/// <summary>
/// 向服务器注册
/// </summary>
private bool RegsiterToServer()
{
// 先尝试检查远程服务器是否可以ping通
bool bIsRomateCanPing = IsCanPingPass();
if (!bIsRomateCanPing)
{
LOGGER.ERROR("Can't pass server ip ping test, will not use registe node and heart-beat");
return(false);
}
// 开始注册
SRegisteNode node = new SRegisteNode();
node.bankCardNo = FKConfig.BankCardNo;
node.ip = string.IsNullOrEmpty(FKConfig.LocalIP) ? FKBaseUtils.FKSystemEnviSettingHelper.GetLocalIPAddressByUri(FKConfig.ServerRegisteUrl) : FKConfig.LocalIP;
node.publicKey = RSAKeyContainer.GetInstance.GetCSharpPublicKey();
LOGGER.INFO($"Begin to register to server. Bank card No = {node.bankCardNo}, Ip = {node.ip}");
HttpSendResult result = RequestSender.SendRequestToServer(node);
if (result.IsSendSuccessed() && result.ErrorStatus == 1 && (!string.IsNullOrEmpty(result.publicKey)))
{
SetCurCashierNodeID(result.NodeID);
RSAKeyContainer.GetInstance.SetJavaPublicKey(result.publicKey);
LOGGER.INFO($"Register to server successed. Node id = {result.NodeID}");
return(true);
}
else
{
SetCurCashierNodeID(INVALID_NODE_ID);
LOGGER.ERROR($"Register to server failed. but still use registe node and heart-beat. Node id = {GetCurCashierNodeID()}");
return(true);
}
}
/// <summary>
/// 心跳函数
/// </summary>
private static void OnHeartbeatTimerEvent(Object source, ElapsedEventArgs e, string strHeartbeatUrl, MainForm form)
{
Thread.CurrentThread.Name = "FKHeartbeatThread";
if (!FKConfig.IsUseHttpServer)
{
return;
}
try
{
if (form.GetCurCashierNodeID() == INVALID_NODE_ID)
{
// NodeID无效，则重新注册
form.ClearLostHeartbeatCount();
SRegisteNode node = new SRegisteNode();
node.bankCardNo = FKConfig.BankCardNo;
node.ip = string.IsNullOrEmpty(FKConfig.LocalIP) ? FKBaseUtils.FKSystemEnviSettingHelper.GetLocalIPAddressByUri(FKConfig.ServerRegisteUrl) : FKConfig.LocalIP;
node.publicKey = RSAKeyContainer.GetInstance.GetCSharpPublicKey();
LOGGER.INFO($"Begin to register to server. Bank card No = {node.bankCardNo}, Ip = {node.ip}, C# public key = {node.publicKey}");
HttpSendResult result = RequestSender.SendRequestToServer(node);
if (result.IsSendSuccessed() && result.ErrorStatus == 1 && (!string.IsNullOrEmpty(result.publicKey)))
{
form.SetCurCashierNodeID(result.NodeID);
RSAKeyContainer.GetInstance.SetJavaPublicKey(result.publicKey);
LOGGER.INFO($"Register to server successed. Node id = {result.NodeID}, Java public key = {RSAKeyContainer.GetInstance.GetJavaPublicKey()}");
return;
}
LOGGER.ERROR($"Register to server failed. Node id = {result.NodeID}, Java public key = {RSAKeyContainer.GetInstance.GetJavaPublicKey()}");
return;
}
else
{
// 有效NodeID，表示注册成功，则发送心跳
SHeartbeat node = new SHeartbeat();
node.id = form.GetCurCashierNodeID();
node.taskID = form.GetCurTaskID();
HttpSendResult result = RequestSender.SendRequestToServer(node);
if (result.IsSendSuccessed() && result.ErrorStatus == 1 && result.NodeID > 0)
{
LOGGER.INFO($"Heart-beat successed. NodeID = {node.id}, TaskID = {node.taskID}");
return;
}
else
{
// 发送心跳失败
form.AddLostHeartbeatCount(); // 追加一次失败计数
if (form.GetLostHeartbeatCount() >= MAX_ALLOW_HEARTBEAT_FAILED_TIME)
{
// 心跳失联太多次
form.SetCurCashierNodeID(INVALID_NODE_ID);
RSAKeyContainer.GetInstance.SetJavaPublicKey(string.Empty);
LOGGER.WARN($"Heart-beat disconnect for a long time... Ready to register node again.");
}
else
{
// 心跳的确失联了，但还能忍
LOGGER.INFO($"Heart-beat connect failed {form.GetLostHeartbeatCount()} times. NodeID = {node.id}, TaskID = {node.taskID}");
}
}
}
}
catch (Exception ex)
{
LOGGER.ERROR($"Heart-beat error occured. Error = {ex.ToString()}");
}
}