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

definitions:
  FmSubscriptionRequest:
    description: >
      This type represents a subscription request related to notifications
      about VNF faults.
    type: object
    required:
      - callbackUri
    properties:
      filter:
        description: >
          Filter settings for this subscription, to define the subset of all
          notifications this subscription relates to. A particular
          notification is sent to the subscriber if the filter matches, or if
          there is no filter.
        $ref: "#/definitions/FmNotificationsFilter"
      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 subscription, as defined in clause 8.3.4 of ETSI GS NFV-SOL 013.
          This attribute shall only be present if the subscriber requires authorization of notifications.
        $ref: "SOL002SOL003_def.yaml#/definitions/SubscriptionAuthentication"

  FmSubscription:
    description: >
      This type represents a subscription related to notifications about VNF
      faults.
    type: object
    required:
      - id
      - callbackUri
      - _links
    properties:
      id:
        description: >
          Identifier of this "Individual subscription" resource.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      filter:
        description: >
          Filter settings for this subscription, to define the subset of all
          notifications this subscription relates to. A particular
          notification is sent to the subscriber if the filter matches, or if
          there is no filter.
        $ref: "#/definitions/FmNotificationsFilter"
      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"

  Alarm:
    description: >
      The alarm data type encapsulates information about an alarm.
    type: object
    required:
      - id
      - managedObjectId
      - alarmRaisedTime
      - ackState
      - perceivedSeverity
      - eventTime
      - eventType
      - probableCause
      - isRootCause
      - _links
    properties:
      id:
        description: >
          Identifier of this Alarm information element.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      managedObjectId:
        description: >
          Identifier of the affected VNF instance.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      vnfcInstanceIds:
        description: >
          Identifiers of the affected VNFC instances. Each identifier references
          the "id" attribute in a "VnfcInfo" structure. Shall be present if the
          alarm affects at least one VNFC instance.
        type: array
        items:
          $ref: "SOL002SOL003_def.yaml#/definitions/IdentifierInVnf"
      rootCauseFaultyResource:
        description: >
          The virtualised resources that are causing the VNF fault.
          Shall be present if the alarm affects virtualised resources.
        $ref: "#/definitions/FaultyResourceInfo"
      alarmRaisedTime:
        description: >
          Time stamp indicating when the alarm is raised by the managed
          object.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      alarmChangedTime:
        description: >
          Time stamp indicating when the alarm was last changed. It shall be
          present if the alarm has been updated.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      alarmClearedTime:
        description: >
          Time stamp indicating when the alarm was cleared. It shall be
          present if the alarm has been cleared.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      alarmAcknowledgedTime:
        description: >
          Time stamp indicating when the alarm was acknowledged.
          It shall be present if the alarm has been acknowledged.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      ackState:
        description: >
          Acknowledgement state of the alarm.
          Permitted values:
          * UNACKNOWLEDGED
          * ACKNOWLEDGED.
        type: string
        enum:
          - UNACKNOWLEDGED
          - ACKNOWLEDGED
      perceivedSeverity:
        description: >
          Perceived severity of the managed object failure.
        $ref: "#/definitions/PerceivedSeverityType"
      eventTime:
        description: >
          Time stamp indicating when the fault was observed.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      eventType:
        description: >
          Type of event.
        $ref: "#/definitions/EventType"
      faultType:
        description: >
          Additional information to clarify the type of the fault.
        type: string
      probableCause:
        description: >
          Information about the probable cause of the fault.
        type: string
      isRootCause:
        description: >
          Attribute indicating if this fault is the root for other correlated
          alarms. If true, then the alarms listed in the attribute
          "correlatedAlarmId" are caused by this fault.
        type: boolean
      correlatedAlarmIds:
        description: >
          List of identifiers of other alarms correlated to this fault.
        type: array
        items:
          $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      faultDetails:
        description: >
          Provides additional information about the fault.
        type: array
        items:
          type: string
      _links:
        description: >
          Links for this resource.
        type: object
        required:
          - self
        properties:
          self:
            description: >
              URI of this resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/Link"
          objectInstance:
            description: >
              Link to the resource representing the VNF instance to which the
              notified alarm is correlated. Shall be present if the VNF
              instance information is accessible as a resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/Link"

