# Copyright (c) ETSI 2017.
# https://forge.etsi.org/etsi-forge-copyright-notice.txt

definitions:
  CreateThresholdRequest:
    description: >
      This type represents a request to create a threshold.
    type: object
    required:
      - objectType
      - objectInstanceId
      - criteria
      - callbackUri
    properties:
      objectType:
        description: >
          Type of the measured object.
          The applicable measured object type for a measurement
          is defined in clause 7.2 of ETSI GS NFV-IFA 027.
        type: string
      objectInstanceId:
        description: >
          Identifier of the VNF instance associated with this threshold.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      subObjectInstanceIds:
        description: >
          Identifiers of the sub-object instances of the measured
          object instance associated with this threshold.
          May be present if a sub-object is defined in clause 6.2
          of ETSI GS NFV-IFA 027 for the related measured object type.
          If this attribute is absent and a sub-object is defined in
          clause 6.2 of ETSI GS NFV-IFA 027 for the measured object type,
          measurements will be taken for all sub-object instances of
          the measured object instance.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/IdentifierInVnf"
      criteria:
        description: >
          Criteria that define this threshold.
        $ref: "#/definitions/ThresholdCriteria"
      callbackUri:
        description: >
          The URI of the endpoint to send the notification to.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      authentication:
        description: >
          Authentication parameters to configure the use of Authorization
          when sending notifications corresponding to this threshold,
          as defined in clause 8.3.4 of ETSI GS NFV-SOL 013.
          This attribute shall only be present if the API consumer requires
          authorization of notifications.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/SubscriptionAuthentication"

  CreatePmJobRequest:
    description: >
      This type represents a request to create a PM job.
    type: object
    required:
      - objectType
      - objectInstanceIds
      - criteria
      - callbackUri
    properties:
      objectType:
        description: >
          Type of the measured object.
          The applicable measured object type for a measurement
           is defined in clause 7.2 of ETSI GS NFV-IFA 027.
        type: string
      objectInstanceIds:
        description: >
          Identifiers of the measured object instances for
          which performance information is requested to be collected.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      subObjectInstanceIds:
        description: >
          Identifiers of the sub-object instances of the measured
          object instance for which performance information is requested to be collected.
          May be present if a sub-object is defined in clause 6.2
          of ETSI GS NFV-IFA 027for the related measured object type.
          If this attribute is present, the cardinality of the "objectInstanceIds"
          attribute shall be 1.
          If this attribute is absent and a sub-object is defined in clause 6.2
          of ETSI GS NFV IFA 027 for the related measured object type, measurements
          will be taken for all sub-object instances of the measured object instance.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/IdentifierInVnf"
      criteria:
        description: >
          Criteria of the collection of performance information.
        $ref: "#/definitions/PmJobCriteria"
      callbackUri:
        description: >
          The URI of the endpoint to send the notification to.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      authentication:
        description: >
          Authentication parameters to configure the use of Authorization
          when sending notifications corresponding to this PM job, as defined
          in clause 8.3.4 of ETSI GS NFV-SOL 013.
          This attribute shall only be present if the API consumer
          requires authorization of notifications.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/SubscriptionAuthentication"

  PerformanceReport:
    description: >
      This type defines the format of a performance report provided by the VNFM to the NFVO as a result of collecting 
      performance information as part of a PM job. The type shall comply with the provisions defined in table 6.5.2.10-1.

      NOTE:	The sub-object allows to structure the measured object but is not to be confused with sub-counters which allow 
            to structure the measurement value.

      EXAMPLE:
        Measured object: VnfInstanceXYZ
        Sub-object: VnfcInstance1
        Measurement: vCPU_utilization
        Sub-counters: vCPU utilization of each of the vCPUs of VnfcInstance1 (vCPU utilization.vCPU1, vCPU_utilization.vCPU2, etc.).
    type: object
    required:
      - entries
    properties:
      entries:
        description: >
          List of performance information entries. Each performance report
          entry is for a given metric of a given object (i.e. VNF instance),
          but can include multiple collected values.
        type: array
        items:
          type: object
          required:
            - objectType
            - objectInstanceId
            - performanceMetric
            - performanceValue
          properties:
            objectType:
              description: >
                Type of the measured object.
                The applicable measured object type for a measurement is defined
                in clause 7.2 of ETSI GS NFV-IFA 027.
              type: string
            objectInstanceId:
              description: >
                Identifier of the measured object instance for which the performance metric is reported
              $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
            subObjectInstanceId:
              description: >
                Identifier of the sub-object instance of the measured object instance for which the performance 
                metric is reported. Shall be present if this is required in clause 6.2 of ETSI GS NFV-IFA 027
                for the related measured object type. See note.
              $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/IdentifierInVnf"
            performanceMetric:
              description: >
                Name of the metric collected. This attribute shall contain the related "Measurement Name"
                value as defined in clause 7.2 of ETSI GS NFV-IFA 027.
              type: string
            performanceValues:
              description: >
                List of performance values with associated timestamp.
              type: array
              items:
                type: object
                required:
                  - timeStamp
                  - value
                properties:
                  timeStamp:
                    description: >
                      Time stamp indicating when the data has been collected.
                    $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/DateTime"
                  value:
                    description: >
                      Value of the metric collected.
                      The type of this attribute shall correspond to the related "Measurement Unit"
                      as defined in clause 7.2. of ETSI GS NFV-IFA 027.
                    type: object
                  context:
                    description: >
                      Measurement context information related to the measured value.
                      The set of applicable keys is defined per measurement in the
                      related "Measurement Context" in clause 7.2 of ETSI GS NFV-IFA 027.
                    $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/KeyValuePairs"

