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#pragma warning disable 1634, 1691
using System;
using System.Diagnostics;
using System.Transactions;
using System.Collections;
using System.Collections.Generic;
using System.Workflow.Runtime.Hosting;
namespace System.Workflow.Runtime
{
/// <summary>
/// Volatile Resource Manager
/// </summary>
internal sealed class VolatileResourceManager
{
// members
private WorkBatchCollection _workCollection = new WorkBatchCollection();
private WorkBatch _mergedBatch = null;
// constructor
internal VolatileResourceManager()
{
}
// properties
internal WorkBatchCollection BatchCollection
{
get
{
return _workCollection;
}
}
internal bool IsBatchDirty
{
get
{
IDictionaryEnumerator de = _workCollection.GetEnumerator();
while (de.MoveNext())
{
WorkBatch batch = (WorkBatch)de.Value;
if (batch.IsDirty)
return true;
}
return false;
}
}
WorkBatch GetMergedBatch()
{
return this._workCollection.GetMergedBatch();
}
internal void Commit()
{
_mergedBatch = GetMergedBatch();
Transaction transaction = Transaction.Current;
if (null == transaction)
throw new InvalidOperationException(ExecutionStringManager.NullAmbientTransaction);
// Do Commit Sequence iteration over work collection
_mergedBatch.Commit(transaction);
}
internal void Complete()
{
try
{
_mergedBatch.Complete(true);
}
finally
{
if (_mergedBatch != null)
{
_mergedBatch.Dispose();
_mergedBatch = null;
}
if (_workCollection != null)
{
_workCollection.ClearSubBatches();
}
}
}
internal void HandleFault()
{
//
// We've failed, clear the merged batch
if (_mergedBatch != null)
{
_mergedBatch.Dispose();
_mergedBatch = null;
}
// clear transient batch which holds instance state primarily
if (_workCollection != null)
{
_workCollection.ClearTransientBatch();
}
}
internal void ClearAllBatchedWork()
{
if (_workCollection != null)
_workCollection.RollbackAllBatchedWork();
}
}
}
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