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package com.vaadin.tests.push;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
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;
public class BasicPush extends AbstractTestUI {
private ObjectProperty<Integer> counter = new ObjectProperty<Integer>(0);
private ObjectProperty<Integer> counter2 = new ObjectProperty<Integer>(0);
private final Timer timer = new Timer(true);
private final TimerTask task = new TimerTask() {
@Override
public void run() {
runSafely(new Runnable() {
@Override
public void run() {
counter2.setValue(counter2.getValue() + 1);
}
});
}
};
@Override
protected void setup(VaadinRequest request) {
spacer();
/*
* Client initiated push.
*/
Label lbl = new Label(counter);
lbl.setCaption("Client counter (click 'increment' to update):");
addComponent(lbl);
addComponent(new Button("Increment", new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
counter.setValue(counter.getValue() + 1);
}
}));
spacer();
/*
* Server initiated push.
*/
lbl = new Label(counter2);
lbl.setCaption("Server counter (updates each 3s by server thread) :");
addComponent(lbl);
addComponent(new Button("Reset", new Button.ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
counter2.setValue(0);
}
}));
}
@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();
timer.scheduleAtFixedRate(task, new Date(), 3000);
}
@Override
public void detach() {
super.detach();
timer.cancel();
}
}
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