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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 handling in code

draw.io

Diagram attachment access error: cannot display diagram

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

TODO: Sequence diagram


Important links to related Spikes and Implementation proposals

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