Add VideoTitle and VideoDescription Value Objects examples:

* I've go for doing the conversion between primitive types to value objects inside the Application Service. We're used to to do so in the Command/Query handler, and when we don't have a command/query bus we tend to do so in the entrypoint controller. However, I think this way we avoid some boilerplate on the different entrypoints a use case might have, and we avoid coupling our infrastructure to all the internal structure of our domain. What do you think?
* Move `tv.codely.Starter` to `tv.codely.context.video.module.video.infrastructure.VideoPublisherCliController` in order to serve as entrypoint controller through CLI

Author: JavierCane

build.gradle

@@ -30,5 +30,5 @@ test {
 }
 
 application {
-    mainClassName = "tv.codely.Starter"
+    mainClassName = "tv.codely.context.video.module.video.infrastructure.VideoPublisherCliController"
 }

src/main/java/tv/codely/context/video/module/video/application/publish/VideoPublisher.java

@@ -1,6 +1,8 @@
 package tv.codely.context.video.module.video.application.publish;
 
 import tv.codely.context.video.module.video.domain.Video;
+import tv.codely.context.video.module.video.domain.VideoDescription;
+import tv.codely.context.video.module.video.domain.VideoTitle;
 import tv.codely.shared.domain.EventBus;
 
 public final class VideoPublisher {
@@ -10,10 +12,12 @@ public VideoPublisher(EventBus eventBus) {
         this.eventBus = eventBus;
     }
 
-    public void publish(String title, String description) {
+    public void publish(String rawTitle, String rawDescription) {
+        final var title = new VideoTitle(rawTitle);
+        final var description = new VideoDescription(rawDescription);
+
         final var video = Video.publish(title, description);
 
         eventBus.publish(video.pullDomainEvents());
     }
-
 }

src/main/java/tv/codely/context/video/module/video/domain/Video.java

@@ -3,18 +3,18 @@
 import tv.codely.shared.domain.AggregateRoot;
 
 public final class Video extends AggregateRoot {
-    private final String title;
-    private final String description;
+    private final VideoTitle title;
+    private final VideoDescription description;
 
-    private Video(String title, String description) {
+    private Video(VideoTitle title, VideoDescription description) {
         this.title = title;
         this.description = description;
     }
 
-    public static Video publish(String title, String description) {
+    public static Video publish(VideoTitle title, VideoDescription description) {
         var video = new Video(title, description);
 
-        var videoCreated = new VideoPublished(title, description);
+        var videoCreated = new VideoPublished(title.value(), description.value());
 
         video.record(videoCreated);
 

src/main/java/tv/codely/context/video/module/video/domain/VideoDescription.java

@@ -0,0 +1,13 @@
+package tv.codely.context.video.module.video.domain;
+
+public final class VideoDescription {
+    private final String value;
+
+    public VideoDescription(final String value) {
+        this.value = value;
+    }
+
+    public String value() {
+        return value;
+    }
+}

src/main/java/tv/codely/context/video/module/video/domain/VideoTitle.java

@@ -0,0 +1,13 @@
+package tv.codely.context.video.module.video.domain;
+
+public final class VideoTitle {
+    private final String value;
+
+    public VideoTitle(String value) {
+        this.value = value;
+    }
+
+    public String value() {
+        return value;
+    }
+}

src/main/java/tv/codely/Starter.java renamed to src/main/java/tv/codely/context/video/module/video/infrastructure/VideoPublisherCliController.java

@@ -1,4 +1,4 @@
-package tv.codely;
+package tv.codely.context.video.module.video.infrastructure;
 
 import tv.codely.context.notification.module.push.application.create.SendPushToSubscribersOnVideoPublished;
 import tv.codely.context.video.module.video.application.publish.VideoPublisher;
@@ -8,7 +8,7 @@
 
 import java.util.Set;
 
-public class Starter {
+public class VideoPublisherCliController {
     public static void main(String[] args) {
         final Set<DomainEventSubscriber> subscribers = Set.of(
             new SendPushToSubscribersOnVideoPublished()

src/test/java/tv/codely/StarterShould.java

@@ -0,0 +1,27 @@
+package tv.codely.context.video.module.video.application.publish;
+
+import org.junit.jupiter.api.Test;
+import tv.codely.context.notification.module.push.application.create.SendPushToSubscribersOnVideoPublished;
+import tv.codely.shared.application.DomainEventSubscriber;
+import tv.codely.shared.domain.EventBus;
+import tv.codely.shared.infrastructure.bus.ReactorEventBus;
+
+import java.util.Set;
+
+final class VideoPublisherShould {
+	@Test
+	void publish_the_video_published_domain_event() {
+		final Set<DomainEventSubscriber> subscribers = Set.of(
+			new SendPushToSubscribersOnVideoPublished()
+		);
+		final EventBus eventBus = new ReactorEventBus(subscribers);
+		final var videoPublisher = new VideoPublisher(eventBus);
+
+		final var videoTitle = "\uD83C\uDF89 New YouTube.com/CodelyTV video title";
+		final var videoDescription = "This should be the video description \uD83D\uDE42";
+
+		videoPublisher.publish(videoTitle, videoDescription);
+
+	}
+
+}