Error handling

.classpath

@@ -35,5 +35,10 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry excluding="**" kind="src" output="target/classes" path="target/generated-resources/gwt">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>

.settings/org.eclipse.core.resources.prefs

@@ -5,4 +5,5 @@ encoding//src/main/resources/jasper/calendar_month.jrxml=UTF-8
 encoding//src/main/resources/jasper/calendar_year.jrxml=UTF-8
 encoding//src/test/java=UTF-8
 encoding//src/test/resources=UTF-8
+encoding//target/generated-resources/gwt=UTF-8
 encoding/<project>=UTF-8

.settings/org.eclipse.wst.common.component

@@ -7,7 +7,9 @@
     
     
     
-    <wb-module deploy-name="vaadin-clubhelper-1.0.6-SNAPSHOT">
+    
+    <wb-module deploy-name="vaadin-clubhelper-1.1.1-SNAPSHOT">
+                                                                                
         
         
         
@@ -25,6 +27,7 @@
         
         
         
+        
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
                                                                                 
         
@@ -34,6 +37,7 @@
         
         
         
+        
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
                                                                                 
         
@@ -43,6 +47,7 @@
         
         
         
+        
         <wb-resource deploy-path="/" source-path="/target/m2e-wtp/web-resources"/>
                                                                                 
         
@@ -52,7 +57,10 @@
         
         
         
+        
         <wb-resource deploy-path="/" source-path="/src/main/webapp" tag="defaultRootSource"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/target/generated-resources/gwt"/>
+                                                                                
         
         
         
@@ -70,6 +78,7 @@
         
         
         
+        
         <property name="java-output-path" value="/vaadin-clubhelper/target/classes"/>
                                                                             
     
@@ -79,6 +88,7 @@
     
     
     
+    
     </wb-module>
                                     
 
@@ -88,4 +98,5 @@
 
 
 
+
 </project-modules>

pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>de.kreth.vaadin.clubhelper</groupId>
 	<artifactId>vaadin-clubhelper</artifactId>
-	<version>1.1.0</version>
+	<version>1.1.1-SNAPSHOT</version>
 	<packaging>war</packaging>
 
 	<name>vaadin-clubhelper</name>
@@ -345,6 +345,5 @@
 		<url>https://github.com/markuskreth/vaadin-clubhelper.git</url>
 		<connection>scm:git:git@github.com:markuskreth/vaadin-clubhelper.git</connection>
 		<developerConnection>scm:git:git@github.com:markuskreth/vaadin-clubhelper.git</developerConnection>
-	  <tag>vaadin-clubhelper-1.1.0</tag>
   </scm>
 </project>

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ClubhelperException.java

@@ -0,0 +1,15 @@
+package de.kreth.vaadin.clubhelper.vaadinclubhelper;
+
+public class ClubhelperException extends Exception {
+
+	private static final long serialVersionUID = 8677112373849590712L;
+
+	public ClubhelperException(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+	public ClubhelperException(String message) {
+		super(message);
+	}
+
+}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusiness.java

@@ -10,6 +10,7 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.ClubhelperException;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.business.meldung.EventMeldung;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.AltersgruppeDao;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.ClubEventDao;
@@ -44,15 +45,19 @@ public class EventBusiness {
 		this.current = ev;
 	}
 
-	public void changePersons(Set<Person> selected) {
+	public void changePersons(Set<Person> selected) throws ClubhelperException {
 		if (current != null) {
 			try {
 				clubEventDao.addPersons(current, selected);
 				log.info("Updated {}, {} with participants: {}", current.getCaption(), current.getStart(), selected);
-			} catch (Exception e) {
-				log.error("Unable to update Event {}, {}, {} with participants: {}", current.getId(),
-						current.getCaption(), current.getStart(), selected, e);
-				throw e;
+			}
+			catch (Exception e) {
+				StringBuilder errorMessage = new StringBuilder("Unable to update Event ");
+				errorMessage.append(current.getId());
+				errorMessage.append(", ").append(current.getCaption());
+				errorMessage.append(", ").append(current.getStart());
+				errorMessage.append(" with participants: ").append(selected);
+				throw new ClubhelperException(errorMessage.toString(), e);
 			}
 		}
 	}
@@ -70,7 +75,8 @@ public class EventBusiness {
 					return el;
 				}
 			}
-		} else {
+		}
+		else {
 			altersgruppen.add(e);
 			e.setClubEvent(current);
 		}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/dao/PersonDaoImpl.java

