internal static void ApplyResourcePrefixHeaderFromSession(ref CallSettings settings, string resource)
{
// If we haven't been given a resource name, just leave the request as it is.
if (string.IsNullOrEmpty(resource))
{
return;
}
if (SessionName.TryParse(resource, out SessionName session))
{
var database = DatabaseName.FromProjectInstanceDatabase(
session.ProjectId, session.InstanceId, session.DatabaseId);
settings = settings.WithHeader(ResourcePrefixHeader, database.ToString());
}
}
private PooledSession(SessionPool.ISessionPool pool, SessionName sessionName, ByteString transactionId, ModeOneofCase transactionMode, DateTime evictionTime, long refreshTicks)
{
GaxPreconditions.CheckArgument(
(transactionId == null) == (transactionMode == ModeOneofCase.None),
nameof(transactionMode),
"Transaction mode and ID don't match.");
_pool = pool;
SessionName = GaxPreconditions.CheckNotNull(sessionName, nameof(sessionName));
TransactionId = transactionId;
TransactionMode = transactionMode;
_session = new Session {
SessionName = SessionName
};
_evictionTime = evictionTime;
_refreshTicks = refreshTicks;
}
/// <summary>
/// Creates a <see cref="PooledSession"/> with a known name and transaction ID/mode, with the client associated
/// with this pool, but is otherwise not part of this pool. This method does not query the server for the session state.
/// When the returned <see cref="PooledSession"/> is released, it will not become part of this pool, and the transaction
/// will not be rolled back.
/// </summary>
/// <remarks>
/// This is typically used for partitioned queries, where the same session is used across multiple machines, so should
/// not be reused by the pool.
/// </remarks>
/// <param name="sessionName">The name of the transaction. Must not be null.</param>
/// <param name="transactionId">The ID of the transaction. Must not be null.</param>
/// <param name="transactionMode">The mode of the transaction.</param>
/// <returns>A <see cref="PooledSession"/> for the given session and transaction.</returns>
public PooledSession CreateDetachedSession(SessionName sessionName, ByteString transactionId, ModeOneofCase transactionMode)
{
GaxPreconditions.CheckNotNull(sessionName, nameof(sessionName));
GaxPreconditions.CheckNotNull(transactionId, nameof(transactionId));
return(PooledSession.FromSessionName(_detachedSessionPool, sessionName).WithTransaction(transactionId, transactionMode));
}
/// <summary> /// Creates a <see cref="PooledSession"/> with a known name and transaction ID/mode, with the client associated /// with this pool, but is otherwise not part of this pool. This method does not query the server for the session state. /// When the returned <see cref="PooledSession"/> is released, it will not become part of this pool, and the transaction /// will not be rolled back. /// </summary> /// <remarks> /// This is typically used for partitioned queries, where the same session is used across multiple machines, so should /// not be reused by the pool. /// </remarks> /// <param name="sessionName">The name of the transaction. Must not be null.</param> /// <param name="transactionId">The ID of the transaction. Must not be null.</param> /// <param name="transactionMode">The mode of the transaction.</param> /// <returns>A <see cref="PooledSession"/> for the given session and transaction.</returns> public PooledSession CreateDetachedSession(SessionName sessionName, ByteString transactionId, ModeOneofCase transactionMode) => CreateDetachedSession(sessionName, transactionId, transactionMode, readTimestamp: null);