# 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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_def.yaml#/definitions/SubscriptionAuthentication"

  CrossingDirectionType:
    type: string
    enum:
      - UP
      - DOWN

  PerformanceInformationAvailableNotification:
    description: >
      This notification informs the receiver that performance information is
      available.
      The notification shall be triggered by the VNFM when new performance
      information collected by a PM job is available.
      The periodicity of triggering this notification is influenced by the 
      "reportingPeriod" attribute in the "PmJobCriteria" data structure.
    type: object
    required:
      - id
      - notificationType
      - timeStamp
      - pmJobId
      - objectType
      - objectInstanceId
      - _links
    properties:
      id:
        description: >
          Identifier of this notification. If a notification is sent multiple
          times due to multiple subscriptions, the "id" attribute of all these
          notifications shall have the same value.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      notificationType:
        description: >
          Discriminator for the different notification types. Shall be set to
          "PerformanceInformationAvailableNotification" for this notification
          type.
        type: string
        enum:
          - PerformanceInformationAvailableNotification
      timeStamp:
        description: >
          Date and time of the generation of the notification.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      pmJobId:
        description: >
          Identifier of the PM job for which performance information is available.
        $ref: "SOL002SOL003_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 measured object instance. as per clause 6.2 of ETSI GS NFV-IFA 027.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      subObjectInstanceIds:
        description: >
          Identifiers of the sub-object instances of the measured
          object instance for which the measurements have been taken.
          Shall be present if the related PM job has been set up to
          measure only a subset of all sub-object instances of the
          measured object instance and a sub-object is defined in clause
           6.2 of ETSI GS NFV-IFA 027 for the related measured object type.
          Shall be absent otherwise.
        type: array
        items:
          $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnf"
      _links:
        description: >
          Links to resources related to this notification.
        type: object
        required:
          - pmJob
          - performanceReport
        properties:
          objectInstance:
            description: >
              Link to the resource representing the measured object instance to which the
              notification applies. Shall be present if the measured object instance
              information is accessible as a resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"
          pmJob:
            description: >
              Link to the resource that represents the PM job for which
              performance information is available.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"
          performanceReport:
            description: >
              Link from which the available performance information of data
              type "PerformanceReport" can be obtained. This link should point
              to an "Individual performance report" resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"

  PerformanceReport:
    description: >
      This type defines the format of a performance report provided by the VNFM to the EM 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.
    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: "SOL002SOL003_def.yaml#/definitions/Identifier"
            subObjectInstanceId:
              description: >
                Identifier of the sub-object instance of the measured object (i.e. 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.
                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.).
              $ref: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_def.yaml#/definitions/DateTime"
          expiryTime:
            description: >
              The time when the report will expire.
            $ref: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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.
    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: "SOL002SOL003_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.
          At least one of the attributes defined in this type shall be present in request bodies.
        $ref: "SOL002SOL003_def.yaml#/definitions/SubscriptionAuthentication"

  PmJobCriteria:
    description: >
      Criteria of the collection of performance information.
    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: >
          Specifies the periodicity at which the API producer will collect
          performance information. The unit shall be seconds.
          At the end of each reportingPeriod, the API producer will inform the
          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.
        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.
          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.
        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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_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: "SOL002SOL003_def.yaml#/definitions/Uri"
      _links:
        description: >
          Links for this resource.
        type: object
        required:
          - self
        properties:
          self:
            description: >
              URI of this resource.
            $ref: "SOL002SOL003_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: "SOL002SOL003_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.
    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: "SOL002SOL003_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.
          At least one of the attributes defined in this type shall be present in request bodies.
        $ref: "SOL002SOL003_def.yaml#/definitions/SubscriptionAuthentication"

  ThresholdCriteria:
    description: >
      This type represents criteria that define a threshold.
    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
          In the present document, simple thresholds are defined. The
          definition of additional threshold types is left for future
          specification.
        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".
              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).
            # TODO: This should be floating.
            # Done using Number type and floating format.
            type: number
            minimum: 0
            maximum: 1024
            format: float


  ThresholdCrossedNotification:
    description: >
      This type represents a notification that is sent when a threshold has
      been crossed.
      The timing of sending this notification is determined by the capability
      of the producing entity to evaluate the threshold crossing condition.
      The notification shall be triggered by the VNFM when a threshold has
      been crossed.
    type: object
    required:
      - id
      - notificationType
      - timeStamp
      - thresholdId
      - crossingDirection
      - objectType
      - objectInstanceId
      - performanceMetric
      - performanceValue
      - _links
    properties:
      id:
        description: >
          Identifier of this notification. If a notification is sent multiple
          times due to multiple subscriptions, the "id" attribute of all these
          notifications shall have the same value.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      notificationType:
        description: >
          Discriminator for the different notification types. Shall be set to
          "ThresholdCrossedNotification" for this notification type.
        type: string
        enum:
          - ThresholdCrossedNotification
      timeStamp:
        description: >
          Date and time of the generation of the notification.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      thresholdId:
        description: >
          Identifier of the threshold which has been crossed.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      crossingDirection:
        description: >
          An indication of whether the threshold was crossed in upward or
          downward direction.
        $ref: "#/definitions/CrossingDirectionType"
      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 that identifies a VNF instance.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      subObjectInstanceId:
        description: >
          Identifier of the sub-object of the measured object (i.e. a VNFC instance)
          to which the measurement applies.
          Shall be present if this is required in an external measurement specification.
          The sub-object allows to structure the measured object, but is not to be confused
          with sub-counters which allow to structure the measurement.
        $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnf"
      performanceMetric:
        description: >
          Performance metric associated with the threshold.
          This attribute shall contain the related "Measurement Name"
          value as defined in clause 7.2 of ETSI GS NFV-IFA 027.
        type: string
      performanceValue:
        description: >
          Value of the metric that resulted in threshold crossing.
          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: "SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
      _links:
        description: >
          Links to resources related to this notification.
        type: object
        required:
          - threshold
        properties:
          objectInstance:
            description: >
              Link to the resource representing the measured object instance to which the
              notified change applies. Shall be present if the measured object instance
              information is accessible as a resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"
          threshold:
            description: >
              Link to the resource that represents the threshold that was
              crossed.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"