show number as strings

Author: HugoMario

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/SwaggerYamlGenerator.java

@@ -60,7 +60,9 @@ public void processOpts() {
     @Override
     public void processSwagger(Swagger swagger) {
         try {
-            final ObjectMapper mapper = new ObjectMapper(new YAMLFactory().configure(YAMLGenerator.Feature.MINIMIZE_QUOTES, true));
+            final ObjectMapper mapper = new ObjectMapper(new YAMLFactory()
+                    .configure(YAMLGenerator.Feature.MINIMIZE_QUOTES, true)
+                    .configure(YAMLGenerator.Feature.ALWAYS_QUOTE_NUMBERS_AS_STRINGS, true));
             configureMapper(mapper);
             String swaggerString = mapper.writeValueAsString(swagger);
             String outputFile = outputFolder + File.separator + this.outputFile;