  AlarmNotification:
    description: >
      This type represents an alarm notification about VNF faults.
      This notification shall be triggered by the VNFM when:
      * An alarm has been created.
      * An alarm has been updated, e.g. if the severity of the alarm has
        changed.
    type: object
    required:
      - id
      - notificationType
      - subscriptionId
      - timeStamp
      - alarm
      - _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
          "AlarmNotification" for this notification type.
        type: string
        enum:
          - AlarmNotification
      subscriptionId:
        description: >
          Identifier of the subscription that this notification relates to.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      timeStamp:
        description: >
          Date-time of the generation of the notification.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      alarm:
        description: >
          Information about an alarm including AlarmId, affected VNF
          identifier, and FaultDetails.
        $ref: "#/definitions/Alarm"
      _links:
        description: >
          Links to resources related to this notification.
        type: object
        required:
          - subscription
        properties:
          subscription:
            description: >
              Link to the related subscription.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"

  AlarmClearedNotification:
    description: >
      This type represents an alarm cleared notification about VNF faults.
      The notification shall be triggered by the VNFM when an alarm has been
      cleared.
    type: object
    required:
      - id
      - notificationType
      - subscriptionId
      - timeStamp
      - alarmId
      - alarmClearedTime
      - _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
          "AlarmClearedNotification" for this notification type.
        type: string
        enum:
          - AlarmClearedNotification
      subscriptionId:
        description: >
          Identifier of the subscription that this notification relates to.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      timeStamp:
        description: >
          Date-time of the generation of the notification.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      alarmId:
        description: >
          Alarm identifier.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      alarmClearedTime:
        description: >
          The time stamp indicating when the alarm was cleared.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      _links:
        description: >
          Links to resources related to this notification.
        type: object
        required:
          - subscription
          - alarm
        properties:
          subscription:
            description: >
              Link to the related subscription.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"
          alarm:
            description: >
              Link to the resource that represents the related alarm.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"

  AlarmListRebuiltNotification:
    description: >
      This type represents a notification that the alarm list has been
      rebuilt, e.g. if the VNFM detects its storage holding the alarm
      list is corrupted.
      The notification shall be triggered by the VNFM when the alarm list has
      been rebuilt, e.g. because the VNFM has detected that its storage
      holding the alarm list was corrupted.
    type: object
    required:
      - id
      - notificationType
      - subscriptionId
      - timeStamp
      - _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
          "AlarmListRebuiltNotification" for this notification type.
        type: string
        enum:
          - AlarmListRebuiltNotification
      subscriptionId:
        description: >
          Identifier of the subscription that this notification relates to.
        $ref: "SOL002SOL003_def.yaml#/definitions/Identifier"
      timeStamp:
        description: >
          Date-time of the generation of the notification.
        $ref: "SOL002SOL003_def.yaml#/definitions/DateTime"
      _links:
        description: >
          Links to resources related to this notification.
        type: object
        required:
          - subscription
          - alarms
        properties:
          subscription:
            description: >
              Link to the related subscription.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"
          alarms:
            description: >
              Link to the alarm list, i.e. the "Alarms" resource.
            $ref: "SOL002SOL003_def.yaml#/definitions/NotificationLink"

  AlarmModifications:
    description: >
      This type represents attribute modifications for an "Individual alarm"
      resource, i.e. modifications to a resource representation based on the
      "Alarm" data type. The attributes of "Alarm" that can be modified
      are included in the "AlarmModifications" data type.
    type: object
    required:
      - ackState
    properties:
      ackState:
        description: >
          New value of the "ackState" attribute in "Alarm".
          Permitted values:
          * ACKNOWLEDGED
          * UNACKNOWLEDGED
        type: string
        enum:
          - ACKNOWLEDGED
          - UNACKNOWLEDGED

  EventType:
    description: >
      The enumeration EventType represents those types of events that trigger
      an alarm.
      * COMMUNICATIONS_ALARM: An alarm of this type is associated with the
        procedure and/or process required conveying information from one point
        to another (ITU-T Recommendation X.733).
      * PROCESSING_ERROR_ALARM: An alarm of this type is associated with a
        software or processing fault (ITU-T Recommendation X.733).
      * ENVIRONMENTAL_ALARM: An alarm of this type is associated with a
        condition related to an enclosure in which the equipment resides
        (ITU-T Recommendation X.733).
      * QOS_ALARM: An alarm of this type is associated with degradation in the
        quality of a service (ITU-T Recommendation X.733).
      * EQUIPMENT_ALARM: An alarm of this type is associated with an equipment
        fault (ITU-T Recommendation X.733).
    type: string
    enum:
      - COMMUNICATIONS_ALARM
      - PROCESSING_ERROR_ALARM
      - ENVIRONMENTAL_ALARM
      - QOS_ALARM
      - EQUIPMENT_ALARM

