/**
* This method first sends a message to the widget specified by handle to get the list of its
* callbacks, then the server subscribes to each of them. The subscription is added to calls
*
* @param handle The widget to subscribe to
* @param calls The subscription results are added to calls
*/
private void addWidgetCallbacksSubscription(WidgetHandle handle, Callbacks calls) {
// Get all callbacks of each widget
DataObject widgetCalls =
getWidgetCallbacks(handle.getHostName(), handle.getPort(), handle.getId());
String error = new Error(widgetCalls).getError();
if (error != null) {
if (error.equals(Error.NO_ERROR)) {
Callbacks cbacks = new Callbacks(widgetCalls);
// Subscribe to each callback received by the widget
for (int j = 0; j < cbacks.numCallbacks(); j++) {
Callback call = cbacks.getCallbackAt(j);
ClientSideSubscriber css =
new ClientSideSubscriber(
this.getId(),
this.getHostName(),
this.getPort(),
call.getName(),
null,
handle.getAttributes());
println("Server in <addWidgetCallbacksSubscription> subscribe to:" + css);
Error done =
subscribeTo(
(Handler) this, handle.getId(), handle.getHostName(), handle.getPort(), css);
// The unique id identifying the subscription is in css
// call.setName(handle.getId()+"_"+call.getName()); // before
call.setName(css.getSubscriptionId());
calls.addCallback(call);
}
}
}
}
