Revision b5d06161
Added by Andreas Kohlbecker over 5 years ago
| src/main/java/eu/etaxonomy/cdm/vaadin/event/error/DelegatingErrorHandler.java | ||
|---|---|---|
| 12 | 12 |
import java.util.HashMap; |
| 13 | 13 |
import java.util.Map; |
| 14 | 14 |
|
| 15 |
import org.apache.log4j.Logger; |
|
| 16 |
|
|
| 15 | 17 |
import com.vaadin.server.ErrorEvent; |
| 16 | 18 |
import com.vaadin.server.ErrorHandler; |
| 17 | 19 |
import com.vaadin.ui.Notification; |
| 18 | 20 |
|
| 19 | 21 |
/** |
| 22 |
* Vaadin allows setting an com.vaadin.server.ErrorHandler for UIs and components. |
|
| 23 |
* The caveat with this built in approach is that there is only one {@link com.vaadin.server.ErrorHandler}
|
|
| 24 |
* for any type of errors. This <code>DelegatingErrorHandler</code> allows registering handlers for specific types of errors. |
|
| 25 |
* |
|
| 26 |
* see https://dev.e-taxonomy.eu/redmine/issues/7241 |
|
| 27 |
* |
|
| 20 | 28 |
* @author freimeier |
| 21 | 29 |
* @date 26.02.2018 |
| 22 | 30 |
* |
| 23 | 31 |
*/ |
| 24 | 32 |
public class DelegatingErrorHandler implements ErrorHandler{
|
| 33 |
|
|
| 34 |
private static final long serialVersionUID = 3378605204517477112L; |
|
| 35 |
|
|
| 25 | 36 |
Map<Class<? extends Exception>, ErrorTypeHandler<? extends Exception>> handlerMap = new HashMap<>(); |
| 26 | 37 |
|
| 27 | 38 |
public <E extends Exception> void registerHandler(Class<E> type, ErrorTypeHandler<E> handler) {
|
| ... | ... | |
| 33 | 44 |
*/ |
| 34 | 45 |
@Override |
| 35 | 46 |
public void error(ErrorEvent event) {
|
| 36 |
System.out.println(event.getThrowable().getCause().getClass()); |
|
| 37 |
Throwable cause = event.getThrowable().getCause(); |
|
| 38 |
if(handlerMap.get(cause.getClass()) != null){
|
|
| 39 |
handlerMap.get(cause.getClass()).error(event); |
|
| 47 |
|
|
| 48 |
Class<? extends Throwable> errorClass = event.getThrowable().getCause().getClass(); |
|
| 49 |
Logger.getLogger(this.getClass()).debug(errorClass); |
|
| 50 |
if(handlerMap.get(errorClass) != null){
|
|
| 51 |
handlerMap.get(errorClass).error(event); |
|
| 40 | 52 |
} else {
|
| 41 | 53 |
Notification.show(event.getThrowable().getMessage()); |
| 42 | 54 |
} |
| src/main/java/eu/etaxonomy/cdm/vaadin/event/error/ErrorTypeHandler.java | ||
|---|---|---|
| 13 | 13 |
import com.vaadin.server.ErrorHandler; |
| 14 | 14 |
|
| 15 | 15 |
/** |
| 16 |
* see {@link DelegatingErrorHandler}
|
|
| 17 |
* |
|
| 16 | 18 |
* @author freimeier |
| 17 | 19 |
* @date 26.02.2018 |
| 18 | 20 |
* |
| 19 | 21 |
*/ |
| 20 | 22 |
public abstract class ErrorTypeHandler<E extends Exception> implements ErrorHandler {
|
| 21 | 23 |
|
| 24 |
private static final long serialVersionUID = 1782060185842059311L; |
|
| 25 |
|
|
| 22 | 26 |
/* (non-Javadoc) |
| 23 | 27 |
* @see com.vaadin.server.ErrorHandler#error(com.vaadin.server.ErrorEvent) |
| 24 | 28 |
*/ |
| src/main/java/eu/etaxonomy/cdm/vaadin/event/error/HibernateSystemErrorHandler.java | ||
|---|---|---|
| 23 | 23 |
*/ |
| 24 | 24 |
public class HibernateSystemErrorHandler extends ErrorTypeHandler<HibernateSystemException>{
|
| 25 | 25 |
|
| 26 |
private static final long serialVersionUID = -5703485298578474572L; |
|
| 27 |
|
|
| 26 | 28 |
/* (non-Javadoc) |
| 27 | 29 |
* @see eu.etaxonomy.cdm.vaadin.util.errorhandler.ErrorTypeHandler#handleError(com.vaadin.server.ErrorEvent) |
| 28 | 30 |
*/ |
Also available in: Unified diff
ref #7241 documentation, adding serial ids, fixing logging