Package	com.aispeech.factory
Class	public class ConnectionFactory
Inheritance	ConnectionFactory flash.events.EventDispatcher

Connection factory

If not instructed, connection factory firstly try local service (timout in 2 seconds). If failed, it connect the URLList webservice to retrieve an array of connection candidates. If such effort fails, it uses the defalt connection candidates.

Given an array connection candidates, it firstly try rtmp service, and then rtmpt service if necessary. It uses GroupConnectionStraty instance to make connection to the candidates.

Dispatch FactoryEvent.READY event, if one connection established data {connection:IConnection}

Dispatch FactoryEvent.EXCEPTION_TIMEOUT, if no connection established

Connection factory also manage connection history and re-connecting stratety: number of continuous retry is limited and assuming local server never close (for the time being)

---