How to limit webservice calls suppose 50 at a time while invoking webservice client.

How to limit web service calls suppose 50 at a time while invoking webservice client?

IF you are talking about simultaneous server requests, in Tomcat this is a straightforward setting for the number of request threads and number of pending requests allowed.

IF you are talking about one webservice client making 50 requests, that is a client side programming problem.

Bill

I need the client side sample code where a singleton class (with 50 thread instances )is invoking the client stub method of a particular web service.

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Hi!
Take a look at java.util.concurrent.ThreadPoolExecutor.
1) If you need max 50 threads at the same time to invoke a web service, then set the number of threads in the executor to 50.
2) If you need to limit the total number of invocations of the web service to 50, then create a subclass of ThreadPoolExecutor in which you override the execute method. In your execute method, you check if the total number of submitted tasks is less than 50, before accepting a new task.
Best wishes!