Distributed Cache Client Node Hierarchy Discovery

Microsoft.Windows.BranchCache.DistributedCacheClientNodeHierarchy.Discovery (Discovery)

Discovers the Distributed Cache Client Group to which this computer belongs based on its Active Directory (AD) Site attribute.

Knowledge Base article:

Element properties:

Object Discovery Details:

Member Modules:

Source Code:

<Discovery ID="Microsoft.Windows.BranchCache.DistributedCacheClientNodeHierarchy.Discovery" Enabled="true" Target="Microsoft.Windows.BranchCache.DistributedCacheClientNode" ConfirmDelivery="false" Remotable="true" Priority="Normal">

  <Category>Discovery</Category>

  <DiscoveryTypes>

    <DiscoveryClass TypeID="Microsoft.Windows.BranchCache.DistributedCacheClientNode">

      <Property TypeID="Microsoft.Windows.BranchCache.ClientSideServiceBase" PropertyID="NodeName"/>

    </DiscoveryClass>

    <DiscoveryClass TypeID="Microsoft.Windows.BranchCache.DistributedCacheGroup">

      <Property PropertyID="ADSite"/>

    </DiscoveryClass>

    <DiscoveryClass TypeID="Microsoft.Windows.BranchCache.BranchOfficeGroup">

      <Property PropertyID="SystemName"/>

    </DiscoveryClass>

    <DiscoveryRelationship TypeID="Microsoft.Windows.BranchCache.DistributedCacheGroupContainsDistributedCacheClientNode"/>

    <DiscoveryRelationship TypeID="Microsoft.Windows.BranchCache.BranchOfficeGroupContainsDistributedCacheGroup"/>

  </DiscoveryTypes>

  <DataSource ID="DS" TypeID="Windows!Microsoft.Windows.TimedScript.DiscoveryProvider">

    <IntervalSeconds>14400</IntervalSeconds>

    <SyncTime/>

    <ScriptName>BranchCache.DistributedCacheClientNodeHierarchy.Discovery.vbs</ScriptName>

    <Arguments>$MPElement$ $Target/Id$ $Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/PrincipalName$ $Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/ActiveDirectorySite$</Arguments>

    <ScriptBody><Script>Option Explicit

SetLocale("en-us")



Dim oArgs

Set oArgs = WScript.Arguments

if oArgs.Count &lt; 4 Then

    Wscript.Quit -1

End If



Dim SourceID, ManagedEntityId, TargetComputer, ActiveDirectorySite



SourceId = oArgs(0)

ManagedEntityId = oArgs(1)

TargetComputer = oArgs(2)

ActiveDirectorySite = oArgs(3)



''

'' Declare some working variables and then create an empty discovery payload.

''

Dim oAPI, oDiscoveryData, cInst, mInst, bInst, relInst, relInst2



Set oAPI = CreateObject("MOM.ScriptAPI")

set oDiscoveryData = oAPI.CreateDiscoveryData(0, SourceId, ManagedEntityId)



''

'' Now, let's discover the consensus node and set its properties.  When done we add it to the discovery packet

''

set cInst = oDiscoveryData.CreateClassInstance("$MPElement[Name='Microsoft.Windows.BranchCache.DistributedCacheClientNode']$")



call cInst.AddProperty("$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$", TargetComputer)

call cInst.AddProperty("$MPElement[Name='Microsoft.Windows.BranchCache.ClientSideServiceBase']/NodeName$", TargetComputer)

call cInst.AddProperty("$MPElement[Name='System!System.Entity']/DisplayName$", TargetComputer)

call oDiscoveryData.AddInstance(cInst)



''

'' Since we are using "contains" - we have to now discover the class instance above us.  If it is

'' already discovered, Ops Manager will recognize this as a reference count increase and not a

'' separate discovery because the key property is the same.

''

set mInst = oDiscoveryData.CreateClassInstance("$MPElement[Name='Microsoft.Windows.BranchCache.DistributedCacheGroup']$")



call mInst.AddProperty("$MPElement[Name='Microsoft.Windows.BranchCache.DistributedCacheGroup']/ADSite$", ActiveDirectorySite)

call mInst.AddProperty("$MPElement[Name='System!System.Entity']/DisplayName$", "DistributedCache: " + ActiveDirectorySite)

call oDiscoveryData.AddInstance(mInst)



''

'' Now we have to also create an instance of the relationship to link this DistributedCacheClientNode to its parent

''

set relInst = oDiscoveryData.CreateRelationshipInstance("$MPElement[Name='Microsoft.Windows.BranchCache.DistributedCacheGroupContainsDistributedCacheClientNode']$")



relInst.Source = mInst

relInst.Target = cInst

call oDiscoveryData.AddInstance(relInst)



set bInst = oDiscoveryData.CreateClassInstance("$MPElement[Name='Microsoft.Windows.BranchCache.BranchOfficeGroup']$")

call bInst.AddProperty("$MPElement[Name='System!System.Entity']/DisplayName$", "Branch Offices")

call bInst.AddProperty("$MPElement[Name='Microsoft.Windows.BranchCache.BranchOfficeGroup']/SystemName$", "Branch Offices")

call oDiscoveryData.AddInstance(bInst)



''

'' Now we have to also create an instance of the relationship to link this DistributedCacheGroup to its parent

''

set relInst2 = oDiscoveryData.CreateRelationshipInstance("$MPElement[Name='Microsoft.Windows.BranchCache.BranchOfficeGroupContainsDistributedCacheGroup']$")



relInst2.Source = bInst

relInst2.Target = mInst

call oDiscoveryData.AddInstance(relInst2)



''

'' To force the RMS to re-assign the local agent as the managing agent for the discovered HostedCacheClientNode (cInst)

'' we have to get a reference to the local health service class and then create a SPECIAL SECRET relationship :)



Dim oHealthServiceInstance, oHsCnRel, oHsCnRel2



Set oHealthServiceInstance = oDiscoveryData.CreateClassInstance( "$MPElement[Name='SC!Microsoft.SystemCenter.HealthService']$" )

call oHealthServiceInstance.AddProperty ("$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$", TargetComputer )



call oDiscoveryData.AddInstance(oHealthServiceInstance)



set oHsCnRel = oDiscoveryData.CreateRelationshipInstance("$MPElement[Name='SC!Microsoft.SystemCenter.HealthServiceShouldManageEntity']$")

oHsCnRel.Source = oHealthServiceInstance

oHsCnRel.Target = cInst



call oDiscoveryData.AddInstance(oHsCnRel)



set oHsCnRel2 = oDiscoveryData.CreateRelationshipInstance("$MPElement[Name='SC!Microsoft.SystemCenter.HealthServiceShouldManageEntity']$")

oHsCnRel2.Source = oHealthServiceInstance

oHsCnRel2.Target = mInst



call oDiscoveryData.AddInstance(oHsCnRel2)



''

'' And now we just return the discovery data

''

Call oAPI.Return(oDiscoveryData)</Script></ScriptBody>

    <TimeoutSeconds>300</TimeoutSeconds>

  </DataSource>

</Discovery>