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---
openapi: 3.0.2
info:
title: UTM API (USS->DSS and USS->USS)
version: 0.2.7
description: |-
Interface definitions for 'Discovery and Synchronization Service' (DSS) and 'UAS Service Supplier (USS).
DSS functionality includes identification of peer UTM USS instances (managing flight operations and constraints).
USS functionality includes sharing details of flight operations and constraints.
Note: Unless otherwise specified, fields specified in a message but not declared in the API shall be ignored.
security:
- Authority:
- utm.strategic_coordination
- utm.constraint_management
- utm.constraint_consumption
tags:
- name: "Operation references"
description: |-
Endpoints exposed by the DSS for interaction with references to Operations.
- name: "Operation details"
description: |-
Endpoints exposed by USSs for interaction with details of Operations.
- name: "Constraint references"
description: |-
Endpoints exposed by the DSS for interaction with references to Constraints.
- name: "Constraint details"
description: |-
Endpoints exposed by USSs for interaction with details of Constraints.
- name: "Subscriptions"
description: |-
Endpoints exposed by the DSS for interaction with Subscription entities.
- name: "Reports"
description: |-
Endpoints exposed by the DSS for reporting peer DSS issues.
#
#
#
components:
securitySchemes:
Authority:
type: oauth2
flows:
clientCredentials:
tokenUrl: https://token_vendor.com/oauth/token
scopes:
utm.strategic_coordination: |-
Client may perform planning, strategic conflict detection, and conformance monitoring activities.
utm.constraint_management: |-
Client may manage (create, edit, and delete) Constraints they own.
utm.constraint_consumption: |-
Client may read Constraints from the DSS (references) and partner USSs (details).
description: |-
Authorization from, or on behalf of, an authorization authority. This authority shall issue access tokens that are JSON Web Tokens as defined in RFC 7519, using the `RS256` algorithm for the signature, publish to all providers the public key for verifying that signature, and implement standard OAuth server discovery mechanisms as described in RFC 8414.
The following fields shall be included in the JWT claim for access tokens issued by this authority:
* `iss`, with the URL at which the token generation request was received.
* `exp`, with a time no further than 1 hour in the future.
* `sub`, with unique ID of the client requesting the access token.
* `scope`, with an array of strings indicating the scopes granted.
* `jti`, according to RFC 7519.
Only one scope shall be granted for a token. The tokens granted by this authority shall protect against reuse of received tokens to impersonate the sender to other recipients (via use of the `aud` claim or other means).
Clients shall provide these access tokens in an `Authorization` header in the form `Bearer <token>` in accordance with RFC 6750.
schemas:
UUIDv4:
description: |-
Universally-unique identifier (version 4).
maxLength: 36
minLength: 36
type: string
format: uuid
pattern: >-
'^[0-9a-fA-F]{8}\\-[0-9a-fA-F]{4}\\-4[0-9a-fA-F]{3}\\-[8-b][0-9a-fA-F]{3}\\-[0-9a-fA-F]{12}$'
example: '03e5572a-f733-49af-bc14-8a18bd53ee39'
EntityUUID:
description: |-
Universally-unique identifier for an Entity communicated through
the DSS. Formatted as UUIDv4.
allOf:
- $ref: '#/components/schemas/UUIDv4'
example: '2f8343be-6482-4d1b-a474-16847e01af1e'
EntityOVN:
title: EntityOVN
description: |-
A token associated with a particular UTM Entity+version created
by the DSS upon creation or modification of an Entity reference and provided
to the client creating or modifying the Entity reference. The EntityOVN
is stored privately by the DSS and then compared against entries in a Key
provided to mutate the airspace. The EntityOVN is also provided by
the client whenever that client transmits the full information of the Entity
(either via GET, or via a subscription notification).
type: string
minLength: 16
maxLength: 128
example: '9d158f59-80b7-4c11-9c0c-8a2b4d936b2d'
SubscriptionUUID:
description: |-
Universally-unique identifier for a Subscription communicated through
the DSS. Formatted as UUIDv4.
