Re: [xmlblaster] Pinging the server using Applets

[Marcel Ruff <mr at marcelruff.info>]

Eduardo Catarino wrote:

> Hi,
>
> When using an Applet how can I check if an established connection went 
> down? (for example if the server is disconnected or if for some reason 
> the communication channel is interrupted) I’m trying to write a ping 
> function to detect this case every 5sec and I used the isConnected() 
> method, however in the situation that the server was up and suddenly 
> was force to go down this function doesn’t detect this situation. Does 
> anyone know how to overcome this problem?
>
> Best regards,
>
> Eduardo Catarino
I have added such a ping method, please checkout from svn,
you'll find an example in

xmlBlaster/demo/http/applet/HelloWorld3.java

rgds

Marcel

PS:

/**
* Returns "/qos/state/ at info"="OK" if communication from servlet to 
xmlBlaster is OK
* <br />
* Returns "/qos/state/ at info"="POLLING" if communication from servlet to 
xmlBlaster is down but polling
* <br />
* Returns "/qos/state/ at info"="DEAD" if communication from servlet to 
xmlBlaster is permanently lost
*  at return never null, contains QoS in XJPath format
*/
public Hashtable ping(java.lang.String qos) throws Exception;