/// <summary>
/// Create a new business object.
/// </summary>
/// <param name="objectType">Type of business object to create.</param>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Create(
Type objectType, object criteria, DataPortalContext context)
{
try
{
SetContext(context);
DataPortalResult result;
MethodInfo method = MethodCaller.GetCreateMethod(objectType, criteria);
IDataPortalServer portal;
switch (TransactionalType(method))
{
case TransactionalTypes.EnterpriseServices:
portal = new ServicedDataPortal();
try
{
result = portal.Create(objectType, criteria, context);
}
finally
{
((ServicedDataPortal)portal).Dispose();
}
break;
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal();
result = portal.Create(objectType, criteria, context);
break;
default:
portal = new SimpleDataPortal();
result = portal.Create(objectType, criteria, context);
break;
}
return result;
}
catch (DataPortalException ex)
{
Exception tmp = ex;
throw;
}
catch (Exception ex)
{
throw new DataPortalException(
"DataPortal.Create " + "Failed on server",
ex, new DataPortalResult());
}
finally
{
ClearContext(context);
}
}
/// <summary>
/// Called by the client-side DataPortal to update 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="obj">A reference to the object being updated.</param>
/// <param name="context">Context data from the client.</param>
/// <returns>A reference to the newly updated object.</returns>
public DataPortalResult Update(object obj, DataPortalContext context)
{
DataPortalResult result;
using (TransactionScope tr = new TransactionScope())
{
SimpleDataPortal portal = new SimpleDataPortal();
result = portal.Update(obj, context);
tr.Complete();
}
return result;
}
/// <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>
/// <returns>A populated business object.</returns>
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
DataPortalResult result;
using (TransactionScope tr = new TransactionScope())
{
SimpleDataPortal portal = new SimpleDataPortal();
result = portal.Fetch(objectType, criteria, context);
tr.Complete();
}
return result;
}
public DataPortalResult Create(
Type objectType, object criteria, DataPortalContext context)
{
object obj = null;
try
{
// create an instance of the business object.
obj = Activator.CreateInstance(objectType, true);
// tell the business object we're about to make a DataPortal_xyz call
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvoke", new DataPortalEventArgs(context));
// tell the business object to create its data
MethodInfo method = MethodCaller.GetCreateMethod(objectType, criteria);
if (criteria is int)
MethodCaller.CallMethod(obj, method);
else
MethodCaller.CallMethod(obj, method, criteria);
// mark the object as new
MethodCaller.CallMethodIfImplemented(
obj, "MarkNew");
// tell the business object the DataPortal_xyz call is complete
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvokeComplete",
new DataPortalEventArgs(context));
// return the populated business object as a result
return new DataPortalResult(obj);
}
catch (Exception ex)
{
try
{
// tell the business object there was an exception
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalException",
new DataPortalEventArgs(context), ex);
}
catch
{
// ignore exceptions from the exception handler
}
throw new DataPortalException(
"DataPortal.Create " + "Failed on server",
ex, new DataPortalResult(obj));
}
}
public DataPortalResult Update(object obj, DataPortalContext context)
{
try
{
// tell the business object we're about to make a DataPortal_xyz call
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvoke",
new DataPortalEventArgs(context));
// tell the business object to update itself
if (obj is Core.BusinessBase)
{
Core.BusinessBase busObj = (Core.BusinessBase)obj;
if (busObj.IsDeleted)
{
if (!busObj.IsNew)
{
// tell the object to delete itself
MethodCaller.CallMethod(
busObj, "DataPortal_DeleteSelf");
}
// mark the object as new
MethodCaller.CallMethodIfImplemented(
busObj, "MarkNew");
}
else
{
if (busObj.IsNew)
{
// tell the object to insert itself
MethodCaller.CallMethod(
busObj, "DataPortal_Insert");
}
else
{
// tell the object to update itself
MethodCaller.CallMethod(
busObj, "DataPortal_Update");
}
// mark the object as old
MethodCaller.CallMethodIfImplemented(
busObj, "MarkOld");
}
}
else if (obj is CommandBase)
{
// tell the object to update itself
MethodCaller.CallMethod(
obj, "DataPortal_Execute");
}
else
{
// this is an updatable collection or some other
// non-BusinessBase type of object
// tell the object to update itself
MethodCaller.CallMethod(
obj, "DataPortal_Update");
// mark the object as old
MethodCaller.CallMethodIfImplemented(
obj, "MarkOld");
}
// tell the business object the DataPortal_xyz is complete
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvokeComplete",
new DataPortalEventArgs(context));
return new DataPortalResult(obj);
}
catch (Exception ex)
{
try
{
// tell the business object there was an exception
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalException",
new DataPortalEventArgs(context), ex);
}
catch
{
// ignore exceptions from the exception handler
}
throw new DataPortalException(
"DataPortal.Update " + "Failed on server",
ex, new DataPortalResult(obj));
}
}
public DataPortalResult Delete(object criteria, DataPortalContext context)
{
SimpleDataPortal portal = new SimpleDataPortal();
return portal.Delete(criteria, context);
}
public DataPortalResult Update(object obj, DataPortalContext context)
{
SimpleDataPortal portal = new SimpleDataPortal();
return portal.Update(obj, context);
}
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
SimpleDataPortal portal = new SimpleDataPortal();
return portal.Fetch(objectType, criteria, context);
}
/// <summary>
/// Called by <see cref="DataPortal" /> to delete a
/// business object.
