The following steps describe how to determine how many subscribers to WS-Eventing exist to determine if additional subscribers can be added.
1. Retrieve the instances of CIM_FilterCollection.
2. To find the required subscription filter, look for an instance of CIM_FilterCollection where the “InstanceID” key equals the desired filter, for example “Intel(r) AMT:All” (see WS-Eventing Event Filters).
3. For each instance of CIM_FilterCollection, find if it has a CIM_FilterCollectionSubscription association class. The number of CIM_FilterCollectionSubscription objects you find is the number of subscribers that exist.
Click here for a snippet demonstrating this step
You can execute this snippet by inserting it into the execution template found here.
$numberOfSubscribers = 0
$instanceID ="Intel(r) AMT:All" # The instance ID of of the desired filter.
$filterCollectionRef =$wsmanConnectionObject.NewReference("SELECT * FROM CIM_FilterCollection WHERE InstanceID='" +$instanceID +"'")
Classes Used in This Flow
If there is a sample demonstrating this flow, it is included in the SDK installation file. See SDK Installation Layout for details.
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