BlazeDS StreamingAMF: How to detect when flex client closes the connection?
- by Adrian Pirvulescu
Hello,
I have a Flex application that connects to a BlazeDS server using the StreamingAMF channel.
On the server-side the logic is handled by a custom adapter that extends ActionScriptAdapter and implements FlexSessionListener and FlexClientListener interfaces.
I am asking how can I detect which "flex-client" has closed a connection when for example the user is closing the browser? (so I can clean some infos inside the database)
I tried using the following:
1. To manually manage the command messages:
@Override
public Object manage(final CommandMessage commandMessage) {
switch (commandMessage.getOperation()) {
case CommandMessage.SUBSCRIBE_OPERATION:
System.out.println("SUBSCRIBE_OPERATION = " + commandMessage.getHeaders());
break;
case CommandMessage.UNSUBSCRIBE_OPERATION:
System.out.println("UNSUBSCRIBE_OPERATION = " + commandMessage.getHeaders());
break;
}
return super.manage(commandMessage);
}
But the clientID's are always different from the ones that came.
2. Listening for sessionDestroyed and clientDestroyed events
@Override
public void clientCreated(final FlexClient client) {
client.addClientDestroyedListener(this);
System.out.println("clientCreated = " + client.getId());
}
@Override
public void clientDestroyed(final FlexClient client) {
System.out.println("clientDestroyed = " + client.getId());
}
@Override
public void sessionCreated(final FlexSession session) {
System.out.println("sessionCreated = " + session.getId());
session.addSessionDestroyedListener(this);
}
@Override
public void sessionDestroyed(final FlexSession session) {
System.out.println("sessionDestroyed = " + session.getId());
}
But those sessionDestroyed and clientDestroyed methods are never called. :(
