/* * Copyright 2000-2016 Vaadin Ltd. * * Licensed 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 com.vaadin.tests.components.abstractcomponent; import com.vaadin.server.ErrorHandler; import com.vaadin.server.VaadinRequest; import com.vaadin.tests.components.AbstractTestUIWithLog; import com.vaadin.ui.Button; public class ResponseWritingErrorHandling extends AbstractTestUIWithLog { @Override protected void setup(VaadinRequest request) { ErrorHandler errorHandler = new ErrorHandler() { @Override public void error(com.vaadin.server.ErrorEvent event) { String message = event.getThrowable().getMessage(); log(message); } }; Button button = new Button("Throw in beforeClientResponse") { private boolean throwInBeforeClientResponse = false; { addClickListener(new ClickListener() { @Override public void buttonClick(ClickEvent event) { throwInBeforeClientResponse = true; // Make sure beforeClientResponse is called markAsDirty(); } }); } @Override public void beforeClientResponse(boolean initial) { if (throwInBeforeClientResponse) { throwInBeforeClientResponse = false; throw new RuntimeException("Button.beforeClientResponse"); } } }; button.setErrorHandler(errorHandler); addComponent(button); } }