@@ -33,6 +33,7 @@ public class PersonDaoImpl extends AbstractDaoImpl<Person> implements PersonDao
 		super.save(obj);
 	}
 
+	@Transactional
 	public void checkSubEntities(Person obj) {
 		Startpass startPass = obj.getStartpass();
 		if (startPass != null) {
@@ -58,7 +59,8 @@ public class PersonDaoImpl extends AbstractDaoImpl<Person> implements PersonDao
 		c.setChanged(now);
 		if (entityManager.contains(c) || c.hasValidId()) {
 			entityManager.merge(c);
-		} else {
+		}
+		else {
 			c.setCreated(now);
 			entityManager.persist(c);
 		}
@@ -95,7 +97,8 @@ public class PersonDaoImpl extends AbstractDaoImpl<Person> implements PersonDao
 		if (r[1].equals(ignoring)) {
 			p = entityManager.find(Person.class, r[2]);
 			relation = r[3].toString();
-		} else if (r[2].equals(ignoring)) {
+		}
+		else if (r[2].equals(ignoring)) {
 			p = entityManager.find(Person.class, r[1]);
 			relation = r[4].toString();
 		}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/data/ClubEvent.java

@@ -21,20 +21,30 @@ import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.CompetitionType.Type;
 
 // Entity must not be used, this class is persisted by ClubEvent.hbm.xml
 @Entity
+/**
+ * Calendar Event item corresponding to google calendar events.
+ * @author markus
+ *
+ */
 public class ClubEvent extends BasicItem implements EntityAccessor {
 
 	private static final long serialVersionUID = -3600971939167437577L;
 
 	@Id
 	private String id;
+
 	private String location;
+
 	private String iCalUID;
 
 	private String organizerDisplayName;
+
 	@ManyToMany
 	private Set<Person> persons;
+
 	@OneToMany
 	private Set<Altersgruppe> altersgruppen;
+
 	@OneToOne
 	@JoinColumn(name = "id", nullable = true)
 	private CompetitionType competitionType;
@@ -99,7 +109,8 @@ public class ClubEvent extends BasicItem implements EntityAccessor {
 	public Type getType() {
 		if (competitionType != null) {
 			return competitionType.getType();
-		} else {
+		}
+		else {
 			return null;
 		}
 	}
@@ -196,25 +207,29 @@ public class ClubEvent extends BasicItem implements EntityAccessor {
 		if (iCalUID == null) {
 			if (other.iCalUID != null)
 				return false;
-		} else if (!iCalUID.equals(other.iCalUID)) {
+		}
+		else if (!iCalUID.equals(other.iCalUID)) {
 			return false;
 		}
 		if (id == null) {
 			if (other.id != null)
 				return false;
-		} else if (!id.equals(other.id)) {
+		}
+		else if (!id.equals(other.id)) {
 			return false;
 		}
 		if (location == null) {
 			if (other.location != null)
 				return false;
-		} else if (!location.equals(other.location)) {
+		}
+		else if (!location.equals(other.location)) {
 			return false;
 		}
 		if (organizerDisplayName == null) {
 			if (other.organizerDisplayName != null)
 				return false;
-		} else if (!organizerDisplayName.equals(other.organizerDisplayName)) {
+		}
+		else if (!organizerDisplayName.equals(other.organizerDisplayName)) {
 			return false;
 		}
 		return true;
@@ -224,7 +239,8 @@ public class ClubEvent extends BasicItem implements EntityAccessor {
 		if (parse != null) {
 			Instant instant = parse.toInstant();
 			return ZonedDateTime.ofInstant(instant, ZoneId.systemDefault());
-		} else {
+		}
+		else {
 			return null;
 		}
 	}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/ClubhelperErrorDialog.java