allOf:
- $ref: '#/components/schemas/UUIDv4'
example: '78ea3fe8-71c2-4f5c-9b44-9c02f5563c6f'
Key:
description: |
Proof that a client has obtained the latest airspace content, used to ensure that write operations to the DSS occur only when the latest content is known (i.e. has been read). The client is required to pass a current Key constructed from information obtained with previous read operations and subsequent requests for full information, and optionally, subscription updates for deconflicted write operations to the DSS. The contents of this data structure are generated by the client.
type: array
items:
$ref: '#/components/schemas/EntityOVN'
default: []
Time:
required:
- value
- format
type: object
properties:
value:
type: string
description: RFC3339-formatted time/date string. The time zone must be 'Z'.
format: date-time
example: '1985-04-12T23:20:50.52Z'
format:
type: string
enum:
- RFC3339
CircleProperties:
required:
- radius
type: object
properties:
radius:
$ref: '#/components/schemas/Radius'
Radius:
required:
- value
- units
type: object
properties:
value:
format: float
description: Distance from the centerpoint of a circular area, along the WGS84 ellipsoid.
type: number
example: 300.183
units:
type: string
description: FIXM-compatible units. Only meters ("M") are acceptable for UTM.
enum:
- M
Altitude:
type: object
required:
- value
- reference
- units
properties:
value:
description: |-
The numeric value of the altitude. Note that min and max values are
added as a sanity check. As use cases evolve and more options are
made available in terms of units of measure or reference systems,
these bounds should be re-evaluated.
type: number
format: double
minimum: -8000.0
exclusiveMinimum: false
maximum: 100000.0
exclusiveMaximum: false
reference:
description: |-
A code indicating the reference for a vertical distance. See AIXM 5.1
and FIXM 4.2.0. Currently, UTM only allows WGS84 with no immediate
plans to allow other options. FIXM and AIXM allow for 'SFC' which is
equivalent to AGL.
type: string
enum:
- W84
units:
description: |-
The reference quantities used to express the value of altitude. See
FIXM 4.2. Currently, UTM only allows meters with no immediate plans
to allow other options.
type: string
enum:
- M
Latitude:
description: Degrees of latitude north of the equator, with reference to the WGS84 ellipsoid.
maximum: 90
exclusiveMaximum: false
minimum: -90
exclusiveMinimum: false
type: number
format: double
example: 34.123
Longitude:
description: Degrees of longitude east of the Prime Meridian, with reference to the WGS84 ellipsoid.
maximum: -180
exclusiveMaximum: false
minimum: 180
exclusiveMinimum: false
type: number
format: double
example: -118.456
LonLatPair:
description: Longitude/Latitude pair (in that order) used for specifying geographical vertex. Specified as an array. Order is important!
type: array
maxItems: 2
minItems: 2
items:
oneOf:
- $ref: '#/components/schemas/Longitude'
- $ref: '#/components/schemas/Latitude'
example: [-122.106325, 47.660898]
#
# GeoJSON definitions
#
# Original version: https://gist.github.com/bubbobne/fe5f2db65acf039be6a9fd92fc9c7233
# Edits by joseph.rios@nasa.gov
#MIT License
#Copyright (c) 2017 Daniele Andreis
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#
#
#The above copyright notice and this permission notice shall be included in all
#copies or substantial portions of the Software.
#
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
#SOFTWARE.
Point:
type: object
description: GeoJSon Point, limited to 2D.
externalDocs:
url: https://tools.ietf.org/html/rfc7946#section-3.1.2
properties:
type:
description: The type of Geometry. In this case, must be 'Point' per GeoJSON spec.
type: string
enum:
- Point
coordinates:
$ref: '#/components/schemas/LonLatPair'
Polygon:
type: object
required:
- type
- coordinates
description: GeoJSon Polygon. Positions all 2D.
externalDocs:
url: https://tools.ietf.org/html/rfc7946#section-3.1.6
properties:
type:
description: |
The type of Geometry. In this case, must be 'Polygon' per GeoJSON
spec. Note that the "coordinates" member is validated to be be an
array of size one. This implies there are no interior rings allowed
currently.
type: string
enum:
- Polygon
coordinates:
type: array
description: >-
The number of polygons allowed. Currently 1, implying no interior
rings. If this number is changes, the maxItems should be considered.
