minor change

Author: clausnagel

citydb-cli/src/main/java/org/citydb/cli/importer/ImportController.java

@@ -212,7 +212,7 @@ protected Filter getFilter(DatabaseAdapter adapter) throws ExecutionException {
             FilterOptions filterOptions = getFilterOptions().orElse(null);
             return filterOptions != null && !filterOptions.isEmpty() ?
                     Filter.of(filterOptions, adapter) :
-                    null;
+                    Filter.acceptAll();
         } catch (FilterException e) {
             throw new ExecutionException("Failed to build import filter.", e);
         }

citydb-cli/src/main/java/org/citydb/cli/importer/filter/Filter.java

@@ -41,6 +41,10 @@ public class Filter implements org.citydb.io.reader.filter.Filter {
     private long currentIndex;
     private long count;
 
+    private Filter() {
+        this(null, 0, Long.MAX_VALUE);
+    }
+
     private Filter(List<FilterPredicate> predicates, long startIndex, long limit) {
         this.predicates = predicates;
         this.startIndex = startIndex;
@@ -73,6 +77,15 @@ public static Filter of(FilterOptions options, DatabaseAdapter adapter) throws F
         return new Filter(predicates, startIndex, limit);
     }
 
+    public static Filter acceptAll() {
+        return new Filter() {
+            @Override
+            public Result test(Feature feature) {
+                return Result.ACCEPT;
+            }
+        };
+    }
+
     @Override
     public boolean needsSequentialProcessing() {
         return useCountLimit;

citydb-io-citygml/src/main/java/org/citydb/io/citygml/reader/CityGMLReader.java

@@ -97,6 +97,7 @@ public CityGMLReader(InputFile file, ReadOptions options, CityGMLAdapterContext
 
     @Override
     public void read(Consumer<Feature> consumer) throws ReadException {
+        shouldRun = true;
         if (!isPreprocessed) {
             preprocess();
         }

citydb-io-citygml/src/main/java/org/citydb/io/citygml/reader/CityJSONReader.java

@@ -86,6 +86,7 @@ public CityJSONReader(InputFile file, ReadOptions options, CityGMLAdapterContext
 
     @Override
     public void read(Consumer<Feature> consumer) throws ReadException {
+        shouldRun = true;
         int threads = filter.needsSequentialProcessing() ? 1 :
                 options.getNumberOfThreads() > 0 ?
                         options.getNumberOfThreads() :