.gitignore

+protoc/
+go-stubs/
+ruby-stubs/
+.proto-gen/
+python-stubs/
+.vscode/
\ No newline at end of file

MEC030_V2XInformationServices.yaml

@@ -1854,16 +1854,10 @@ components:
       properties:
         msgProtocol:
           description: 'Numerical value corresponding to the application layer protocol supported by the service consumer. For the msgProtocol, the following values are currently defined (see note):
-
-
             0 = MQTT v3.1.0
-
             1 = MQTT v3.1.1
-
             2 = MQTT v5
-
             3 = MQTT-SN
-
             4 = AMQP 1.0'
           items:
             enum:

proto3-gen.md

+# Protobuf Schema Generation
+
+[OpenAPI Generator](https://openapi-generator.tech) is used to generate protobuf schema (`.proto3`) files from OpenAPI specifications of MEC030 V2X Information Services API.
+
+>**NOTE:** At the time of writing, the tool does not support OAS 3.1 version and we have to first convert the [V2X Information Service API](./MEC030_V2XInformationServices.yaml) to OAS 3.0 for generating protobuf schema.
+
+1. Convert OAS for [V2X Information Service API](./MEC030_V2XInformationServices.yaml) from 3.1 to 3.0​
+
+   - Change the value of `openapi` field from 3.1.0 to 3.0.0​
+
+   - Use this [VS code extension](https://marketplace.visualstudio.com/items?itemName=42Crunch.vscode-openapi) to see the errors in the downgraded YAML (v3.0)​
+
+   - Manually fix the errors​
+     - mostly related to `examples` <--> `example` interchange​
+     - or some 3.1 fields that are not supported in 3.0​ (comment them out)
+
+2. Generate proto files
+   - Install the `openapi-generator-cli.jar` using the installation procedure mentioned [here](https://openapi-generator.tech/docs/installation#jar).
+   - Generate the proto files using the following command 
+        ```sh
+        $ java -jar openapi-generator-cli.jar generate -i MEC030_V2XInformationServices.yaml -g protobuf-schema -o proto3/ --package-name mec030
+        ```
+
+3. Carefully inspect the generated `.proto` files for any inconsistencies. Some of the things to look out for:
+    - Proto3 generated files for enumerations, structures containing allOf, oneOf, anyOf etc. may need to be touched manually
+    - Check that all the nested models are being _imported_ correctly in their parent models
+    - Remove redundant proto files
+
+
+4. Validate protobuf schema by generating code from proto3 descriptions in different languages. See [this section](#code-generation-from-proto3) for more details.
+
+# Code Generation from proto3
+
+Below are some code generation examples for Python, Go and Ruby. For other languages, please refer to https://grpc.io/docs/quickstart/.
+
+### Python
+
+1. Install the grpcio-tools package
+    ```sh
+    $ pip install grpcio-tools
+    ```
+
+2. Create a directory for generated Python stubs
+    ```sh
+    $ mkdir python-stubs
+    ```
+
+3. Run the following commands from the root of the directory containing this README that you are reading.
+
+   - Models:
+  
+        ```sh
+        $ python -m grpc_tools.protoc -I./proto3 --python_out=./python-stubs ./proto3/models/*
+        ```
+
+        The above command will generate .py files for all the data models in the ./models directory
+
+   - Services:
+
+        ```sh
+        $ python -m grpc_tools.protoc -I./proto3 --python_out=./python-stubs --grpc_python_out=./python-stubs ./proto3/services/<*_service>.proto
+        ```
+
+        The above command will generate two files for the V2X Information Services:
+        - <*_servic_pb2>.py_: containing the python data models used in the service file
+        - <*_service_pb2_grpc>.py_: containing all the classes and functions needed for the supported HTTP methods in the service file
+
+### Go
+
+1. Install protocol buffer compiler
+    ```sh
+    $ apt install -y protobuf-compiler
+    ```
+2. Install Go plugins for `protoc`
+    ```sh
+    $ go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
+    ```
+    ```sh
+    $ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2.0
+    ```
+3. Update `PATH` so `protoc` can find the plugins
+    ```sh
+    $ export PATH="$PATH:$(go env GOPATH)/bin"
+    ```
+4. Define a go package by appending `option go_package = "./mec030.services.v2xinformationservices";` in all .proto files like this:
+
+    ```Go
+    ...
+
+    syntax = "proto3";
+
+    package mec030.services.v2xinformationservices;
+
+    option go_package = "./mec030.services.v2xinformationservices";
+
+    import public "models/<xyz>.proto";
+
+    ...
+    ```
+5. Generate Go code for models and services
+    ```sh 
+    $ mkdir go-stubs
+    $ protoc --go_out=./go-stubs ./proto3/models/* -I./proto3
+    $ protoc --go_out=./go-stubs ./proto3/services/* --go-grpc_out=go-stubs -I./proto3
+    ```
+    > The generated `<data_model>.pb.go` files will contain all the protocol buffer code to populate, serialize, and retrieve request and response message types defined in the `models` folder.
+    > And the `<*_service_grpc>.pb.go` will contain the stubs for the methods defined in the `<*_service>.proto` file.
+
+### Ruby
+
+1. Install gRPC Ruby Plugin and required tools
+   ```sh
+   $ gem install grpc
+   $ sudo apt install ruby-grpc-tools
+   ```
+
+2. Generate code
+    ```sh
+    $ mkdir ruby-stubs
+    ```
+    
+    Run the following command to create Ruby modules for all the data models defined in the proto files.
+
+    ```sh
+    $ grpc_tools_ruby_protoc -I./proto3 --ruby_out=ruby-stubs ./proto3/models/*
+    ```
+    Run the following command to generate `<*_service_pb>.rb` and `<*_service_services_pb>.rb` files, containing stub and service classes for the endpoints and methods defined in MEC030 V2X Information Services.
+
+    ```sh
+    $ grpc_tools_ruby_protoc -I./proto3 --ruby_out=ruby-stubs --grpc_out=ruby-stubs ./proto3/services/*
+    ```

