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| # | Interface | Requirement | Additional Information | Sign-Off |
|---|---|---|---|---|
| 1 | CPS-E-08.e | NCMP is to merge CM Notification Subscriptions create request and forward those to DMI plugin. (Interface to be added). |
| kieran mccarthy |
| 2 | CPS-E-08.e | Last lights out: upon subscription Delete request only when there is no more subscription for a cm-handle & xpath & datastore combination a subscription-delete request will be sent to the relevant DMI(s). |
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| 3 | CPS-E-08.e | A single client subscription request should result into a maximum of one request per DMI. Of course there can be several messages if more than 1 DMI is involved. |
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| 4 | CPS-E-08.e | Amalgamate response should include rejected/accepted/pending DMI responses received within 30 seconds. A client shall be notified of available DMI subscription information after 30 seconds. Subsequent DMI subscription updates shall be notified to clients as they become available. |
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| 5 | CPS-NCMP-I-01 | CM Handle deletion should NOT update subscription details. | do Do NOT delete dmi-subscription entry until owning subscription is deleted, see issue #4 below |
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| 6 | CPS-E-08.e |
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| 7 | Order of the create/delete subscription needs to be discussed . TBD. |
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We get a new subscription create request.
Code Block { "subscriptionId" : "B-52", "predicates" : [ { "targets": [ch-2], "datastore" : "ncmp-datastore:passthrough-operational", "datastore-xpath-filter" : ["p2/c2" , "p3/c3"] } ] }We now look at the "ActiveSubscriptions" if we already have an active subscription either for a combination of "cmhandle and xpath filter and the datastore".
Current view of ActiveSubscriptionsSubscriptionId cmHandle filter datastore A-10 ch-1 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-1 p2/c2 ncmp-datastore:passthrough-operational A-10 ch-2 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-2 p2/c2 ncmp-datastore:passthrough-operational
Check if we have ch-2 , p2/c2 and ncmp-datastore:passthrough-operational then directly add to the ActiveSubscription.
Similarly check for ch-3 , p3/c3 and ncmp-datastore:passthrough-operational ( which in this case will not be directly to the active subscription)Now the state of ActiveSubscription is :
SubscriptionId cmHandle filter datastore A-10 ch-1 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-1 p2/c2 ncmp-datastore:passthrough-operational A-10 ch-2 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-2 p2/c2 ncmp-datastore:passthrough-operational B-52 ch-2 p2/c2 ncmp-datastore:passthrough-operational and state of the in-memory datastructure is as follows.
SubscriptionId dmi-plugin affectedCmHandles status B-52 dmi-1 ["ch-2"] PENDING - Now we send the request to DMI plugin (dmi-1) with just the private properties of the ch-2 with the delta xpath.
- DMI Plugin could either apply the whole subscription request or reject the whole subscription. i.e respond with accepted/rejected
Based on the response from DMI plugin the in-memory structure is updated and response is sent back to the clients.
if DMI says it is accepted then :SubscriptionId dmi-plugin affectedCmHandles status B-52 dmi-1 ["ch-2"] ACCEPTED
if DMI says it is rejected then :SubscriptionId dmi-plugin affectedCmHandles status B-52 dmi-1 ["ch-2"] REJECTED
if we get no response within the configured time then :SubscriptionId dmi-plugin affectedCmHandles status B-52 dmi-1 ["ch-2"] PENDING
But we still send some response within the pre-configured time.if the above request was accepted then we should add it to the list of "ActiveSubscriptions" as well.
SubscriptionId cmHandle filter datastore A-10 ch-1 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-1 p2/c2 ncmp-datastore:passthrough-operational A-10 ch-2 p1/c1 ncmp-datastore:passthrough-operational A-10 ch-2 p2/c2 ncmp-datastore:passthrough-operational B-52 ch-2 p2/c2 ncmp-datastore:passthrough-operational B-52 ch-2 p3/c3 ncmp-datastore:passthrough-operational - If the status was accepted/rejected then after sending the response to the client we can clear the in-memory structure for subscriptionId B-52.
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