Add Tagging usecase

2-Application/src/main/java/tag/TaggingUseCase.java

@@ -0,0 +1,21 @@
+package tag;
+
+import link.LinkUrl;
+
+import java.util.Set;
+
+public class TaggingUseCase {
+
+	TagMatcherRepository tagMatcherRepository;
+
+	public TaggingUseCase(TagMatcherRepository tagMatcherRepository) {
+		this.tagMatcherRepository = tagMatcherRepository;
+	}
+
+	public Set<Tag> getTagsFor(LinkUrl url) {
+		Set<Tag> result = Set.of();
+		tagMatcherRepository.getTagMatchers().forEach(tagMatcher -> tagMatcher.ifMatches(url).addTo(result));
+		return result;
+	}
+
+}