public WcfResponse Fetch(CriteriaRequest request)
{
Csla.Server.DataPortal portal = new Csla.Server.DataPortal();
Exception error = null;
DataPortalResult result = null;
WcfResponse response = null;
ISerializationFormatter formatter = SerializationFormatterFactory.GetFormatter();
try
{
request = ConvertRequest(request);
DataPortalContext context = new DataPortalContext(
formatter.Deserialize(request.Principal) as IPrincipal,
true,
request.ClientCulture,
request.ClientUICulture,
formatter.Deserialize(request.ClientContext) as ContextDictionary,
formatter.Deserialize(request.GlobalContext) as ContextDictionary);
result = portal.Fetch(Type.GetType(request.TypeName), formatter.Deserialize(request.CriteriaData), context);
response = new WcfResponse(
formatter.Serialize(result.ReturnObject),
formatter.Serialize(error),
formatter.Serialize(Csla.ApplicationContext.GlobalContext));
}
catch (Exception ex)
{
error = ex;
response = new WcfResponse(
null,
formatter.Serialize(error),
formatter.Serialize(Csla.ApplicationContext.GlobalContext));
}
return(ConvertResponse(response));
}
private DataPortalResult GetResult(ISerializationFormatter formatter, WcfResponse response)
{
response = ConvertResponse(response);
object result = formatter.Deserialize(response.ObjectData);
ContextDictionary globalContext = (ContextDictionary)formatter.Deserialize(response.GlobalContext);
DataPortalResult returnValue = new DataPortalResult(result, globalContext);
return(returnValue);
}
public object Deserialize(Type expectedType, IDeserializationContext context)
{
try
{
_logger.LogInformation("Deserialising: {name}", expectedType?.Name ?? "{null expetced type}");
var size = context.StreamReader.ReadLong();
_logger.LogInformation("Size {size}", size);
if (size == 0)
{
return(null);
}
using (var memoryStream = new MemoryStream((int)size))
{
var bytes = context.StreamReader.ReadBytes((int)size);
memoryStream.Write(bytes, 0, bytes.Length);
memoryStream.Position = 0;
// memoryStream.Seek(0, SeekOrigin.Begin);
var deserialised = _cslaSerializarionFormatter.Deserialize(memoryStream);
return(deserialised);
}
}
catch (Exception e)
{
_logger.LogError(e, "Could not deserialise.");
throw;
}
}
/// <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)
{
ChannelFactory <IExtendableWcfPortalForDotNet> cf = GetChannelFactory();
IExtendableWcfPortalForDotNet svr = GetProxy(cf);
WcfResponse response = null;
ISerializationFormatter formatter = SerializationFormatterFactory.GetFormatter();
try
{
response =
svr.Create(GetRequest(formatter, objectType, criteria, context));
if (cf != null)
{
cf.Close();
}
}
catch
{
cf.Abort();
throw;
}
DataPortalResult result = GetResult(formatter, response);
Exception error = (Exception)formatter.Deserialize(response.Error);
if (error != null)
{
throw error;
}
return(result);
}
/// <summary>
/// Clones an object.
/// </summary>
/// <param name="obj">The object to clone.</param>
/// <remarks>
/// <para>The object to be cloned must be serializable.</para>
/// <para>The serialization is performed using the formatter
/// specified in ApplicationContext.</para>
/// <para>The default is to use the MobileFormatter.</para>
/// </remarks>
public object Clone(object obj)
{
using var buffer = new MemoryStream();
ISerializationFormatter formatter =
SerializationFormatterFactory.GetFormatter(ApplicationContext);
formatter.Serialize(buffer, obj);
buffer.Position = 0;
return(formatter.Deserialize(buffer));
}
/// <summary>
/// Clones an object.
/// </summary>
/// <param name="obj">The object to clone.</param>
/// <remarks>
/// <para>The object to be cloned must be serializable.</para>
/// <para>The serialization is performed using the formatter
/// specified in the application's configuration file
/// using the CslaSerializationFormatter key.</para>
/// <para>The default is to use the
/// <see cref="System.Runtime.Serialization.Formatters.Binary.BinaryFormatter" />
/// </para>. You may also choose to use the Microsoft .NET 3.0
/// <see cref="System.Runtime.Serialization.NetDataContractSerializer">
/// NetDataContractSerializer</see> provided as part of WCF.
/// </remarks>
public static object Clone(object obj)
{
using (MemoryStream buffer = new MemoryStream())
{
ISerializationFormatter formatter =
SerializationFormatterFactory.GetFormatter();
formatter.Serialize(buffer, obj);
buffer.Position = 0;
object temp = formatter.Deserialize(buffer);
return(temp);
}
}
public void Execute(string command)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
var request = _formatter.Deserialize <CommandRequest>(command);
Type handlerType = typeof(ICommandHandler <>)
.MakeGenericType(request.Command.GetType());
dynamic handler = _container.GetInstance(handlerType);
handler.Handle((dynamic)(request.Command));
}
public static object Deserialize(this ISerializationFormatter formatter, byte[] objectData)
{
if (objectData != null)
{
using (MemoryStream stream = new MemoryStream(objectData))
{
return(formatter.Deserialize(stream));
}
}
else
{
return(null);
}
}
private DataPortalResult GetResult(ISerializationFormatter formatter, WcfResponse response)
{
response = ConvertResponse(response);
object result = formatter.Deserialize(response.ObjectData);
ContextDictionary globalContext = (ContextDictionary)formatter.Deserialize(response.GlobalContext);
DataPortalResult returnValue = new DataPortalResult(result, globalContext);
return returnValue;
}
protected internal void UndoChanges(int parentEditLevel)
{
UndoingChanges();
// if we are a child object we might be asked to
// undo below the level of stacked states,
// so just do nothing in that case
if (EditLevel > 0)
{
if (this.EditLevel - 1 != parentEditLevel)
{
throw new UndoException(string.Format(Resources.EditLevelMismatchException, "UndoChanges"));
}
HybridDictionary state;
using (MemoryStream buffer = new MemoryStream(_stateStack.Pop()))
{
buffer.Position = 0;
ISerializationFormatter formatter =
SerializationFormatterFactory.GetFormatter();
state = (HybridDictionary)formatter.Deserialize(buffer);
}
Type currentType = this.GetType();
do
{
var currentTypeName = currentType.FullName;
// get the list of fields in this type
List <DynamicMemberHandle> handlers = UndoableHandler.GetCachedFieldHandlers(currentType);
foreach (var h in handlers)
{
// the field is undoable, so restore its value
var value = h.DynamicMemberGet(this);
if (typeof(Csla.Core.IUndoableObject).IsAssignableFrom(h.MemberType))
{
// this is a child object
// see if the previous value was empty
//if (state.Contains(h.MemberName))
if (state.Contains(GetFieldName(currentTypeName, h.MemberName)))
{
// previous value was empty - restore to empty
h.DynamicMemberSet(this, null);
}
else
{
// make sure the variable has a value
if (value != null)
{
// this is a child object, cascade the call.
((Core.IUndoableObject)value).UndoChanges(this.EditLevel,
BindingEdit);
}
}
}
else
{
// this is a regular field, restore its value
h.DynamicMemberSet(this, state[GetFieldName(currentTypeName, h.MemberName)]);
//h.DynamicMemberSet(this, state[h.MemberName]);
}
}
currentType = currentType.BaseType;
} while (currentType != typeof(UndoableBase));
}
UndoChangesComplete();
}