proto3/.openapi-generator-ignore

+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

proto3/.openapi-generator/FILES

+.openapi-generator-ignore
+README.md
+models/cell_id.proto
+models/earfcn.proto
+models/ecgi.proto
+models/fdd_info.proto
+models/info_connection.proto
+models/info_protocol.proto
+models/link_type.proto
+models/links.proto
+models/links1.proto
+models/links2.proto
+models/links3.proto
+models/location_info.proto
+models/location_info_geo_area.proto
+models/msg_type.proto
+models/pc5_neighbour_cell_info.proto
+models/pc5_provisioning_info.proto
+models/pc5_provisioning_info_pro_info_pc5.proto
+models/plmn.proto
+models/pred_qos_subscription.proto
+models/predicted_qos.proto
+models/predicted_qos_routes.proto
+models/predicted_qos_routes_route_info.proto
+models/prediction_area.proto
+models/problem_details.proto
+models/prov_chg_pc5_notification.proto
+models/prov_chg_pc5_subscription.proto
+models/prov_chg_pc5_subscription_filter_criteria.proto
+models/prov_chg_uu_mbms_notification.proto
+models/prov_chg_uu_mbms_subscription.proto
+models/prov_chg_uu_mbms_subscription_filter_criteria.proto
+models/prov_chg_uu_uni_notification.proto
+models/prov_chg_uu_uni_subscription.proto
+models/prov_chg_uu_uni_subscription_filter_criteria.proto
+models/qos.proto
+models/qos_kpi.proto
+models/qos_pred_filter_criteria.proto
+models/route_info.proto
+models/routes.proto
+models/stream.proto
+models/subscription_link_list.proto
+models/subscriptions.proto
+models/tdd_info.proto
+models/test_notification.proto
+models/test_notification_links.proto
+models/time_stamp.proto
+models/transmission_bandwidth.proto
+models/transmission_bandwidth_transmission_bandwidth.proto
+models/uu_mbms_neighbour_cell_info.proto
+models/uu_mbms_provisioning_info.proto
+models/uu_mbms_provisioning_info_pro_info_uu_mbms.proto
+models/uu_uni_neighbour_cell_info.proto
+models/uu_unicast_provisioning_info.proto
+models/uu_unicast_provisioning_info_pro_info_uu_unicast.proto
+models/v2x_application_server.proto
+models/v2x_msg_distribution_server.proto
+models/v2x_msg_distribution_server_info.proto
+models/v2x_msg_filter_criteria.proto
+models/v2x_msg_notification.proto
+models/v2x_msg_notification_links.proto
+models/v2x_msg_properties_values.proto
+models/v2x_msg_publication.proto
+models/v2x_msg_subscription.proto
+models/v2x_msg_subscription_filter_criteria.proto
+models/v2x_server_usd.proto
+models/v2x_server_usd_sdp_info.proto
+models/v2x_server_usd_tmgi.proto
+models/websock_notif_config.proto
+services/qo_s_service.proto
+services/queries_service.proto
+services/subscription_service.proto
+services/v2_x_msg_service.proto

