Adds new command line argument nonCompliantUseDiscriminatorIfCompositionFails

Author: spacether

modules/openapi-json-schema-generator/src/main/java/org/openapitools/codegen/CodegenConstants.java

@@ -404,4 +404,14 @@ public static enum ENUM_PROPERTY_NAMING_TYPE {camelCase, PascalCase, snake_case,
 
     public static final String ERROR_OBJECT_TYPE = "errorObjectType";
 
+    public static final String NON_COMPLIANT_USE_DISCR_IF_COMPOSITION_FAILS = "nonCompliantUseDiscriminatorIfCompositionFails";
+
+    public static final String NON_COMPLIANT_USE_DISCR_IF_COMPOSITION_FAILS_DESC =
+            "When true, If the payload fails to validate against composed schemas (allOf/anyOf/oneOf/not) and a discriminator is present, " +
+            "then ignore the compostion validation errors and attempt to use the discriminator to validate the payload. " +
+            "Note: setting this to true makes the generated client not comply with json schema because it ignores compotion validation errors . " +
+            "Please consider making your schemas more restrictive rather than setting this to true. You can do that by: " +
+            "- defining the propertyName as an enum with only one value in the schemas that are in your discriminator map" +
+            "- setting additionalProperties: false in your schemas";
+
 }

modules/openapi-json-schema-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java

@@ -215,6 +215,8 @@ public PythonClientCodegen() {
         cliOptions.add(new CliOption(RECURSION_LIMIT, "Set the recursion limit. If not set, use the system default value."));
         cliOptions.add(CliOption.newBoolean(USE_INLINE_MODEL_RESOLVER, "use the inline model resolver, if true inline complex models will be extracted into components and $refs to them will be used").
                 defaultValue(Boolean.FALSE.toString()));
+        CliOption nonCompliantUseDiscrIfCompositionFails = CliOption.newBoolean(CodegenConstants.NON_COMPLIANT_USE_DISCR_IF_COMPOSITION_FAILS, CodegenConstants.NON_COMPLIANT_USE_DISCR_IF_COMPOSITION_FAILS_DESC);
+        cliOptions.add(nonCompliantUseDiscrIfCompositionFails);
 
         supportedLibraries.put("urllib3", "urllib3-based client");
         CliOption libraryOption = new CliOption(CodegenConstants.LIBRARY, "library template (sub-template) to use: urllib3");