extract ref resolver

Author: hauner

src/main/kotlin/io/openapiprocessor/core/parser/openapi4j/OpenApi.kt

@@ -28,15 +28,19 @@ import org.openapi4j.parser.model.v3.Path as O4jPath
  *
  * @author Martin Hauner
  */
-class OpenApi(private val api: O4jOpenApi, private val validations: ValidationResults): ParserOpenApi {
+class OpenApi(
+    private val api: O4jOpenApi,
+    private val validations: ValidationResults,
+): ParserOpenApi {
+    private val refResolver: RefResolverNative = RefResolverNative(api)
 
     override fun getPaths(): Map<String, ParserPath> {
         val paths = linkedMapOf<String, ParserPath>()
 
         api.paths.forEach { (name: String, value: O4jPath) ->
             var path = value
-            if (isRef(value)) {
-                path = resolve (path)
+            if (path.isRef) {
+                path = refResolver.resolve(path)
             }
 
             paths[name] = Path(name, path)
@@ -50,12 +54,4 @@ class OpenApi(private val api: O4jOpenApi, private val validations: ValidationRe
     override fun printWarnings() {
     }
 
-    private fun resolve(path: O4jPath): O4jPath {
-        return path.getReference (api.context).getMappedContent (O4jPath::class.java)
-    }
-
-    private fun isRef(path: O4jPath): Boolean {
-        return path.ref != null
-    }
-
 }

src/main/kotlin/io/openapiprocessor/core/parser/openapi4j/RefResolverNative.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright © 2020 https://github.com/openapi-processor/openapi-processor-core
+ * PDX-License-Identifier: Apache-2.0
+ */
+
+package io.openapiprocessor.core.parser.openapi4j
+
+import org.openapi4j.parser.model.v3.OpenApi3
+import org.openapi4j.parser.model.v3.Path as O4jPath
+
+/**
+ * openapi4j $ref resolver on o4j types.
+ */
+class RefResolverNative(private val api: OpenApi3) {
+
+    fun resolve(path: O4jPath): O4jPath {
+        return path.getReference(api.context).getMappedContent(O4jPath::class.java)
+    }
+
+}