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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.myfaces.tobago.example.test;
import org.apache.commons.lang.exception.ExceptionUtils;
import javax.faces.FacesException;
import javax.faces.application.FacesMessage;
import javax.faces.application.NavigationHandler;
import javax.faces.context.ExceptionHandler;
import javax.faces.context.ExceptionHandlerWrapper;
import javax.faces.context.FacesContext;
import javax.faces.event.ExceptionQueuedEvent;
import javax.faces.event.ExceptionQueuedEventContext;
import java.util.Iterator;
public class TestExceptionHandler extends ExceptionHandlerWrapper {
private ExceptionHandler wrapped;
public TestExceptionHandler(final ExceptionHandler wrapped) {
this.wrapped = wrapped;
}
@Override
public ExceptionHandler getWrapped() {
return wrapped;
}
@Override
public void handle() throws FacesException {
final Iterator<ExceptionQueuedEvent> iterator = getUnhandledExceptionQueuedEvents().iterator();
while (iterator.hasNext()) {
final ExceptionQueuedEvent event = iterator.next();
final ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();
final Throwable cause = ExceptionUtils.getRootCause(context.getException());
if (cause instanceof ErrorTestException) {
final FacesContext facesContext = FacesContext.getCurrentInstance();
final NavigationHandler nav = facesContext.getApplication().getNavigationHandler();
try {
facesContext.addMessage(null, new FacesMessage("The expected exception was thrown!"));
nav.handleNavigation(facesContext, null, "/test/error/display-exception.xhtml");
facesContext.renderResponse();
} finally {
iterator.remove();
}
}
}
getWrapped().handle();
}
}