proto3/.openapi-generator/VERSION

+5.4.0
\ No newline at end of file

proto3/README.md

+# gPRC for mec030
+
+ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+## Overview
+These files were generated by the [OpenAPI Generator](https://openapi-generator.tech) project.
+
+- API version: 3.1.1
+- Package version: 
+- Build package: org.openapitools.codegen.languages.ProtobufSchemaCodegen
+For more information, please visit [https://forge.etsi.org/rep/mec/gs030-vis-api](https://forge.etsi.org/rep/mec/gs030-vis-api)
+
+## Usage
+
+Below are some usage examples for Python, Go and Ruby. For other languages, please refer to https://grpc.io/docs/quickstart/.
+
+### Python
+
+1. Install the grpcio-tools package
+    ```sh
+    $ pip install grpcio-tools
+    ```
+
+2. Create a directory for generated Python stubs
+    ```sh
+    $ mkdir python-stubs
+    ```
+
+3. Run the following commands from the root of the directory containing this README that you are reading.
+
+   - Models:
+  
+        ```sh
+        $ python -m grpc_tools.protoc -I./proto3 --python_out=./python-stubs ./proto3/models/*
+        ```
+
+        The above command will generate .py files for all the data models in the ./models directory
+
+   - Services:
+
+        ```sh
+        $ python -m grpc_tools.protoc -I./proto3 --python_out=./python-stubs --grpc_python_out=./python-stubs ./proto3/services/<*_service>.proto
+        ```
+
+        The above command will generate two files for the V2X Information Services:
+        - <*_servic_pb2>.py_: containing the python data models used in the service file
+        - <*_service_pb2_grpc>.py_: containing all the classes and functions needed for the supported HTTP methods in the service file
+
+### Go
+
+1. Install protocol buffer compiler
+    ```sh
+    $ apt install -y protobuf-compiler
+    ```
+2. Install Go plugins for `protoc`
+    ```sh
+    $ go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
+    ```
+    ```sh
+    $ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2.0
+    ```
+3. Update `PATH` so `protoc` can find the plugins
+    ```sh
+    $ export PATH="$PATH:$(go env GOPATH)/bin"
+    ```
+4. Define a go package by appending `option go_package = "./mec030.services.v2xinformationservices";` in all .proto files like this:
+
+    ```Go
+    ...
+
+    syntax = "proto3";
+
+    package mec030.services.v2xinformationservices;
+
+    option go_package = "./mec030.services.v2xinformationservices";
+
+    import public "models/<xyz>.proto";
+
+    ...
+    ```
+5. Generate Go code for models and services
+    ```sh 
+    $ mkdir go-stubs
+    $ protoc --go_out=./go-stubs ./proto3/models/* -I./proto3
+    $ protoc --go_out=./go-stubs ./proto3/services/* --go-grpc_out=go-stubs -I./proto3
+    ```
+    > The generated `<data_model>.pb.go` files will contain all the protocol buffer code to populate, serialize, and retrieve request and response message types defined in the `models` folder.
+    > And the `<*_service_grpc>.pb.go` will contain the stubs for the methods defined in the `<*_service>.proto` file.
+
+### Ruby
+
+1. Install gRPC Ruby Plugin and required tools
+   ```sh
+   $ gem install grpc
+   $ sudo apt install ruby-grpc-tools
+   ```
+
+2. Generate code
+    ```sh
+    $ mkdir ruby-stubs
+    ```
+    
+    Run the following command to create Ruby modules for all the data models defined in the proto files.
+
+    ```sh
+    $ grpc_tools_ruby_protoc -I./proto3 --ruby_out=ruby-stubs ./proto3/models/*
+    ```
+    Run the following command to generate `<*_service_pb>.rb` and `<*_service_services_pb>.rb` files, containing stub and service classes for the endpoints and methods defined in MEC030 V2X Information Services.
+
+    ```sh
+    $ grpc_tools_ruby_protoc -I./proto3 --ruby_out=ruby-stubs --grpc_out=ruby-stubs ./proto3/services/*
+    ```
+
+```
\ No newline at end of file

proto3/models/cell_id.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -16,6 +18,6 @@ package mec030;
 message CellId {
 
   // E-UTRAN Cell Identity as a bit string (size (28)).
-  string cell_id = 1;
+  string cellId = 1;
 
 }

proto3/models/earfcn.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -16,6 +18,6 @@ package mec030;
 message Earfcn {
 
   // E-UTRA Absolute Radio Frequency Channel Number, range (0... 65535)
-  int32 earfcn = 1;
+  int32 earfcn = 2;
 
 }

proto3/models/ecgi.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -17,7 +19,7 @@ import public "models/plmn.proto";
 
 message Ecgi {
 
-  CellId cell_id = 1;
+  CellId cellId = 1;
 