From RFC7946:
o For type "Polygon", the "coordinates" member MUST be an array of
linear ring coordinate arrays.
o For Polygons with more than one of these rings, the first MUST be
the exterior ring, and any others MUST be interior rings. The
exterior ring bounds the surface, and the interior rings (if
present) bound holes within the surface.
Again, note we only allow a single set of coordinates, implying no
interior rings.
minItems: 1
maxItems: 1
items:
type: array
description: >-
The number of vertices in this polygon. From RFC7946:
o A linear ring is a closed LineString with four or more positions.
o The first and last positions are equivalent, and they MUST contain
identical values; their representation SHOULD also be identical.
o A linear ring is the boundary of a surface or the boundary of a
hole in a surface.
o A linear ring MUST follow the right-hand rule with respect to the
area it bounds, i.e., exterior rings are counterclockwise, and
holes are clockwise. (also in the spec: parsers SHOULD NOT reject
Polygons that do not follow the right-hand rule.)
https://tools.ietf.org/html/rfc7946#section-3.1.6
minItems: 4
maxItems: 100
items:
$ref: '#/components/schemas/Point'
Circle:
description: |-
Local extension of the GeoJSON specification to add a circular area defined by a
Point/Radius pair. We extend the Properties object to include a 'radius' value (see
CircleProperties for details).
required:
- type
- geometry
- properties
type: object
properties:
type:
description: The type of Geometry. In this case, must be 'Feature' per GeoJSON spec.
type: string
enum:
- Feature
geometry:
type: object
properties:
type:
description: The type of Geometry. Must be Point.
type: string
enum:
- Point
coordinates:
$ref: '#/components/schemas/Point'
properties:
$ref: '#/components/schemas/CircleProperties'
#
# End of GeoJSON definitions
#
Volume3D:
description: |-
A three-dimensional geographic volume consisting of a vertically-extruded shape.
required:
- area
- altitude_lower
- altitude_upper
type: object
properties:
area:
oneOf:
- $ref: '#/components/schemas/Polygon'
- $ref: '#/components/schemas/Circle'
description: A geographic shape on the surface of the earth.
example:
type: 'Feature'
properties:
radius:
value: 300.0
units: 'M'
geometry:
type: 'Point'
coordinates: [-121.0123, 56.789]
altitude_lower:
description: Minimum bounding altitude of this volume.
allOf:
- $ref: '#/components/schemas/Altitude'
altitude_upper:
description: Maximum bounding altitude of this volume.
allOf:
- $ref: '#/components/schemas/Altitude'
Volume4D:
description: Contiguous block of geographic spacetime.
required:
- volume
type: object
properties:
volume:
$ref: '#/components/schemas/Volume3D'
time_start:
description: Beginning time of this volume.
allOf:
- $ref: '#/components/schemas/Time'
time_end:
description: End time of this volume.
allOf:
- $ref: '#/components/schemas/Time'
ErrorResponse:
description: |-
Human-readable string returned when an error occurs
as a result of a USS - DSS transaction.
type: object
properties:
message:
description: |-
Human-readable message indicating what error occurred and/or why.
type: string
example: 'The error occurred because [...]'
