|
//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Activities.DurableInstancing
{
using System.Data;
using System.Data.SqlClient;
using System.Globalization;
using System.Runtime.DurableInstancing;
using System.Transactions;
using System.Xml.Linq;
using System.Runtime;
class DetectActivatableWorkflowsAsyncResult : SqlWorkflowInstanceStoreAsyncResult
{
static readonly string commandText = string.Format(CultureInfo.InvariantCulture, "{0}.[GetActivatableWorkflowsActivationParameters]", SqlWorkflowInstanceStoreConstants.DefaultSchema);
public DetectActivatableWorkflowsAsyncResult
(
InstancePersistenceContext context,
InstancePersistenceCommand command,
SqlWorkflowInstanceStore store,
SqlWorkflowInstanceStoreLock storeLock,
Transaction currentTransaction,
TimeSpan timeout,
AsyncCallback callback,
object state
) :
base(context, command, store, storeLock, currentTransaction, timeout, callback, state)
{
}
protected override string ConnectionString
{
get
{
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(base.Store.CachedConnectionString);
builder.ApplicationName = SqlWorkflowInstanceStore.CommonConnectionPoolName;
return builder.ToString();
}
}
protected override void GenerateSqlCommand(SqlCommand sqlCommand)
{
sqlCommand.Parameters.Add(new SqlParameter { ParameterName = "@machineName", SqlDbType = SqlDbType.NVarChar, Value = SqlWorkflowInstanceStoreConstants.MachineName });
}
protected override string GetSqlCommandText()
{
return DetectActivatableWorkflowsAsyncResult.commandText;
}
protected override CommandType GetSqlCommandType()
{
return CommandType.StoredProcedure;
}
protected override Exception ProcessSqlResult(SqlDataReader reader)
{
Exception exception = StoreUtilities.GetNextResultSet(base.InstancePersistenceCommand.Name, reader);
if (exception == null)
{
bool signalEvent = false;
reader.NextResult();
signalEvent = reader.Read(); //The result set contains activatable workflows
if (signalEvent)
{
base.Store.UpdateEventStatus(true, HasActivatableWorkflowEvent.Value);
}
else
{
base.Store.UpdateEventStatus(false, HasActivatableWorkflowEvent.Value);
base.StoreLock.InstanceDetectionTask.ResetTimer(false);
}
}
return exception;
}
}
}
|