System datasets available for tunning has been fixed

src/main/java/org/strep/repositories/DatasetRepository.java

@@ -196,5 +196,14 @@ public interface DatasetRepository extends CrudRepository<Dataset, String> {
      */
     @Query(value="SELECT SUM(IF(redistribute,0,1)) FROM license,dataset WHERE license.name=dataset.id AND dataset.name IN (?1)", nativeQuery=true)
     public int checkIfRedistributionIsNotAllowed(Collection<String> datasetNames);
+
+    /**
+     * Get datasets filtered by Name
+     * @param datasetNames The datasets that is going to be combined
+     * @return The list of datasets filtered by name
+     */
+    @Query(value="SELECT dataset.* FROM dataset WHERE dataset.name IN (?1)", nativeQuery=true)
+    public ArrayList<Dataset> findDatasetsByNames(Collection<String> datasetNames);
+
 
 }

src/main/java/org/strep/web/DatasetController.java

@@ -567,16 +567,12 @@ public String filterDatasetsByLicense(Authentication authentication, Model model
         StringBuilder message = new StringBuilder();
         ArrayList<Dataset> allDatasets = new ArrayList<>();
         List<String> filteredDatasets = new ArrayList<>();
-        UserDetails userDetails = (UserDetails) authentication.getPrincipal();
 
-        String username = userDetails.getUsername();
+        datasetRepository.findDatasetsByNames(Arrays.asList(datasets)).forEach(allDatasets::add);
 
-        datasetRepository.getSystemDatasets(username,Dataset.TYPE_SYSTEM).forEach(allDatasets::add);
-
-        for (String datasetName : checkedDatasets) {
-            filteredDatasets.add(datasetName);
-        }
+        filteredDatasets.addAll(Arrays.asList(checkedDatasets));
         ArrayList<License> checkedDatasetsLicenses=licenseRepository.getDatasetLicenses(filteredDatasets);
+
 
         int position = 0;
         boolean exit = false;