Здравствуйте.
Использую WCF для постороения распределенного приложения. Появилась проблема при передаче между клиентом и сервером сложного объекта.
Описание объекта:
Teacher
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
namespace TestCenter.BaseDatatype
{
[DataContract]
public class Teacher : User
{
[DataMember]
private Department department = new Department();
public Teacher()
{
this.pKey = -1;
}
public virtual Department Department { get; set;}
}
}
Department
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
namespace TestCenter.BaseDatatype
{
[DataContract]
public class Department : GroupGeneric
{
public Department()
{
pKey = -1;
}
public Department(int pKey, string name, string description)
{
this.pKey = pKey;
this.name = name;
this.description = description;
}
}
}
GroupGeneric
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using TestCenter.BaseDatatype;
namespace TestCenter.BaseDatatype
{
[DataContract]
[KnownType(typeof(Group))]
[KnownType(typeof(Department))]
public abstract class GroupGeneric
{
[DataMember]
protected int pKey;
[DataMember]
protected string name;
[DataMember]
protected string description;
[IgnoreDataMember]
static string valueMember = "PKey";
[IgnoreDataMember]
static string displayMember = "Name";
public virtual int PKey
{
get { return pKey; }
set { pKey = value; }
}
public virtual string Name
{
get { return name; }
set { name = value; }
}
public virtual string Description
{
get { return description; }
set { description = value; }
}
public static string DisplayMember
{
get { return GroupGeneric.displayMember; }
set { GroupGeneric.displayMember = value; }
}
public static string ValueMember
{
get { return GroupGeneric.valueMember; }
set { GroupGeneric.valueMember = value; }
}
static IEnumerable<Type> GetKnownTypes()
{
return new Type[] { typeof(Group), typeof(Department) };
}
}
}
описание серверной части
ITestCenterService
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ServiceModel;
using TestCenter.BaseDatatype;
using TestCenter;
using TestCenter.BaseDatatype.SingleChoice;
namespace TestCenter.BaseDatatype.Service
{
[ServiceContract(ProtectionLevel = System.Net.Security.ProtectionLevel.EncryptAndSign)]
public interface ITestCenterService
{
[OperationContract(ProtectionLevel = System.Net.Security.ProtectionLevel.EncryptAndSign)]
//[FaultContract(typeof(TrackedFault))]
Teacher AuthenticateTeacher(Credentials credentials);
}
}
TestCenterService
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namespace TestCenterServiceLib
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Multiple, IncludeExceptionDetailInFaults = false)]
[System.Security.SecurityCritical(System.Security.SecurityCriticalScope.Everything)]
public class TestCenterService : ITestCenterService
{
public Teacher AuthenticateTeacher(Credentials credentials)
{
//NHibernateAuthentification
using (var session = GetSessionFactory().OpenSession())
{
using (var tx = session.BeginTransaction())
{
Teacher teacherrrrr = null;
try
{
var teachers = from teacherr in session.Query<Teacher>()
where teacherr.Credentials.Login == credentials.Login
where teacherr.Credentials.Password == credentials.Password
select teacherr;
teacherrrrr = teachers.First();
tx.Commit();
OperationContext context = OperationContext.Current;
MessageProperties messageProperties = context.IncomingMessageProperties;
RemoteEndpointMessageProperty endpointProperty = messageProperties[RemoteEndpointMessageProperty.Name] as RemoteEndpointMessageProperty;
string strHostName = Dns.GetHostEntry(endpointProperty.Address).HostName;
string name = teacherrrrr.FirstName + " " + teacherrrrr.SecondName + " " + teacherrrrr.LastName;
//!!!!!!!!!!!!!!!!!!!!//OnAuthUser(new AuthUserEventArgs(student, strHostName));
}
catch (InvalidOperationException ex)
{
TrackedFault tf = new TrackedFault(
Guid.NewGuid(),
"Відповідь сервера:"
+ System.Environment.NewLine
+ System.Environment.NewLine
+ "user with login '" + credentials.Login + "' and current password not found",
DateTime.Now);
throw new FaultException<TrackedFault>(
tf,
new FaultReason("InvalidOperationException"),
FaultCode.CreateReceiverFaultCode(new FaultCode("AuthenticateStudent")));
}
catch (FaultException ex)
{
List<FaultReasonText> frts = new List<FaultReasonText>();
frts.Add(new FaultReasonText(
"Відповідь сервера:"
+ System.Environment.NewLine
+ System.Environment.NewLine
+ "Помилка аутентифікації"));
throw new FaultException(new FaultReason(frts),
FaultCode.CreateReceiverFaultCode(new FaultCode("AuthenticateStudent")));
}
return teacherrrrr;
}
}
//NHibernateAuthentification
}
}
вызов на стороне клиента производится следующим образом
TeacherSideProxy
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namespace TeacherSide
{
class TeacherSideProxy
{
private static void GetClientChannel(out ChannelFactory<ITestCenterService> channel, out ITestCenterService client)
{
NetTcpBinding binding = new NetTcpBinding() ;
binding.Security.Mode = SecurityMode.Transport;
Uri uri = new Uri(@"net.tcp://" + Settings.Default.ServerName + ":" + Settings.Default.ServerPort.ToString() + "/TestCenterServiceLib");
channel = new ChannelFactory<ITestCenterService>(binding, new EndpointAddress(uri.ToString()));
//channel.Credentials.ServiceCertificate
client = channel.CreateChannel();
}
internal static Teacher AuthenticateTeacher(Teacher user)
{
ChannelFactory<ITestCenterService> channel;
ITestCenterService client;
GetClientChannel(out channel, out client);
Teacher teacher = null;
try
{
teacher = client.AuthenticateTeacher(user.Credentials);
}
catch (FaultException<TrackedFault> tfexp)
{
throw new ServerErrorException(tfexp.Detail.Details);
}
catch (FaultException fex)
{
throw new ServerErrorException(fex.Message);
}
catch (EndpointNotFoundException ex)
{
throw new ServerNotFoundException("Помилка доступу до сервера");
}
catch (CommunicationException ex)
{
throw new ServerDisconnectedException("Сервер перервав зв'язок");
}
catch (TimeoutException ex)
{
throw new TimeoutException("Час очікування відповіді серевера закінчився");
}
finally
{
if (channel != null)
{
channel.Close();
}
}
return teacher;
}
}
}
Проблема вся в том, что на стороне сервера данные полные, а клиенту приходит объект, у которого значения поля Department равно null.
В чем проблема и как можно решить ее?
Надеюсь на помощь. Спасибо
