Added feature to set schema mappings when generation clients. (#846)

* Added feature to set schema mappings when generation clients.

* Updated Restreactive test with schemamapping

* Updated the YearMonth schema to be correct format.

* Updated the documentation

---------

Co-authored-by: Ricardo Zanini <[email protected]>

Author: denvitaharen

client/deployment/src/main/java/io/quarkiverse/openapi/generator/deployment/CodegenConfig.java

@@ -58,6 +58,7 @@ public enum ConfigName {
         ADDITIONAL_API_TYPE_ANNOTATIONS("additional-api-type-annotations"),
         TYPE_MAPPINGS("type-mappings"),
         IMPORT_MAPPINGS("import-mappings"),
+        SCHEMA_MAPPINGS("schema-mappings"),
         NORMALIZER("open-api-normalizer"),
         RETURN_RESPONSE("return-response"),
         ENABLE_SECURITY_GENERATION("enable-security-generation"),

client/deployment/src/main/java/io/quarkiverse/openapi/generator/deployment/CommonItemConfig.java

@@ -36,6 +36,13 @@ public class CommonItemConfig {
     @ConfigItem(name = "import-mappings")
     public Map<String, String> importMappings;
 
+    /**
+     * Schema Mapping is an OpenAPI Generator configuration specifying which Java types (the values) should be
+     * imported when a given schema type (the keys of this map) is used
+     */
+    @ConfigItem(name = "schema-mappings")
+    public Map<String, String> schemaMappings;
+
     /**
      * The specified annotations will be added to the generated model files
      */

client/deployment/src/main/java/io/quarkiverse/openapi/generator/deployment/codegen/OpenApiGeneratorCodeGenBase.java

@@ -296,6 +296,9 @@ protected void generate(OpenApiGeneratorOptions options) {
         getValues(smallRyeConfig, openApiFilePath, CodegenConfig.ConfigName.IMPORT_MAPPINGS, String.class, String.class)
                 .ifPresent(generator::withImportMappings);
 
+        getValues(smallRyeConfig, openApiFilePath, CodegenConfig.ConfigName.SCHEMA_MAPPINGS, String.class, String.class)
+                .ifPresent(generator::withSchemaMappings);
+
         getValues(smallRyeConfig, openApiFilePath, CodegenConfig.ConfigName.NORMALIZER, String.class, String.class)
                 .ifPresent(generator::withOpenApiNormalizer);
 

client/deployment/src/main/java/io/quarkiverse/openapi/generator/deployment/wrapper/OpenApiClientGeneratorWrapper.java

@@ -188,6 +188,11 @@ public OpenApiClientGeneratorWrapper withImportMappings(final Map<String, String
         return this;
     }
 
+    public OpenApiClientGeneratorWrapper withSchemaMappings(final Map<String, String> typeMappings) {
+        typeMappings.forEach(configurator::addSchemaMapping);
+        return this;
+    }
+
     public OpenApiClientGeneratorWrapper withOpenApiNormalizer(final Map<String, String> openApiNormalizer) {
         configurator.setOpenapiNormalizer(openApiNormalizer);
         return this;

client/integration-tests/type-mapping/src/main/openapi/type-mappings-testing.yml

@@ -36,6 +36,23 @@ components:
     UserId:
       type: string
       format: uuid
+    YearMonth:
+      type: object
+      properties:
+        year:
+          format: int32
+          type: integer
+        month:
+          format: int32
+          type: integer
+        prolepticMonth:
+          format: int64
+          type: integer
+        monthValue:
+          format: int32
+          type: integer
+        leapYear:
+          type: boolean
 
     MultipartRequestBody:
       type: object
@@ -46,5 +63,7 @@ components:
           $ref: '#/components/schemas/SomeDateTime'
         binaryStringFile:
           $ref: '#/components/schemas/BinaryStringFile'
+        yearMonth:
+          $ref: '#/components/schemas/YearMonth'
 
 

client/integration-tests/type-mapping/src/main/resources/application.properties

@@ -1,6 +1,7 @@
 quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.type-mappings.UUID=String
 quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.type-mappings.File=InputStream
 quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.import-mappings.File=java.io.InputStream
+quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.schema-mappings.YearMonth=java.time.YearMonth
 quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.base-package=org.acme.openapi.typemapping
 quarkus.openapi-generator.codegen.spec.type_mappings_testing_yml.additional-api-type-annotations=@org.eclipse.microprofile.rest.client.annotation.RegisterProvider(io.quarkiverse.openapi.generator.it.type.mapping.OffsetDateTimeParamConverterProvider.class)
 

client/integration-tests/type-mapping/src/test/java/io/quarkiverse/openapi/generator/it/type/mapping/TypeAndImportMappingRestEasyClassicTest.java

@@ -9,6 +9,7 @@
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.time.OffsetDateTime;
+import java.time.YearMonth;
 import java.time.ZoneOffset;
 
 import jakarta.inject.Inject;
@@ -41,10 +42,12 @@ class TypeAndImportMappingRestEasyClassicTest {
     public void canMapTypesAndImportToDifferentValues() {
         final String testUuid = "00112233-4455-6677-8899-aabbccddeeff";
         final InputStream testFile = new ByteArrayInputStream("Content of the file".getBytes(StandardCharsets.UTF_8));
+        final YearMonth testYearMonth = YearMonth.parse("2024-06");
 
         TypeMappingApi.PostTheDataMultipartForm requestBody = new TypeMappingApi.PostTheDataMultipartForm();
         requestBody.id = testUuid; // String instead of UUID
         requestBody.binaryStringFile = testFile; // InputStream instead of File
+        requestBody.yearMonth = testYearMonth; // YearMonth instead of String
         // dateTime remains OffsetDateTime (as is default)
         requestBody.dateTime = OffsetDateTime.of(2000, 2, 13, 4, 5, 6, 0, ZoneOffset.UTC);
 
