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| /*
| MIT License http://www.opensource.org/licenses/mit-license.php
| Author Tobias Koppers @sokra
| */
| "use strict";
|
| function getCacheId(request, withContext) {
| return JSON.stringify({
| context: withContext ? request.context : "",
| path: request.path,
| query: request.query,
| request: request.request
| });
| }
|
| module.exports = class UnsafeCachePlugin {
| constructor(source, filterPredicate, cache, withContext, target) {
| this.source = source;
| this.filterPredicate = filterPredicate;
| this.withContext = withContext;
| this.cache = cache || {};
| this.target = target;
| }
|
| apply(resolver) {
| const target = resolver.ensureHook(this.target);
| resolver
| .getHook(this.source)
| .tapAsync("UnsafeCachePlugin", (request, resolveContext, callback) => {
| if (!this.filterPredicate(request)) return callback();
| const cacheId = getCacheId(request, this.withContext);
| const cacheEntry = this.cache[cacheId];
| if (cacheEntry) {
| return callback(null, cacheEntry);
| }
| resolver.doResolve(
| target,
| request,
| null,
| resolveContext,
| (err, result) => {
| if (err) return callback(err);
| if (result) return callback(null, (this.cache[cacheId] = result));
| callback();
| }
| );
| });
| }
| };
|
|
