/// <summary>
/// 处理XxlRpc请求流
/// </summary>
/// <param name="reqStream"></param>
/// <returns></returns>
public async Task <byte[]> HandlerAsync(Stream reqStream)
{
var req = HessianSerializer.DeserializeRequest(reqStream);
var res = new RpcResponse {
RequestId = req.RequestId
};
if (!ValidRequest(req, out var error))
{
this._logger.LogWarning("job task request is not valid:{error}", error);
res.ErrorMsg = error;
}
else
{
this._logger.LogDebug("receive job task ,req.RequestId={requestId},method={methodName}"
, req.RequestId, req.MethodName);
await Invoke(req, res);
this._logger.LogDebug("completed receive job task ,req.RequestId={requestId},method={methodName},IsError={IsError}"
, req.RequestId, req.MethodName, res.IsError);
}
using (var outputStream = new MemoryStream())
{
HessianSerializer.SerializeResponse(outputStream, res);
return(outputStream.GetBuffer());
}
}
private async Task <ReturnT> InvokeRpcService(string methodName, List <object> parameterTypes,
object parameters, bool polling = false)
{
var request = new RpcRequest {
RequestId = Guid.NewGuid().ToString("N"),
CreateMillisTime = DateTime.Now.GetTotalMilliseconds(),
AccessToken = _options.AccessToken,
ClassName = "com.xxl.job.core.biz.AdminBiz",
MethodName = methodName,
ParameterTypes = parameterTypes,
Parameters = new List <object> {
parameters
}
};
byte[] postBuf;
using (var stream = new MemoryStream())
{
HessianSerializer.SerializeRequest(stream, request);
postBuf = stream.ToArray();
}
var triedTimes = 0;
var retList = new List <ReturnT>();
using (var client = this._clientFactory.CreateClient(Constants.DefaultHttpClientName))
{
while (triedTimes++ < this._addresses.Count)
{
var address = this._addresses[this._currentIndex];
this._currentIndex = (this._currentIndex + 1) % this._addresses.Count;
if (!address.CheckAccessible())
{
continue;
}
Stream resStream;
try
{
resStream = await DoPost(client, address, postBuf);
address.Reset();
}
catch (Exception ex)
{
this._logger.LogError(ex, "request admin error.{0}", ex.Message);
address.SetFail();
continue;
}
RpcResponse res = null;
try
{
/*
* using (StreamReader reader = new StreamReader(resStream))
* {
* string content = await reader.ReadToEndAsync();
*
* this._logger.LogWarning(content);
* }
*/
res = HessianSerializer.DeserializeResponse(resStream);
}
catch (Exception ex)
{
this._logger.LogError(ex, "DeserializeResponse error:{errorMessage}", ex.Message);
}
if (res == null)
{
retList.Add(ReturnT.Failed("response is null"));
}
else if (res.IsError)
{
retList.Add(ReturnT.Failed(res.ErrorMsg));
}
else if (res.Result is ReturnT ret)
{
retList.Add(ret);
}
else
{
retList.Add(ReturnT.Failed("response is null"));
}
if (!polling)
{
return(retList[0]);
}
}
if (retList.Count > 0)
{
return(retList.Last());
}
}
throw new Exception("xxl-rpc server address not accessible.");
}