add job service to be able to cancel plot requests

performanceDb/src/main/java/org/lucares/performance/db/PerformanceDb.java

@@ -16,6 +16,7 @@ import java.util.concurrent.TimeUnit;
 import java.util.stream.Stream;
 
 import org.lucares.collections.LongList;
+import org.lucares.pdb.api.AbortException;
 import org.lucares.pdb.api.DateTimeRange;
 import org.lucares.pdb.api.GroupResult;
 import org.lucares.pdb.api.Query;
@@ -192,6 +193,7 @@ public class PerformanceDb implements AutoCloseable {
     private Result toResult(final Grouping grouping) {
         final List<GroupResult> groupResults = new ArrayList<>();
         for (final Group group : grouping.getGroups()) {
+            AbortException.abortIfInterrupted();
             final Stream<LongList> stream = PdbFile.toStream(group.getFiles(), dataStore.getDiskStorage());
             final GroupResult groupResult = new GroupResult(stream, group.getTags());
             groupResults.add(groupResult);