   Plmn plmn = 2;
 

proto3/models/fdd_info.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -17,12 +19,12 @@ import public "models/transmission_bandwidth.proto";
 
 message FddInfo {
 
-  Earfcn dl_earfcn = 1;
+  Earfcn dlEarfcn = 1;
 
-  TransmissionBandwidth dl_transmission_bandwidth = 2;
+  TransmissionBandwidth dlTransmissionBandwidth = 2;
 
-  Earfcn ul_earfcn = 3;
+  Earfcn ulEarfcn = 3;
 
-  TransmissionBandwidth ul_transmission_bandwidth = 4;
+  TransmissionBandwidth ulTransmissionBandwidth = 4;
 
 }

proto3/models/info_connection.proto

+/*
+  ETSI GS MEC 030 V2X Information Services API
+
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
+
+  Contact: cti_support@etsi.org
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package mec030;
+
+
+message InfoConnection {
+
+  // IP address of the V2X Message Distribution Server.
+  string ipAddress = 1;
+
+  // Port number of the V2X Message Distribution Server.
+  int32 port_number = 2;
+
+}

proto3/models/info_protocol.proto

+/*
+  ETSI GS MEC 030 V2X Information Services API
+
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
+
+  Contact: cti_support@etsi.org
+
+  Generated by OpenAPI Generator: https://openapi-generator.tech
+*/
+
+syntax = "proto3";
+
+package mec030;
+
+
+message InfoProtocol {
+
+  // Numerical value corresponding to the application layer protocol supported by the service consumer. For the msgProtocol, the following values are currently defined (see note):  0 = MQTT v3.1.0 1 = MQTT v3.1.1 2 = MQTT v5 3 = MQTT-SN 4 = AMQP 1.0
+  enum MsgProtocolEnum {
+    _0 = 0;
+    _1 = 1;
+    _2 = 2;
+    _3 = 3;
+    _4 = 4;
+  }
+
+  MsgProtocolEnum msgProtocol = 1;
+
+  // Implementation specifics of application layer protocol, e.g. programming language.
+  string protImplementation = 2;
+
+}

proto3/models/link_type.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -15,7 +17,7 @@ package mec030;
 
 message LinkType {
 
-  // The URI referring to the subscription.
+  // URI referring to a resource
   string href = 1;
 
 }

proto3/models/prov_chg_pc5_subscription_links.proto → proto3/models/links.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -14,7 +16,7 @@ package mec030;
 
 import public "models/link_type.proto";
 
-message ProvChgPc5SubscriptionLinks {
+message Links {
 
   LinkType self = 1;
 

proto3/models/prov_chg_uu_uni_subscription_links.proto → proto3/models/links1.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -14,7 +16,7 @@ package mec030;
 
 import public "models/link_type.proto";
 
-message ProvChgUuUniSubscriptionLinks {
+message Links1 {
 
   LinkType self = 1;
 

proto3/models/v2x_msg_subscription_links.proto → proto3/models/links2.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -13,11 +15,12 @@ syntax = "proto3";
 package mec030;
 
 import public "models/link_type.proto";
+import public "models/subscriptions.proto";
 
-option java_outer_classname = "V2xMsgSubscriptionLinksProto";
-
-message V2xMsgSubscriptionLinks {
+message Links2 {
 
   LinkType self = 1;
 
+  repeated Subscriptions subscriptions = 2;
+
 }

proto3/models/prov_chg_uu_mbms_subscription_links.proto → proto3/models/links3.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -14,8 +16,8 @@ package mec030;
 
 import public "models/link_type.proto";
 
-message ProvChgUuMbmsSubscriptionLinks {
+message Links3 {
 
-  LinkType self = 1;
+  LinkType subscription = 1;
 
 }

proto3/models/location_info.proto

 /*
-  ETSI GS MEC 030 V2X Information Service API
+  ETSI GS MEC 030 V2X Information Services API
 
-  ETSI GS MEC 030 V2X Information Service API described using OpenAPI.
+  ETSI GS MEC 030 V2X Information Services API described using OpenAPI.
+
+  The version of the OpenAPI document: 3.1.1
 
-  The version of the OpenAPI document: 2.1.1
   Contact: cti_support@etsi.org
+
   Generated by OpenAPI Generator: https://openapi-generator.tech
 */
 
@@ -19,6 +21,6 @@ message LocationInfo {
 
   Ecgi ecgi = 1;
 
-  LocationInfoGeoArea geo_area = 2;
+  LocationInfoGeoArea geoArea = 2;
 
 }