protected override MessageBase CopyImpl(MessageBase clone)
{
// Instantiate the clone, if a derived type hasn't already.
if (clone == null)
{
clone = new AcknowledgeMessage();
}
return(base.CopyImpl(clone));
}
public override object ServiceMessage(IMessage message) {
IMessage responseMessage = null;
CommandMessage commandMessage = message as CommandMessage;
if (commandMessage != null) {
switch (commandMessage.operation) {
case CommandMessage.LoginOperation:
IPrincipal principal = null;
try {
principal = Authenticate(message);
} catch (SecurityException) {
throw;
} catch (UnauthorizedAccessException) {
throw;
} catch (Exception exception) {
string msg = __Res.GetString(__Res.Security_AuthenticationFailed);
if (log.IsErrorEnabled)
log.Error(msg, exception);
throw new SecurityException(msg, exception);
}
if (principal == null) {
string msg = __Res.GetString(__Res.Security_AuthenticationFailed);
throw new SecurityException(msg);
}
responseMessage = new AcknowledgeMessage();
responseMessage.body = "success";
break;
case CommandMessage.LogoutOperation:
//TODO: Logs the user out of the destination. Logging out of a destination applies to everything connected using the same ChannelSet as specified in the server configuration.
//For example, if you're connected over the my-rtmp channel and you log out using one of your RPC components, anything that was
//connected over the same ChannelSet is logged out.
_messageBroker.LoginManager.Logout();
responseMessage = new AcknowledgeMessage();
responseMessage.body = "success";
break;
}
}
return responseMessage;
}
private void HandleFlexClientStreamingOpenRequest(HttpRequest request, HttpResponse response, IClient flexClient) {
Session session = FluorineContext.Current.Session as Session;
if (session == null) {
string msg = string.Format("Cannot grant streaming connection when ASP.NET session state is disabled", this.Id);
if (log.IsWarnEnabled)
log.Warn(msg);
try {
HandleBadRequest(msg, HttpContext.Current.Response);
} catch (HttpException) { }
return;
}
if (!_canStream || !session.CanStream) {
string msg = string.Format("Cannot grant streaming connection, limit has been reached", this.Id);
try {
HandleBadRequest(msg, HttpContext.Current.Response);
} catch (HttpException) { }
return;
}
bool canStream = false;
lock (this.SyncRoot) {
_streamingClientsCount.Increment();
if (_streamingClientsCount.Value == this.MaxStreamingClients) {
canStream = true; // This thread got the last spot.
_canStream = false;
} else if (_streamingClientsCount.Value > this.MaxStreamingClients) {
canStream = false; // This thread lost the last spot.
_streamingClientsCount.Decrement();// We're not going to grant the streaming right to the client.
} else {
// Allow this thread to stream.
canStream = true;
}
}
if (!canStream) {
string msg = string.Format("Cannot service streaming request, max-streaming-clients reached in endpoint {0}", this.Id);
try {
HandleBadRequest(msg, HttpContext.Current.Response);
} catch (HttpException) { }
return;
}
UserAgent userAgent = this.ChannelDefinition.Properties.UserAgentSettings[request.Browser.Browser];
if (userAgent != null) {
lock (session.SyncRoot) {
session.MaxConnectionsPerSession = userAgent.MaxStreamingConnectionsPerSession;
}
}
lock (session.SyncRoot) {
session.StreamingConnectionsCount++;
if (session.StreamingConnectionsCount == session.MaxConnectionsPerSession) {
canStream = true; // This thread got the last spot in the session.
session.CanStream = false;
} else if (session.StreamingConnectionsCount > session.MaxConnectionsPerSession) {
canStream = false;
session.StreamingConnectionsCount--;
_streamingClientsCount.Decrement();
} else {
canStream = true;
}
}
if (!canStream) {
string msg = string.Format("Cannot grant streaming connection, limit has been reached", this.Id);
try {
HandleBadRequest(msg, HttpContext.Current.Response);
} catch (HttpException) { }
return;
}
EndpointPushNotifier notifier = null;
try {
response.ContentType = ContentType.AMF;
response.AppendHeader("Cache-Control", "no-cache");
response.AppendHeader("Pragma", "no-cache");
response.AppendHeader("Connection", "close");
//response.AppendHeader("Transfer-Encoding", "chunked");
response.Flush();
// Setup for specific user agents.
byte[] kickStartBytesToStream = null;
int kickStartBytes = userAgent != null ? userAgent.KickstartBytes : 0;
if (kickStartBytes > 0) {
// The minimum number of actual bytes that need to be sent to kickstart, taking into account transfer-encoding overhead.
try {
int chunkLengthHeaderSize = System.Text.Encoding.ASCII.GetBytes(System.Convert.ToString(kickStartBytes, 0x10)).Length; //System.Text.ASCIIEncoding.ASCII.GetBytes(kickStartBytes.ToString("X")).Length;
int chunkOverhead = chunkLengthHeaderSize + 4; // 4 for the 2 wrapping CRLF tokens.
int minimumKickstartBytes = kickStartBytes - chunkOverhead;
kickStartBytesToStream = new byte[(minimumKickstartBytes > 0) ? minimumKickstartBytes : kickStartBytes];
} catch {
kickStartBytesToStream = new byte[kickStartBytes];
}
}
if (kickStartBytesToStream != null) {
StreamChunk(kickStartBytesToStream, response);
}
try {
notifier = new EndpointPushNotifier(this, flexClient);
lock (_currentStreamingRequests.SyncRoot) {
_currentStreamingRequests.Add(notifier.Id, notifier);
}
// Push down an acknowledgement for the 'connect' request containing the unique id for this specific stream.