  FaultyResourceInfo:
    description: >
      This type represents the faulty virtual resources that have a negative
      impact on a VNF.
    type: object
    required:
      - faultyResource
      - faultyResourceType
    properties:
      faultyResource:
        description: >
          Information that identifies the faulty resource instance and its
          managing entity.
        $ref: "SOL002SOL003_def.yaml#/definitions/ResourceHandle"
      faultyResourceType:
        description: >
          Type of the faulty resource.
        $ref: "#/definitions/FaultyResourceType"

  FaultyResourceType:
    description: >
      The enumeration FaultyResourceType represents those types of faulty
      resource.
    type: string
    enum:
      - COMPUTE
      - STORAGE
      - NETWORK

  FmNotificationsFilter:
    description: >
      This type represents a subscription filter related to notifications
      about VNF faults.
      At a particular nesting level in the filter structure, the following
      applies: All attributes shall match in order for the filter to match
      (logical "and" between different filter attributes). If an attribute is
      an array, the attribute shall match if at least one of the values in the
      array matches (logical "or" between the values of one filter attribute).
    type: object
    properties:
      vnfInstanceSubscriptionFilter:
        description: >
          Filter criteria to select VNF instances about which to notify.    
        $ref: "SOL002SOL003_def.yaml#/definitions/VnfInstanceSubscriptionFilter"
      notificationTypes:
        description: >
          Match particular notification types.
          Permitted values:
          * AlarmNotification
          * AlarmClearedNotification
          * AlarmListRebuiltNotification
          The permitted values of the "notificationTypes" attribute are
          spelled exactly as the names of the notification types to
          facilitate automated code generation systems.
        type: array
        items:
          type: string
          enum:
            - AlarmNotification
            - AlarmClearedNotification
            - AlarmListRebuiltNotification
      faultyResourceTypes:
        description: >
          Match VNF alarms with a faulty resource type listed in this
          attribute.
        type: array
        items:
          $ref: "SOL002SOL003VNFFaultManagement_def.yaml#/definitions/FaultyResourceType"
      perceivedSeverities:
        description: >
          Match VNF alarms with a perceived severity listed in this attribute.
        type: array
        items:
          $ref: "SOL002SOL003VNFFaultManagement_def.yaml#/definitions/PerceivedSeverityType"
      eventTypes:
        description: >
          Match VNF alarms with an event type listed in this attribute.
        type: array
        items:
          $ref: "SOL002SOL003VNFFaultManagement_def.yaml#/definitions/EventType"
      probableCauses:
        description: >
          Match VNF alarms with a probable cause listed in this attribute.
        type: array
        items:
          type: string

  PerceivedSeverityType:
    description: >
      Indicates the relative level of urgency for operator attention.
      * CRITICAL: The Critical severity level indicates that a service
        affecting condition has occurred and an immediate corrective action
        is required. Such a severity can be reported, for example, when a
        managed object becomes totally out of service and its capability needs
        to be restored (ITU-T Recommendation X.733).
      * MAJOR: The Major severity level indicates that a service affecting
        condition has developed and an urgent corrective action is required.
        Such a severity can be reported, for example, when there is a severe
        degradation in the capability of the managed object and its full
        capability needs to be restored (ITU-T Recommendation X.733).
      * MINOR: The Minor severity level indicates the existence of a
        non-service affecting fault condition and that corrective action
        should be taken in order to prevent a more serious (for example,
        service affecting) fault. Such a severity can be reported, for
        example, when the detected alarm condition is not currently degrading
        the capacity of the managed object (ITU-T Recommendation X.733).
      * WARNING: The Warning severity level indicates the detection of a
        potential or impending service affecting fault, before any significant
        effects have been felt. Action should be taken to further diagnose (if
        necessary) and correct the problem in order to prevent it from
        becoming a more serious service affecting fault (ITU-T Recommendation
        X.733).
      * INDETERMINATE: The Indeterminate severity level indicates that the
        severity level cannot be determined (ITU-T Recommendation X.733).
      * CLEARED: The Cleared severity level indicates the clearing of one or
        more previously reported alarms. This alarm clears all alarms for this
        managed object that have the same Alarm type, Probable cause and
        Specific problems (if given) (ITU-T Recommendation X.733).
    type: string
    enum:
      - CRITICAL
      - MAJOR
      - MINOR
      - WARNING
      - INDETERMINATE
      - CLEARED