/// <summary>
/// start service host by serviceInfo
/// </summary>
/// <param name="serviceInfo"></param>
/// <returns></returns>
public static int OpenService(ServiceInfo serviceInfo)
{
void SetEnvironment()
{
if (serviceInfo.Environment == null)
{
TraceHelper.TraceVerbose(Utility.GetJobId(), "No environment fond.");
return;
}
foreach (var env in serviceInfo.Environment)
{
Environment.SetEnvironmentVariable(env.Key, env.Value);
TraceHelper.TraceVerbose(Utility.GetJobId(), $"Set environment {env.Key}={env.Value}.");
}
}
async Task <string[]> DownloadDependFiles()
{
if (serviceInfo.DependFiles != null && serviceInfo.DependFiles.Any())
{
var downloadTasks = serviceInfo.DependFiles.Select(fileInfo => StandaloneDataClient.DownloadFileFromSasAsync(
fileInfo.Value,
Path.Combine(Path.Combine(Path.GetTempPath(), "ExcelOffloading"), Path.GetFileName(fileInfo.Key))));
return(await Task.WhenAll(downloadTasks));
}
else
{
TraceHelper.TraceVerbose(Utility.GetJobId(), "No depend files fond.");
return(new string[0]);
}
}
Environment.SetEnvironmentVariable(Constant.JobIDEnvVar, serviceInfo.JobId.ToString());
Environment.SetEnvironmentVariable(Constant.TaskIDEnvVar, serviceInfo.TaskId.ToString());
Environment.SetEnvironmentVariable(Constant.CoreIdsEnvVar, serviceInfo.CoreId.ToString());
Environment.SetEnvironmentVariable(Constant.ServiceConfigFileNameEnvVar, serviceInfo.FileName);
if (!string.IsNullOrEmpty(serviceInfo.RegistrationPath))
{
Environment.SetEnvironmentVariable(Constant.RegistryPathEnv, serviceInfo.RegistrationPath);
}
else
{
Environment.SetEnvironmentVariable(Constant.RegistryPathEnv, Path.Combine(Environment.CurrentDirectory, defaultRegistryPath));
}
TraceHelper.TraceVerbose(Utility.GetJobId(), $"Set {Constant.RegistryPathEnv} to {Environment.GetEnvironmentVariable(Constant.RegistryPathEnv)}");
// use default values for following environment variables
Environment.SetEnvironmentVariable(Constant.ProcNumEnvVar, "1");
Environment.SetEnvironmentVariable(Constant.NetworkPrefixEnv, Constant.EnterpriseNetwork);
Environment.SetEnvironmentVariable(Constant.ServiceInitializationTimeoutEnvVar, "60000");
Environment.SetEnvironmentVariable(Constant.CancelTaskGracePeriodEnvVar, "15");
Environment.SetEnvironmentVariable(Constant.ServiceConfigMaxMessageEnvVar, "65536");
Environment.SetEnvironmentVariable(Constant.ServiceConfigServiceOperatonTimeoutEnvVar, "86400000");
// the local host process won't be preempted by the scheduler
Environment.SetEnvironmentVariable(Constant.EnableMessageLevelPreemptionEnvVar, bool.FalseString);
SetEnvironment();
var dependFilePath = DownloadDependFiles().GetAwaiter().GetResult();
Environment.SetEnvironmentVariable(Constant.DataServiceSharedFileEnvVar, string.Join(";", dependFilePath));
#if DEBUG
#region For EndpointNotFoundException test
try
{
string strWaitPeriod = ConfigurationManager.AppSettings["Test_WaitPeriodBeforeStartup"];
if (!string.IsNullOrEmpty(strWaitPeriod))
{
int waitPeriodInMilliSecond = int.Parse(strWaitPeriod);
Console.Error.WriteLine("Debug: waiting {0} ms before startup service", waitPeriodInMilliSecond);
Thread.Sleep(waitPeriodInMilliSecond);
}
}
catch (Exception)
{
// do nothing
}
#endregion
#endif
jobId = Utility.GetJobId();
string serviceConfigFullPath;
bool onAzure = SoaHelper.IsOnAzure();
TraceHelper.TraceInfo(
jobId,
"OnAzure = {0}",
onAzure);
bool bOpenDummy = false;
try
{
string serviceConfigFileName = Environment.GetEnvironmentVariable(Constant.ServiceConfigFileNameEnvVar);
// exit if no such env var
if (string.IsNullOrEmpty(serviceConfigFileName))
{
bOpenDummy = true;
Console.Error.WriteLine(StringTable.ServiceConfigFileNameNotSpecified);
return(ErrorCode.ServiceHost_ServiceConfigFileNameNotSpecified);
}
if (onAzure)
{
string localCacheFolder = Utility.GetServiceLocalCacheFullPath();
serviceConfigFullPath = Path.Combine(localCacheFolder, serviceConfigFileName);
}
else
{
serviceConfigFullPath = GetServiceInfo(serviceConfigFileName);
}
if (!File.Exists(serviceConfigFullPath))
{
bOpenDummy = true;
Console.Error.WriteLine(StringTable.CantFindServiceRegistrationFile, serviceConfigFullPath);
return(ErrorCode.ServiceHost_ServiceRegistrationFileNotFound);
}
TraceHelper.TraceInfo(
jobId,
"ServiceConfigFullPath = {0}",
serviceConfigFullPath);
ServiceRegistration registration;
string assemblyFullPath;
int errorCode = Utility.GetServiceRegistration(serviceConfigFullPath, onAzure, out registration, out assemblyFullPath);
if (errorCode != ErrorCode.Success)
{
bOpenDummy = true;
return(errorCode);
}
// Open the host in another application domain
AppDomain domain = CreateNewServiceDomain(serviceConfigFullPath, assemblyFullPath);
using (CcpServiceHostWrapper host =
CreateInstanceFromAndUnwrap <CcpServiceHostWrapper>(
domain,
Assembly.GetExecutingAssembly().Location,
serviceConfigFullPath,
onAzure,
ServiceHostRuntimeConfiguration.Standalone))
{
host.Initialize();
host.Run();
TraceHelper.TraceInfo(
jobId,
"Sleep...");
if (ServiceHostRuntimeConfiguration.Standalone)
{
// Endless listening, till service info deleted.
while (true)
{
lock (ServiceInfo.s_lock)
{
if (SvcHostMgmtRestServer.Info == null)
{
TraceHelper.TraceInfo(
jobId,
"Close service host!");
host.Dispose();
return(0);
}
}
Thread.Sleep(1000);
}
}
else
{
// Endless waiting, till it's being killed
Thread.Sleep(Timeout.Infinite);
}
}
}
catch (Exception e)
{
Console.Error.WriteLine(e.Message);
TraceHelper.TraceError(
jobId,
e.ToString());
// Failed to open service, fall back to open an dummy service.
bOpenDummy = true;
}
finally
{
if (bOpenDummy)
{
OpenDummyService(onAzure);
}
}
return(0);
}
