added some loggings

src/main/java/org/gesis/dda/publishing/domain/BundlesStreamSource.java

@@ -10,7 +10,7 @@ public interface BundlesStreamSource {
     
     default Set<Metadatum> getAllMetadata(String scopedIdentifier) {
         Set<Metadatum> result;
-        String bundleIdentifier = getReference() + "@@" + scopedIdentifier;
+        String bundleIdentifier = getReference() + "@@" + scopedIdentifier;        
         Optional<Bundle> bundleOptional = getBundlesStream().filter( b -> bundleIdentifier.equals( b.getReference() ) ).findFirst();
         if ( bundleOptional.isPresent() ) {
             result = bundleOptional.get().getMetadata();

src/main/java/org/gesis/dda/wizard/service/FeederService.java

@@ -3,6 +3,7 @@ package org.gesis.dda.wizard.service;
 import java.time.Instant;
 import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Stream;
 
 import javax.inject.Inject;
 
@@ -80,6 +81,7 @@ public class FeederService {
 
         BundlesSource bundlesSourceEntity = bundlesSourceRepository.findByReference(sourceReference);
         log.info("bundlesSourceEntity={}", bundlesSourceEntity);
+        log.info("feeding context={}", feedingContext.toString());
         BundlesStreamSource bundlesStreamSource = feedingContext.getBundlesStreamSource();
 
         BundlesSourceState bundlesSourceState = bundlesSourceEntity.getBundlesSourceState();
@@ -91,16 +93,18 @@ public class FeederService {
             nihis.updateNextIncrementalHarvestingStartInstant(startOfFeedingInstant);
             bundlesSourceEntity.setBundlesSourceState(BundlesSourceState.PROCESSING);
             BundlesSource savedBundlesSourceEntity = bundlesSourceRepository.save(bundlesSourceEntity);
-            BundleState fullIngestionResult = bundlesStreamSource.
-                    getBundlesStream().
-                    map(bundle -> {
+            Stream<Bundle> bundlesStream = bundlesStreamSource.getBundlesStream();
+            BundleState fullIngestionResult = bundlesStream.
+                        map(bundle -> {
                         BundleState result;
-                        
+                        log.info("bundle iterate: {}", bundle.getReference());
                         org.gesis.dda.wizard.domain.Bundle bundleEntity = createOrUpdateBundle(bundle, savedBundlesSourceEntity);
+                        log.info("bundleEntity= {}", bundleEntity.getId());
                         // by now, we have an existing bundleEntity
                         result = feedBundle(feedingContext, bundleEntity, bundle);
                         BundlesSourceEntityDataModificationStrategy dataModificationStrategy = feedingContext.getBundlesSourceEntityDataModificationStrategy();
                         BundlesSource bse = dataModificationStrategy.updateDataOnBundleIngestionResult(savedBundlesSourceEntity, bundle, result);
+                        log.info("BSE= {}", bse.getId());
                         bse = bundlesSourceRepository.save(bse);
                         return result;
                     }).