How to keep event handlers alive in Actionscript 3 - actionscript-3

Question

I have a Flex app that connects to a JBoss/MS-SQL back-end. Some of our customers have a proxy server in front of their JBoss with a timeout of 90 seconds. In our application there are searches that can take up to 2-3 minutes for complex criteria. Since the proxy isn't smart enough to recognize AMF's keep alive pings for what they are the proxy sends a 503 to the client, which in Flex land becomes a "Channel Call Failed" event. In searching SO and other places, this seems to be a common problem. We can't do anything about the proxy or lengthen the timeout, the application needs to handle it.
Of course the back-end continues to process and eventually ships the results to the client. But the user gets an ugly error message and assumes the app is broke.
The solution I have settled on is to consume the CCF error and have the client continue to wait. I have managed the first part, but I can't figure out how to keep the client's handlers active to receive the data (and/or consume another timeout if necessary).
Current error handler:
private function handleSearchError(event : FaultEvent) : void {
if (event.fault.faultCode == "Channel.Call.Failed") {
event.stopImmediatePropagation(); // doesn't seem to help
return;
}
if (searchProgress != null) {
PopUpManager.removePopUp(searchProgress);
searchProgress = null;
}
etc...
}
This is the setup:
<mx:Button id="btnSearch" label="
{resourceManager.getString('recon_perspective',
'ReconPerspective.ReconView.search')}" icon="{iconSearch}"
click="handleSearch()" includeIn="search, default"/>
And:
<mx:method name="search" result="event.token.resultHandler(event);"
fault="handleSearchError(event);"/>
Kicking off the call:
var token : AsyncToken = null;
token = sMSrv.search(searchType.toString(), getSearchMode(), criteria,
smartMatchParent.isArchiveMode);
searchProgress = LoadProgress(PopUpManager.createPopUp
(FlexGlobals.topLevelApplication as DisplayObject, LoadProgress, true));
searchProgress.title = resourceManager.getString('matching', 'smartmatch.loading.trans');
searchProgress.token = token;
searchProgress.showCancelButton = true;
PopUpManager.centerPopUp(searchProgress);
token.resultHandler = handleSearchResults;
token.cancelSearch = false;
So my question is how do I keep handleSearch and handleSearchError alive to consume the events from the server?
I verified that the data comes back from the server using WebDeveloper in the browser to watch the network traffic and if you cause the app to refresh that screen, the data gets displayed.

Answer 1

I'm very in experienced but would this help?
private function handleSearchError(event : FaultEvent) : void {
if (event.fault.faultCode == "Channel.Call.Failed") {
event.stopImmediatePropagation(); // doesn't seem to help
if(event.isImmediatePropagationStopped(true)) {
//After stopped do something here?
}
return;
}
if (searchProgress != null) {
PopUpManager.removePopUp(searchProgress);
searchProgress = null;
}
etc...
}