@@ -63,6 +66,10 @@ public void canMapTypesAndImportToDifferentValues() {
                         .withName("binaryStringFile")
                         .withHeader("Content-Disposition", containing("filename="))
                         .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.APPLICATION_OCTET_STREAM))
-                        .withBody(equalTo("Content of the file")).build()));
+                        .withBody(equalTo("Content of the file")).build())
+                .withRequestBodyPart(new MultipartValuePatternBuilder()
+                        .withName("yearMonth")
+                        .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.APPLICATION_JSON))
+                        .withBody(equalTo("\"2024-06\"")).build()));
     }
 }

client/integration-tests/type-mapping/src/test/java/io/quarkiverse/openapi/generator/it/type/mapping/TypeAndImportMappingRestEasyReactiveTest.java

@@ -5,6 +5,7 @@
 import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.time.OffsetDateTime;
+import java.time.YearMonth;
 import java.time.ZoneOffset;
 
 import jakarta.inject.Inject;
@@ -37,10 +38,12 @@ public class TypeAndImportMappingRestEasyReactiveTest {
     public void canMapTypesAndImportToDifferentValues() {
         final String testUuid = "00112233-4455-6677-8899-aabbccddeeff";
         final InputStream testFile = new ByteArrayInputStream("Content of the file".getBytes(StandardCharsets.UTF_8));
+        final YearMonth testYearMonth = YearMonth.parse("2024-06");
 
         TypeMappingApi.PostTheDataMultipartForm requestBody = new TypeMappingApi.PostTheDataMultipartForm();
         requestBody.id = testUuid; // String instead of UUID
         requestBody.binaryStringFile = testFile; // InputStream instead of File
+        requestBody.yearMonth = testYearMonth; // YearMonth instead of String
         // dateTime remains OffsetDateTime (as is default)
         requestBody.dateTime = OffsetDateTime.of(2000, 2, 13, 4, 5, 6, 0, ZoneOffset.UTC);
 
@@ -52,6 +55,12 @@ public void canMapTypesAndImportToDifferentValues() {
                         .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.TEXT_PLAIN + "; charset=UTF-8"))
                         .withBody(equalTo(testUuid)).build()));
 
+        typeMappingServer.verify(postRequestedFor(urlEqualTo("/type-mapping"))
+                .withRequestBodyPart(new MultipartValuePatternBuilder()
+                        .withName("yearMonth")
+                        .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.APPLICATION_JSON))
+                        .withBody(equalTo("\"2024-06\"")).build()));
+
         typeMappingServer.verify(postRequestedFor(urlEqualTo("/type-mapping"))
                 .withRequestBodyPart(new MultipartValuePatternBuilder()
                         .withName("dateTime")

docs/modules/ROOT/pages/client.adoc

@@ -115,7 +115,7 @@ See the module `integration-tests/register-provider` for an example of how to us
 
 Use the property key `quarkus.openapi-generator.codegen.validateSpec=false` to disable validating the input specification file before code generation. By default, invalid specifications will result in an error.
 
-== Type and import mappings
+== Type, schema and import mappings
 
 It's possible to remap types in the generated files. For example, instead of a `File` you can configure the code generator to use `InputStream` for all file upload parts of multipart request, or you could change all `UUID` types to `String`. You can configure this in your `application.properties` using the following configuration keys:
 
@@ -129,6 +129,9 @@ It's possible to remap types in the generated files. For example, instead of a `
 |Import Mapping
 |`quarkus.openapi-generator.codegen.spec.[filename].import-mappings.[type]`
 |`quarkus.openapi-generator.codegen.spec.my_spec_yml.import-mappings.File=java.io.InputStream` will replace the default `import java.io.File` with `import java.io.InputStream`
+|Schema Mapping
+|`quarkus.openapi-generator.codegen.spec.[filename].schema-mappings.[type]`
+|`quarkus.openapi-generator.codegen.spec.my_spec_yml.schema-mappings.YearMonth=java.time.YearMonth` will use `java.time.YearMonth` as type for all schemas of the chosen type in the file.
 |===
 
 Note that these configuration properties are maps. For the type-mapping the keys are OAS data types and the values are Java types.
@@ -141,7 +144,7 @@ quarkus.openapi-generator.codegen.spec.my_spec_yml.type-mappings.DateTime=Instan
 quarkus.openapi-generator.codegen.spec.my_spec_yml.import-mappings.Instant=java.time.Instant
 ----
 
-It's also possible to only use a type mapping with a fully qualified name, for instance `quarkus.openapi-generator.codegen.spec.my_spec_yml.type-mappings.File=java.io.InputStream`. For more information and a list of all types see the OpenAPI generator documentation on https://openapi-generator.tech/docs/usage/#type-mappings-and-import-mappings[Type Mappings and Import Mappings].
+It's also possible to only use a type mapping with a fully qualified name, for instance `quarkus.openapi-generator.codegen.spec.my_spec_yml.type-mappings.File=java.io.InputStream`. For more information and a list of all types see the OpenAPI generator documentation on https://openapi-generator.tech/docs/usage/#type-mappings-and-import-mappings[Type Mappings and Import Mappings] and https://openapi-generator.tech/docs/customization#schema-mapping[Schema mapping].
 
 See the module https://github.com/quarkiverse/quarkus-openapi-generator/tree/main/integration-tests/type-mapping[type-mapping] for an example of how to use this feature.