/// <summary>
/// 客户端连接代理器，提供了相关的基本操作
/// </summary>
/// <param name="channel">客户端连接</param>
/// <param name="transactionManager">事务管理器</param>
public ThriftConnectionAgent(IMessageTransportChannel <ThriftMessage> channel, ThriftMessageTransactionManager transactionManager)
{
if (channel == null)
{
throw new ArgumentNullException("channel");
}
if (!channel.IsConnected)
{
throw new ArgumentException("Cannot wrap this msg channel, because current msg channel has been disconnected!");
}
if (transactionManager == null)
{
throw new ArgumentNullException("transactionManager");
}
_sequenceId = 0;
_channel = channel;
_transactionManager = transactionManager;
_channel.Disconnected += ChannelDisconnected;
_channel.ReceivedMessage += ChannelReceivedMessage;
}
/// <summary>
/// 创建一个新的连接代理器
/// </summary>
/// <param name="iep">远程终结点地址</param>
/// <param name="protocolStack">协议栈</param>
/// <param name="transactionManager">事务管理器</param>
/// <returns>如果无法连接到远程地址，则返回null.</returns>
public static IThriftConnectionAgent Create(IPEndPoint iep, IProtocolStack <ThriftMessage> protocolStack, ThriftMessageTransactionManager transactionManager)
{
if (iep == null)
{
throw new ArgumentNullException("iep");
}
if (protocolStack == null)
{
throw new ArgumentNullException("protocolStack");
}
if (transactionManager == null)
{
throw new ArgumentNullException("transactionManager");
}
ITransportChannel transportChannel = new TcpTransportChannel(iep);
transportChannel.Connect();
if (!transportChannel.IsConnected)
{
return(null);
}
IMessageTransportChannel <ThriftMessage> msgChannel = new MessageTransportChannel <ThriftMessage>((IRawTransportChannel)transportChannel, protocolStack, new ThriftProtocolSegmentDataParser((ThriftProtocolStack)protocolStack));
return(new ThriftConnectionAgent(msgChannel, transactionManager));
}
/// <summary>
/// 获取具有指定标示的连接代理器，如果具有该条件的代理器不存在，则会创建一个新的代理器
/// </summary>
/// <param name="key">连接标示</param>
/// <param name="roleId">服务角色编号</param>
/// <param name="protocolStack">连接所承载的协议栈</param>
/// <param name="transactionManager">事务管理器</param>
/// <returns>如果返回null, 则表示当前无法连接到目标远程终结点地址</returns>
public IThriftConnectionAgent GetChannel(string key, string roleId, IProtocolStack <ThriftMessage> protocolStack, ThriftMessageTransactionManager transactionManager)
{
string fullKey = string.Format("{0}#{1}", roleId, key);
return(base.GetChannel(key, fullKey, protocolStack, transactionManager));
}
