The constrain of the creating of MemberOfCollection is incorrect.
Right now, I only check the member is the subclass of CIM_ManagedElement, 
and the collection is the subclass of CIM_Collection.
But CIM_Collection is the subclass of CIM_ManagedElement, 
so you can create a collection with a member of collection.
In other words, the outletgroup is under outletgroup.
Maybe I will find more problems when I am implement IPMI interface.

#The discovery function of the relation between outlets and sensors is based on 
#the sensor name. It should be based on the id of the sensors.
But the topology file has some problems

#Should I change the way to get the number of outlets.

Access Control can't work now.

What should I do for the powerstrip reset?

Can I use delete /system1/outletgroup1=>MemberOfCollection=>/system1/outlet*?
Non-instance path as third part of association

#Can I create a outletgroup with instance_id?

Input value check
