/// <summary>
/// Called by the client-side DataProtal to retrieve an object.
/// </summary>
/// <remarks>
/// This method delegates to
/// <see cref="SimpleDataPortal">SimpleDataPortal</see>
/// but wraps that call within a
/// <see cref="TransactionScope">TransactionScope</see>
/// to provide transactional support via
/// System.Transactions.
/// </remarks>
/// <param name="objectType">Type of business object to retrieve.</param>
/// <param name="criteria">Object-specific criteria.</param>
/// <param name="context">Object containing context data from client.</param>
/// <param name="isSync">True if the client-side proxy should synchronously invoke the server.</param>
/// <returns>A populated business object.</returns>
public async Task <DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
DataPortalResult result;
using (TransactionScope tr = CreateTransactionScope())
{
result = await _portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
tr.Complete();
}
return(result);
}
public async Task <DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
var portal = new DataPortalBroker();
return(await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false));
}
/// <summary>
/// Get an existing business object.
/// </summary>
/// <param name="objectType">Type of business object to retrieve.</param>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
/// <param name="isSync">True if the client-side proxy should synchronously invoke the server.</param>
public async Task <DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
try
{
SetContext(context);
Initialize(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
AuthorizeRequest(new AuthorizeRequest(objectType, criteria, DataPortalOperations.Fetch));
DataPortalResult result;
DataPortalMethodInfo method = DataPortalMethodCache.GetFetchMethod(objectType, criteria);
IDataPortalServer portal;
#if !(ANDROID || IOS) && !NETFX_CORE
switch (method.TransactionalAttribute.TransactionType)
{
#if !MONO
case TransactionalTypes.EnterpriseServices:
portal = GetServicedComponentPortal(method.TransactionalAttribute);
try
{
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
}
finally
{
((System.EnterpriseServices.ServicedComponent)portal).Dispose();
}
break;
#endif
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal(method.TransactionalAttribute);
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
break;
default:
portal = new DataPortalBroker();
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
break;
}
#else
portal = new DataPortalBroker();
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
#endif
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Result = result, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
return(result);
}
catch (Csla.Server.DataPortalException ex)
{
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = ex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw;
}
catch (AggregateException ex)
{
Exception error = null;
if (ex.InnerExceptions.Count > 0)
{
error = ex.InnerExceptions[0].InnerException;
}
else
{
error = ex;
}
var fex = DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
new DataPortalExceptionHandler().InspectException(objectType, criteria, "DataPortal.Fetch", error),
null);
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = fex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw fex;
}
catch (Exception ex)
{
var fex = DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
new DataPortalExceptionHandler().InspectException(objectType, criteria, "DataPortal.Fetch", ex),
null);
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = fex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw fex;
}
finally
{
ClearContext(context);
}
}
/// <summary>
/// Get an existing business object.
/// </summary>
/// <param name="objectType">Type of business object to retrieve.</param>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
/// <param name="isSync">True if the client-side proxy should synchronously invoke the server.</param>
public async Task <DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
try
{
SetContext(context);
Initialize(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
AuthorizeRequest(new AuthorizeRequest(objectType, criteria, DataPortalOperations.Fetch));
DataPortalResult result;
DataPortalMethodInfo method;
Reflection.ServiceProviderMethodInfo serviceProviderMethodInfo;
if (criteria is EmptyCriteria)
{
serviceProviderMethodInfo = Reflection.ServiceProviderMethodCaller.FindDataPortalMethod <FetchAttribute>(objectType, null);
}
else
{
serviceProviderMethodInfo = Reflection.ServiceProviderMethodCaller.FindDataPortalMethod <FetchAttribute>(objectType, Server.DataPortal.GetCriteriaArray(criteria));
}
serviceProviderMethodInfo.PrepForInvocation();
method = serviceProviderMethodInfo.DataPortalMethodInfo;
IDataPortalServer portal;
switch (method.TransactionalAttribute.TransactionType)
{
#if !NETSTANDARD2_0 && !NET5_0
case TransactionalTypes.EnterpriseServices:
portal = GetServicedComponentPortal(method.TransactionalAttribute);
try
{
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
}
finally
{
((System.EnterpriseServices.ServicedComponent)portal).Dispose();
}
break;
#endif
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal(method.TransactionalAttribute);
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
break;
default:
portal = new DataPortalBroker();
result = await portal.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false);
break;
}
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Result = result, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
return(result);
}
catch (Csla.Server.DataPortalException ex)
{
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = ex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw;
}
catch (AggregateException ex)
{
Exception error = null;
if (ex.InnerExceptions.Count > 0)
{
error = ex.InnerExceptions[0].InnerException;
}
else
{
error = ex;
}
var fex = DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
new DataPortalExceptionHandler().InspectException(objectType, criteria, "DataPortal.Fetch", error),
null);
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = fex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw fex;
}
catch (Exception ex)
{
var fex = DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
new DataPortalExceptionHandler().InspectException(objectType, criteria, "DataPortal.Fetch", ex),
null);
Complete(new InterceptArgs {
ObjectType = objectType, Parameter = criteria, Exception = fex, Operation = DataPortalOperations.Fetch, IsSync = isSync
});
throw fex;
}
finally
{
ClearContext(context);
}
}