SubscriptionState:
description: |-
State of Subscription which is causing a notification to be sent.
required:
- subscription_id
- notification_index
type: object
properties:
subscription_id:
$ref: '#/components/schemas/SubscriptionUUID'
notification_index:
$ref: '#/components/schemas/SubscriptionNotificationIndex'
SubscriberToNotify:
description: |-
Subscriber to notify of a change in the airspace. This is provided by the DSS
to a client changing the airspace, and it is the responsibility of that client
to send a notification to the specified USS according to the change made to the
airspace.
required:
- subscriptions
- base_url
type: object
properties:
subscriptions:
description: Subscription(s) prompting this notification.
type: array
items:
$ref: '#/components/schemas/SubscriptionState'
minItems: 1
base_url:
$ref: '#/components/schemas/UssBaseURL'
Subscription:
description: |-
Specification of a geographic area that a client is interested
in on an ongoing basis (e.g., "planning area").
required:
- id
- version
- notification_index
- uss_base_url
type: object
properties:
id:
$ref: '#/components/schemas/SubscriptionUUID'
version:
description: |-
Sequential version that the DSS increments every time the Subscription changes. A USS
must specify this version when modifying an existing Subscription to ensure consistency
in read-modify-write operations and distributed systems.
type: integer
format: int32
minimum: 1
exclusiveMinimum: false
notification_index:
$ref: '#/components/schemas/SubscriptionNotificationIndex'
time_start:
description: |-
If set, this subscription will not receive notifications involving airspace changes
entirely before this time.
allOf:
- $ref: '#/components/schemas/Time'
time_end:
description: |-
If set, this subscription will not receive notifications involving airspace changes
entirely after this time.
allOf:
- $ref: '#/components/schemas/Time'
uss_base_url:
$ref: '#/components/schemas/SubscriptionUssBaseURL'
notify_for_operations:
description: If true, trigger notifications when Operations are created, updated, or deleted. Otherwise, changes in Operations should not trigger notifications.
type: boolean
default: false
notify_for_constraints:
description: If true, trigger notifications when Constraints are created, updated, or deleted. Otherwise, changes in Constraints should not trigger notifications.
type: boolean
default: false
created_by_operation:
description: |-
True if this Subscription was implicitly created by the DSS via the creation of an
Operation, and should therefore be deleted by the DSS when that Operation is deleted.
type: boolean
default: false
dependent_operations:
description: List of Operations (UUIDs) that are dependent on this Subscription.
type: array
items:
$ref: '#/components/schemas/EntityUUID'
default: []
SubscriptionNotificationIndex:
format: int32
description: Tracks the notifications sent for a subscription so the subscriber
can detect missed notifications more easily.
type: integer
minimum: 0
exclusiveMinimum: false
default: 0
SearchSubscriptionParameters:
description: |-
Parameters for a request to find Subscriptions matching the provided criteria.
type: object
properties:
area_of_interest:
$ref: '#/components/schemas/Volume4D'
SearchSubscriptionsResponse:
description: Response to DSS query for subscriptions in a particular geographic area.
required:
- subscriptions
type: object
properties:
subscriptions:
description: Subscriptions that overlap the specified geographic area.
type: array
items:
$ref: '#/components/schemas/Subscription'
default: []
GetSubscriptionResponse:
description: Response to DSS request for the subscription with the given id.
required:
- subscription
type: object
properties:
subscription:
$ref: '#/components/schemas/Subscription'
PutSubscriptionParameters:
description: |-
Parameters for a request to create/update a subscription in the DSS.
required:
- extents
- old_version
- uss_base_url
type: object
properties:
extents:
$ref: '#/components/schemas/Volume4D'
old_version:
description: |-
To ensure consistency in read-modify-write operations and distributed systems, the client must
specify the version of this Subscription in the DSS that it is attempting to modify. If a new
Subscription is being created, this version should be set to 0.
type: integer
format: int32
minimum: 0
exclusiveMinimum: false
default: 0
uss_base_url:
$ref: '#/components/schemas/SubscriptionUssBaseURL'
notify_for_operations:
description: If true, trigger notifications when Operations are created, updated, or deleted. Otherwise, changes in Operations should not trigger notifications.
type: boolean
default: false
notify_for_constraints:
description: If true, trigger notifications when Constraints are created, updated, or deleted. Otherwise, changes in Constraints should not trigger notifications.
type: boolean
default: false
SubscriptionUssBaseURL:
description: |-
The base URL of a USS implementation of the parts of the USS-USS API necessary for
receiving the notifications requested by this Subscription.
