{
  "description": "This type represents a threshold.\n",
  "type": "object",
  "required": [
    "id",
    "objectInstanceId",
    "criteria",
    "_links"
  ],
  "properties": {
    "id": {
      "description": "An identifier with the intention of being globally unique.\n",
      "type": "string"
    },
    "objectInstanceId": {
      "description": "An identifier with the intention of being globally unique.\n",
      "type": "string"
    },
    "criteria": {
      "description": "This type represents criteria that define a threshold.\n",
      "type": "object",
      "required": [
        "performanceMetric",
        "thresholdType"
      ],
      "properties": {
        "performanceMetric": {
          "description": "Defines the performance metric associated with the threshold, as specified in ETSI GS NFV-IFA 027).\n",
          "type": "string"
        },
        "thresholdType": {
          "description": "Type of threshold. This attribute determines which other attributes are present in the data structure. Permitted values: * SIMPLE: Single-valued static threshold In the present document, simple thresholds are defined. The definition of additional threshold types is left for future specification.\n",
          "type": "string",
          "enum": [
            "SIMPLE"
          ]
        },
        "simpleThresholdDetails": {
          "description": "Details of a simple threshold. Shall be present if thresholdType=\"SIMPLE\".\n",
          "type": "object",
          "required": [
            "thresholdValue",
            "hysteresis"
          ],
          "properties": {
            "thresholdValue": {
              "description": "The threshold value. Shall be represented as a floating point number.\n",
              "type": "integer"
            },
            "hysteresis": {
              "description": "The hysteresis of the threshold. Shall be represented as a non-negative floating point number. A notification with crossing direction \"UP\" will be generated if the measured value reaches or exceeds \"thresholdValue\" + \"hysteresis\". A notification with crossing direction \"DOWN\" will be generated if the measured value reaches or undercuts \"thresholdValue\" - \"hysteresis\". The hysteresis is defined to prevent storms of threshold crossing notifications. When processing a request to create a threshold, implementations should enforce a suitable minimum value for this attribute (e.g. override the value or reject the request).\n",
              "type": "integer"
            }
          }
        }
      }
    },
    "_links": {
      "description": "Links for this resource.\n",
      "type": "object",
      "required": [
        "self"
      ],
      "properties": {
        "self": {
          "description": "This type represents a link to a resource.\n",
          "type": "object",
          "required": [
            "href"
          ],
          "properties": {
            "href": {
              "description": "URI of the referenced resource.\n",
              "type": "string",
              "format": "url"
            }
          }
        },
        "object": {
          "description": "Link to a resource representing the VNF instance for which performance information is collected. Shall be present if the VNF instance information is accessible as a resource.\n"
        }
      }
    }
  }
}