ical extension

src/main/java/de/jottyfan/bico/modules/ical/IcalController.java

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+package de.jottyfan.bico.modules.ical;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import de.jottyfan.bico.modules.CommonController;
+import jakarta.servlet.http.HttpServletResponse;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Controller
+public class IcalController extends CommonController{
+
+	@Autowired
+	private IcalService service;
+
+	@GetMapping("/ical")
+	public void getIcalExport(HttpServletResponse response) throws Exception {
+		response.setHeader("Content-Disposition", "attachment; filename=bico.ical");
+		response.setContentType("application/octet-stream");
+		response.setHeader("Content-Transfer-Encoding", "binary");
+		response.setHeader("Accept-Ranges", "bytes");
+		service.createCalendar(response.getOutputStream());
+		response.flushBuffer();
+	}
+}

src/main/java/de/jottyfan/bico/modules/ical/IcalRepository.java

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+package de.jottyfan.bico.modules.ical;
+
+import static de.jottyfan.bico.db.Tables.V_CALENDAR;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.jooq.DSLContext;
+import org.jooq.SelectWhereStep;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+import de.jottyfan.bico.db.tables.records.VCalendarRecord;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Repository
+public class IcalRepository {
+	private static final Logger LOGGER = LogManager.getLogger(IcalRepository.class);
+
+	@Autowired
+	private DSLContext jooq;
+
+	public VCalendarRecord[] getAllDates() {
+		SelectWhereStep<VCalendarRecord> sql = jooq.selectFrom(V_CALENDAR);
+		LOGGER.trace(sql);
+		return sql.fetchArray();
+	}
+}

src/main/java/de/jottyfan/bico/modules/ical/IcalService.java

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+package de.jottyfan.bico.modules.ical;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import de.jottyfan.bico.db.tables.records.VCalendarRecord;
+import net.fortuna.ical4j.data.CalendarOutputter;
+import net.fortuna.ical4j.model.Calendar;
+import net.fortuna.ical4j.model.component.VEvent;
+import net.fortuna.ical4j.validate.ValidationException;
+
+/**
+ *
+ * @author jotty
+ *
+ */
+@Service
+public class IcalService {
+
+	@Autowired
+	private IcalRepository repository;
+
+	public void createCalendar(OutputStream stream) throws ValidationException, IOException {
+		Calendar calendar = new Calendar();
+		CalendarOutputter out = new CalendarOutputter();
+		for (VCalendarRecord record : repository.getAllDates()) {
+			String summary = record.getFullname();
+			LocalDateTime startEvent = LocalDateTime.of(record.getSlotDay(), LocalTime.of(10, 30));
+			LocalDateTime endEvent = LocalDateTime.of(record.getSlotDay(), LocalTime.of(12, 0));
+			VEvent event = new VEvent(startEvent, endEvent, summary);
+			calendar.add(event);
+		}
+		out.output(calendar, stream);;
+	}
+}