingException { | ||
| Map<String, Object> json = gson.fromJson(message, Map.class); | ||
| String eventType = (String) json.get("eventType"); | ||
| String payload = (String) json.get("payload"); | ||
| Double accIdDouble = (Double) json.get("accountId"); | ||
| int accountId = accIdDouble.intValue(); | ||
|
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| switch (eventType) { | ||
| case "maliciousEvents": | ||
| List<WriteModel<AggregateSampleMaliciousEventModel>> bulkUpdates = new ArrayList<>(); | ||
| List<AggregateSampleMaliciousEventModel> events = | ||
| mapper.readValue( | ||
| payload, new TypeReference<List<AggregateSampleMaliciousEventModel>>() {}); | ||
| events.forEach( | ||
| event -> { | ||
| bulkUpdates.add(new InsertOneModel<>(event)); | ||
| }); | ||
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| this.mClient | ||
| .getDatabase(accountId + "") | ||
| .getCollection("malicious_events", AggregateSampleMaliciousEventModel.class) | ||
| .bulkWrite(bulkUpdates, new BulkWriteOptions().ordered(false)); | ||
| break; | ||
|
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||
| case "smartEvent": | ||
| MaliciousEventModel event = | ||
| mapper.readValue(payload, new TypeReference<MaliciousEventModel>() {}); | ||
| this.mClient | ||
| .getDatabase(accountId + "") | ||
| .getCollection("smart_events", MaliciousEventModel.class) | ||
| .insertOne(event); | ||
| break; | ||
| default: | ||
| throw new IllegalArgumentException("Invalid event type"); | ||
| } | ||
| } | ||
| } |
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