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@eputtone eputtone released this 25 Dec 06:28
· 2458 commits to master since this release
v1.2.0
bd3dd87

Highlights

  • nFlow explorer (user interface) beta-version added
  • workflow definitions are persisted, and persisted undeployed definitions are returned by REST API
  • services for querying executor group and workflow definition statistics

Details

  • nflow-engine:
    • workflow initial state must be of type "start"
    • workflow error state must be of final ("end" or "manual")
    • workflow instance cannot be externally updated (WorkflowInstanceService.updateWorkflowInstance), when being processed by nFlow executor
    • persists workflow definitions to database during startup (nflow_workflow_definition-table required)
    • internal components annotated by @nflow (required e.g. for injecting application datasource to nflow)
    • does not start anymore, if transactions are not enabled
    • defining contradictory failure transitions using permit() no longer allowed
    • bug fixes:
      • theoretical problem in optimistic locking of instance polling
      • binary backoff integer overflow when calculating next activation after 15 retries
  • nflow-rest-api:
    • return http code 404, when the requested object is not found
    • /v1/workflow-definition (GET)
      • returns persisted workflow definition, if the definition exists (or has existed) within the executor group, but is not deployed to the queried nFlow installation
    • /v1/workflow-definition/{type}/statistics (GET)
      • new resource for retrieving counts of workflow instances in different states
    • /v1/workflow-instance, /v1/workflow-instance/{type} (GET)
      • returns new workflow instance fields: started, created, modified, retries and actions[n].executor_id
      • added query parameter limit search result size (maxResults)
    • /v1/workflow-instance (PUT)
      • returns http code 409, if the instance is currently being processed by nFlow executor
      • bug fix: updating only next activation without state change works now
    • /v1/statistics (GET)
      • new resource for retrieving workflow instance queue size and lag from target activation times
  • nflow-jetty:
    • added nflow-explorer user interface beta-version
      • search, manage and visualize workflow instances
      • visualize workflow definitions
      • visualize and monitor instance statistics per definition
    • Swagger runtime dependency removed: service descriptions are generated in compile time to nflow-rest-api -module and served by nflow-jetty
    • tuned web contexts
      • /api/v1/: nFlow REST API version 1
      • /doc/: nFlow REST API Swagger descriptions
      • /explorer/: nflow-explorer user interface
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