/// <summary>
/// Unregister implementation for channel.
/// </summary>
/// <param name="contractType">Type of the contract.</param>
/// <param name="channelId">The channel id.</param>
public static void UnregisterImplementationForChannel(Type contractType, string channelId)
{
DoInitializeCheck();
if (contractType == null)
{
ThrowHelper.ThrowArgumentNullException("contractType");
}
if (!ChannelServices.IsChannelRegistered(channelId))
{
ThrowHelper.ThrowArgumentException("Default channel identifier has not found.");
}
lock (mContractDescriptors)
{
if (mContractDescriptors.ContainsKey(contractType))
{
ContractServiceSideDescriptor descriptor = mContractDescriptors[contractType];
if (descriptor.ImplementationPerChannel.ContainsKey(channelId))
{
descriptor.ImplementationPerChannel.Remove(channelId);
}
}
else
{
ThrowHelper.ThrowArgumentException("Contract type has not been registered.");
}
}
}
/// <summary>
/// Opens this instance.
/// </summary>
public void Open()
{
bool registerContract = false;
ContractServiceSideDescriptor descriptor = null;
Dictionary <Type, ContractServiceSideDescriptor> contractDescriptors = ServiceBaseServices.ContractDescriptors;
lock (contractDescriptors)
{
if (contractDescriptors.ContainsKey(ServiceContract))
{
descriptor = contractDescriptors[ServiceContract];
}
else
{
descriptor = new ContractServiceSideDescriptor(ServiceContract, null);
registerContract = true;
}
}
if (!mControlServiceContract)
{
lock (descriptor)
{
if (mControlChannel)
{
if (!descriptor.ImplementationPerChannel.ContainsKey(mChannel.ChannelId))
{
descriptor.ImplementationPerChannel.Add(mChannel.ChannelId, mImplementationType);
}
}
}
}
if (registerContract)
{
lock (contractDescriptors)
{
if (!contractDescriptors.ContainsKey(ServiceContract))
{
contractDescriptors.Add(ServiceContract, descriptor);
}
}
}
}
/// <summary>
/// Gets the contract default.
/// </summary>
/// <param name="contractType">Type of the contract.</param>
/// <returns></returns>
public static ContractServiceSideDescriptor GetContractDefault(Type contractType)
{
DoInitializeCheck();
if (contractType == null)
{
ThrowHelper.ThrowArgumentNullException("contractType");
}
ContractServiceSideDescriptor result = null;
lock (mContractDescriptors)
{
if (mContractDescriptors.ContainsKey(contractType))
{
result = mContractDescriptors[contractType];
}
}
return(result);
}
/// <summary>
/// Closes this instance.
/// </summary>
public void Close()
{
ContractServiceSideDescriptor descriptor = null;
Dictionary <Type, ContractServiceSideDescriptor> contractDescriptors = ServiceBaseServices.ContractDescriptors;
lock (contractDescriptors)
{
if (mControlServiceContract)
{
contractDescriptors.Remove(ServiceContract);
}
else if (contractDescriptors.ContainsKey(ServiceContract) && mControlChannel)
{
descriptor = contractDescriptors[ServiceContract]; // csak akkor szedem elő, ha a channel kontrol is az Én felelősségem
}
}
if (descriptor != null)
{
lock (descriptor)
{
descriptor.ImplementationPerChannel.Remove(mChannel.ChannelId);
}
}
}
public static void Initialize()
{
if (!mInitialized)
{
Raiser.CallDelegatorBySync(EventInitialization, new object[] { null, new ServiceInitializationStateEventArgs(ServiceInitializationStateEnum.Before) });
ChannelServices.Initialize();
if (LOGGER.IsInfoEnabled)
{
LOGGER.Info("Initializing ServiceBase services.");
}
CategoryPropertyItem pi = ConfigurationAccessHelper.GetCategoryPropertyByPath(RemotingConfiguration.Settings.CategoryPropertyItems, "Services");
if (pi != null)
{
IEnumerator <CategoryPropertyItem> iterator = pi.GetEnumerator();
try
{
while (iterator.MoveNext())
{
pi = iterator.Current;
if (string.IsNullOrEmpty(pi.Id))
{
throw new InvalidConfigurationException("Contract type not definied. Empty item found in configuration.");
}
Type contractType = null;
Type defaultImplementationType = null;
try
{
contractType = TypeHelper.GetTypeFromString(pi.Id);
if (ContractDescriptors.ContainsKey(contractType))
{
throw new InvalidConfigurationException(String.Format("Duplicated contract type configuration found in services. Contract: {0}", contractType.FullName));
