/// <summary>
/// <para>Gets the instance of the
/// <see cref="Microsoft.Hpc.Scheduler.Session.Data.DataClient" /> class that has the specified
/// string identifier.</para>
/// </summary>
/// <param name="dataClientId">
/// <para>A
/// <see cref="System.String" /> that specifies the identifier for the
/// <see cref="Microsoft.Hpc.Scheduler.Session.Data.DataClient" /> object that you want to get.</para>
/// </param>
/// <returns>
/// <para>A <see cref="Microsoft.Hpc.Scheduler.Session.Data.DataClient" /> object that has the specified identifier.</para>
/// </returns>
public static DataClient GetDataClient(string dataClientId)
{
Microsoft.Hpc.Scheduler.Session.Data.Utility.ValidateDataClientId(dataClientId);
if (!inService)
{
throw new InvalidOperationException(SR.ServiceContextIsNotAvailable);
}
using (NonHARegistry registry = new NonHARegistry())
{
if (registry.CheckIfNonDomain().GetAwaiter().GetResult())
{
return(GetNonDomainDataClient(dataClientId));
}
}
if (SoaHelper.IsOnAzure())
{
// if it is running in Azure, just talk to DataProxy
// Note: headnode name will not be used.
return(DataClient.Open("dataproxy", dataClientId));
}
lock (lockDataServerInfoInitialized)
{
if (!bDataServerInfoInitialized)
{
string strDataServerInfo = Environment.GetEnvironmentVariable(Microsoft.Hpc.Scheduler.Session.Internal.Constant.SoaDataServerInfoEnvVar);
if (!string.IsNullOrEmpty(strDataServerInfo))
{
dataServerInfo = new DataServerInfo(strDataServerInfo);
}
else
{
logger.TraceEvent(TraceEventType.Error, 0, "[ServiceContext] .GetDataClient: no data server configured");
DataServerInfoConfigException = new DataException(DataErrorCode.NoDataServerConfigured, SR.NoDataServerConfigured);
}
bDataServerInfoInitialized = true;
}
}
if (dataServerInfo != null)
{
string containerPath = DataContainerHelper.OpenDataContainer(dataServerInfo, dataClientId);
return(new DataClient(dataClientId, containerPath, /*readOnly = */ true));
}
else
{
throw DataServerInfoConfigException;
}
}
/// <summary>
/// Initializes a new instance of the DataClient class
/// </summary>
/// <param name="dataClientId">data client id</param>
/// <param name="info">data client info</param>
/// <param name="readOnly">a flag indicating whether the DataClient instance is readonly or not</param>
internal DataClient(string dataClientId, DataClientInfo info, bool readOnly)
{
this.id = dataClientId;
this.isReadOnly = readOnly;
if (string.IsNullOrEmpty(info.SecondaryDataPath))
{
this.dataContainer = DataContainerHelper.GetDataContainer(info.PrimaryDataPath);
}
else
{
this.dataContainer = DataContainerHelper.GetDataContainer(info.PrimaryDataPath, info.SecondaryDataPath);
}
}
/// <summary>
/// Initializes a new instance of the DataClient class
/// </summary>
/// <param name="dataClientId">data client id</param>
/// <param name="dataStorePath">data store path</param>
/// <param name="readOnly">a flag indicating whether the DataClient instance is readonly or not</param>
internal DataClient(string dataClientId, string dataStorePath, bool readOnly)
{
this.id = dataClientId;
this.isReadOnly = readOnly;
this.dataContainer = DataContainerHelper.GetDataContainer(dataStorePath);
}