  PmJob:
    description: >
      This type represents a PM job.
    type: object
    required:
      - id
      - objectType
      - objectInstanceIds
      - criteria
      - callbackUri
      - _links
    properties:
      id:
        description: >
          Identifier of this PM job.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      objectType:
        description: >
          Type of the measured object.
          The applicable measured object type for a measurement
          is defined in clause 7.2 of ETSI GS NFV-IFA 027.
        type: string
      objectInstanceIds:
        description: >
          Identifiers of the VNF instances for which performance information
          is collected.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      subObjectInstanceIds:
        description: >
          Identifiers of the sub-object instances of the measured object
          instance for which performance information is requested to be collected.
          May be present if a sub-object is defined in clause 6.2 of
          ETSI GS NFV-IFA 027 for the related measured object type.
          If this attribute is present, the cardinality of the "objectInstanceIds"
          attribute shall be 1.
          If this attribute is absent and a sub-object is defined in clause 6.2 of
          ETSI GS NFV IFA 027 for the related measured object type, measurements will
          be taken for all sub-object instances of the measured object instance.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/IdentifierInVnf"
      criteria:
        description: >
          Criteria of the collection of performance information.
        $ref: "#/definitions/PmJobCriteria"
      callbackUri:
        description: >
          The URI of the endpoint to send the notification to.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      reports:
        description: >
          Information about available reports collected by this PM job.
        type: object
        required:
          - href
          - readyTime
        properties:
          href:
            description: >
              The URI where the report can be obtained.
            type: string
            format: url
          readyTime:
            description: >
              The time when the report was made available.
            $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/DateTime"
          expiryTime:
            description: >
              The time when the report will expire.
            $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/DateTime"
          fileSize:
            description: >
              The size of the report file in bytes, if known.
            type: integer 
            minimum: 0
            maximum: 1024
            # TODO: How to express unsigned int? 
            # Done using min and max params to set a range for positive int.
      _links:
        description: >
          Links for this resource.
        type: object
        required:
          - self
        properties:
          self:
            description: >
              URI of this resource.
            $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Link"
          objects:
            description: >
              Links to resources representing the measure
              object instances for which performance
              information is collected. Shall be present if the
              measured object instance information is
              accessible as a resource.
            type: array
            items:
              $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Link"

  PmJobModifications:
    description: >
      This type represents modifications to a PM job. It shall comply with the provisions defined in table 6.5.2.12-1.

      NOTE:	At least one of the attributes defined in this type shall be present in request bodies.
    type: object
    oneOf:
      - required:
          - callbackUri
      - required:
          - authentication
    properties:
      callbackUri:
        description: >
          New value of the "callbackUri" attribute. The value "null" is not permitted. See note.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      authentication:
        description: >
          New value of the "authentication" attribute, or "null" to remove the attribute. If present 
          in a request body, these modifications shall be applied according to the rules of JSON Merge 
          Patch (see IETF RFC 7396).
          
          This attribute shall not be present in response bodies. See note.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/SubscriptionAuthentication"

  PmJobCriteria:
    description: >
      This type represents collection criteria for PM jobs. It shall comply with the provisions defined in table 6.5.3.3-1.