}
ContractValidator.ValidateContractIntegrity(contractType);
}
catch (Exception ex)
{
throw new InvalidConfigurationValueException(String.Format("Unable to resolve contract type: {0}", pi.Id), ex);
}
if (!string.IsNullOrEmpty(pi.EntryValue))
{
try
{
defaultImplementationType = TypeHelper.GetTypeFromString(pi.EntryValue);
if (!contractType.IsAssignableFrom(defaultImplementationType))
{
throw new InvalidProxyImplementationException(String.Format("Provided default implementation type '{0}' does not implement contract interface '{1}'.", defaultImplementationType.FullName, contractType.FullName));
}
ImplementationValidator.ValidateImplementationIntegrity(defaultImplementationType);
}
catch (Exception ex)
{
throw new InvalidConfigurationValueException(String.Format("Unable to resolve implementation type: {0}", pi.EntryValue), ex);
}
}
ContractServiceSideDescriptor descriptor = new ContractServiceSideDescriptor(contractType, defaultImplementationType);
IEnumerator <CategoryPropertyItem> channelIterator = pi.GetEnumerator();
while (channelIterator.MoveNext())
{
CategoryPropertyItem channelImplementationItem = channelIterator.Current;
if (string.IsNullOrEmpty(channelImplementationItem.Id))
{
throw new InvalidConfigurationValueException(String.Format("Channel identifier is missing from a configuration item of the contract '{0}'", pi.Id));
}
if (string.IsNullOrEmpty(channelImplementationItem.EntryValue))
{
throw new InvalidConfigurationValueException(String.Format("Implementation type is missing from a configuration item of the contract '{0}'", pi.Id));
}
if (!ChannelServices.IsChannelRegistered(channelImplementationItem.Id))
{
throw new InvalidConfigurationValueException(String.Format("Unregistered channel provided '{0}' in configuration section of the contract: {1}.", channelImplementationItem.Id, pi.Id));
}
Type type = null;
try
{
type = TypeHelper.GetTypeFromString(channelImplementationItem.EntryValue);
if (!contractType.IsAssignableFrom(type))
{
throw new InvalidProxyImplementationException(String.Format("Provided implementation type '{0}' does not implement contract interface '{1}'.", type.FullName, contractType.FullName));
}
ImplementationValidator.ValidateImplementationIntegrity(type);
}
catch (Exception ex)
{
throw new InvalidConfigurationValueException(String.Format("Unable to resolve non-default implementation type: {0} for contract: {1} for the channel: {2}", channelImplementationItem.EntryValue, pi.Id, channelImplementationItem.Id), ex);
}
if (descriptor.ImplementationPerChannel.ContainsKey(channelImplementationItem.Id))
{
throw new InvalidConfigurationException(String.Format("Duplicated channel identifier at contract '{0}'.", pi.Id));
}
descriptor.ImplementationPerChannel.Add(channelImplementationItem.Id, type);
}
ContractDescriptors.Add(contractType, descriptor);
}
ChannelServices.StartListeningChannels();
}
catch (Exception ex)
{
ContractDescriptors.Clear();
throw ex;
}
}
mInitialized = true;
if (LOGGER.IsInfoEnabled)
{
LOGGER.Info("ServiceBase services successfully initialized.");
}
Raiser.CallDelegatorBySync(EventInitialization, new object[] { null, new ServiceInitializationStateEventArgs(ServiceInitializationStateEnum.After) });
}
}
/// <summary>
/// Channels the receive message event handler.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="Forge.Net.Remoting.Channels.ReceiveMessageEventArgs"/> instance containing the event data.</param>
protected override void ChannelReceiveMessageEventHandler(object sender, ReceiveMessageEventArgs e)
{
if (LOGGER.IsDebugEnabled)
{
LOGGER.Debug(string.Format("Executing service method. SessionId: '{0}', {1}", e.SessionId, e.Message.ToString()));
}
Channel channel = (Channel)sender;
String sessionId = e.SessionId;
IMessage message = e.Message;
// Request és response message type jöhet
// Request mode
// Response mode
// Datagram mode - nincs válasz
if (message.MessageType == MessageTypeEnum.Acknowledge || message.MessageType == MessageTypeEnum.Response)
{
// HIBA: nem megfelelő üzenet típus (implementációs hiba?)
