Initial commit

futur-reactor/src/main/java/dev/tommyjs/futur/reactor/ReactorTransformer.java

@@ -0,0 +1,31 @@
+package dev.tommyjs.futur.reactor;
+
+import dev.tommyjs.futur.promise.Promise;
+import org.jetbrains.annotations.NotNull;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class ReactorTransformer {
+
+    public static <T> @NotNull Promise<T> wrapMono(@NotNull Mono<T> mono) {
+        Promise<T> promise = new Promise<>();
+        mono.doOnSuccess(promise::complete).doOnError(promise::completeExceptionally).subscribe();
+        return promise;
+    }
+
+    public static <T> @NotNull Promise<@NotNull List<T>> wrapFlux(@NotNull Flux<T> flux) {
+        Promise<List<T>> promise = new Promise<>();
+        AtomicReference<List<T>> out = new AtomicReference<>(new ArrayList<>());
+
+        flux.doOnNext(out.get()::add).subscribe();
+        flux.doOnComplete(() -> promise.complete(out.get())).subscribe();
+        flux.doOnError(promise::completeExceptionally).subscribe();
+
+        return promise;
+    }
+
+}