/*
* Copyright 2000-2014 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;
import java.util.Date;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.AbstractOrderedLayout;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.CustomComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;
public class PerformanceTestLabelsAndOrderedLayouts extends CustomComponent {
private final AbstractOrderedLayout main;
private final AbstractOrderedLayout testContainer;
private Date startTime;
private final Label result;
private static final String DESCRIPTION = "Simple test that renders n labels into ordered layout.";
private static final int INITIAL_COMPONENTS = 1000;
public PerformanceTestLabelsAndOrderedLayouts() {
main = new VerticalLayout();
setCompositionRoot(main);
addInfo();
result = new Label();
main.addComponent(result);
main.addComponent(new Button("click when rendered",
new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
endTest();
}
}));
main.addComponent(new Button(
"Click for layout repaint (cached components)",
new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
testContainer.markAsDirty();
}
}));
testContainer = new VerticalLayout();
for (int i = 0; i < INITIAL_COMPONENTS; i++) {
Label l = new Label("foo" + i);
testContainer.addComponent(l);
}
main.addComponent(testContainer);
startTest();
}
public void startTest() {
startTime = new Date();
}
public void endTest() {
final long millis = (new Date()).getTime() - startTime.getTime();
final Float f = new Float(millis / 1000.0);
result.setValue("Test completed in " + f + " seconds");
}
private void addInfo() {
main.addComponent(new Label(DESCRIPTION, ContentMode.HTML));
}
}