{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "deviceId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "applicationId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "creationDate": {
      "type": "string",
      "format": "date-time"
    },
    "lastUpdated": {
      "type": "string",
      "format": "date-time"
    },
    "name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 255
    },
    "description": {
      "type": "string",
      "maxLength": 32767
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "key": {
            "type": "string",
            "pattern": "^[0-9a-zA-Z_-]{1,255}$"
          },
          "value": {
            "type": "string",
            "minLength": 1,
            "maxLength": 255
          }
        },
        "required": [
          "key",
          "value"
        ],
        "additionalProperties": false
      }
    },
    "attributes": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string",
            "pattern": "^[0-9a-zA-Z_-]{1,255}$"
          },
          "dataType": {
            "type": "string",
            "enum": [
              "string",
              "number",
              "gps",
              "boolean"
            ]
          }
        },
        "required": [
          "name",
          "dataType"
        ],
        "additionalProperties": false
      }
    },
    "deviceClass": {
      "type": "string",
      "enum": [
        "standalone",
        "gateway",
        "peripheral",
        "floating",
        "virtual"
      ]
    },
    "gatewayId": {
      "type": "string",
      "pattern": "^[A-Fa-f\\d]{24}$"
    },
    "connectionInfo": {
      "type": "object",
      "properties": {
        "time": {
          "type": "string",
          "format": "date-time"
        },
        "connected": {
          "enum": [
            1,
            0,
            null
          ]
        }
      }
    }
  }
}