openapi: 3.0.1
info:
  title: A1 Policy management service
  description: <h2>General</h2><p>The O-RAN Non-RT RIC Policy Management Service provides
    a REST API for management of A1 policies. <br/>The main tasks of the service are:</p><ul><li>A1
    Policy creation, modification and deletion.</li><li>Monitoring and maintaining
    consistency of the SMO view of A1 policies and the Near-RT RICs</li><li>Maintaining
    a view of supported Near-RT RIC policy types</li><li>Supervision of using services
    (R-APPs). When a service is unavailable, its policies are removed.</li></ul><h2>APIs
    provided by the service</h2><h3>A1 Policy Management</h3><p>This is an API for
    management of A1 Policies.</p><ul><li>A1 Policy retrieval, creation, modification
    and deletion.</li><li>Retrieval of supported A1 Policy types for a Near-RT RIC</li><li>Retrieval
    of status for existing A1 policies</li></ul><h3>Management of configuration</h3><p>API
    for updating and retrieval of the component configuration. Note that there other
    ways to maintain the configuration.</p><h3>Callbacks</h3><p>These are endpoints
    that are invoked by this service. The callbacks are registered in this service
    at service registration.</p><h3>NearRT-RIC Repository</h3><p>This is an API that
    provides support for looking up a NearRT-RIC. Each A1 policy is targeted for one
    Near-RT RIC.</p><h3>Health Check</h3><p>API used for supervision of the PMS component.</p><h3>Service
    Registry and Supervision</h3><p>API used for registering services that uses PMS.
    Each A1 policy is owned by a service. PMS can supervise each registered service
    and will automatically remove policies for unavailable services.</p>
  license:
    name: Copyright (C) 2020-2022 Nordix Foundation. Licensed under the Apache License.
    url: http://www.apache.org/licenses/LICENSE-2.0
  version: 1.1.0
servers:
- url: /
tags:
- name: Service Registry and Supervision
- name: A1 Policy Management
- name: NearRT-RIC Repository
- name: Callbacks
- name: Health Check
- name: Actuator
  description: Monitor and interact
  externalDocs:
    description: Spring Boot Actuator Web API Documentation
    url: https://docs.spring.io/spring-boot/docs/current/actuator-api/html/
- name: Management of configuration
paths:
  /a1-policy/v2/policy-instances:
    get:
      tags:
      - A1 Policy Management
      summary: Query for A1 policy instances
      description: Returns a list of A1 policies matching given search criteria. <br>If
        several query parameters are defined, the policies matching all conditions
        are returned.
      operationId: getPolicyInstances
      parameters:
      - name: policytype_id
        in: query
        description: Select policies with a given type identity.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: ric_id
        in: query
        description: Select policies for a given Near-RT RIC identity.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: service_id
        in: query
        description: Select policies owned by a given service.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: type_name
        in: query
        description: Select policies of a given type name (type identity has the format
          <typename_version>)
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: Policies
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/policy_info_list_v2'
        404:
          description: Near-RT RIC, policy type or service not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/threaddump:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'threaddump'
      operationId: threaddump_2
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/status:
    get:
      tags:
      - Health Check
      summary: Returns status and statistics of this service
      operationId: getStatus
      responses:
        200:
          description: Service is living
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/status_info_v2'
  /actuator/loggers:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'loggers'
      operationId: loggers
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /actuator/health/**:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'health-path'
      operationId: health-path
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/rics/ric:
    get:
      tags:
      - NearRT-RIC Repository
      summary: Returns info for one Near-RT RIC
      description: Either a Near-RT RIC identity or a Managed Element identity can
        be specified.<br>The intention with Managed Element identity is the ID used
        in O1 for accessing the traffical element (such as the ID of CU).
      operationId: getRic
      parameters:
      - name: managed_element_id
        in: query
        description: The identity of a Managed Element. If given, the Near-RT RIC
          managing the ME is returned.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: ric_id
        in: query
        description: The identity of a Near-RT RIC to get information for.
