How to check if entity is in "Busy" state

Hi,

I am trying to add a new vm to a vApp, using recomposevApp. At the same time several other threads also try to recompose and add a vm to the same vApp. And then I delete the vApp from which the vm was added. This is causing several exceptions.

• No access to entity
  
• Entity is Busy completing an operation.
  
• The operation is not allowed, please contact ur vcloud administrator.
  

I want to know, how I can check if the vApp to which a vm is to be added, is in busy state or not?

I want to check if the vapp is in stable condition before adding a vm to it.

Any other ideas are welcome. Please help asap.

Thanks in advance.

Mansie