serverless-workflow-examples/serverless-workflow-qas-service-showcase/query-answer-service/src/main/resources/qaservice.sw.json

{
  "id": "qaservice",
  "version": "1.0",
  "name": "Query Answer Service",
  "description": "A simple SW example that coordinates the formulation of a query and it's resolution by using an external service",
  "errors": [
    {
      "name": "execution error",
      "code": "javax.ws.rs.ProcessingException"
    }
  ],
  "start": "Initialization",
  "events": [
    {
      "name": "queryResultEvent",
      "source": "",
      "type": "query_response_events"
    }
  ],
  "functions": [
    {
      "name": "sendQuery",
      "type": "rest",
      "operation": "specs/query-service.yaml#sendQuery"
    },
    {
      "name": "registerQuery",
      "type": "custom",
      "operation": "service:java:org.acme.QueryAnswerServiceHelper::registerQuery"
    },
    {
      "name": "registerAnswer",
      "type": "custom",
      "operation": "service:java:org.acme.QueryAnswerServiceHelper::registerAnswer"
    },
    {
      "name": "registerError",
      "type": "custom",
      "operation": "service:java:org.acme.QueryAnswerServiceHelper::registerError"
    }
  ],
  "states": [
    {
      "name": "Initialization",
      "type": "operation",
      "actions": [
        {
          "name": "registerQueryAction",
          "functionRef": {
            "refName": "registerQuery"
          }
        }
      ],
      "transition": "Send Query and Wait For Answer"
    },
    {
      "name": "Send Query and Wait For Answer",
      "type": "callback",
      "action": {
        "name": "sendQueryAction",
        "functionRef": {
          "refName": "sendQuery",
          "arguments": {
            "processInstanceId": "$WORKFLOW.instanceId",
            "query": ".query"
          }
        }
      },
      "eventRef": "queryResultEvent",
      "transition": "Register Answer",
      "onErrors": [
        {
          "errorRef": "execution error",
          "transition": "Process query service error"
        }
      ]
    },
    {
      "name": "Register Answer",
      "type": "operation",
      "actions": [
        {
          "name": "registerAnswerAction",
          "functionRef": {
            "refName": "registerAnswer"
          }
        }
      ],
      "end": true
    },
    {
      "name": "Process query service error",
      "type": "inject",
      "data": {
        "error": "The query service invocation failed, please try at another time"
      },
      "transition": "Register error"
    },
    {
      "name": "Register error",
      "type": "operation",
      "actions": [
        {
          "name": "registerErrorAction",
          "functionRef": {
            "refName": "registerError"
          }
        }
      ],
      "end": true
    }
  ]
}