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: Near-RT RIC is found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ric_info_v2'
        404:
          description: Near-RT RIC is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
  /a1-policy/v2/policy-types:
    get:
      tags:
      - A1 Policy Management
      summary: Query policy type identities
      operationId: getPolicyTypes
      parameters:
      - name: ric_id
        in: query
        description: Select types for the given Near-RT RIC identity.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: type_name
        in: query
        description: Select types with the given type name (type identity has the
          format <typename_version>)
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: compatible_with_version
        in: query
        description: Select types that are compatible with the given version. This
          parameter is only applicable in conjunction with type_name. As an example
          version 1.9.1 is compatible with 1.0.0 but not the other way around. Matching
          types will be returned sorted in ascending order.
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: Policy type IDs
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/policytype_id_list_v2'
        404:
          description: Near-RT RIC is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
  /a1-policy/v2/policies/{policy_id}:
    get:
      tags:
      - A1 Policy Management
      summary: Returns a policy
      operationId: getPolicy
      parameters:
      - name: policy_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Policy found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/policy_info_v2'
        404:
          description: Policy is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
    delete:
      tags:
      - A1 Policy Management
      summary: Delete a policy
      operationId: deletePolicy
      parameters:
      - name: policy_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Not used
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/void'
        423:
          description: Near-RT RIC is not operational
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
        204:
          description: Policy deleted
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/void'
        404:
          description: Policy is not found
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/metrics/{requiredMetricName}:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'metrics-requiredMetricName'
      operationId: metrics-requiredMetricName
      parameters:
      - name: requiredMetricName
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/configuration:
    get:
      tags:
      - Management of configuration
      summary: Returns the contents of the application configuration file
      operationId: getConfiguration
      responses:
        200:
          description: Configuration
          content:
            application/json:
              schema:
                type: object
        404:
          description: File is not found or readable
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
    put:
      tags:
      - Management of configuration
      summary: Replace the current configuration file with the given configuration
      operationId: putConfiguration
      requestBody:
        content:
          application/json:
            schema:
              type: object
        required: true
      responses:
        200:
          description: Configuration updated
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/void'
        400:
          description: Invalid configuration provided
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
        500:
          description: Something went wrong when replacing the configuration. Try
            again.
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator:
    get:
      tags:
      - Actuator
      summary: Actuator root web endpoint
      operationId: links
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
                additionalProperties:
                  type: object
                  additionalProperties:
                    $ref: '#/components/schemas/Link'
  /actuator/loggers/{name}:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'loggers-name'
      operationId: loggers-name_2
      parameters:
      - name: name
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
    post:
      tags:
      - Actuator
      summary: Actuator web endpoint 'loggers-name'
      operationId: loggers-name
      parameters:
      - name: name
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/services/{service_id}/keepalive:
    put:
      tags:
      - Service Registry and Supervision
      summary: Heartbeat indicates that the service is running
      description: A registered service must call this in regular intervals to indicate
        that it is in operation. Absence of this call will lead to that the service
        will be deregistered and all its policies are removed.
      operationId: keepAliveService
      parameters:
      - name: service_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Service supervision timer refreshed, OK
          content:
            '*/*':
              schema:
                type: object
        404:
          description: The service is not found, needs re-registration
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/metrics:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'metrics'
      operationId: metrics
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/rics:
    get:
      tags:
      - NearRT-RIC Repository
      summary: Query Near-RT RIC information
      description: The call returns all Near-RT RICs that supports a given policy
        type identity
      operationId: getRics
      parameters:
      - name: policytype_id
        in: query
        description: The identity of a policy type. If given, all Near-RT RICs supporting
          the policy type are returned
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ric_info_list_v2'
        404:
          description: Policy type is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
  /a1-policy/v2/services:
    get:
      tags:
      - Service Registry and Supervision
      summary: Returns service information
      description: Either information about a registered service with given identity
        or all registered services are returned.
