@raona/sp
Version:
Raona utilities to work with Sharepoint using pnp/sp
122 lines (121 loc) • 6.62 kB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
var lscache = require("lscache");
var notifier_1 = require("./notifier");
var Bind_1 = require("../decorators/Bind");
var PersistentStorageV2 = /** @class */ (function () {
function PersistentStorageV2(storageKey, expirationTime) {
this.storageKey = storageKey;
this.expirationTime = expirationTime;
this.notifier = notifier_1.Notifier.getInstance();
}
/**
* Function to setup the persistent storage, only needed if you want/can retrieve the data,
* if you only want to subscribe, call PersistentStorage.subscribe() instead and you will be
* notified of changes on that data.
*
* @param callback Function to retrieve the data to be persisted on cache
* @param expirationTime Persistance duration for the data retrieved by the callback, by default will use the one provided on the constructor.
*/
PersistentStorageV2.prototype.setup = function (callback, expirationTime) {
return __awaiter(this, void 0, void 0, function () {
var data, value;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
data = this.get();
if (!(data === null)) return [3 /*break*/, 2];
return [4 /*yield*/, callback()];
case 1:
value = _a.sent();
this.set(value, this.getExpirationTime(expirationTime));
_a.label = 2;
case 2: return [2 /*return*/];
}
});
});
};
PersistentStorageV2.prototype.get = function () {
return this.getFromStorage();
};
PersistentStorageV2.prototype.getFromStorage = function () {
return lscache.get(this.storageKey)
? lscache.get(this.storageKey).value
: null;
};
PersistentStorageV2.prototype.getExpirationTime = function (expirationTime) {
return expirationTime || this.expirationTime;
};
PersistentStorageV2.prototype.set = function (data, expirationTime) {
lscache.set(this.storageKey, { value: data }, this.getExpirationTime(expirationTime));
this.notifier.notify(this.storageKey, data);
};
/**
* You will be subscribed to data changes for this persistent storage,
* only one subscription is allowed, for multiple subscriptions to the same key,
* you will need multiple instances.
*
* @param callback Function to be called on cached data change.
*/
PersistentStorageV2.prototype.subscribe = function (callback) {
if (this.subscription)
this.unsubscribe();
this.subscription = this.notifier.subscribe(this.storageKey, callback);
};
/**
* Call this for cleanup purposes, to clean up the subscription and avoid memory leaks.
*/
PersistentStorageV2.prototype.unsubscribe = function () {
if (!this.subscription)
return;
var _a = this.subscription, subscriptionName = _a.subscriptionName, subscriptionId = _a.subscriptionId;
this.notifier.unsubscribe({ subscriptionName: subscriptionName, subscriptionId: subscriptionId });
this.subscription = undefined;
};
__decorate([
Bind_1.Bind()
], PersistentStorageV2.prototype, "get", null);
return PersistentStorageV2;
}());
exports.PersistentStorageV2 = PersistentStorageV2;