四好公路
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'use strict';
var KafkaClient = require('./kafkaClient');
var util = require('util');
var EventEmitter = require('events');
function Admin (kafkaClient) {
EventEmitter.call(this);
if (!(kafkaClient instanceof KafkaClient)) {
throw new Error("'Admin' only accepts 'KafkaClient' for its kafka client.");
}
var self = this;
this.client = kafkaClient;
this.ready = this.client.ready;
this.client.on('ready', function () {
self.ready = true;
self.emit('ready');
});
this.client.once('connect', function () {
self.emit('connect');
});
this.client.on('error', function (err) {
self.emit('error', err);
});
}
util.inherits(Admin, EventEmitter);
Admin.prototype.listGroups = function (cb) {
if (!this.ready) {
this.once('ready', () => this.listGroups(cb));
return;
}
this.client.getListGroups(cb);
};
Admin.prototype.describeGroups = function (consumerGroups, cb) {
if (!this.ready) {
this.once('ready', () => this.describeGroups(consumerGroups, cb));
return;
}
this.client.getDescribeGroups(consumerGroups, cb);
};
module.exports = Admin;