mindol1004/Java-Spring-CRQS-Eventsourcing-Microservice
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feature: add bank account mongo projection handle events methods

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Alexander
2022-04-14 10:33:21 +03:00
parent fbab3a0f23
commit e11014dfb7
2 changed files with 62 additions and 1 deletions
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53
src/main/java/com/eventsourcing/bankAccount/projection/BankAccountMongoProjection.java
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@@ -1,8 +1,14 @@
package com.eventsourcing.bankAccount.projection;
import com.eventsourcing.bankAccount.events.AddressUpdatedEvent;
import com.eventsourcing.bankAccount.events.BalanceDepositedEvent;
import com.eventsourcing.bankAccount.events.BankAccountCreatedEvent;
import com.eventsourcing.bankAccount.events.EmailChangedEvent;
import com.eventsourcing.es.Event;
import com.eventsourcing.es.Projection;
import com.eventsourcing.es.SerializerUtils;
import com.eventsourcing.exceptions.UnknownEventTypeException;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
@@ -17,7 +23,7 @@ import java.util.Arrays;
@Service
@Slf4j
@RequiredArgsConstructor
public class BankAccountMongoProjection {
public class BankAccountMongoProjection implements Projection {
@Value(value = "${microservice.kafka.topics.bank-account-event-store:bank-account-event-store}")
private String bankAccountTopicName;
@@ -32,6 +38,7 @@ public class BankAccountMongoProjection {
try {
final Event[] events = SerializerUtils.deserializeEventsFromJsonBytes(data);
Arrays.stream(events).toList().forEach(this::when);
ack.acknowledge();
log.info("ack events: {}", Arrays.toString(events));
} catch (Exception e) {
@@ -40,4 +47,48 @@ public class BankAccountMongoProjection {
log.error("bankAccountMongoProjectionListener: {}", e.getMessage());
}
}
@Override
public void when(Event event) {
final var aggregateId = event.getAggregateId();
log.info("(when) >>>>> aggregateId: {}", aggregateId);
switch (event.getEventType()) {
case BankAccountCreatedEvent.BANK_ACCOUNT_CREATED_V1 ->
handle(SerializerUtils.deserializeFromJsonBytes(event.getData(), BankAccountCreatedEvent.class));
case EmailChangedEvent.EMAIL_CHANGED_V1 ->
handle(SerializerUtils.deserializeFromJsonBytes(event.getData(), EmailChangedEvent.class));
case AddressUpdatedEvent.ADDRESS_UPDATED_V1 ->
handle(SerializerUtils.deserializeFromJsonBytes(event.getData(), AddressUpdatedEvent.class));
case BalanceDepositedEvent.BALANCE_DEPOSITED ->
handle(SerializerUtils.deserializeFromJsonBytes(event.getData(), BalanceDepositedEvent.class));
default -> throw new UnknownEventTypeException(event.getEventType());
}
}
private void handle(BankAccountCreatedEvent event) {
log.info("(when) BankAccountCreatedEvent: {}, aggregateID: {}", event, event.getAggregateId());
// final var document = BankAccountDocument.builder()
// .aggregateId(event.getAggregateId())
// .email(event.getEmail())
// .address(event.getAddress())
// .userName(event.getUserName())
// .balance(BigDecimal.valueOf(0))
// .build();
}
private void handle(EmailChangedEvent event) {
log.info("(when) EmailChangedEvent: {}, aggregateID: {}", event, event.getAggregateId());
}
private void handle(AddressUpdatedEvent event) {
log.info("(when) AddressUpdatedEvent: {}, aggregateID: {}", event, event.getAggregateId());
}
private void handle(BalanceDepositedEvent event) {
log.info("(when) BalanceDepositedEvent: {}, aggregateID: {}", event, event.getAggregateId());
}
}

10
src/main/java/com/eventsourcing/exceptions/UnknownEventTypeException.java Normal file
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@@ -0,0 +1,10 @@
package com.eventsourcing.exceptions;
public class UnknownEventTypeException extends RuntimeException {
public UnknownEventTypeException() {
}
public UnknownEventTypeException(String eventType) {
super("unknown event type: " + eventType);
}
}