Add latency to simulate long database queries.

reactor-app/src/main/java/com/zeenea/experiments/virtualthreads/reactorapp/infrastructure/catalog/CatalogJpaAdapter.java

@@ -9,6 +9,7 @@ import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.scheduler.Schedulers;
 
+import java.time.Duration;
 import java.util.UUID;
 
 @Component
@@ -31,6 +32,7 @@ public class CatalogJpaAdapter implements CatalogPort {
     public Flux<Catalog> getAll() {
         return Mono.fromCallable(catalogJpaRepository::findAll)
                 .subscribeOn(Schedulers.boundedElastic())
+                .delayElement(Duration.ofSeconds(1))
                 .flatMapMany(Flux::fromIterable)
                 .map(CatalogJpaEntity::toDomain);
     }

reactor-app/src/main/java/com/zeenea/experiments/virtualthreads/reactorapp/infrastructure/item/ItemJpaAdapter.java

@@ -9,6 +9,9 @@ import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.scheduler.Schedulers;
 
+import java.time.Duration;
+
+
 @Component
 public class ItemJpaAdapter implements ItemPort {
     private final ItemJpaRepository itemJpaRepository;
@@ -21,6 +24,7 @@ public class ItemJpaAdapter implements ItemPort {
     public Flux<Item> getAll() {
         return Mono.fromCallable(itemJpaRepository::findAll)
                 .subscribeOn(Schedulers.boundedElastic())
+                .delayElement(Duration.ofSeconds(1))
                 .flatMapMany(Flux::fromIterable)
                 .map(ItemJpaEntity::toDomain);
     }