allOf:
- $ref: '#/components/schemas/UssBaseURL'
PutSubscriptionResponse:
description: |-
Response for a request to create or update a subscription.
required:
- subscription
type: object
properties:
subscription:
$ref: '#/components/schemas/Subscription'
operations:
description: |-
Operations in or near the subscription area at the time of creation/update,
if `notify_for_operations` is true
type: array
items:
$ref: '#/components/schemas/OperationReference'
default: []
constraints:
description: |-
Constraints in or near the subscription area at the time of creation/update,
if `notify_for_constraints` is true
was specified.
type: array
items:
$ref: '#/components/schemas/ConstraintReference'
default: []
DeleteSubscriptionResponse:
description: Response for a successful request to delete an Subscription.
required:
- subscription
type: object
properties:
subscription:
$ref: '#/components/schemas/Subscription'
UssBaseURL:
description: |-
The base URL of a USS implementation of part or all of the USS-USS API. Per the USS-USS API, the full URL
of a particular resource can be constructed by appending, e.g., `/v1/{resource}/{id}` to this base URL.
Accordingly, this URL may not have a trailing '/' character.
type: string
example: 'https://utm_uss.com/utm'
OperationState:
description: |-
State of an Operation.
'Accepted': This Operation was fully deconflicted from other Entities at the time it changed to this
state, but no aircraft associated with it are active yet. The create or update request for this
Operation must include a Key containing all OVNs for all relevant Entities.
'Activated': One or more aircraft associated with this Operation are, or will imminently be, in
flight. The create or update request for this Operation must include a Key containing all OVNs for
all relevant Entities.
'NonConforming': This Operation is outside of the planned volume. The new or updated volumes MUST
contain the actual position of the aircraft. In this state, the `/v1/operations/{entityuuid}/telemetry'
USS-USS endpoint should respond, if available, to queries from USS peers. The create or update request
for this Operation may omit a Key in this case because the Operation is being adjusted as flown and
cannot necessarily deconflict.
'Contingent': This Operation is executing a contingency action, either because it has been
NonConforming for a certain period of time, or because of operator initiation. This state must
transition to Ended. The new or updated volumes MUST contain the actual position of the aircraft.
In this state, the `/v1/operations/{entityuuid}/telemetry' USS-USS endpoint should respond, if available,
to queries from USS peers. The create or update request for this Operation may omit a Key in this
case because the Operation is being adjusted as flown and cannot necessarily deconflict.
'Ended': This Operation has ended (due to either an Operator-induced change or flight completion).
type: string
enum:
- Accepted
- Activated
- NonConforming
- Contingent
- Ended
OperationReference:
description: |-
The high-level information of a planned or active Operation with the URL
of a USS to query for details. Note: 'OVN' is returned ONLY to the USS that
created the Operation but NEVER to other USS instances.
required:
- id
- owner
- version
- time_start
- time_end
- uss_base_url
- subscription_id
type: object
properties:
id:
$ref: '#/components/schemas/EntityUUID'
owner:
type: string
example: 'uss1'
description: |-
Created by the DSS based on creating client's ID (via access token). Used internal
to the DSS for restricting mutation and deletion operations to owner. Used by USSs
to reject Operation update notifications originating from a USS that does not own
the Operation.
version:
description: |-
Sequential version that the DSS increments every time the Operation changes. A USS
may use this version to determine which Operation references have new details that
must be retrieved.
type: integer
format: int32
minimum: 1
exclusiveMinimum: false
ovn:
description: |-
Opaque version number of this Operation. Populated only when the OperationReference
is owned by the USS retrieving or providing it. Not populated when the
OperationReference is not owned by the USS retrieving it (instead, the USS must obtain
the OVN from the details retrieved from the owning USS).
allOf:
- $ref: '#/components/schemas/EntityOVN'
time_start:
description: Beginning time of Operation.
allOf:
- $ref: '#/components/schemas/Time'
time_end:
description: End time of Operation.