String errorMsg = String.Format("Invalid message type received: {0}. This may be an implementation error in the client proxy.", message.MessageType);
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(errorMsg);
}
}
else
{
RequestMessage rm = (RequestMessage)message;
if (MessageInvokeModeEnum.RequestCallback.Equals(rm.MessageInvokeMode))
{
return;
}
String contractName = rm.ContractName;
Type contractType = null;
try
{
contractType = TypeHelper.GetTypeFromString(contractName);
}
catch (Exception ex)
{
// HIBA: ez a típus nem szerepel a ClassPath-ban
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to resolve this type of contract '{0}'. Type has not found.", rm.ContractName), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
ContractServiceSideDescriptor descriptor = null;
lock (mContractDescriptors)
{
if (mContractDescriptors.ContainsKey(contractType))
{
descriptor = mContractDescriptors[contractType];
}
else
{
// HIBA: ez a contract nincs nyilvántartva
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("This type of contract '{0}' has not been registered.", contractType.FullName)), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
}
Type implType = null;
lock (descriptor)
{
if (descriptor.ImplementationPerChannel.ContainsKey(channel.ChannelId))
{
implType = descriptor.ImplementationPerChannel[channel.ChannelId];
}
else if (descriptor.DefaultImplementationType != null)
{
implType = descriptor.DefaultImplementationType;
}
else
{
// HIBA: a contract a megadott channel-hez nem definiált implementációs típust
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to find implementation for this type of contract '{0}' and channel id: '{1}'.", contractType.FullName, channel.ChannelId)), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
}
Object instance = null;
WellKnownObjectModeEnum objectMode = WellKnownObjectModeEnum.PerSession;
ContractValidator.GetWellKnownObjectMode(contractType, out objectMode);
if (objectMode == WellKnownObjectModeEnum.PerSession)
{
// constructor keresése a Channel és String paraméterlistával, ha még ehhez a session-hez nem létezik instance
long proxyId = -1;
try
{
proxyId = (long)rm.Context[ProxyBase.PROXY_ID];
}
catch (Exception ex)
{
// HIBA: hiányzó vagy rossz formátumú ProxyId
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException("Unable to parse PROXY_ID from call context.", ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
lock (mContractAndInstancePerSessionAndChannel)
{
foreach (ContractAndInstanceStruct s in mContractAndInstancePerSessionAndChannel)
{
if (s.Channel.Equals(channel) && s.ContractType.Equals(contractType) && s.SessionId.Equals(sessionId) && s.ImplType.Equals(implType) && s.ProxyId == proxyId)
{
instance = s.Instance;
break;
}
}
if (instance == null)
{
// még nem létezik a proxy példány, létre kell hozni
try
{
ConstructorInfo c = implType.GetConstructor(new Type[] { typeof(Channel), typeof(String) });
instance = c.Invoke(new object[] { channel, sessionId });
RegisterProxy(channel, contractType, implType, sessionId, proxyId, (ProxyBase)instance);
}
catch (Exception ex)
{
// HIBA: sikertelen az instance létrehozása
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to instantiate type '{0}'. Public constructor is not accessible/found with parameter types: '{1}' and '{2}'.", implType.FullName, typeof(Channel).FullName, typeof(String).FullName), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
}
}
}
