omit empty notifications

1 files changed, 4 insertions, 2 deletions

diff --git a/src/main/java/eu/ortlepp/notificationsender/NotificationHandler.java b/src/main/java/eu/ortlepp/notificationsender/NotificationHandler.java
index 17b4a46..6a93992 100644
--- a/src/main/java/eu/ortlepp/notificationsender/NotificationHandler.java
+++ b/src/main/java/eu/ortlepp/notificationsender/NotificationHandler.java
@@ -78,7 +78,7 @@ public class NotificationHandler implements RequestHandler<Map<String, Object>,
 
 
   /**
-   * Extract the notifications from the input JSON.
+   * Extract the notifications from the input JSON. Omit empty notifications.
    *
    * @param body The input JSON
    * @return The extracted messages; empty list if an error occurred while parsing the JSON
@@ -87,7 +87,9 @@ public class NotificationHandler implements RequestHandler<Map<String, Object>,
     try {
       Notifications notifications =
           new ObjectMapper().readValue(body.toString(), Notifications.class);
-      return Arrays.asList(notifications.messages());
+      var messages = new ArrayList<>(Arrays.asList(notifications.messages()));
+      messages.removeIf(message -> message.trim().isEmpty());
+      return messages;
     } catch (JsonProcessingException ex) {
       logger.log("parsing input JSON failed : " + ex.getMessage());
       return new ArrayList<>();