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/*
* 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.push;
import java.util.Timer;
import java.util.TimerTask;
import com.vaadin.annotations.Push;
import com.vaadin.data.util.ObjectProperty;
import com.vaadin.server.VaadinRequest;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.tests.components.AbstractTestUI;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Label;
@Push
public class BasicPush extends AbstractTestUI {
public static final String CLIENT_COUNTER_ID = "clientCounter";
public static final String STOP_TIMER_ID = "stopTimer";
public static final String START_TIMER_ID = "startTimer";
public static final String SERVER_COUNTER_ID = "serverCounter";
public static final String INCREMENT_BUTTON_ID = "incrementCounter";
private ObjectProperty<Integer> counter = new ObjectProperty<Integer>(0);
private ObjectProperty<Integer> counter2 = new ObjectProperty<Integer>(0);
private final Timer timer = new Timer(true);
private TimerTask task;
@Override
protected void setup(VaadinRequest request) {
spacer();
/*
* Client initiated push.
*/
Label lbl = new Label(counter);
lbl.setCaption("Client counter (click 'increment' to update):");
lbl.setId(CLIENT_COUNTER_ID);
addComponent(lbl);
Button incrementButton = new Button("Increment",
new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
counter.setValue(counter.getValue() + 1);
}
});
incrementButton.setId(INCREMENT_BUTTON_ID);
addComponent(incrementButton);
spacer();
/*
* Server initiated push.
*/
lbl = new Label(counter2);
lbl.setCaption("Server counter (updates each 3s by server thread) :");
lbl.setId(SERVER_COUNTER_ID);
addComponent(lbl);
Button startTimer = new Button("Start timer",
new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
counter2.setValue(0);
if (task != null) {
task.cancel();
}
task = new TimerTask() {
@Override
public void run() {
access(new Runnable() {
@Override
public void run() {
counter2.setValue(counter2.getValue() + 1);
}
});
}
};
timer.scheduleAtFixedRate(task, 3000, 3000);
}
});
startTimer.setId(START_TIMER_ID);
addComponent(startTimer);
Button stopTimer = new Button("Stop timer", new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
if (task != null) {
task.cancel();
task = null;
}
}
});
stopTimer.setId(STOP_TIMER_ID);
addComponent(stopTimer);
}
@Override
protected String getTestDescription() {
return "This test tests the very basic operations of push. "
+ "It tests that client initiated changes are "
+ "recieved back to the client as well as server "
+ "initiated changes are correctly updated to the client.";
}
@Override
protected Integer getTicketNumber() {
return 11494;
}
private void spacer() {
addComponent(new Label("<hr/>", ContentMode.HTML));
}
@Override
public void attach() {
super.attach();
}
@Override
public void detach() {
super.detach();
timer.cancel();
}
}
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