      NOTE 1:	At the end of each reportingPeriod, the API producer will inform the API consumer about availability of the 
              performance data collected for each completed collection period during this reportingPeriod. 
              The reportingPeriod should be equal to or a multiple of the collectionPeriod. In the latter case, the performance 
              data for the collection periods within one reporting period are reported together.
      NOTE 2:	In particular when choosing short collection and reporting periods, the number of PM jobs that can be supported 
              depends on the capability of the producing entity.
    type: object
    required:
      - collectionPeriod
      - reportingPeriod
    properties:
      performanceMetric:
        description: >
          This defines the types of performance metrics for the specified object instances.
          Valid values are specified as "Measurement Name" values in clause 7.2 of ETSI GS NFV-IFA 027.
          At least one of the two attributes (performance metric or group) shall be present.
        type: array
        items:
          type: string
      performanceMetricGroup:
        description: >
          Group of performance metrics. A metric group is a pre-defined list
          of metrics, known to the API producer that it can decompose to
          individual metrics. Valid values are specified as "Measurement Group"
          values in clause 7.2 of ETSI GS NFV-IFA 027.
          At least one of the two attributes (performance metric or group)
          shall be present.
        type: array
        items:
          type: string
      collectionPeriod:
        description: >
          SSpecifies the periodicity at which the API producer will collect performance information. 
          The unit shall be seconds. See notes 1 and 2.
        type: integer
        minimum: 0
        maximum: 1024
        # TODO: How to express unsigned int?
        # Done using min and max params to set a range for positive int.
      reportingPeriod:
        description: >
          Specifies the periodicity at which the API producer will report to the API consumer 
          about performance information. The unit shall be seconds. See notes 1 and 2.
        type: integer
        minimum: 0
        maximum: 1024
        # TODO: How to express unsigned int?
        # Done using min and max params to set a range for positive int.
      reportingBoundary:
        description: >
          Identifies a time boundary after which the reporting will stop.
          The boundary shall allow a single reporting as well as periodic
          reporting up to the boundary.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/DateTime"

  Threshold:
    description: >
      This type represents a threshold.
    type: object
    required:
      - id
      - objectType
      - objectInstanceId
      - criteria
      - callbackUri
      - _links
    properties:
      id:
        description: >
          Identifier of this threshold resource.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      objectType:
        description: >
          Type of the measured object.
          The applicable measured object type for a measurement
          is defined in clause 7.2 of ETSI GS NFV-IFA 027.
        type: string
      objectInstanceId:
        description: >
          Identifier of the VNF instance associated with the threshold.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Identifier"
      subObjectInstanceIds:
        description: >
          Identifiers of the sub-object instances of the measured object
          instance associated with the threshold.
          May be present if a sub-object is defined in clause 6.2 of
          ETSI GS NFV-IFA 027 for the related measurement type.
          If this attribute is absent and a sub-object is defined in clause 6.2
          of ETSI GS NFV-IFA 027 for the related measured object type,
          measurements will be taken for all sub-object instances of the
          measured object instance.
        type: array
        items:
          $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/IdentifierInVnf"
      criteria:
        description: >
          Criteria that define this threshold.
        $ref: "#/definitions/ThresholdCriteria"
      callbackUri:
        description: >
          The URI of the endpoint to send the notification to.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      _links:
        description: >
          Links for this resource.
        type: object
        required:
          - self
        properties:
          self:
            description: >
              URI of this resource.
            $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Link"
          object:
            description: >
              Link to a resource representing the measured object instance for which
              performance information is collected. Shall be present if the
              measured object instance information is accessible as a resource.
            $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Link"

  ThresholdModifications:
    description: >
      This type represents modifications to a threshold. It shall comply with the provisions defined in table 6.5.2.11-1.

      NOTE:	At least one of the attributes defined in this type shall be present in request bodies.
    type: object
    oneOf:
      - required:
          - callbackUri
      - required:
          - authentication
    properties:
      callbackUri:
        description: >
          New value of the "callbackUri" attribute. The value "null" is not permitted. See note.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/Uri"
      authentication:
        description: >
          New value of the "authentication" attribute, or "null" to remove the attribute. If present 
          in a request body, these modifications shall be applied according to the rules of JSON Merge 
          Patch (see IETF RFC 7396).
          This attribute shall not be present in response bodies. See note.
        $ref: "../../General_Definitions/SOL002_def.yaml#/definitions/SubscriptionAuthentication"

  ThresholdCriteria:
    description: >
      This type represents criteria that define a threshold. It shall comply with the provisions defined in table 6.5.3.4-1.

      NOTE 1:	In the present document, simple thresholds are defined. The definition of additional threshold types is left for 
              future specification.
      NOTE 2:	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). 
    type: object
    required:
      - performanceMetric
      - thresholdType
    properties:
      performanceMetric:
        description: >
          Defines the performance metric associated with the threshold.
          Valid values are specified as "Measurement Name" values in clause 7.2 of ETSI GS NFV-IFA 027.
        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.
          See note 1.
        type: string
        enum:
          - SIMPLE
      simpleThresholdDetails:
        description: >
          Details of a simple threshold. Shall be present if
          thresholdType="SIMPLE".
        type: object
        required:
          - thresholdValue
          - hysteresis
        properties:
          thresholdValue:
            description: >
              The threshold value. Shall be represented as a floating point
              number.
            # TODO: This should be floating.
            # Done using Number type and floating formate             
            type: number
            format: float
          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". See note 2.
            # TODO: This should be floating.
            # Done using Number type and floating format.
            type: number
            minimum: 0
            maximum: 1024
            format: float
