@synerty/orb-vortexjs
Version:
Custom observable data serialisation and routing based on Angular2
163 lines • 8.3 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
var core_1 = require("@angular/core");
var rxjs_1 = require("rxjs");
var VortexService_1 = require("./VortexService");
var TupleSelector_1 = require("./TupleSelector");
var Payload_1 = require("./Payload");
var PayloadEndpoint_1 = require("./PayloadEndpoint");
var ComponentLifecycleEventEmitter_1 = require("./ComponentLifecycleEventEmitter");
var UtilMisc_1 = require("./UtilMisc");
var VortexStatusService_1 = require("./VortexStatusService");
var PayloadResponse_1 = require("./PayloadResponse");
var TupleDataObservableNameService = (function () {
function TupleDataObservableNameService(name, additionalFilt) {
if (additionalFilt === void 0) { additionalFilt = {}; }
this.name = name;
this.additionalFilt = additionalFilt;
}
return TupleDataObservableNameService;
}());
TupleDataObservableNameService = __decorate([
core_1.Injectable(),
__metadata("design:paramtypes", [String, Object])
], TupleDataObservableNameService);
exports.TupleDataObservableNameService = TupleDataObservableNameService;
var CachedSubscribedData = (function () {
function CachedSubscribedData() {
this.subject = new rxjs_1.Subject();
this.tuples = [];
this.serverResponded = false;
}
return CachedSubscribedData;
}());
exports.CachedSubscribedData = CachedSubscribedData;
var TupleDataObserverService = (function (_super) {
__extends(TupleDataObserverService, _super);
function TupleDataObserverService(vortexService, statusService, zone, tupleDataObservableName) {
var _this = _super.call(this) || this;
_this.vortexService = vortexService;
_this.statusService = statusService;
_this.zone = zone;
_this.cacheByTupleSelector = {};
_this.filt = UtilMisc_1.extend({
"name": tupleDataObservableName.name,
"key": "tupleDataObservable"
}, tupleDataObservableName.additionalFilt);
_this.endpoint = new PayloadEndpoint_1.PayloadEndpoint(_this, _this.filt);
_this.endpoint.observable.subscribe(function (payload) { return _this.receivePayload(payload); });
statusService.isOnline
.takeUntil(_this.onDestroyEvent)
.filter(function (online) { return online === true; })
.subscribe(function (online) { return _this.vortexOnlineChanged(); });
// Cleanup dead subscribers every 30 seconds.
var cleanupTimer = setInterval(function () { return _this.cleanupDeadCaches(); }, 30);
_this.onDestroyEvent.subscribe(function () { return clearInterval(cleanupTimer); });
return _this;
}
TupleDataObserverService.prototype.pollForTuples = function (tupleSelector) {
var startFilt = UtilMisc_1.extend({ "subscribe": false }, this.filt, {
"tupleSelector": tupleSelector
});
// Optionally typed, No need to worry about the fact that we convert this
// and then TypeScript doesn't recignise that data type change
var promise = new PayloadResponse_1.PayloadResponse(this.vortexService, new Payload_1.Payload(startFilt))
.then(function (payload) { return payload.tuples; });
return promise;
};
TupleDataObserverService.prototype.subscribeToTupleSelector = function (tupleSelector) {
var _this = this;
var tsStr = tupleSelector.toOrderedJsonStr();
if (this.cacheByTupleSelector.hasOwnProperty(tsStr)) {
var cachedData_1 = this.cacheByTupleSelector[tsStr];
// Emit the data 2 miliseconds later.
setTimeout(function () {
_this.notifyObservers(cachedData_1, tupleSelector, cachedData_1.tuples);
}, 2);
return cachedData_1.subject;
}
var newCahcedData = new CachedSubscribedData();
this.cacheByTupleSelector[tsStr] = newCahcedData;
this.tellServerWeWantData([tupleSelector]);
return newCahcedData.subject;
};
TupleDataObserverService.prototype.cleanupDeadCaches = function () {
for (var _i = 0, _a = UtilMisc_1.dictKeysFromObject(this.cacheByTupleSelector); _i < _a.length; _i++) {
var key = _a[_i];
var cachedData = this.cacheByTupleSelector[key];
if (cachedData.subject.observers.length == 0)
delete this.cacheByTupleSelector[key];
}
};
TupleDataObserverService.prototype.vortexOnlineChanged = function () {
this.cleanupDeadCaches();
var tupleSelectors = [];
for (var _i = 0, _a = UtilMisc_1.dictKeysFromObject(this.cacheByTupleSelector); _i < _a.length; _i++) {
var key = _a[_i];
tupleSelectors.push(TupleSelector_1.TupleSelector.fromJsonStr(key));
}
this.tellServerWeWantData(tupleSelectors);
};
TupleDataObserverService.prototype.receivePayload = function (payload) {
var tupleSelector = payload.filt.tupleSelector;
var tsStr = tupleSelector.toOrderedJsonStr();
if (!this.cacheByTupleSelector.hasOwnProperty(tsStr))
return;
var cachedData = this.cacheByTupleSelector[tsStr];
cachedData.tuples = payload.tuples;
cachedData.serverResponded = true;
this.notifyObservers(cachedData, tupleSelector, payload.tuples);
};
TupleDataObserverService.prototype.notifyObservers = function (cachedData, tupleSelector, tuples) {
try {
cachedData.subject.next(tuples);
}
catch (e) {
// NOTE: Observables automatically remove observers when the raise exceptions.
console.log("ERROR: TupleDataObserverService.notifyObservers, observable has been removed\n " + e.toString() + "\n " + tupleSelector.toOrderedJsonStr());
}
};
TupleDataObserverService.prototype.tellServerWeWantData = function (tupleSelectors) {
if (!this.statusService.snapshot.isOnline)
return;
var startFilt = UtilMisc_1.extend({ "subscribe": true }, this.filt);
var payloads = [];
for (var _i = 0, tupleSelectors_1 = tupleSelectors; _i < tupleSelectors_1.length; _i++) {
var tupleSelector = tupleSelectors_1[_i];
var filt = UtilMisc_1.extend({}, startFilt, {
"tupleSelector": tupleSelector
});
payloads.push(new Payload_1.Payload(filt));
}
this.vortexService.sendPayload(payloads);
};
return TupleDataObserverService;
}(ComponentLifecycleEventEmitter_1.ComponentLifecycleEventEmitter));
TupleDataObserverService = __decorate([
core_1.Injectable(),
__metadata("design:paramtypes", [VortexService_1.VortexService,
VortexStatusService_1.VortexStatusService,
core_1.NgZone,
TupleDataObservableNameService])
], TupleDataObserverService);
exports.TupleDataObserverService = TupleDataObserverService;
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