else if (objectMode == WellKnownObjectModeEnum.Singleton)
{
// üres constructor kell, ha még nem létezik az instance
lock (mSingletonContainer)
{
if (mSingletonContainer.ContainsKey(implType))
{
instance = mSingletonContainer[implType];
}
else
{
try
{
// még nem volt létrehozva
instance = implType.GetConstructor(new Type[] { }).Invoke(null);
mSingletonContainer.Add(implType, instance);
}
catch (Exception ex)
{
// HIBA: sikertelen az instance létrehozása
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to instantiate type '{0}'. Public empty constructor is not accessible/found.", implType.FullName), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
}
}
}
else
{
// üres constructor kell, példányosítás mindig megtörténik
try
{
// még nem volt létrehozva
instance = implType.GetConstructor(new Type[] { }).Invoke(null);
}
catch (Exception ex)
{
// HIBA: sikertelen az instance létrehozása
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to instantiate type '{0}'. Public empty constructor is not accessible/found.", implType.FullName), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
}
// meg van az instance, lehet reflection-nel hívni a metódusára
Type[] methodParamTypes = null;
Object[] paramValues = null;
if (rm.MethodParameters != null)
{
methodParamTypes = new Type[rm.MethodParameters.Length];
paramValues = new Object[rm.MethodParameters.Length];
for (int i = 0; i < rm.MethodParameters.Length; i++)
{
try
{
methodParamTypes[i] = TypeHelper.GetTypeFromString(rm.MethodParameters[i].ClassName);
}
catch (Exception ex)
{
// HIBA: a paraméter egy típusa nem szerepel a Domainben, így nem feloldható, ismeretlen
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to resolve parameter type '{0}'. Type has not found.", rm.MethodParameters[i].ClassName), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
paramValues[i] = rm.MethodParameters[i].Value;
}
}
MethodInfo m = null;
try
{
m = FindMethod(implType, rm.MethodName, methodParamTypes);
}
catch (Exception ex)
{
// HIBA: a metódus név és paraméterlista alapján nem található
try
{
SendResponse(channel, sessionId, rm, typeof(void), null, new MethodInvocationException(String.Format("Unable to find method '{0}' with parameter list: '{1}'.", rm.MethodName, methodParamTypes), ex), channel.DefaultErrorResponseTimeout);
}
catch (Exception innerEx)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, innerEx.Message));
}
}
return;
}
long returnTimeout = OperationContractAttribute.DEFAULT_METHOD_TIMEOUT;
if (rm.MessageType == MessageTypeEnum.Request)
{
MethodParameter[] mps = null;
if (m.GetParameters().Length > 0)
{
mps = new MethodParameter[m.GetParameters().Length];
for (int i = 0; i < m.GetParameters().Length; i++)
{
ParameterInfo pi = m.GetParameters()[i];
mps[i] = new MethodParameter(i, string.Format("{0}, {1}", pi.ParameterType.FullName, new AssemblyName(pi.ParameterType.Assembly.FullName).Name), null);
}
}
returnTimeout = ServiceBase.GetTimeoutByMethod(contractType, m.Name, mps, MethodTimeoutEnum.ReturnTimeout);
lock (mCallContextForReply)
{
mCallContextForReply.Add(Thread.CurrentThread, new CallContextForReply(channel, sessionId, rm, m.ReturnType, returnTimeout));
}
}
// visszatérési értéket fogadni
Exception methodException = null;
Object result = null;
try
{
result = m.Invoke(instance, paramValues);
}
catch (Exception ex)
{
if (LOGGER.IsDebugEnabled)
{
LOGGER.Debug(string.Format("Service method threw an exception. SessionId: '{0}', {1}", e.SessionId, e.Message.ToString()), ex);
