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/*
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* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package br.dsw.exception;
import javax.faces.FacesException;
import javax.faces.application.NavigationHandler;
import javax.faces.context.ExceptionHandler;
import javax.faces.context.ExceptionHandlerWrapper;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.event.ExceptionQueuedEvent;
import javax.faces.event.ExceptionQueuedEventContext;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.application.FacesMessage;
public class T2ExceptionHandler extends ExceptionHandlerWrapper {
private ExceptionHandler wrapped;
//Obtém uma instância do FacesContext
final FacesContext facesContext = FacesContext.getCurrentInstance();
//Obtém um mapa do FacesContext
final Map requestMap = facesContext.getExternalContext().getRequestMap();
//Obtém o estado atual da navegação entre páginas do JSF
final NavigationHandler navigationHandler = facesContext.getApplication().getNavigationHandler();
//Declara o construtor que recebe uma exceptio do tipo ExceptionHandler como parâmetro
T2ExceptionHandler(ExceptionHandler exception) {
this.wrapped = exception;
}
//Sobrescreve o método ExceptionHandler que retorna a "pilha" de exceções
@Override
public ExceptionHandler getWrapped() {
return wrapped;
}
@Override
public void handle() throws FacesException {
final Iterator iterator = getUnhandledExceptionQueuedEvents().iterator();
while (iterator.hasNext()) {
ExceptionQueuedEvent event = (ExceptionQueuedEvent) iterator.next();
ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();
Throwable exception = context.getException();
try {
requestMap.put("exceptionMessage", exception.getMessage());
String error = exception.getMessage();
try {
String[] errors = exception.getMessage().split(":", 3);
error = errors[errors.length];
} catch (Exception e) {
}
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Erro", exception.getMessage().split(":", 3)[2]));
facesContext.renderResponse();
} finally {
iterator.remove();
}
}
getWrapped().handle();
}
}
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