@splitsoftware/splitio-commons
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Split JavaScript SDK common components
68 lines (67 loc) • 3.06 kB
JavaScript
import { forOwn } from '../../../utils/lang';
import { syncTaskFactory } from '../../syncTask';
import { CONTROL } from '../../../utils/constants';
import { SDK_DEFINITIONS_ARRIVED, SDK_SEGMENTS_ARRIVED, SDK_DEFINITIONS_CACHE_LOADED, FLAGS_UPDATE, SEGMENTS_UPDATE } from '../../../readiness/constants';
import { SYNC_OFFLINE_DATA, ERROR_SYNC_OFFLINE_LOADING } from '../../../logger/constants';
/**
* Offline equivalent of `splitChangesUpdaterFactory`
*/
export function fromObjectUpdaterFactory(splitsParser, storage, readiness, settings) {
var log = settings.log, definitions = storage.definitions;
var startingUp = true;
return function objectUpdater() {
var splits = [];
var loadError = null;
var splitsMock = {};
try {
splitsMock = splitsParser(settings);
}
catch (err) {
loadError = err;
log.error(ERROR_SYNC_OFFLINE_LOADING, [err]);
}
if (!loadError && splitsMock) {
log.debug(SYNC_OFFLINE_DATA, [JSON.stringify(splitsMock)]);
forOwn(splitsMock, function (val, name) {
// @ts-ignore Split changeNumber and seed is undefined in localhost mode
splits.push({
name: name,
status: 'ACTIVE',
killed: false,
trafficAllocation: 100,
defaultTreatment: CONTROL,
conditions: val.conditions || [],
configurations: val.configurations,
trafficTypeName: val.trafficTypeName
});
});
return Promise.all([
definitions.clear(),
definitions.update(splits, [], Date.now())
]).then(function () {
readiness.definitions.emit(SDK_DEFINITIONS_ARRIVED, { type: FLAGS_UPDATE, names: [] });
if (startingUp) {
startingUp = false;
Promise.resolve(storage.validateCache ? storage.validateCache() : { initialCacheLoad: true /* Fallback: assume initial load when validateCache doesn't exist */ }).then(function (cacheMetadata) {
// Emits SDK_READY_FROM_CACHE
if (!cacheMetadata.initialCacheLoad) {
readiness.definitions.emit(SDK_DEFINITIONS_CACHE_LOADED, cacheMetadata);
}
// Emits SDK_READY
readiness.segments.emit(SDK_SEGMENTS_ARRIVED, { type: SEGMENTS_UPDATE, names: [] });
});
}
return true;
});
}
else {
return Promise.resolve(true);
}
};
}
/**
* PollingManager in Offline mode
*/
export function fromObjectSyncTaskFactory(splitsParser, storage, readiness, settings) {
return syncTaskFactory(settings.log, fromObjectUpdaterFactory(splitsParser, storage, readiness, settings), settings.scheduler.offlineRefreshRate, 'offlineUpdater');
}