Empty route descriptions moved to module to allow for body-less response descriptors.

Author: Wicpar

src/main/kotlin/com/papsign/ktor/openapigen/OpenAPIGen.kt

@@ -11,7 +11,10 @@ import com.papsign.ktor.openapigen.openapi.Server
 import io.ktor.application.*
 import io.ktor.request.path
 import io.ktor.util.AttributeKey
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
 import org.reflections.Reflections
+import javax.xml.bind.JAXBElement
 import kotlin.reflect.KType
 
 class OpenAPIGen(
@@ -26,7 +29,7 @@ class OpenAPIGen(
     val schemaNamer = object : SchemaNamer {
         private val fn = config.schemaNamer
 
-        override fun get(type: KType): String  = fn(type)
+        override fun get(type: KType): String = fn(type)
     }
 
     private val registrars: Array<out PartialSchemaRegistrar> = config.registrars.plus(PrimitiveSchemas(schemaNamer))
@@ -35,7 +38,7 @@ class OpenAPIGen(
     val globalModuleProvider = CachingModuleProvider()
 
     init {
-        val reflections = Reflections(this::class.java.`package`.name)
+        val reflections = Reflections(javaClass.`package`.name)
         val classes = reflections.getTypesAnnotatedWith(APIFormatter::class.java).mapNotNull { it.kotlin.objectInstance }
         classes.forEach {
             when (it) {
@@ -66,13 +69,13 @@ class OpenAPIGen(
         var swaggerUiPath = "swagger-ui"
         var serveSwaggerUi = true
 
-        var schemaNamer: (KType)->String = KType::toString
+        var schemaNamer: (KType) -> String = KType::toString
 
         var registrars: Array<PartialSchemaRegistrar> = arrayOf()
     }
 
 
-    inner class Schemas: SimpleSchemaRegistrar(schemaNamer) {
+    inner class Schemas : SimpleSchemaRegistrar(schemaNamer) {
 
         private val schemas = HashSchemaMap()
         private val names = HashMap<KType, String>()
@@ -90,7 +93,7 @@ class OpenAPIGen(
                 api.components.schemas[name] = schema
                 schema
             }
-            val name= names[type]!!
+            val name = names[type]!!
             return NamedSchema(name, SchemaRef<Any>("#/components/schemas/$name"))
         }
     }

src/main/kotlin/com/papsign/ktor/openapigen/content/type/binary/BinaryContentTypeParser.kt

@@ -2,6 +2,7 @@ package com.papsign.ktor.openapigen.content.type.binary
 
 import com.papsign.kotlin.reflection.getKType
 import com.papsign.kotlin.reflection.getObjectSubtypes
+import com.papsign.kotlin.reflection.unitKType
 import com.papsign.ktor.openapigen.OpenAPIGen
 import com.papsign.ktor.openapigen.annotations.Response
 import com.papsign.ktor.openapigen.annotations.encodings.APIFormatter
@@ -58,6 +59,7 @@ object BinaryContentTypeParser: BodyParser, ResponseSerializer {
     }
 
     override fun <T> getMediaType(type: KType, apiGen: OpenAPIGen, provider: ModuleProvider<*>, example: T?, usage: ContentTypeProvider.Usage): Map<ContentType, MediaType<T>>? {
+        if (type == unitKType) return null
         val contentTypes = when(usage) {
             ContentTypeProvider.Usage.PARSE -> {
                 val binaryRequest = type.jvmErasure.findAnnotation<BinaryRequest>() ?: return null

src/main/kotlin/com/papsign/ktor/openapigen/content/type/ktor/KtorContentProvider.kt

@@ -2,6 +2,7 @@ package com.papsign.ktor.openapigen.content.type.ktor
 
 import com.papsign.kotlin.reflection.allTypes
 import com.papsign.kotlin.reflection.getKType
+import com.papsign.kotlin.reflection.unitKType
 import com.papsign.ktor.openapigen.OpenAPIGen
 import com.papsign.ktor.openapigen.annotations.encodings.APIFormatter
 import com.papsign.ktor.openapigen.annotations.encodings.APIRequestFormat
@@ -64,6 +65,7 @@ object KtorContentProvider : ContentTypeProvider, BodyParser, ResponseSerializer
     }
 
     override fun <T> getMediaType(type: KType, apiGen: OpenAPIGen, provider: ModuleProvider<*>, example: T?, usage: ContentTypeProvider.Usage):Map<ContentType, MediaType<T>>? {
+        if (type == unitKType) return null
         val clazz = type.jvmErasure
         when (usage) { // check if it is explicitly declared or none is present
             ContentTypeProvider.Usage.PARSE -> when {

src/main/kotlin/com/papsign/ktor/openapigen/content/type/multipart/MultipartFormDataContentProvider.kt

@@ -2,6 +2,7 @@ package com.papsign.ktor.openapigen.content.type.multipart
 
 import com.papsign.kotlin.reflection.getKType
 import com.papsign.kotlin.reflection.getObjectSubtypes
+import com.papsign.kotlin.reflection.unitKType
 import com.papsign.ktor.openapigen.OpenAPIGen
 import com.papsign.ktor.openapigen.annotations.encodings.APIFormatter
 import com.papsign.ktor.openapigen.content.type.BodyParser
@@ -125,6 +126,7 @@ object MultipartFormDataContentProvider : BodyParser {
 
 
     override fun <T> getMediaType(type: KType, apiGen: OpenAPIGen, provider: ModuleProvider<*>, example: T?, usage: ContentTypeProvider.Usage): Map<ContentType, MediaType<T>>? {
+        if (type == unitKType) return null
         type.jvmErasure.findAnnotation<FormDataRequest>() ?: return null
         when (usage) {
             ContentTypeProvider.Usage.PARSE -> {

src/main/kotlin/com/papsign/ktor/openapigen/modules/handlers/RequestHandlerModule.kt

@@ -44,7 +44,7 @@ class RequestHandlerModule<T : Any>(
             } else {
                 description = requestMeta?.description
             }
-        } ?: RequestBody(map.toMutableMap(), description = requestMeta?.description)
+        } ?: if (map.isNotEmpty()) RequestBody(map.toMutableMap(), description = requestMeta?.description) else null
     }
 
     companion object {

src/main/kotlin/com/papsign/ktor/openapigen/route/Functions.kt

@@ -70,12 +70,12 @@ inline fun <reified P : Any, reified R : Any, reified B : Any, T: OpenAPIRoute<T
     val path = P::class.findAnnotation<Path>()
     val new = if (path != null) child(ktorRoute.createRouteFromPath(path.path)) else child()
     new.apply {
-        if (Unit !is B) provider.registerModule(
+        provider.registerModule(
             RequestHandlerModule.create(
                 exampleRequest
             )
         )
-        if (Unit !is R) provider.registerModule(
+        provider.registerModule(
             ResponseHandlerModule.create(
                 exampleResponse
             )