nope/lib/helpers/jsonSchemaMethods.ts
2021-12-04 08:25:26 +01:00

62 lines
1.6 KiB
TypeScript

/**
* @author Martin Karkowski
* @email m.karkowski@zema.de
* @create date 2020-11-06 08:53:55
* @modify date 2020-11-06 08:53:56
* @desc [description]
*/
import { IJsonSchema } from "../types/IJSONSchema";
import { flattenObject, rgetattr, rsetattr, SPLITCHAR } from "./objectMethods";
/**
* Function to Flatten a JSON-Schema.
* @param schema
*/
export function flattenSchema(schema: IJsonSchema) {
let counter = 10000;
let flattenSchema = flattenObject(schema);
const getRefKeys = (flattenSchema: Map<string, any>) => {
const relevantKeys: Array<{ schemaPath: string; searchPath: string }> = [];
for (const [key, value] of flattenSchema) {
if (key.endsWith("$ref")) {
relevantKeys.push({
schemaPath: key,
searchPath: value.replace("#/", "").replace("/", SPLITCHAR),
});
}
}
return relevantKeys;
};
let refs = getRefKeys(flattenSchema);
while (refs.length > 0) {
counter--;
if (counter === 0) {
throw Error("Max amount of Recursions performed");
}
for (const ref of refs) {
const subSchema = rgetattr(schema, ref.searchPath, null, ".");
rsetattr(schema, ref.schemaPath.replace(".$ref", ""), subSchema);
}
flattenSchema = flattenObject(schema);
refs = getRefKeys(flattenSchema);
}
return schema as IJsonSchema;
}
/**
* Function to get a Schemas Definition
* @param schema the JSON-Schema
* @param reference the path of the relevant definition.
*/
export function schemaGetDefinition(schema: IJsonSchema, reference: string) {
return rgetattr(schema, reference.replace("#/", ""), null, "/");
}