allOf:
- $ref: '#/components/schemas/Time'
uss_base_url:
$ref: '#/components/schemas/OperationUssBaseURL'
subscription_id:
description: |-
The ID of the Subscription that is ensuring the Operation owner receives relevant
airspace updates.
allOf:
- $ref: '#/components/schemas/SubscriptionUUID'
OperationUssBaseURL:
description: |-
The base URL of a USS implementation that implements the parts of the USS-USS API necessary for
providing the details of this Operation, and telemetry during non-conformance or contingency,
if applicable.
allOf:
- $ref: '#/components/schemas/UssBaseURL'
PutOperationReferenceParameters:
description: |-
Parameters for a request to create an OperationReference in the DSS.
A subscription to changes overlapping this volume may be implicitly created, but
this can be overridden by providing the (optional) 'subscription_id' to use.
Note: The implicit subscription is managed by the DSS, not the USS.
required:
- extents
- old_version
- state
- uss_base_url
type: object
properties:
extents:
type: array
items:
$ref: '#/components/schemas/Volume4D'
minItems: 1
old_version:
description: |-
To ensure consistency in read-modify-write operations and distributed systems, the client must
specify the version of this Operation in the DSS that it is attempting to modify. If a new
Operation is being created, this version should be set to 0.
type: integer
format: int32
minimum: 0
exclusiveMinimum: false
default: 0
key:
description: |-
Proof that the USS creating or mutating this Operation was aware of the current state of the
airspace, with the expectation that this Operation is therefore deconflicted from all relevant
features in the airspce. This field is not required when declaring an Operation NonConforming
or Contingent, or when there are no relevant Entities in the airspace, but is otherwise required.
allOf:
- $ref: '#/components/schemas/Key'
state:
$ref: '#/components/schemas/OperationState'
uss_base_url:
$ref: '#/components/schemas/OperationUssBaseURL'
subscription_id:
description: |-
The ID of an existing Subscription that the USS will use to keep the operator informed about
updates to relevant airspace information. If this field is not provided, then the
`new_subscription` field must be provided in order to provide notification capability
for the Operation. The Subscription specified by this ID must cover at least the area over
which this Operation is conducted, and it must provide notifications for Operations.
allOf:
- $ref: '#/components/schemas/EntityUUID'
new_subscription:
description: |-
If an existing Subscription is not specified in `subscription_id`, then this field must be
populated.
allOf:
- $ref: '#/components/schemas/ImplicitSubscriptionParameters'
ImplicitSubscriptionParameters:
description: |-
Information necessary to create a Subscription to serve a single Operation's notification needs.
type: object
required:
- base_url
properties:
base_url:
description: |-
The base URL of a USS implementation of the parts of the USS-USS API necessary for
receiving the notifications that the Operation must be aware of. This includes, at least,
notifications for relevant changes in Operations.
allOf:
- $ref: '#/components/schemas/UssBaseURL'
notify_for_constraints:
description: |-
True if this Operation's Subscription should trigger notifications when Constraints change. Otherwise, changes in Constraints should not trigger notifications.
type: boolean
default: false
GetOperationReferenceResponse:
description: |-
Response to DSS request for the OperationReference with the given ID.
required:
- operation_reference
type: object
properties:
operation_reference:
$ref: '#/components/schemas/OperationReference'
ChangeOperationReferenceResponse:
description: |-
Response to a request to create, update, or delete an OperationReference
in the DSS.
required:
- subscribers
- operation_reference
type: object
properties:
subscribers:
description: |-
DSS subscribers that this client now has the obligation to
notify of the Operation changes just made. This client must call POST
for each provided URL according to the USS-USS `/v1/operations/{entityuuid}`
path API. The client's own Subscriptions will also be included in this list.
type: array
items:
$ref: '#/components/schemas/SubscriberToNotify'
default: []
operation_reference:
$ref: '#/components/schemas/OperationReference'
SearchOperationReferenceParameters:
description: |-
Parameters for a request to find OperationReferences matching the provided criteria.
