add isSwagger2 selector

src/core/plugins/oas3/helpers.js

@@ -9,6 +9,15 @@ export function isOAS3(jsSpec) {
   return oasVersion.startsWith("3.0.0")
 }
 
+export function isSwagger2(jsSpec) {
+  const swaggerVersion = jsSpec.get("swagger")
+  if(!swaggerVersion) {
+    return false
+  }
+
+  return swaggerVersion.startsWith("2")
+}
+
 export function OAS3ComponentWrapFactory(Component) {
   return (Ori, system) => (props) => {
     if(system && system.specSelectors && system.specSelectors.specJson) {

src/core/plugins/oas3/wrap-selectors.js

@@ -1,6 +1,6 @@
 import { createSelector } from "reselect"
 import { Map } from "immutable"
-import { isOAS3 as isOAS3Helper } from "./helpers"
+import { isOAS3 as isOAS3Helper, isSwagger2 as isSwagger2Helper } from "./helpers"
 
 
 // Helpers
@@ -60,3 +60,8 @@ export const isOAS3 = (ori, system) => () => {
   const spec = system.getSystem().specSelectors.specJson()
   return isOAS3Helper(spec)
 }
+
+export const isSwagger2 = (ori, system) => () => {
+  const spec = system.getSystem().specSelectors.specJson()
+  return isSwagger2Helper(spec)
+}