[
https://issues.jboss.org/browse/RF-12096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Brian Leathem updated RF-12096:
-------------------------------
Fix Version/s: 4.3-Tracking
> Push: there is delay between repeated subscribtion
> --------------------------------------------------
>
> Key: RF-12096
> URL: https://issues.jboss.org/browse/RF-12096
> Project: RichFaces
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: component-push/poll
> Affects Versions: 4.2.0.Final
> Reporter: Lukáš Fryč
> Fix For: 4.3-Tracking
>
>
> When you have conditionally rendered {{a4j:push}} component and you disable
> it,
> then it stops to receive push events.
> Once you enable it, there is delay before it will start to receive events
> again.
> Sample code for reproduction:
> {code:xml}
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
> <html xmlns="http://www.w3.org/1999/xhtml";
> xmlns:ui="http://java.sun.com/jsf/facelets";
> xmlns:h="http://java.sun.com/jsf/html";
> xmlns:f="http://java.sun.com/jsf/core";
> xmlns:a4j="http://richfaces.org/a4j";>
> <f:view>
> <h:head>
> </h:head>
> <h:body>
> <h:form>
> <br /><br /><br /><br />
> <!-- PUSH 1 -->
> <a4j:commandButton value="Push 1!" action="#{richBean.push}" />
>
>
> <a4j:outputPanel id="pushPanel">
> <a4j:push id="push" rendered="#{not pushDisabled}"
> address="sampleAddress"
> ondataavailable="$('*[id$=outputDate]').text(event.rf.data)"
> onsubscribed="alert('subscribed')" />
> </a4j:outputPanel>
>
>
>
> <a4j:outputPanel id="pushDisablementPanel">
> <h:selectBooleanCheckbox value="#{pushDisabled}">
> <a4j:ajax render="pushPanel pushDisablementPanel" />
> </h:selectBooleanCheckbox>
> <h:outputText value="#{pushDisabled ? 'disabled' :
> 'enabled'}" />
> </a4j:outputPanel>
>
> <br />
>
> <a4j:outputPanel id="outputDate">
> #{richBean.date}
> </a4j:outputPanel>
>
> <br />
> </h:form>
> </h:body>
> </f:view>
> </html>
> {code}
> {code:java}
> package demo;
> import java.util.Date;
> import javax.faces.bean.ManagedBean;
> import org.richfaces.application.push.MessageException;
> import org.richfaces.application.push.TopicKey;
> import org.richfaces.application.push.TopicsContext;
> @ManagedBean
> public class RichBean {
> public Date getDate() {
> return new Date();
> }
> public void push() throws MessageException {
> TopicKey topicKey = new TopicKey("sampleAddress");
> TopicsContext topicsContext = TopicsContext.lookup();
> topicsContext.publish(topicKey, new Date().toString());
> System.out.println("push event");
> }
> }
> {code}
> Steps to reproduce:
> 1. open the sample page (the "subscribed" message appears)
> 2. click on Push! button (the date is changed)
> 3. check the checkbox
> 4. click on Push! button (the date is not changed anymore)
> 5. uncheck the checkbox (the "subscribed" message appears again)
> 6. click on Push!
> EXPECTED: the date should be changed
> ACTUAL: the date is not changed
> If you will wait for some seconds, the Push! button will cause change of the
> date,
> but in this delay, client can lose data updates (since "subscribed" event
> does not show that the client is starting to receive data).
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