@@ -0,0 +1,38 @@
+package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import com.vaadin.shared.ui.ContentMode;
+import com.vaadin.ui.Button;
+import com.vaadin.ui.Label;
+import com.vaadin.ui.UI;
+import com.vaadin.ui.VerticalLayout;
+import com.vaadin.ui.Window;
+
+public class ClubhelperErrorDialog {
+
+	private final Window errorDlg = new Window("Fehler");
+
+	public ClubhelperErrorDialog(String errormessage, Exception exception) {
+		VerticalLayout layout = new VerticalLayout();
+		layout.addComponent(new Label(errormessage));
+		layout.addComponent(new Label(exception.getMessage()));
+		StringWriter out = new StringWriter();
+		PrintWriter writer = new PrintWriter(out);
+		exception.printStackTrace(writer);
+		layout.addComponent(toComponent(out));
+		layout.addComponent(new Button("Schließen", event -> errorDlg.close()));
+		errorDlg.setContent(layout);
+	}
+
+	public Label toComponent(StringWriter out) {
+		Label label = new Label(out.toString());
+		label.setContentMode(ContentMode.PREFORMATTED);
+		return label;
+	}
+
+	public void show(UI ui) {
+		ui.addWindow(errorDlg);
+	}
+}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/CalendarComponent.java

@@ -24,11 +24,14 @@ import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubEvent;
 public class CalendarComponent extends CustomComponent {
 
 	private static final long serialVersionUID = -9152173211931554059L;
-	private transient final Logger log = LoggerFactory.getLogger(getClass());
+
+	private final transient Logger log = LoggerFactory.getLogger(getClass());
+
+	private final transient List<Consumer<ZonedDateTime>> dateUpdateEvents;
 
 	private final ClubEventProvider dataProvider;
-	private Calendar<ClubEvent> calendar;
-	private List<Consumer<ZonedDateTime>> dateUpdateEvents;
+
+	private final Calendar<ClubEvent> calendar;
 
 	public CalendarComponent(ClubEventProvider dataProvider) {
 
@@ -40,7 +43,7 @@ public class CalendarComponent extends CustomComponent {
 
 		calendar.setCaption("Events");
 		calendar.setSizeFull();
-		calendar.addListener(ev -> calendarEvent(ev));
+		calendar.addListener(this::calendarEvent);
 
 		setCompositionRoot(calendar);
 	}
@@ -75,6 +78,11 @@ public class CalendarComponent extends CustomComponent {
 		calendar.markAsDirty();
 	}
 
+	/**
+	 * {@link ClubEvent} provider for vaadin calendar addon.
+	 * @author markus
+	 *
+	 */
 	public static class ClubEventProvider extends BasicItemProvider<ClubEvent> {
 
 		private static final long serialVersionUID = -5415397258827236704L;

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/navigation/HeadView.java

@@ -48,6 +48,7 @@ public class HeadView extends HorizontalLayout {
 	private static final long serialVersionUID = -7915475211371903028L;
 
 	protected transient final Logger log = LoggerFactory.getLogger(getClass());
+
 	protected transient DateTimeFormatter dfMonth = DateTimeFormatter.ofPattern("MMMM uuuu");
 
 	private final ClubEventProvider dataProvider;
@@ -55,9 +56,11 @@ public class HeadView extends HorizontalLayout {
 	private int monthItemId;
 
 	private final Button personLabel;
+
 	protected final Label monthName;
 
 	private final Function<Component, ZonedDateTime> startTime;
+
 	private final Function<Component, ZonedDateTime> endTime;
 
