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Algorithm for CM Subscription Delete ( TBD ) 18 Jun 2024 

1. Capture Incoming subscriptionId from the client.
2. Query the existing subscriptions we are tracking using the subscriptionId we got from the Cm Subscription Delete request.
3. Populate the cmSubscriptionCache with the relevant details ( this will be later used to send the response and manage the subscription ) using the above query we did.
4. Now check if the details we have are ALL the last subscribers or not.
   1. if all are NOT the last subscribers then we can right away delete it from the DB and send back the response to the client without sending any request to the DMI.
   2. if we have mixed records then we need to make a call to the DMI for the "last lights out" to get Acceptance from DMI.DMI 
5. if DMI accepts it , then whatever we have in the cache can be used to DELETE the rows from the DB ( similar to what we did for create )
6. Once the rows are deleted then we can send back the response to the client and clear up the cache ( for ACCEPTED/REJECTED )

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1. DME to NCMP Cm Subscription Delete Request
   
   

   	Name	Parent	Type	Example	Mandatory ?	Notes
   1	id	header	String		Y
   2	version	header	String	1.0	Y
   3	source	header	String	DME	Y
   4	type	header	String	subscriptionDeleteRequest	Y
   5	dataschema	header	URI	org.onap.ncmp.cm.subscription:1.0.0	Y
   6	data		Object		Y
   7	subscriptionId	data	String	cm-subscription-001	Y
   8	predicates	data	Object		N

   
   Example

   Code Block
   title DME to NCMP Cm Subscription Delete Request linenumbers true collapse true
   id : random-UUID version : "1.0" source : "DME" type : "subscriptionDeleteRequest", dataschema : org.onap.ncmp.cm.subscription:1.0.0 { "data": { "subscriptionId": "unique subscription id" // mandatory }

   
   
   

2. NCMP to DMI-Plugin Subscription Request

   	Name	Parent	Type	Example	Mandatory ?	Notes
   1	id	header	String		Y
   2	version	header	String	1.0	Y
   3	source	header	String	DME	Y
   4	type	header	String	subscriptionDeleteRequest	Y
   5	dataschema	header	URI	org.onap.ncmp.dmi.cm.subscription:1.0.0	Y
   6	correlationid	header	String	subscriptionId#dmiPluginName	Y	Concatenation of subscriptionId and dmi plugin name
   7	data		Object		Y
   8	cmHandles	data	Array		Y
   9	cmhandleId	cmHandles	String		Y
   10	privateProperties	cmHandles	Map		N
   11	predicates	data	Array		N
   12	targetFilter	predicates	Array of String		Y	list of cm handle ids
   13	scopeFilter	predicates	Object		N
   14	datastore	scopeFilter	String		Y	ncmp-datastore:passthrough-operational OR ncmp-datastore:passthrough-running
   15	xpathFilter	scopeFilter	Array of String		Y

   
   Example

   Code Block
   title NCMP to DMI-Plugin Subscription Request linenumbers true collapse true
   id : random UUID version : 1.0 source : "NCMP" type : "subscriptionDeleteRequest" dataschema : org.onap.ncmp.dmi.cm.subscription:1.0.0 correlationId ( concatenation of subscriptionId and dmi-plugin-name with a separator) { "data": { "cmhandles" : [ // mandatory { "cmHandleId": "cmhandle1", "private-properties": {...} }, { "cmHandleId": "cmhandle2", "private-properties": {...} }, { "cmHandleId": "cmhandle3", "private-properties": {...} } ] "predicates": [ { “targetFilter” : [“cmHandle1”, “cmHandle2”, "cmhandle3"], // mandatory "scopeFilter" : { "datastore": “ncmp-datastore:passthrough-operational or ncmp-datastore:passthrough-running", // optional. default is passthrough-operational "xpath-filter": list of valid xpaths // mandatory } }, { “targetFilter” : [“cmHandle1”, “cmHandle2”, "cmhandle3"], "scopeFilter" : { "datastore": “ncmp-datastore:passthrough-operational or ncmp-datastore:passthrough-running", // optional. default is passthrough-operational "xpath-filter": list of valid xpaths * } } ] }

   
   
   

3. DMI-Plugin to NCMP Cm Subscription Delete Response
   
   

   	Name	Parent	Type	Example	Mandatory ?	Notes
   1	id	header	String		Y
   2	version	header	String	1.0	Y
   3	source	header	String	DME	Y
   4	type	header	String	subscriptionDeleteResponse	Y
   5	dataschema	header	URI	org.onap.ncmp.dmi.cm.subscription:1.0.0	Y
   6	correlationid	header	String	subscriptionId#dmiPluginName	Y	Concatenation of subscriptionId and dmi plugin name
   7	data		Object		Y
   8	statusCode	data	String		Y	1 - Accept the subscription request 104 - Reject the subscription request
   9	statusMessage	data	String		Y	ACCEPTED REJECTED

   
   Example

   Code Block
   title DMI-Plugin to NCMP Cm Subscription Delete Response linenumbers true collapse true
   id : random UUID version : "1.0" source : <dmi-plugin-name> type : "subcriptionDeleteResponse" dataschema : org.onap.ncmp.dmi.cm.subscription:1.0.0 correlationid : ( concatenation of subscriptionId and dmi-plugin-name with a separator) { "data" : { "statusCode": "1/104", // mandatory "statusMessage" : "ACCEPTED/REJECTED" // mandatory } }

   
   
   

4. NCMP to DME Cm Subscription Delete Response
   
   

   	Name	Parent	Type	Example	Mandatory ?	Notes
   1	id	header	String		Y
   2	version	header	String	1.0	Y
   3	source	header	String	DME	Y
   4	type	header	String	subscriptionDeleteResponse	Y
   5	dataschema	header	URI	org.onap.ncmp.cm.subscription:1.0.0	Y
   6	correlationid	header	String	subscriptionId	Y
   7	data		Object		Y
   8	subscriptionId	data	String		Y
   9	acceptedTargets	data	Array of String		N
   10	rejectedTargets	data	Array of String		N
   11	pendingTargets	data	Array of String		N

   
   Example

   Code Block
   title NCMP to DME Cm Subscription Delete Response linenumbers true collapse true
   id : random UUID version : "1.0" source : "NCMP" type : "subcriptionDeleteResponse", dataschema : org.onap.ncmp.cm.subscription:1.0.0, correlationid : <subscriptionId> { "data": { "subscriptionId": "sample-subscription-id", // mandatory "acceptedTargets" : ["ch-1", ...], // optional "rejectedTargets" : ["ch-1", ...], // optional "pendingTargets" : ["ch-1", ...], // optional } }

   
   

   
   
   

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