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我正在模拟一个虚拟场景来玩 Perseo 和 Orion。我正在使用 4 个 docker 容器：Mongo、Orion、Perseo FE 和 Perseo Core。他们都运行健康。

我正在做的步骤是：

  1. 首先，我使用 POST to Orion ( localhost:1026/v2/entities) 创建实体。该实体如下所示：
{
  "id": "DummyEvent1",
  "type": "DummyEvent",
  "identification": {
    "value": "default",
    "type": "String"
  }
}
  1. 其次，我创建了一个带有 POST 到 Orion ( localhost:1026/v2/subscriptions) 的订阅，以便将其DummyEvent从 Orion 推送到 Perseo：
{
  "description": "A subscription to get info about DummyEvent1",
  "subject": {
    "entities": [
      {
        "id": "DummyEvent1",
        "type": "DummyEvent"
      }
    ],
    "condition": {
      "attrs": [ ]
    }
  },
  "notification": {
    "http": {
      "url": "http://perseo-fe:9090/notices"
    },
    "attrs": [
      "identification"
    ]
  }
}
  1. 第三，如果我在 Orion ( localhost:1026/v2/subscriptions) 中获取所有订阅，我可以看到 Orion 将DummyEvent正确转发给 Perseo：
{
  "id": "5ca5c18ab07f5ae96aa12152",
  "description": "A subscription to get info about DummyEvent1",
  "status": "active",
  "subject": {
    "entities": [
      {
        "id": "DummyEvent1",
          "type": "DummyEvent"
      }
    ],
    "condition": {
      "attrs": []
     }
  },
  "notification": {
    "timesSent": 1,
    "lastNotification": "2019-04-04T08:34:18.00Z",
      "attrs": [
        "identification"
      ],
      "attrsFormat": "normalized",
      "http": {
        "url": "http://perseo-fe:9090/notices"
      },
      "lastSuccess": "2019-04-04T08:34:18.00Z",
      "lastSuccessCode": 200
  }
}
  1. 第四，但是当我尝试使用以下方法在 Perseo ( localhost:8080/perseo-core/rules) 中发布规则时出现问题DummyEvent：
{
    "name": "dummy_rule",
    "text": "select * from DummyEvent",
    "action": {
        "type": "update",
        "parameters": {
            "name": "identification",
            "value": "updatedValue",
            "type": "string"
        }
    }
}

Perseo 告诉我：

{
    "error": "Failed to resolve event type: Event type or class named 'DummyEvent' was not found [select * from DummyEvent]"
}

我究竟做错了什么？

谢谢！

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