 	private final ClubNavigator navigator;
@@ -104,7 +107,8 @@ public class HeadView extends HorizontalLayout {
 		Person loggedinPerson = securityVerifier.getLoggedinPerson();
 		if (loggedinPerson != null) {
 			personLabel.setCaption(loggedinPerson.getSurname() + ", " + loggedinPerson.getPrename());
-		} else {
+		}
+		else {
 			personLabel.setCaption("");
 		}
 	}
@@ -133,7 +137,8 @@ public class HeadView extends HorizontalLayout {
 					securityVerifier.setLoggedinPerson(null);
 					navigator.navigateTo(ClubhelperViews.MainView.name());
 				});
-			} else {
+			}
+			else {
 				contextMenu.addItem("Anmelden", ev1 -> navigator.navigateTo(ClubhelperViews.LoginUI.name()));
 			}
 			int width = getUI().getPage().getBrowserWindowWidth();
@@ -156,7 +161,8 @@ public class HeadView extends HorizontalLayout {
 			start = startTime.apply(source);
 			end = endTime.apply(source);
 			items = dataProvider.getItems(start, end);
-		} else {
+		}
+		else {
 			start = startTime.apply(source).withDayOfYear(1);
 			end = start.withMonth(12).withDayOfMonth(31);
 			items = dataProvider.getItems(start, end);
@@ -180,7 +186,8 @@ public class HeadView extends HorizontalLayout {
 				if (values.containsKey(day)) {
 					content = values.get(day);
 					content.append("\n");
-				} else {
+				}
+				else {
 					content = new StringBuilder();
 					values.put(day, content);
 				}
@@ -194,7 +201,8 @@ public class HeadView extends HorizontalLayout {
 		String calendarMonth;
 		if (monthOnly) {
 			calendarMonth = dfMonth.format(start);
-		} else {
+		}
+		else {
 			calendarMonth = "Jahr " + start.getYear();
 		}
 
@@ -202,7 +210,8 @@ public class HeadView extends HorizontalLayout {
 			JasperPrint print;
 			if (monthOnly) {
 				print = CalendarCreator.createCalendar(new Date(start.toInstant().toEpochMilli()), values, holidays);
-			} else {
+			}
+			else {
 				print = CalendarCreator.createYearCalendar(start.getYear(), values, holidays);
 			}
 			log.trace("Created Jasper print for {}", calendarMonth);
@@ -215,12 +224,10 @@ public class HeadView extends HorizontalLayout {
 			window.setHeight("90%");
 			personLabel.getUI().addWindow(window);
 			log.trace("Added pdf window for {}", calendarMonth);
-		} catch (JRException e) {
+		}
+		catch (JRException | IOException | RuntimeException e) {
 			log.error("Error Creating Jasper Report for {}", calendarMonth, e);
 			Notification.show("Fehler bei PDF: " + e);
-		} catch (IOException e1) {
-			log.error("Error Creating Jasper Report for {}", calendarMonth, e1);
-			Notification.show("Fehler bei PDF: " + e1);
 		}
 	}
 
@@ -239,13 +246,16 @@ public class HeadView extends HorizontalLayout {
 		exec.execute(() -> {
 			try {
 				JasperExportManager.exportReportToPdfStream(print, out);
-			} catch (JRException e) {
+			}
+			catch (JRException e) {
 				log.error("Error on Export to Pdf.", e);
 				throw new RuntimeException(e);
-			} finally {
+			}
+			finally {
 				try {
 					out.close();
-				} catch (IOException e) {
+				}
+				catch (IOException e) {
 					log.warn("Error closing Jasper output stream.", e);
 				}
 			}

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/navigation/LoginUI.java

@@ -18,9 +18,11 @@ import de.kreth.vaadin.clubhelper.vaadinclubhelper.security.SecurityVerifier;
 public class LoginUI extends VerticalLayout implements View {
 
 	private static final long serialVersionUID = 4339018452507960084L;
+
 	private final Logger logger = LoggerFactory.getLogger(getClass());
 
 	private Navigator navigator;
+
 	private String parameters;
 
 	public LoginUI(PersonDao personDao, SecurityVerifier securityGroupVerifier) {
@@ -35,8 +37,8 @@ public class LoginUI extends VerticalLayout implements View {
 				Person loggedin = personDao.findLoginUser(username, password);
 				securityGroupVerifier.setLoggedinPerson(loggedin);
 				navigator.navigateTo(ClubhelperViews.MainView.name() + '/' + parameters);
-			} catch (final Exception ex) {
-				ex.printStackTrace();
+			}
+			catch (final Exception ex) {
 				logger.error("Error on login for User={}", e.getLoginParameter("username"), ex);
 				String message = "Incorrect user or password for " + e.getLoginParameter("username") + "\n"
 						+ ex.getMessage();

src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/navigation/MainView.java

@@ -11,12 +11,14 @@ import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;
 import com.vaadin.ui.Grid.SelectionMode;
 import com.vaadin.ui.VerticalLayout;
 
