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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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How to implement long polling/server push with JBoss
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created by <a href="http://community.jboss.org/people/laures">laures</a> in <i>JBoss Web Services</i> - <a href="http://community.jboss.org/message/567706#567706">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>i want to use http server push / long polling / whatever its called right now, in my next webservice.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>one way (a very bad, non scaling way) to do that is like this:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><code>@WebService(serviceName="mywebservice")</code></p><p><code></code></p><pre class="prettyprint"><code>@Stateless<br/>public class MyWebService {<br/>    @WebMethod<br/>    public String longPoll() {<br/>         short ct = 0;<br/>         while(someCondition == false && ct < 60) {<br/>             sleep(1000);  // 1 sec<br/>             ct++;<br/>         }<br/>         if (someCondition)<br/>             return "got value";<br/>         else<br/>             return "";<br/>    }<br/>}<br/><br/><span style="font-family: arial,helvetica,sans-serif;">As i said, this dowsn't scale, but should demonstrate what i want to do. I've been looking for an alternative way and found two interesting things:</span><br/><br/></code></pre><ul><li><span>i can create an asyncronous response with servlets: </span><a class="jive-link-external-small" href="http://docs.jboss.org/resteasy/docs/1.0.2.GA/userguide/html/Asynchronous_HTTP_Request_Processing.html" target="_blank">http://docs.jboss.org/resteasy/docs/1.0.2.GA/userguide/html/Asynchronous_HTTP_Request_Processing.html</a><span> but i would like to use stateless session beans for my webservice (its so nice and simple....)</span></li><li>Somebody pointed me at the APR Connector for jboss and mentioned it could do what i want. unfortuantely i couldn't find any examples for apr, so i don't know if thats correct (and if it is, how it would be done)</li></ul><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I hope you can point me in the right direction.</p></div>
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