redoc/lib/utils/SchemaManager.js

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'use strict';
import SwaggerParser from 'swagger-parser';
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import JsonPointer from './JsonPointer';
export class SchemaManager {
constructor() {
if (SchemaManager.prototype._instance) {
return SchemaManager.prototype._instance;
}
SchemaManager.prototype._instance = this;
this._schema = {};
}
static instance() {
return new SchemaManager();
}
load(url) {
let promise = new Promise((resolve, reject) => {
this._schema = {};
SwaggerParser.bundle(url)
.then(
(schema) => {
this._schema = schema;
resolve(this._schema);
},
(err) => reject(err)
);
});
return promise;
}
get schema() {
// TODO: consider returning promise
return this._schema;
}
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byPointer(pointer) {
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let res = null;
try {
res = JsonPointer.get(this._schema, pointer);
} catch(e) {/*skip*/ }
return res;
}
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}