#2, support requestBody $ref (swagger)

Author: hauner

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/parser/swagger/OpenApi.kt

@@ -23,7 +23,7 @@ class OpenApi(private val result: SwaggerParseResult): ParserOpenApi {
         val paths = linkedMapOf<String, ParserPath>()
 
         result.openAPI.paths.forEach { (name: String, value: SwaggerPath) ->
-            paths[name] = Path(name, value)
+            paths[name] = Path(name, value, RefResolverNative(result.openAPI))
         }
 
         return paths

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/parser/swagger/Operation.kt

@@ -21,7 +21,8 @@ import io.swagger.v3.oas.models.responses.ApiResponse as SwaggerResponse
 class Operation(
     private val method: HttpMethod,
     private val operation: SwaggerOperation,
-    private val path: SwaggerPath
+    private val path: SwaggerPath,
+    private val refResolver: RefResolverNative
 ): ParserOperation {
 
     override fun getMethod(): HttpMethod = method
@@ -47,11 +48,15 @@ class Operation(
     }
 
     override fun getRequestBody(): ParserRequestBody? {
-        if (operation.requestBody == null) {
+        var requestBody = operation.requestBody
+        if (requestBody == null) {
             return null
+
+        } else if (requestBody.`$ref` != null) {
+            requestBody = refResolver.resolve(requestBody)
         }
 
-        return RequestBody (operation.requestBody)
+        return RequestBody (requestBody)
     }
 
     override fun getResponses(): Map<String, ParserResponse> {

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/parser/swagger/Path.kt

@@ -14,7 +14,11 @@ import io.swagger.v3.oas.models.Operation as SwaggerOperation
 /**
  * Swagger Path abstraction.
  */
-class Path(private val path: String, private val info: SwaggerPath): ParserPath {
+class Path(
+    private val path: String,
+    private val info: SwaggerPath,
+    private val refResolver: RefResolverNative
+): ParserPath {
 
     override fun getPath(): String = path
 
@@ -24,7 +28,7 @@ class Path(private val path: String, private val info: SwaggerPath): ParserPath
         HttpMethod.values().map {
             val op = info.getOperation(it.method)
             if (op != null) {
-                ops.add (Operation(it, op, info))
+                ops.add (Operation(it, op, info, refResolver))
             }
         }
 

openapi-processor-core/src/main/kotlin/io/openapiprocessor/core/parser/swagger/RefResolverNative.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2022 https://github.com/openapi-processor/openapi-processor-base
+ * PDX-License-Identifier: Apache-2.0
+ */
+
+package io.openapiprocessor.core.parser.swagger
+
+import io.swagger.v3.oas.models.OpenAPI
+import io.swagger.v3.oas.models.parameters.RequestBody as SwaggerRequestBody
+
+class RefResolverNative(private val api: OpenAPI) {
+
+    fun resolve(body: SwaggerRequestBody): SwaggerRequestBody {
+        val refName = getRefName(body.`$ref`)
+        val requestBodies = api.components?.requestBodies
+        return requestBodies?.get(refName)!!
+    }
+
+    private fun getRefName(ref: String): String? {
+        val split = ref.split('#')
+        if (split.size > 1) {
+            val hash = split[1]
+            return hash.substring(hash.lastIndexOf('/') + 1)
+        }
+        return null
+    }
+}