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.ClubhelperException;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.business.EventBusiness;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.GroupDao;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.PersonDao;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubEvent;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.Person;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.security.SecurityVerifier;
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.ClubhelperErrorDialog;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components.PersonGrid;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components.SingleEventView;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.navigation.ClubhelperNavigation.ClubNavigator;
@@ -24,14 +26,19 @@ import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.navigation.ClubhelperNavig
 public abstract class MainView extends VerticalLayout implements View {
 
 	private static final long serialVersionUID = 4831071242146146399L;
+
 	protected final Logger LOGGER = LoggerFactory.getLogger(getClass());
 
 	private final PersonDao personDao;
+
 	private final GroupDao groupDao;
+
 	protected final EventBusiness eventBusiness;
+
 	protected final SecurityVerifier securityVerifier;
 
 	protected PersonGrid personGrid;
+
 	protected SingleEventView eventView;
 
 	protected ClubNavigator navigator;
@@ -49,16 +56,19 @@ public abstract class MainView extends VerticalLayout implements View {
 		if (this.navigator == null) {
 			initUI(event);
 			LOGGER.info("Loaded UI and started fetch of Events");
-		} else {
+		}
+		else {
 			if (securityVerifier.isLoggedin()) {
 				LOGGER.info("{} already initialized - opening Person View.", getClass().getName());
 				ClubEvent current = eventBusiness.getCurrent();
 				openDetailForEvent(current);
-			} else {
+			}
+			else {
 				LOGGER.info("{} already initialized - but not loggedin.", getClass().getName());
 				detailClosed();
 			}
 		}
+
 	}
 
 	public void initUI(ViewChangeEvent event) {
@@ -79,7 +89,16 @@ public abstract class MainView extends VerticalLayout implements View {
 	private void personSelectionChange(SelectionEvent<Person> ev) {
 		Set<Person> selected = ev.getAllSelectedItems();
 		LOGGER.debug("Selection changed to: {}", selected);
-		eventBusiness.changePersons(selected);
+		try {
+			eventBusiness.changePersons(selected);
+		}
+		catch (ClubhelperException e) {
+			LOGGER.error("Error storing Persons.", e);
+
+			String text = "Fehler beim Speichern der Personen dieser Veranstaltung";
+			new ClubhelperErrorDialog(text, e).show(getUI());
+
+		}
 	}
 
 	public void detailClosed() {

src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/EventBusinessSpringTest.java

@@ -20,6 +20,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit.jupiter.SpringExtension;
 
+import de.kreth.vaadin.clubhelper.vaadinclubhelper.ClubhelperException;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.TestDatabaseHelper;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubEvent;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.ClubeventHasPerson;
@@ -31,6 +32,7 @@ import de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.tests.TestConfiguration;
 class EventBusinessSpringTest {
 
 	private List<Person> persons;
+
 	private ClubEvent event;
 
 	@Autowired
@@ -94,11 +96,27 @@ class EventBusinessSpringTest {
 	@Disabled
 	void testAddPersonsToEvent() {
 		assertEquals(0, all.getResultList().size());
-		testDatabaseHelper.transactional(() -> eventBusiness.changePersons(new HashSet<>(persons.subList(0, 1))));
-		testDatabaseHelper.transactional(() -> eventBusiness.changePersons(new HashSet<>(persons.subList(0, 2))));
+		try {
+			transactional(() -> eventBusiness.changePersons(new HashSet<>(persons.subList(0, 1))));
+			transactional(() -> eventBusiness.changePersons(new HashSet<>(persons.subList(0, 2))));
+		}
+		catch (Exception e) {
+
+		}
 
 		List<ClubeventHasPerson> result = all.getResultList();
 		assertEquals(2, result.size());
 	}
 
+	private void transactional(ThrowingRunnable<ClubhelperException> object) {
+		testDatabaseHelper.transactional(() -> {
+			try {
+				object.run();
+			}
+			catch (ClubhelperException e) {
+				throw new RuntimeException(e);
+			}
+		});
+	}
+
 }

src/test/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/business/ThrowingRunnable.java

@@ -0,0 +1,6 @@
+package de.kreth.vaadin.clubhelper.vaadinclubhelper.business;
+
+public interface ThrowingRunnable<E extends Exception> {
+
+	void run() throws E;
+}