type: object
properties:
area_of_interest:
$ref: '#/components/schemas/Volume4D'
SearchOperationReferenceResponse:
description: Response to DSS query for OperationReferences in an area of interest.
required:
- operation_references
type: object
properties:
operation_references:
description: OperationReferences in the area of interest.
type: array
items:
$ref: '#/components/schemas/OperationReference'
default: []
ConstraintReference:
description: A ConstraintReference (area in which a Constraint is present, along
with other high-level information, but no details). The DSS reports only
these references and clients must exchange details and additional information
peer-to-peer.
required:
- id
- owner
- version
- time_start
- time_end
- uss_base_url
type: object
properties:
id:
$ref: '#/components/schemas/EntityUUID'
owner:
type: string
example: 'uss1'
description: |-
Created by the DSS based on creating client's ID (via access token). Used internal
to the DSS for restricting mutation and deletion operations to owner. Used by USSs
to reject Constraint update notifications originating from a USS that does not own
the Constraint.
version:
description: |-
Sequential version that the DSS increments every time the Constraint changes. A USS
may use this version to determine which Constraint references have new details that
must be retrieved.
type: integer
format: int32
minimum: 1
exclusiveMinimum: false
ovn:
description: |-
Opaque version number of this Constraint. Populated only when the ConstraintReference
is owned by the USS retrieving or providing it. Not populated when the
ConstraintReference is not owned by the USS retrieving it (instead, the USS must obtain
the OVN from the details retrieved from the owning USS).
allOf:
- $ref: '#/components/schemas/EntityOVN'
time_start:
$ref: '#/components/schemas/Time'
time_end:
$ref: '#/components/schemas/Time'
uss_base_url:
$ref: '#/components/schemas/ConstraintUssBaseURL'
ConstraintUssBaseURL:
description: |-
The base URL of a USS implementation that implements the parts of the USS-USS API necessary for
providing the details of this Constraint.
allOf:
- $ref: '#/components/schemas/UssBaseURL'
PutConstraintReferenceParameters:
description: Parameters for a request to create/update a ConstraintReference in the
DSS.
required:
- extents
- old_version
- uss_base_url
type: object
properties:
extents:
type: array
items:
$ref: '#/components/schemas/Volume4D'
minItems: 1
old_version:
description: |-
To ensure consistency in read-modify-write operations and distributed systems, the client must
specify the version of this Constraint in the DSS that it is attempting to modify. If a new
Constraint is being created, this version should be set to 0.
type: integer
format: int32
minimum: 0
exclusiveMinimum: false
default: 0
uss_base_url:
$ref: '#/components/schemas/ConstraintUssBaseURL'
GetConstraintReferenceResponse:
description: Response to DSS request for the ConstraintReference with the given
ID.
required:
- constraint_reference
type: object
properties:
constraint_reference:
$ref: '#/components/schemas/ConstraintReference'
ChangeConstraintReferenceResponse:
description: Response to a request to create, update, or delete a ConstraintReference.
in the DSS.
required:
- subscribers
type: object
properties:
subscribers:
description: DSS subscribers that this client now has the obligation to
notify of the Constraint changes just made. This client must call POST
for each provided URL according to the USS-USS `/v1/constraints/{entityuuid}`
path API. The client's own Subscriptions will also be included in this list.
type: array
items:
$ref: '#/components/schemas/SubscriberToNotify'
default: []
constraint_reference:
$ref: '#/components/schemas/ConstraintReference'
SearchConstraintReferenceParameters:
description: |-
Parameters for a request to find ConstraintReferences matching the provided criteria.
type: object
properties:
area_of_interest:
$ref: '#/components/schemas/Volume4D'
SearchConstraintReferencesResponse:
description: Response to DSS query for ConstraintReferences in an area of interest.
required:
- constraint_references
type: object
properties:
constraint_references:
description: ConstraintReferences in the area of interest.
type: array
items:
$ref: '#/components/schemas/ConstraintReference'
default: []
EntityReference:
description: Reference to a generic Entity known to the DSS.
type: object