public void ExecuteTransaction(TransactionFramework.TransactionChain transactionChain)
{
/// TODO: Need to figure why this is happening for the re-alignment code.
/// TODO: Probably should add a warning in the debugger to indicate there is a potential performance problem if there are too many chains with empty transactions.
if (transactionChain.NumOfTransactions <= 0)
{
return;
}
TransactionFramework.ISoapTransactionLinkExecutor executor = transactionChain;
if (executor == null)
{
throw new NotSupportedException("This is not a supported type of link. This link does not implement ISoapTransactionLinkExecutor.");
}
lock (_executionThreadsLock)
{
ExecutionThreads.AddTransactionChain(transactionChain);
if (_isInProcess)
{
executor = null;
}
else
{
ExecutionThreads.MoveToNextChain();
_isInProcess = true;
}
}
if (MapManagerActivityStatusUpdated != null)
{
MapManagerActivityEventArgs status = new MapManagerActivityEventArgs();
status.TransactionsLeft = ExecutionThreads.Count + 1;
status.Status = ActivityStatusEnum.Busy;
MapManagerActivityStatusUpdated.Invoke(this, status);
}
if (executor != null)
{
/// TODO: Remove the following
TransactionFramework.TransactionChain chain = executor as TransactionFramework.TransactionChain;
if (chain != null)
{
System.Diagnostics.Debug.WriteLine(chain.ChainId);
}
///
executor.TransactionFailed += OnTransactionFailed;
executor.TransactionCompleted += OnTransactionCompleted;
executor.ExecuteTransaction(Guid.Empty, ServiceProxy);
}
}
private void OnTransactionCompleted(object sender, Service.CompleteTransactionCompletedEventArgs e)
{
TransactionFramework.ISoapTransactionLinkExecutor executor = null;
lock (_executionThreadsLock)
{
if (e.Error != null)
{
/// An error occurred so let's retry the transaction.
executor = ExecutionThreads.CurrentChain;
}
while (executor == null && ExecutionThreads.Count > 0)
{
_isInProcess = true;
executor = ExecutionThreads.MoveToNextChain();
executor.UpdateDependencies();
if (executor.Dependencies.IsCompleted)
{
executor.TransactionFailed += OnTransactionFailed;
executor.TransactionCompleted += OnTransactionCompleted;
}
else
{
IncompleteExecutionThreads.Add(executor);
executor.Dependencies.FacadesCompleted += OnTransactionChainFacadesCompleted;
executor = null;
}
}
}
if (executor != null)
{
/// TODO: Remove the following
TransactionFramework.TransactionChain chain = executor as TransactionFramework.TransactionChain;
if (chain != null)
{
System.Diagnostics.Debug.WriteLine(chain.ChainId);
}
///
if (MapManagerActivityStatusUpdated != null)
{
MapManagerActivityEventArgs status = new MapManagerActivityEventArgs();
status.TransactionsLeft = ExecutionThreads.Count + 1;
status.Status = ActivityStatusEnum.Busy;
MapManagerActivityStatusUpdated.Invoke(this, status);
}
executor.ExecuteTransaction(Guid.Empty, ServiceProxy);
}
else
{
_isInProcess = false;
if (MapManagerActivityStatusUpdated != null)
{
MapManagerActivityEventArgs status = new MapManagerActivityEventArgs();
status.TransactionsLeft = 0;
status.Status = ActivityStatusEnum.Idle;
MapManagerActivityStatusUpdated.Invoke(this, status);
}
}
}
public void ForceTransactionReExecution()
{
TransactionFramework.ISoapTransactionLinkExecutor executor = null;
if (_executionThreadsLock == null || ExecutionThreads == null || ExecutionThreads.CurrentChain == null || ExecutionThreads.CurrentChain.End == null)
{
return;
}
TransactionFramework.TransactionChain transactionChain = ExecutionThreads.CurrentChain;
transactionChain.Reset();
/// If the last transaction is in one of the post execution states and the user has requested to force the commit,
/// then it means we should attempt to do the current transaction again as something appears to have happened to
/// cause the previous attempt to hang.
if (transactionChain.End.TransactionStatus == TransactionFramework.ServerStatus.TransactionCompleted || transactionChain.End.TransactionStatus == TransactionFramework.ServerStatus.TransactionReceived || transactionChain.End.TransactionStatus == TransactionFramework.ServerStatus.TransactionFailed)
{
executor = ExecutionThreads.CurrentChain;
/// Debug lines
/// TODO: Remove the following
if (transactionChain != null)
{
System.Diagnostics.Debug.WriteLine(transactionChain.ChainId);
}
///
if (MapManagerActivityStatusUpdated != null)
{
MapManagerActivityEventArgs status = new MapManagerActivityEventArgs();
status.TransactionsLeft = ExecutionThreads.Count + 1;
status.Status = ActivityStatusEnum.Busy;
MapManagerActivityStatusUpdated.Invoke(this, status);
}
executor.ExecuteTransaction(Guid.Empty, ServiceProxy);
}
}
