fixed parent selector

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/Util.java

@@ -15,7 +15,6 @@ import static java.lang.System.Logger.Level.*;
 import static java.lang.System.Logger.Level.WARNING;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
-import com.xrbpowered.jparsedown.JParsedown;
 import de.srsoftware.tools.Mappable;
 import de.srsoftware.tools.Query;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
@@ -27,12 +26,13 @@ import java.net.URI;
 import java.net.URL;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.regex.Pattern;
 import org.json.JSONObject;
 
 public class Util {
@@ -188,4 +188,19 @@ jspreadsheet(document.getElementById('spreadsheet'), {
 	public static String dateTimeOf(long epochMilis){
 		return LocalDateTime.ofInstant(Instant.ofEpochMilli(epochMilis), ZoneId.systemDefault()).format(TIME_FORMATTER);
 	}
+
+	public static String toJson(ResultSet rs) {
+		try {
+			Map<String,Object> map = new HashMap<>();
+			var meta = rs.getMetaData();
+			for (int col = 1; col <= meta.getColumnCount(); col++) {
+				var key = meta.getColumnName(col);
+				var val = rs.getObject(col);
+				map.put(key, val);
+			}
+			return new JSONObject(map).toString();
+		} catch (SQLException e){
+			return e.getMessage();
+		}
+	}
 }