When the Data Index is present, the SonataFlow operator must produce deployed/undeployed events for Data Index consumption. This information will be used to mark a ProcessDefinition as available/unavailable.

After team discussion, we agreed to introduce a "status" field in the workflow definition metadata stored in the Data Index. When a workflow is deployed/undeployed, the operator will send a ProcessDefinition event to the Data Index, sending the following metadata as part of it.

{
  "metadata" :
{ "status" : "available" }
}
 
{   "metadata" :
{ "status" : "unavailable" }
}
 

Interested parties can query that information using a Data Index query like this, e.g.:

{
  ProcessDefinitions (
    where:{metadata: {status: {equal: "available"}}}
) {
    id
    metadata
  } 
  
}

{

  ProcessDefinitions (
    where:{metadata: {status: {equal: "unavailable"}}}
) {
    id
    metadata
  } 
  
}