OpenAPITools · 4brunu · Jul 26, 2024 · Jul 26, 2024 · Jul 26, 2024
diff --git a/bin/configs/kotlin-spring-boot-integer-enum.yaml b/bin/configs/kotlin-spring-boot-integer-enum.yaml
@@ -0,0 +1,13 @@
+generatorName: kotlin-spring
+outputDir: samples/server/petstore/kotlin-springboot-integer-enum
+library: spring-boot
+inputSpec: modules/openapi-generator/src/test/resources/3_0/kotlin/issue19244_integer_enum.yaml
+templateDir: modules/openapi-generator/src/main/resources/kotlin-spring
+additionalProperties:
+  interfaceOnly: "true"
+  skipDefaultInterface: "true"
+  useTags: "true"
+  useSpringBoot3: "true"
+  annotationLibrary: none
+  documentationProvider: none
+  enumPropertyNaming: UPPERCASE
diff --git a/...generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java b/...generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java
@@ -815,6 +815,7 @@ public void postProcessModelProperty(CodegenModel model, CodegenProperty propert
             model.imports.add("JsonProperty");
             if (Boolean.TRUE.equals(model.hasEnums)) {
                 model.imports.add("JsonValue");
+                model.imports.add("JsonCreator");
             }
         } else {
             //Needed imports for Jackson's JsonCreator
@@ -840,10 +841,14 @@ public ModelsMap postProcessModelsEnum(ModelsMap objs) {
                 .filter(cm -> Boolean.TRUE.equals(cm.isEnum) && cm.allowableValues != null)
                 .forEach(cm -> {
                     cm.imports.add(importMapping.get("JsonValue"));
+                    cm.imports.add(importMapping.get("JsonCreator"));
                     cm.imports.add(importMapping.get("JsonProperty"));
                     Map<String, String> itemJsonValue = new HashMap<>();
                     itemJsonValue.put("import", importMapping.get("JsonValue"));
                     imports.add(itemJsonValue);
+                    Map<String, String> itemJsonCreator = new HashMap<>();
+                    itemJsonCreator.put("import", importMapping.get("JsonCreator"));
+                    imports.add(itemJsonCreator);
                     Map<String, String> itemJsonProperty = new HashMap<>();
                     itemJsonProperty.put("import", importMapping.get("JsonProperty"));
                     imports.add(itemJsonProperty);

diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/dataClass.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/dataClass.mustache
@@ -31,9 +31,17 @@
     * {{{description}}}
     * Values: {{#allowableValues}}{{#enumVars}}{{&name}}{{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
     */
-    enum class {{{nameInPascalCase}}}(val value: {{#isContainer}}{{#items}}{{{dataType}}}{{/items}}{{/isContainer}}{{^isContainer}}{{{dataType}}}{{/isContainer}}) {
+    enum class {{{nameInPascalCase}}}(@get:JsonValue val value: {{#isContainer}}{{#items}}{{{dataType}}}{{/items}}{{/isContainer}}{{^isContainer}}{{{dataType}}}{{/isContainer}}) {
 {{#allowableValues}}{{#enumVars}}
-        @JsonProperty({{{value}}}) {{{name}}}({{{value}}}){{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
+        {{{name}}}({{{value}}}){{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}};
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: {{#isContainer}}{{#items}}{{{dataType}}}{{/items}}{{/isContainer}}{{^isContainer}}{{{dataType}}}{{/isContainer}}): {{{nameInPascalCase}}} {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 {{/isEnum}}{{/vars}}{{/hasEnums}}
 {{#serializableModel}}

diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/enumClass.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/enumClass.mustache
@@ -2,7 +2,15 @@
 * {{{description}}}
 * Values: {{#allowableValues}}{{#enumVars}}{{&name}}{{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
 */
-enum class {{classname}}(val value: {{dataType}}) {
+enum class {{classname}}(@get:JsonValue val value: {{dataType}}) {
 {{#allowableValues}}{{#enumVars}}
-    @JsonProperty({{{value}}}) {{&name}}({{{value}}}){{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}}
+    {{&name}}({{{value}}}){{^-last}},{{/-last}}{{/enumVars}}{{/allowableValues}};
+
+    companion object {
+        @JvmStatic
+        @JsonCreator
+        fun forValue(value: {{dataType}}): {{classname}} {
+                return values().first{it -> it.value == value}
+        }
+    }
 }
diff --git a/modules/openapi-generator/src/test/resources/3_0/kotlin/issue19244_integer_enum.yaml b/modules/openapi-generator/src/test/resources/3_0/kotlin/issue19244_integer_enum.yaml
@@ -0,0 +1,46 @@
+openapi: 3.0.3
+info:
+  description: >-
+    Example created
+  version: 1.0.0
+  title: OpenAPI Stuff API created to reproduce issue
+  license:
+    name: Apache-2.0
+    url: 'https://www.apache.org/licenses/LICENSE-2.0.html'
+paths:
+  /healthcheck:
+    get:
+      summary: Health check endpoint.
+      operationId: healthcheck
+      responses:
+        204:
+          description: Successful health check
+        default:
+          description: Unexpected error
+          content:
+            'application/json':
+              schema:
+                $ref: '#/components/schemas/ApiError'
+
+components:
+  schemas:
+    ApiError:
+      required:
+        - errorCode
+      type: object
+      properties:
+        errorCode:
+          type: integer
+          enum:
+            - 0
+            - 100
+          x-enum-varnames:
+            - OK
+            - ERROR
+        reasonCode:
+          $ref: '#/components/schemas/ReasonCode'
+    ReasonCode:
+      type: integer
+      enum:
+        - 10
+        - 20
diff --git a/samples/server/petstore/kotlin-spring-cloud/src/main/kotlin/org/openapitools/model/Order.kt b/samples/server/petstore/kotlin-spring-cloud/src/main/kotlin/org/openapitools/model/Order.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import java.io.Serializable
@@ -42,11 +43,19 @@ data class Order(
     * Order Status
     * Values: placed,approved,delivered
     */
-    enum class Status(val value: kotlin.String) {
+    enum class Status(@get:JsonValue val value: kotlin.String) {
 