      operationId: getServices
      parameters:
      - name: service_id
        in: query
        description: The identity of the service
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/service_list_v2'
        404:
          description: Service is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
    put:
      tags:
      - Service Registry and Supervision
      summary: Register a service
      description: Registering a service is needed to:<ul><li>Get callbacks.</li><li>Activate
        supervision of the service. If a service is inactive, its policies will be
        deleted.</li></ul>
      operationId: putService
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/service_registration_info_v2'
        required: true
      responses:
        200:
          description: Service updated
          content:
            '*/*':
              schema:
                type: object
        201:
          description: Service created
          content:
            '*/*':
              schema:
                type: object
        400:
          description: The ServiceRegistrationInfo is not accepted
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/info:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'info'
      operationId: info
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /status:
    get:
      tags:
      - Health Check
      summary: Returns status and statistics of this service
      operationId: getStatusV1
      responses:
        200:
          description: Service is living
          content:
            '*/*':
              schema:
                type: string
  /a1-policy/v2/policy-types/{policytype_id}:
    get:
      tags:
      - A1 Policy Management
      summary: Returns a policy type definition
      operationId: getPolicyType
      parameters:
      - name: policytype_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Policy type
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/policytype_v2'
        404:
          description: Policy type is not found
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/logfile:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'logfile'
      operationId: logfile
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /actuator/health:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'health'
      operationId: health
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/policies:
    get:
      tags:
      - A1 Policy Management
      summary: Query policy identities
      description: Returns a list of A1 policies matching given search criteria. <br>If
        several query parameters are defined, the policies matching all conditions
        are returned.
      operationId: getPolicyIds
      parameters:
      - name: policytype_id
        in: query
        description: Select policies of a given policy type identity.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: ric_id
        in: query
        description: Select policies of a given Near-RT RIC identity.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: service_id
        in: query
        description: Select policies owned by a given service.
        required: false
        style: form
        explode: true
        schema:
          type: string
      - name: type_name
        in: query
        description: Select policies of types with the given type name (type identity
          has the format <typename_version>)
        required: false
        style: form
        explode: true
        schema:
          type: string
      responses:
        200:
          description: Policy identities
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/policy_id_list_v2'
        404:
          description: Near-RT RIC or type not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
    put:
      tags:
      - A1 Policy Management
      summary: Create or update a policy
      operationId: putPolicy
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/policy_info_v2'
        required: true
      responses:
        200:
          description: Policy updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/void'
        201:
          description: Policy created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/void'
        423:
          description: Near-RT RIC is not operational
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
        404:
          description: Near-RT RIC or policy type is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
  /r-app/near-rt-ric-status:
    post:
      tags:
      - Callbacks
      summary: Callback for Near-RT RIC status
      description: The URL to this call is registered at Service registration.
      operationId: serviceCallback
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/service_callback_info_v2'
        required: true
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/void'
  /a1-policy/v2/services/{service_id}:
    delete:
      tags:
      - Service Registry and Supervision
      summary: Unregister a service
      operationId: deleteService
      parameters:
      - name: service_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Not used
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/void'
        204:
          description: Service unregistered
          content:
            '*/*':
              schema:
                type: object
        404:
          description: Service not found
          content:
            '*/*':
              schema:
                $ref: '#/components/schemas/error_information'
  /actuator/heapdump:
    get:
      tags:
      - Actuator
      summary: Actuator web endpoint 'heapdump'
      operationId: heapdump
      responses:
        200:
          description: OK
          content:
            '*/*':
              schema:
                type: object
  /a1-policy/v2/policies/{policy_id}/status:
    get:
      tags:
      - A1 Policy Management
      summary: Returns a policy status
      operationId: getPolicyStatus
      parameters:
      - name: policy_id
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
      responses:
        200:
          description: Policy status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/policy_status_info_v2'
        404:
          description: Policy is not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_information'
components:
  schemas:
    error_information:
      type: object
      properties:
        detail:
          type: string
          description: ' A human-readable explanation specific to this occurrence
            of the problem.'
