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Overview

By each LCM state change the related notification is sent to user to notify about the state change.

Diagram of the possible transactions between CM-Handle states

CPS-799 Spike: Define states and state handling for CM handle

Notification details

Notification handling in code

draw.io

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The Event structure of the notification

CPS-1104 Agree LCM Event schemas

Create Event 
{
  "eventId"               : "00001",    
  "eventCorrelationId     : "cmhandle-001"      
  "eventTime"             : "2021-11-16T16:42:25-04:00",
  "eventSource"           : "org.onap.ncmp",                                 
  "eventType"             : "org.onap.ncmp.cmhandle-lcm-event.create",   
  ”eventSchema”           : “org.onap.ncmp:cmhandle-lcm-event",  
  "eventSchemaVersion"    : "1.0" 

  "event": {
         “cmHandleId” : “cmhandle-001”,
         "newValues" : {                      # include ALL cmhandle metadata attributes in newValues section
             “cmHandleState”  : “ADVISED”, 
             “dataSyncEnabled” : “TRUE”,
             “cmhandleProperties” : [
                          “someProperty-1” : “Initial property value 1”,
                          “someProperty-2” : “Initial property value 2”
                   ]
         }   
    }
}
Update Event 
{
  "eventId"                : "00001",    
  "eventCorrelationId      : "cmhandle-001"      
  "eventTime"              : "2021-11-16T16:42:25-04:00",
  "eventSource"            : "org.onap.ncmp",                                 
  "eventType"              : "org.onap.ncmp.cmhandle-lcm-event.update",   
  ”eventSchema”            : “org.onap.ncmp:cmhandle-lcm-event", 
  "eventSchemaVersion"    : "1.0"  
  
  "event": {
         “cmHandleId” : “cmhandle-001”
         "oldValues" : {
    			 “cmHandleState”  : “ADVISED”,
                 “dataSyncEnabled” : “FALSE”, 
                 “cmhandleProperties” : [
                          “someProperty-0” : “ This property will be updated”,
                          “someProperty-1” : “ This property will be deleted”,
              }
          "newValues" : {
	    	 “cmHandleState”  : “READY”,
             “dataSyncEnabled” : “TRUE”,  
             “cmhandleProperties” : [
                          “someProperty-0” : “ This property has been updated”,
                          “someProperty-2” : “ This property is newly added to the cmhandle”
                   ]
           }   
       ]
    }
}
Delete Event 
{
  "eventId"                : "00001",    
  "eventCorrelationId      : "cmhandle-001",       
  "eventTime"              : "2021-11-16T16:42:25-04:00",
  "eventSource"            : "org.onap.ncmp",                                 
  "eventType"              : "org.onap.ncmp.cmhandle-lcm-event.delete",   
  ”eventSchema”            : “org.onap.ncmp:cmhandle-lcm-event",  
  "eventSchemaVersion"    : "1.0"   
     
  "event": {
        “cmHandleId” : “cmhandle-001”    
  }
}


Typical use cases which leads to state changes and trigger notification events


State changes after Handle is registered

State change use case diagram

State changes happens during watchdog execution

Gliffy Macro Error

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  • Name: State changes in watchdog

Materials

Important links to related Spikes and Implementation proposals

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