Resolve "Bug prevents volume computation when data length column in Metadata DB is null"

.docs/changelog.md

@@ -2,7 +2,7 @@
 author: Martin Weise
 ---
 
-## v1.5.1 (2024-11-07)
+## v1.5.1 (2024-11-09)
 
 [:simple-gitlab: GitLab Release](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/tags/v1.5.1)
 
@@ -10,6 +10,8 @@ author: Martin Weise
 
 #### Fixes
 
+* Bug where the data volume could not be calculated when the data length column in the Metadata Database is `null`
+  in [#462](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/462).
 * Bug where the schema could not be created manually 
   in [#461](https://gitlab.phaidra.org/fair-data-austria-db-repository/fda-services/-/issues/461).
 

.gitlab-ci.yml

@@ -393,6 +393,10 @@ release-helm:
     refs:
       - /^release-.*/
   when: manual
+  needs:
+    - build-helm
+  dependencies:
+    - build-helm
   before_script:
     - "docker logout ${CI_REGISTRY_URL}"
     - "echo ${CI_REGISTRY_PASSWORD} | docker login --username ${CI_REGISTRY_USER} --password-stdin ${CI_REGISTRY_URL}"

dbrepo-metadata-service/services/src/main/java/at/tuwien/config/MetricsConfig.java

@@ -14,6 +14,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.Objects;
+
 @Log4j2
 @Configuration
 public class MetricsConfig {
@@ -70,7 +72,12 @@ public class MetricsConfig {
                     if (tableRepository.findAll().isEmpty()) {
                         return 0;
                     }
-                    return tableRepository.findAll().stream().map(Table::getDataLength).mapToLong(d -> d).sum();
+                    return tableRepository.findAll()
+                            .stream()
+                            .map(Table::getDataLength)
+                            .filter(Objects::nonNull)
+                            .mapToLong(d -> d)
+                            .sum();
                 })
                 .description("The total volume of available research data")
                 .strongReference(true)