          example: Policy type not found
        status:
          type: integer
          description: 'The HTTP status code generated by the origin server for this
            occurrence of the problem. '
          format: int32
          example: 404
      description: Problem as defined in https://tools.ietf.org/html/rfc7807
    void:
      type: object
      description: Void/empty
    status_info_v2:
      type: object
      properties:
        status:
          type: string
          description: status text
    ric_info_v2:
      type: object
      properties:
        ric_id:
          type: string
          description: identity of the Near-RT RIC
        managed_element_ids:
          type: array
          description: O1 identities for managed entities
          items:
            type: string
            description: O1 identities for managed entities
        state:
          type: string
          description: Represents the states for a Near-RT RIC
          enum:
          - UNAVAILABLE
          - AVAILABLE
          - SYNCHRONIZING
          - CONSISTENCY_CHECK
        policytype_ids:
          type: array
          description: supported policy types
          items:
            type: string
            description: supported policy types
      description: Information for a Near-RT RIC
    service_registration_info_v2:
      required:
      - service_id
      type: object
      properties:
        callback_url:
          type: string
          description: callback for notifying of Near-RT RIC state changes
        service_id:
          type: string
          description: identity of the service
        keep_alive_interval_seconds:
          type: integer
          description: keep alive interval for the service. This is a heartbeat supervision
            of the service, which in regular intervals must invoke a 'keepalive' REST
            call. When a service does not invoke this call within the given time,
            it is considered unavailable. An unavailable service will be automatically
            deregistered and its policies will be deleted. Value 0 means no timeout
            supervision.
          format: int64
      description: Information for one service
    policy_info_list_v2:
      type: object
      properties:
        policies:
          type: array
          description: List of policy information
          items:
            $ref: '#/components/schemas/policy_info_v2'
      description: List of policy information
    policy_status_info_v2:
      type: object
      properties:
        last_modified:
          type: string
          description: timestamp, last modification time
        status:
          type: object
          description: the Policy status
      description: Status for one A1-P Policy
    service_status_v2:
      type: object
      properties:
        callback_url:
          type: string
          description: callback for notifying of RIC synchronization
        service_id:
          type: string
          description: identity of the service
        keep_alive_interval_seconds:
          type: integer
          description: policy keep alive timeout
          format: int64
        time_since_last_activity_seconds:
          type: integer
          description: time since last invocation by the service
          format: int64
      description: List of service information
    ric_info_list_v2:
      type: object
      properties:
        rics:
          type: array
          description: List of Near-RT RIC information
          items:
            $ref: '#/components/schemas/ric_info_v2'
      description: List of Near-RT RIC information
    policytype_v2:
      type: object
      properties:
        policy_schema:
          type: object
          description: Policy type json schema. The schema is a json object following
            http://json-schema.org/draft-07/schema
      description: Policy type
    policytype_id_list_v2:
      type: object
      properties:
        policytype_ids:
          type: array
          description: Policy type identities
          items:
            type: string
            description: Policy type identities
      description: Information about policy types
    policy_info_v2:
      required:
      - policy_data
      - policy_id
      - policytype_id
      - ric_id
      - service_id
      type: object
      properties:
        ric_id:
          type: string
          description: identity of the target Near-RT RIC
        policy_id:
          type: string
          description: identity of the policy
        transient:
          type: boolean
          description: if true, the policy is deleted at RIC restart. If false, its
            value is maintained by this service until explicitly deleted. Default
            false.
        service_id:
          type: string
          description: the identity of the service owning the policy
        policy_data:
          type: object
          description: the configuration of the policy
        status_notification_uri:
          type: string
          description: Callback URI for policy status updates
        policytype_id:
          type: string
          description: identity of the policy type
      description: Information for one A1-P Policy
    policy_id_list_v2:
      type: object
      properties:
        policy_ids:
          type: array
          description: Policy identities
          items:
            type: string
            description: Policy identities
      description: A list of policy identities
    service_list_v2:
      type: object
      properties:
        service_list:
          type: array
          description: List of service information
          items:
            $ref: '#/components/schemas/service_status_v2'
      description: List of service information
    service_callback_info_v2:
      required:
      - event_type
      - ric_id
      type: object
      properties:
        ric_id:
          type: string
          description: identity of a Near-RT RIC
        event_type:
          type: string
          description: |-
            values:
            AVAILABLE: the  Near-RT RIC has become available for A1 Policy management
          enum:
          - AVAILABLE
      description: Information transferred as in Service callbacks (callback_url)
    Link:
      type: object
      properties:
        templated:
          type: boolean
        href:
          type: string