}
methodException = ex;
}
// válaszüzenet küldése
bool needToSendResponse = false;
Type returnType = typeof(void);
if (rm.MessageType == MessageTypeEnum.Request)
{
lock (mCallContextForReply)
{
if (mCallContextForReply.ContainsKey(Thread.CurrentThread))
{
needToSendResponse = true;
returnType = mCallContextForReply[Thread.CurrentThread].ReturnType;
}
}
}
if (needToSendResponse)
{
try
{
SendResponse(channel, sessionId, rm, returnType, result, methodException, returnTimeout);
}
catch (Exception ex)
{
// válaszüzenet küldése sikertelen
if (LOGGER.IsErrorEnabled)
{
LOGGER.Error(String.Format(AUTO_SEND_REPLY_ERROR_MSG, ex.Message));
}
}
finally
{
lock (mCallContextForReply)
{
mCallContextForReply.Remove(Thread.CurrentThread);
}
}
}
// saját tulajdonú instance, ami implementálja az IDisposable interface-t és SingleCall, akkor ráhívok a Dispose() metódusra
if (objectMode == WellKnownObjectModeEnum.SingleCall && instance is IDisposable)
{
((IDisposable)instance).Dispose();
}
}
}
/// <summary>
/// Prevents a default instance of the <see cref="ServiceFactory<TContract>"/> class from being created.
/// </summary>
/// <param name="channelId">The channel id.</param>
/// <param name="implementationType">Type of the implementation.</param>
private ServiceFactory(String channelId, Type implementationType)
{
if (string.IsNullOrEmpty(channelId))
{
ThrowHelper.ThrowArgumentNullException("channelId");
}
if (implementationType == null)
{
ThrowHelper.ThrowArgumentNullException("implementationType");
}
if (!ServiceContract.IsAssignableFrom(implementationType))
{
throw new ArgumentException("Provided implementation does not implements the contract interface.", "implementationType");
}
ContractValidator.ValidateContractIntegrity(ServiceContract);
ImplementationValidator.ValidateImplementationIntegrity(implementationType);
this.mChannel = ChannelServices.GetChannelById(channelId);
if (this.mChannel == null)
{
throw new ChannelNotFoundException(channelId);
}
this.mImplementationType = implementationType;
// adatstruktúra adminisztrációja
// egy factory csak azt adhatja hozzá, ami nincs és csak azt veheti el, ami még nem volt.
ContractServiceSideDescriptor descriptor = null;
Dictionary <Type, ContractServiceSideDescriptor> contractDescriptors = ServiceBaseServices.ContractDescriptors;
lock (contractDescriptors)
{
if (contractDescriptors.ContainsKey(ServiceContract))
{
// ismert contract
descriptor = contractDescriptors[ServiceContract];
}
else
{
// ilyen contract még nincs
mControlServiceContract = true;
mControlChannel = true;
}
}
if (descriptor != null)
{
lock (descriptor)
{
if (!descriptor.ImplementationPerChannel.ContainsKey(channelId))
{
mControlChannel = true;
}
else
{
if (descriptor.ImplementationPerChannel.ContainsKey(channelId))
{
// ehhez a csatornához és contracthoz már egy másik implementáció van rendelve
Type currentImplType = descriptor.ImplementationPerChannel[channelId];
if (!currentImplType.Equals(implementationType))
{
throw new ArgumentException(String.Format("Unable to register provided implementation type: '{0}'. An other implementation type '{1}' has already definied for channel '{2}' and contract '{3}'.", implementationType.FullName, currentImplType.FullName, channelId, ServiceContract.FullName));
}
}
}
}
}
ChannelServices.UnregisterChannelEvent += new EventHandler <ChannelRegistrationEventArgs>(ChannelUnregisteredEventHandler);
}
