protobuf import format (#20946)

bin/configs/protobuf-schema-config.yaml

@@ -7,4 +7,8 @@ additionalProperties:
   addJsonNameAnnotation: true
   numberedFieldNumberList: true
   startEnumsWithUnspecified: true
-  wrapComplexType: false
+  wrapComplexType: false
+typeMappings:
+  object: "google.protobuf.Struct"
+importMappings:
+  google.protobuf.Struct: "google/protobuf/struct"

bin/configs/protobuf-schema.yaml

@@ -4,3 +4,7 @@ inputSpec: modules/openapi-generator/src/test/resources/3_0/protobuf/petstore.ya
 templateDir: modules/openapi-generator/src/main/resources/protobuf-schema
 additionalProperties:
   packageName: petstore
+typeMappings:
+  object: "google.protobuf.Struct"
+importMappings:
+  google.protobuf.Struct: "google/protobuf/struct"

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/ProtobufSchemaCodegen.java

@@ -912,7 +912,11 @@ public class ProtobufSchemaCodegen extends DefaultCodegen implements CodegenConf
 
     @Override
     public String toModelImport(String name) {
-        return underscore(name);
+        if ("".equals(modelPackage())) {
+            return name;
+        } else {
+            return modelPackage() + "/" + underscore(name);
+        }
     }
 
     @Override

modules/openapi-generator/src/main/resources/protobuf-schema/api.mustache

@@ -6,7 +6,7 @@ package {{#lambda.lowercase}}{{{packageName}}}.{{{apiPackage}}}.{{{classname}}};
 import "google/protobuf/empty.proto";
 {{#imports}}
 {{#import}}
-import public "{{{modelPackage}}}/{{{.}}}.proto";
+import public "{{{import}}}.proto";
 {{/import}}
 {{/imports}}
 

modules/openapi-generator/src/main/resources/protobuf-schema/model.mustache

@@ -5,7 +5,7 @@ package {{#lambda.lowercase}}{{{packageName}}};{{/lambda.lowercase}}
 
 {{#imports}}
 {{#import}}
-import public "{{{modelPackage}}}/{{{import}}}.proto";
+import public "{{{.}}}.proto";
 {{/import}}
 {{/imports}}
 

modules/openapi-generator/src/test/resources/3_0/protobuf/petstore.yaml

@@ -669,6 +669,8 @@ components:
         complete:
           type: boolean
           default: false
+        meta:
+          type: object
       xml:
         name: Order
     Category:

samples/config/petstore/protobuf-schema-config/models/order.proto

@@ -12,6 +12,7 @@ syntax = "proto3";
 
 package petstore;
 
+import public "google/protobuf/struct.proto";
 
 message Order {
 
@@ -35,4 +36,6 @@ message Order {
 
   bool complete = 6;
 
+  google.protobuf.Struct meta = 7;
+
 }

samples/config/petstore/protobuf-schema/models/order.proto

@@ -12,6 +12,7 @@ syntax = "proto3";
 
 package petstore;
 
+import public "google/protobuf/struct.proto";
 
 message Order {
 
@@ -34,4 +35,6 @@ message Order {
 
   bool complete = 62574280;
 
+  google.protobuf.Struct meta = 3347973;
+
 }