gistfile1.js

util.inherits(LBClient, events.EventEmitter);

function LBClient() {

  events.EventEmitter.call(this);
  this.on('newLoadBalancer', this._scheduleLoadBalancer);
  this.on('loadBalancerScheduled', this._saveChildLoadBalancer);
  this.on('loadBalancerSaved', this._provisionChildLoadBalancer);
  this.on('loadBalancerProvisioned', this._updateChildLoadBalancer);
}

LBClient.prototype.createLoadBalancerWithNode = function (privateIP,
                                                          privatePort,
                                                          instanceUUID,
                                                          datastoreType) {

var childLB = { privateIP: privateIP, privatePort: privatePort,
                instanceUUID: instanceUUID, datastoreType: datastoreType,
              }

  this.emit('newLoadBalancer', childLB);
}

LBClient.prototype._scheduleLoadBalancer = function (childLB) {
  //                                                                                                                                                    
  var parentLB = { id:'1', virtualIP:'2' };
  this.emit('loadBalancerScheduled', childLB, parentLB);

}

LBClient.prototype._saveChildLoadBalancer = function (childLB, parentLB) {
  childLB.id = '99';
  this.emit('loadBalancerSaved', childLB, parentLB);
}

LBClient.prototype._provisionChildLoadBalancer = function(childLB, parentLB) {
  var remoteLB = {some: 'stuff'}
  this.emit('loadBalancerProvisioned', childLB, parentLB, remoteLB);
}

LBClient.prototype._updateChildLoadBalancer = function (childLb,
                                                        parentLB,
                                                        remoteLB) {
  this.emit('loadBalancerFinished', 'success');
}

module.exports.LBClient = LBClient