add json-property-annotation option (openapi-processor/openapi-processor-spring#268)

Author: hauner

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/converter/JsonPropertyAnnotationMode.kt

@@ -16,5 +16,9 @@ enum class JsonPropertyAnnotationMode(private val mode: String) {
      * add @JsonProperty, if the java property name is NOT identical to the OpenAPI property name
      * or set to read/write only.
      */
-    Auto("auto")
+    Auto("auto");
+
+    companion object {
+        fun findBy(mode: String): JsonPropertyAnnotationMode = entries.first { it.mode == mode }
+    }
 }

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/converter/OptionsConverter.kt

@@ -73,6 +73,8 @@ class OptionsConverter(private val checkObsoleteProcessorOptions: Boolean = fals
                     options.formatCode = mapping.options.formatCode
                     options.generatedAnnotation = mapping.options.generatedAnnotation
                     options.generatedDate = mapping.options.generatedDate
+                    options.jsonPropertyAnnotation = JsonPropertyAnnotationMode.findBy(
+                        mapping.options.jsonPropertyAnnotation)
 
                     with(mapping.compatibility) {
                         options.beanValidationValidOnReactive = beanValidationValidOnReactive

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/processor/mapping/v2/Options.kt

@@ -70,5 +70,10 @@ data class Options(
     /**
      * enable/disable the @Generated date (optional)
      */
-    val generatedDate: Boolean = true
+    val generatedDate: Boolean = true,
+
+    /**
+     * generate @JsonProperty annotation always|auto (optional)
+     */
+    val jsonPropertyAnnotation: String = "always"
 )

openapi-processor-core/src/test/kotlin/io/openapiprocessor/core/processor/mapping/v2/MappingReaderSpec.kt

@@ -201,4 +201,21 @@ class MappingReaderSpec: StringSpec ({
         extList[0].type shouldBe "fooA @ custom.Annotation"
         extList[1].type shouldBe "fooB @ custom.Annotation"
     }
+
+    "reads json property annotation" {
+        val yaml = """
+            |openapi-processor-mapping: v8
+            |options:
+            |  package-name: no.warning
+            |  json-property-annotation: auto
+        """.trimMargin()
+
+        val reader = MappingReader()
+
+        // when:
+        val mapping = reader.read (yaml) as Mapping
+
+        // then:
+        mapping.options.jsonPropertyAnnotation shouldBe "auto"
+    }
 })