Files
Java-Spring-CRQS-Eventsourc…/src/main/java/com/eventsourcing/bankAccount/queries/BankAccountQueryHandler.java
2022-04-16 10:38:54 +03:00

60 lines
2.6 KiB
Java

package com.eventsourcing.bankAccount.queries;
import com.eventsourcing.bankAccount.domain.BankAccountAggregate;
import com.eventsourcing.bankAccount.domain.BankAccountDocument;
import com.eventsourcing.bankAccount.dto.BankAccountResponseDTO;
import com.eventsourcing.bankAccount.repository.BankAccountMongoRepository;
import com.eventsourcing.es.EventStoreDB;
import com.eventsourcing.mappers.BankAccountMapper;
import io.github.resilience4j.circuitbreaker.annotation.CircuitBreaker;
import io.github.resilience4j.retry.annotation.Retry;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.sleuth.annotation.NewSpan;
import org.springframework.cloud.sleuth.annotation.SpanTag;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import java.util.Optional;
@Slf4j
@RequiredArgsConstructor
@Service
public class BankAccountQueryHandler implements BankAccountQueryService {
private final EventStoreDB eventStoreDB;
private final BankAccountMongoRepository mongoRepository;
private static final String SERVICE_NAME = "microservice";
@Override
@NewSpan
@Retry(name = SERVICE_NAME)
@CircuitBreaker(name = SERVICE_NAME)
public BankAccountResponseDTO handle(@SpanTag("query") GetBankAccountByIDQuery query) {
Optional<BankAccountDocument> optionalDocument = mongoRepository.findByAggregateId(query.aggregateID());
if (optionalDocument.isPresent()) {
return BankAccountMapper.bankAccountResponseDTOFromDocument(optionalDocument.get());
}
final var aggregate = eventStoreDB.load(query.aggregateID(), BankAccountAggregate.class);
final var savedDocument = mongoRepository.save(BankAccountMapper.bankAccountDocumentFromAggregate(aggregate));
log.info("(GetBankAccountByIDQuery) savedDocument: {}", savedDocument);
final var bankAccountResponseDTO = BankAccountMapper.bankAccountResponseDTOFromAggregate(aggregate);
log.info("(GetBankAccountByIDQuery) response: {}", bankAccountResponseDTO);
return bankAccountResponseDTO;
}
@Override
@NewSpan
@Retry(name = SERVICE_NAME)
@CircuitBreaker(name = SERVICE_NAME)
public Page<BankAccountResponseDTO> handle(@SpanTag("query") FindAllOrderByBalance query) {
return mongoRepository.findAll(PageRequest.of(query.page(), query.size(), Sort.by("balance")))
.map(BankAccountMapper::bankAccountResponseDTOFromDocument);
}
}