open-consul/ui-v2/app/services/data-source/protocols/http/blocking.js

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import Service, { inject as service } from '@ember/service';
import { get } from '@ember/object';
import { BlockingEventSource as EventSource } from 'consul-ui/utils/dom/event-source';
import { ifNotBlocking } from 'consul-ui/services/settings';
import { restartWhenAvailable } from 'consul-ui/services/client/http';
import maybeCall from 'consul-ui/utils/maybe-call';
export default Service.extend({
client: service('client/http'),
settings: service('settings'),
source: function(find, configuration) {
return new EventSource((configuration, source) => {
const close = source.close.bind(source);
const deleteCursor = () => (configuration.cursor = undefined);
//
return maybeCall(deleteCursor, ifNotBlocking(this.settings))().then(() => {
return find(configuration)
.then(maybeCall(close, ifNotBlocking(this.settings)))
.then(function(res = {}) {
const meta = get(res, 'meta') || {};
if (typeof meta.cursor === 'undefined' && typeof meta.interval === 'undefined') {
close();
}
return res;
})
.catch(restartWhenAvailable(this.client));
});
}, configuration);
},
});