Resolve allOf in JsonSchema component

lib/components/JsonSchema/json-schema.js

@@ -17,6 +17,7 @@ export default class JsonSchema extends BaseComponent {
 
   prepareModel() {
     this.dereference();
+    this.joinAllOf();
     this.requiredMap = {};
     if (this.schema.required) {
       this.schema.required.forEach(prop => this.requiredMap[prop] = true);
@@ -26,7 +27,7 @@ export default class JsonSchema extends BaseComponent {
     this.data.properties = [];
     if (schema.type !== 'object') {
       // TODO
-      this.errorMessage = 'Non-object (array-based or all-of) schemas are not implemented yet';
+      this.errorMessage = 'Non-object (array-based) schemas are not implemented yet';
       return;
     }
     if (!schema.properties) return;

lib/components/base.js

@@ -98,6 +98,36 @@ export class BaseComponent {
     });
   }
 
+  joinAllOf(schema = this.componentSchema) {
+    var self = this;
+    function merge(into, schemas) {
+      if (into.required || into.properties) {
+        console.warn('WARN: properties or required field set on the same level as allOf');
+      }
+      into.required = [];
+      into.properties = {};
+      for (let subSchema of schemas) {
+        if (typeof subSchema !== 'object' || subSchema.type !== 'object') {
+          console.warn('WARN: incorrect allOf element skipped\nObject: ', subSchema);
+        }
+
+        self.joinAllOf(subSchema);
+
+        if (subSchema.properties) {
+          Object.assign(into.properties, subSchema.properties);
+        }
+        if (subSchema.required) {
+          into.required.push(...subSchema.required);
+        }
+      }
+      into.type = 'object';
+      into.allOf = null;
+    }
+    if (schema.allOf) {
+      merge(schema, schema.allOf);
+    }
+  }
+
   /**
    * Used to prepare model based on component schema
    * @abstract