Page History

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• • • • The Service List panel supports pagination, which will be controlled by the Navigation buttons.
      • Queries a service list from the SO Request DB through the Monitoring REST APIs.
      • Action buttons are enabled/disabled based on data population and/or context.

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• • Search Operations:
    • Capabilities
      • Retrieve a service list thru the Service List REST API, getServiceList(...)
      • Provides filtering, Service ID, Operation Type, Status User Id, Date/Time range (actual criteria could be configured).
      • Click the Search button, and the filtered service list will be displayed.
    • Design
      • After the user fills up the desired search crtieria fields, and click the Search button.
      • Use a REST API, getServiceList with search criteria parameters
      • Provide pagnation for the list, enable/disable the navigation buttons.
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• Service List Get Service Instance Monitoring
  • Select a row and click the Monitor button. Then, it will go to the Service instance (= process instance in Camunda) monitoring widge for the selected Service instance.

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• • Service Statistic Widget
    • When, the static button is clicked, the Service Statistic dashboard will be shown. 
    • Collect and display Service Instance statistic per filtered service list, for the filtered service range.

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• • Service Instance Rendering and Detail View
    • Get a process definition XML through the Service Id and Process instance association.
    • use Camunda REST API, get/process-defintion/{id}xml
    • Get the state of a process instance from the activity-instances
    • Use Camunda REST API, get/process-instance/{id}/activity-instances
    • Render the BPMN XML with bpmn.io and places markers on top of it, and provide Service instance detail views.

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• Rendering code example
  • Import BPMN XML string through Camunda REST APIs and render the BPMN workflow.
  • Attache overlay events on the Call Activities for drilling down and display details.

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• • Task Drill-Down/Drill-Up and Detail View
    • Support Task (CAll Activity) drill-down/drill-up capabilties.
    • When a call activity task is selected, the Drill-Down button will be enabled.
    • Provide detail views for the selected Task.
    • When a task is selected including the call activity, the Detail view panel will display details for the selected task.

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• • Sub-Service Instance Rendering and Detail View
    • Get a sub process defintion XML through the Service Id and Process Instance association.
    • Use Camunda REST API, get/process-definition/{sub-id}/xml
    • Get the state of a sub-process instance from the activity-instances.
    • Use Camunda REST API, get/process-instance/{sub-id}/activity-instances
    • Render the BPMN XML with bpmn.io and places markers on top of it, and provides service instance detail views.
    • This widget uses the same code of the Service Instance Rendering and Detail View with the sub-process instance id. 
    • The Drill-Up button will be enabled.

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• REST APIs for providing data to UIs
  • Provides REST services, by utilzing 1) Camunda REST APIs, such as BPMN XML string, process activity data, process variable, statistic, and 2) SO Request DB APIs for a service list.
  • Consolidate data responses from multpile Camunda calls and feed them to UIs.
  • Use of HistoryService APIs, example, processEngine.getHistoryService().createHistoricProcessVariableQuery().xyz
  • Set a History level to ACTIVITY as a minimum; AUDIT (default) level for process variable tracing
  • Provides workflow tracing (between parent-child workflows, interaction with other services; service task in and out); example,
    • processEngine.getRuntimeService().createExecutionQuery().processVariableValueEquals("serviceInstanceId", serviceInstanceId).singleResult();
  • Custom Query
    • Custom Query against History ACT_HI_DETAIL database table, as needed
  • Create a REST API, getServiceList with search criteria
    • Enhance MsoRequestsDbAdapter and MsoRequestsDbAdapterImpl to implement getInfraRequest(...) with additional parameters
    • invoke getInfraRequest(...) to collect service list data based on search criteria.
• Custom History Event Producer
  • Populate additional data in history with extensibility

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