-        @JsonProperty("placed") placed("placed"),
-        @JsonProperty("approved") approved("approved"),
-        @JsonProperty("delivered") delivered("delivered")
+        placed("placed"),
+        approved("approved"),
+        delivered("delivered");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
     companion object {

diff --git a/samples/server/petstore/kotlin-spring-cloud/src/main/kotlin/org/openapitools/model/Pet.kt b/samples/server/petstore/kotlin-spring-cloud/src/main/kotlin/org/openapitools/model/Pet.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -47,11 +48,19 @@ data class Pet(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
+    enum class Status(@get:JsonValue val value: kotlin.String) {
 
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
     companion object {

diff --git a/...r/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/AnyOfUserOrPet.kt b/...r/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/AnyOfUserOrPet.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -83,11 +84,19 @@ data class AnyOfUserOrPet(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
-
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+    enum class Status(@get:JsonValue val value: kotlin.String) {
+
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }

diff --git a/...tlin-spring-default/src/main/kotlin/org/openapitools/model/AnyOfUserOrPetOrArrayString.kt b/...tlin-spring-default/src/main/kotlin/org/openapitools/model/AnyOfUserOrPetOrArrayString.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -83,11 +84,19 @@ data class AnyOfUserOrPetOrArrayString(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
-
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+    enum class Status(@get:JsonValue val value: kotlin.String) {
+
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }

diff --git a/...les/server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/Order.kt b/...les/server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/Order.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import javax.validation.constraints.DecimalMax
@@ -48,11 +49,19 @@ data class Order(
     * Order Status
     * Values: placed,approved,delivered
     */
-    enum class Status(val value: kotlin.String) {
+    enum class Status(@get:JsonValue val value: kotlin.String) {
 
-        @JsonProperty("placed") placed("placed"),
-        @JsonProperty("approved") approved("approved"),
-        @JsonProperty("delivered") delivered("delivered")
+        placed("placed"),
+        approved("approved"),
+        delivered("delivered");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }

diff --git a/samples/server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/Pet.kt b/samples/server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/Pet.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -53,11 +54,19 @@ data class Pet(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
+    enum class Status(@get:JsonValue val value: kotlin.String) {
 
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }

diff --git a/...server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/UserOrPet.kt b/...server/petstore/kotlin-spring-default/src/main/kotlin/org/openapitools/model/UserOrPet.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -83,11 +84,19 @@ data class UserOrPet(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
-
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+    enum class Status(@get:JsonValue val value: kotlin.String) {
+
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }

diff --git a/...re/kotlin-spring-default/src/main/kotlin/org/openapitools/model/UserOrPetOrArrayString.kt b/...re/kotlin-spring-default/src/main/kotlin/org/openapitools/model/UserOrPetOrArrayString.kt
@@ -1,6 +1,7 @@
 package org.openapitools.model
 
 import java.util.Objects
+import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.annotation.JsonValue
 import org.openapitools.model.Category
@@ -83,11 +84,19 @@ data class UserOrPetOrArrayString(
     * pet status in the store
     * Values: available,pending,sold
     */
-    enum class Status(val value: kotlin.String) {
-
-        @JsonProperty("available") available("available"),
-        @JsonProperty("pending") pending("pending"),
-        @JsonProperty("sold") sold("sold")
+    enum class Status(@get:JsonValue val value: kotlin.String) {
+
+        available("available"),
+        pending("pending"),
+        sold("sold");
+
+        companion object {
+            @JvmStatic
+            @JsonCreator
+            fun forValue(value: kotlin.String): Status {
+                return values().first{it -> it.value == value}
+            }
+        }
     }
 
 }