aws-event-stream
Version:
A simple and fast EventStore for AWS.
143 lines • 6.47 kB
JavaScript
;
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Object.defineProperty(exports, "__esModule", { value: true });
exports.EventStreamImpl = void 0;
var event_util_1 = require("./model/event-util");
/**
* An Event Stream
*/
var EventStreamImpl = /** @class */ (function () {
function EventStreamImpl(eventStore, stream) {
this.eventStore = eventStore;
this.stream = stream;
}
Object.defineProperty(EventStreamImpl.prototype, "streamId", {
/**
* The event stream identifier
* The event stream
*/
get: function () {
return this.stream.id;
},
enumerable: false,
configurable: true
});
Object.defineProperty(EventStreamImpl.prototype, "aggregation", {
/**
* The parent aggregation for this event stream
*/
get: function () {
return this.stream.aggregation;
},
enumerable: false,
configurable: true
});
/**
* Rertieve a list containing all the events in the stream in order.
* @param offset The start position in the stream list
* @param limit The desired quantity events
* @return All the events
*/
EventStreamImpl.prototype.getEvents = function (offset, limit) {
return this.getProvider().getEvents(this.stream, offset, limit);
};
/**
* Rertieve only one object containing all the events's data in the stream in order.
* @param offset The start position in the stream list
* @param limit The desired quantity events
* @return All the events
*/
EventStreamImpl.prototype.loadFromHistory = function (offset, limit) {
return __awaiter(this, void 0, void 0, function () {
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_a = event_util_1.eventMerge;
return [4 /*yield*/, this.getEvents(offset, limit)];
case 1: return [2 /*return*/, _a.apply(void 0, [_b.sent()])];
}
});
});
};
/**
* Add a new event to the end of the event stream.
* @param data The event data
* @param type The Event type
* @return The event, updated with informations like its sequence order and commitTimestamp
*/
EventStreamImpl.prototype.addEvent = function (data, type) {
return __awaiter(this, void 0, void 0, function () {
var addedEvent, eventId;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getProvider().addEvent(this.stream, data, type)];
case 1:
addedEvent = _a.sent();
if (!this.eventStore.publisher) return [3 /*break*/, 3];
return [4 /*yield*/, this.eventStore.publisher.publish({
event: addedEvent,
stream: this.stream
})];
case 2:
eventId = _a.sent();
addedEvent = __assign(__assign({}, addedEvent), { id: eventId });
_a.label = 3;
case 3: return [2 /*return*/, addedEvent];
}
});
});
};
EventStreamImpl.prototype.getProvider = function () {
return this.eventStore.provider;
};
return EventStreamImpl;
}());
exports.EventStreamImpl = EventStreamImpl;
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