/// </summary>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Delete(object criteria, DataPortalContext context)
{
return _portal.Delete(criteria, context);
}
/// <summary>
/// Called by <see cref="DataPortal" /> to update a
/// business object.
/// </summary>
/// <param name="obj">The business object to update.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Update(object obj, DataPortalContext context)
{
return _portal.Update(obj, context);
}
/// <summary>
/// Called by <see cref="DataPortal" /> to create a
/// new business object.
/// </summary>
/// <param name="objectType">Type of business object to create.</param>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Create(
Type objectType, object criteria, DataPortalContext context)
{
return _portal.Create(objectType, criteria, context);
}
/// <summary>
/// Creates an instance of the object.
/// </summary>
/// <param name="dataPortalContext">
/// Data portal context object.
/// </param>
public DataPortalEventArgs(Server.DataPortalContext dataPortalContext)
{
_dataPortalContext = dataPortalContext;
}
private static void ClearContext(DataPortalContext context)
{
// if the dataportal is not remote then
// do nothing
if (!context.IsRemotePortal) return;
ApplicationContext.Clear();
if (ApplicationContext.AuthenticationType != "Windows")
ApplicationContext.User = null;
}
private static void SetContext(DataPortalContext context)
{
// if the dataportal is not remote then
// do nothing
if (!context.IsRemotePortal) return;
// set the context value so everyone knows the
// code is running on the server
ApplicationContext.SetExecutionLocation(ApplicationContext.ExecutionLocations.Server);
// set the app context to the value we got from the
// client
ApplicationContext.SetContext(context.ClientContext, context.GlobalContext);
// set the thread's culture to match the client
System.Threading.Thread.CurrentThread.CurrentCulture =
new System.Globalization.CultureInfo(context.ClientCulture);
System.Threading.Thread.CurrentThread.CurrentUICulture =
new System.Globalization.CultureInfo(context.ClientUICulture);
if (ApplicationContext.AuthenticationType == "Windows")
{
// When using integrated security, Principal must be null
if (context.Principal == null)
{
// Set .NET to use integrated security
AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
return;
}
else
{
System.Security.SecurityException ex =
new System.Security.SecurityException("No Princioal allowed");
ex.Action = System.Security.Permissions.SecurityAction.Deny;
throw ex;
}
}
// We expect the Principal to be of the type BusinesPrincipal
if (context.Principal != null)
{
if (context.Principal is Security.BusinessPrincipalBase)
{
ApplicationContext.User = context.Principal;
}
else
{
System.Security.SecurityException ex =
new System.Security.SecurityException(
"Business Pricipal exception" + " " +
((object)context.Principal).ToString());
ex.Action = System.Security.Permissions.SecurityAction.Deny;
throw ex;
}
}
else
{
System.Security.SecurityException ex =
new System.Security.SecurityException(
"Business Pricipal exception" + " Nothing");
ex.Action = System.Security.Permissions.SecurityAction.Deny;
throw ex;
}
}
public DataPortalResult Delete(object criteria, DataPortalContext context)
{
object obj = null;
try
{
// create an instance of the business objet
obj = CreateBusinessObject(criteria);
// tell the business object we're about to make a DataPortal_xyz call
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvoke",
new DataPortalEventArgs(context));
// tell the business object to delete itself
MethodCaller.CallMethod(
obj, "DataPortal_Delete", criteria);
// tell the business object the DataPortal_xyz call is complete
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalInvokeComplete",
new DataPortalEventArgs(context));
return new DataPortalResult();
}
catch (Exception ex)
{
try
{
// tell the business object there was an exception
MethodCaller.CallMethodIfImplemented(
obj, "DataPortal_OnDataPortalException",
new DataPortalEventArgs(context), ex);
}
catch
{
// ignore exceptions from the exception handler
}
throw new DataPortalException(
"DataPortal.Delete " + "Failed on server",
ex, new DataPortalResult());
}
}
/// <summary>
/// Called by <see cref="DataPortal" /> to load 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>
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
return _portal.Fetch(objectType, criteria, context);
}
public DataPortalResult Update(object obj, DataPortalContext context)
{
try
{
SetContext(context);
DataPortalResult result;
MethodInfo method;
string methodName;
if (obj is CommandBase)
methodName = "DataPortal_Execute";
else if (obj is Core.BusinessBase)
{
Core.BusinessBase tmp = (Core.BusinessBase)obj;
if (tmp.IsDeleted)
methodName = "DataPortal_DeleteSelf";
else
if (tmp.IsNew)
methodName = "DataPortal_Insert";
else
methodName = "DataPortal_Update";
}
else
methodName = "DataPortal_Update";
method = MethodCaller.GetMethod(obj.GetType(), methodName);
IDataPortalServer portal;
switch (TransactionalType(method))
{
case TransactionalTypes.EnterpriseServices:
portal = new ServicedDataPortal();
try
{
result = portal.Update(obj, context);
}
finally
{
((ServicedDataPortal)portal).Dispose();
}
break;
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal();
result = portal.Update(obj, context);
break;
default:
portal = new SimpleDataPortal();
result = portal.Update(obj, context);
break;
}
return result;
}
catch (DataPortalException ex)
{
Exception tmp = ex;
throw;
}
catch (Exception ex)
{
throw new DataPortalException(
"DataPortal.Update " + "Failed on server",
ex, new DataPortalResult());
}
finally
{
ClearContext(context);
}
}
