Arsnael commented on code in PR #2991:
URL: https://github.com/apache/james-project/pull/2991#discussion_r3044218990
##########
event-bus/api/src/main/java/org/apache/james/events/EventSerializer.java:
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@@ -22,30 +22,37 @@
import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.List;
-import java.util.Optional;
public interface EventSerializer {
- Optional<String> toJson(Event event);
+ SerializationResult toJson(Event event);
- Optional<String> toJson(Collection<Event> event);
+ SerializationResult toJson(Collection<Event> event);
- default Optional<byte[]> toJsonBytes(Event event) {
- return toJson(event).map(json ->
json.getBytes(StandardCharsets.UTF_8));
+ default SerializationBytesResult toJsonBytes(Event event) {
+ return switch(toJson(event)) {
+ case SerializationResult.Success success -> new
SerializationBytesResult.Success(success.json().getBytes(StandardCharsets.UTF_8));
+ case SerializationResult.Failure failure -> new
SerializationBytesResult.Failure(failure.throwingMessage());
+ default -> new SerializationBytesResult.Failure("Could not
serialize event: " + event);
+ };
}
- default Optional<byte[]> toJsonBytes(Collection<Event> event) {
- return toJson(event).map(json ->
json.getBytes(StandardCharsets.UTF_8));
+ default SerializationBytesResult toJsonBytes(Collection<Event> event) {
+ return switch(toJson(event)) {
+ case SerializationResult.Success success -> new
SerializationBytesResult.Success(success.json().getBytes(StandardCharsets.UTF_8));
Review Comment:
I honestly hesitated generifying this. I'm more afraid of adding complexity
to the caller as a result. But fair point.
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