AcknowledgeMessage connectAck = new AcknowledgeMessage();
connectAck.body = notifier.Id;
connectAck.correlationId = OpenCommand;
StreamMessage(connectAck, response);
} catch (MessageException) {
}
if (log.IsDebugEnabled) {
string msg = string.Format("Start streaming for endpoint with id {0} and client with id {1}", this.Id, flexClient.Id);
log.Debug(msg);
}
int serverToClientHeartbeatMillis = this.ChannelDefinition.Properties.ServerToClientHeartbeatMillis >= 0 ? this.ChannelDefinition.Properties.ServerToClientHeartbeatMillis : 0;
serverToClientHeartbeatMillis = 100;
while (!notifier.IsClosed) {
IList messages = notifier.GetPendingMessages();
StreamMessages(messages, response);
lock (notifier.SyncRoot) {
Monitor.Wait(notifier.SyncRoot, serverToClientHeartbeatMillis);
messages = notifier.GetPendingMessages();
// If there are no messages to send to the client, send a 0
// byte as a heartbeat to make sure the client is still valid.
if ((messages == null || messages.Count == 0) && serverToClientHeartbeatMillis > 0) {
try {
StreamChunk(Heartbeat, response);
response.Flush();
} catch (HttpException) {
break;
} catch (IOException) {
break;
}
} else {
StreamMessages(messages, response);
}
}
}
// Terminate the response.
StreamChunk(null, response);
if (log.IsDebugEnabled) {
string msg = string.Format("Releasing streaming connection for endpoint with id {0} and and client with id {1}", this.Id, flexClient.Id);
log.Debug(msg);
}
} catch (IOException ex)//HttpException?
{
if (log.IsWarnEnabled)
log.Warn("Streaming thread for endpoint with id " + this.Id + " is closing connection due to an IO error.", ex);
} catch (Exception ex) {
if (log.IsErrorEnabled)
log.Error("Streaming thread for endpoint with id " + this.Id + " is closing connection due to an error.", ex);
} finally {
if (notifier != null && _currentStreamingRequests != null) {
if (_currentStreamingRequests != null) {
lock (_currentStreamingRequests.SyncRoot) {
_currentStreamingRequests.Remove(notifier.Id);
}
}
notifier.Close();
}
_streamingClientsCount.Decrement();
lock (session.SyncRoot) {
session.StreamingConnectionsCount--;
session.CanStream = session.StreamingConnectionsCount < session.MaxConnectionsPerSession;
}
}
}
/// <summary>
/// Handles a message routed to the service by the MessageBroker.
/// </summary>
/// <param name="message">The message that should be handled by the service.</param>
/// <returns>The result of the message processing.</returns>
public override object ServiceMessage(IMessage message) {
CommandMessage commandMessage = message as CommandMessage;
MessageDestination messageDestination = GetDestination(message) as MessageDestination;
if (commandMessage != null) {
string clientId = commandMessage.clientId as string;
MessageClient messageClient = messageDestination.SubscriptionManager.GetSubscriber(clientId);
AcknowledgeMessage acknowledgeMessage = null;
switch (commandMessage.operation) {
case CommandMessage.SubscribeOperation:
if (messageClient == null) {
if (clientId == null)
clientId = Guid.NewGuid().ToString("D");
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageServiceSubscribe, messageDestination.Id, clientId));
string endpointId = commandMessage.GetHeader(MessageBase.EndpointHeader) as string;
if (_messageBroker.GetEndpoint(endpointId) == null) {
ServiceException serviceException = new ServiceException("Endpoint was not specified");
serviceException.FaultCode = "Server.Processing.MissingEndpoint";
throw serviceException;
}
commandMessage.clientId = clientId;
if (messageDestination.ServiceAdapter != null && messageDestination.ServiceAdapter.HandlesSubscriptions) {
try {
acknowledgeMessage = messageDestination.ServiceAdapter.Manage(commandMessage) as AcknowledgeMessage;
} catch (MessageException me) {
acknowledgeMessage = me.GetErrorMessage();
//Leave, do not subscribe
return acknowledgeMessage;
} catch (Exception ex) {
//Guard against service adapter failure
acknowledgeMessage = ErrorMessage.GetErrorMessage(commandMessage, ex);
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.ServiceAdapter_ManageFail, this.id, messageDestination.Id, commandMessage), ex);
//Leave, do not subscribe
return acknowledgeMessage;
}
}
Subtopic subtopic = null;
Selector selector = null;
if (commandMessage.headers != null) {
if (commandMessage.headers.ContainsKey(CommandMessage.SelectorHeader)) {
selector = Selector.CreateSelector(commandMessage.headers[CommandMessage.SelectorHeader] as string);
}
if (commandMessage.headers.ContainsKey(AsyncMessage.SubtopicHeader)) {
subtopic = new Subtopic(commandMessage.headers[AsyncMessage.SubtopicHeader] as string);
}
}
IClient client = FluorineContext.Current.Client;
client.Renew();
messageClient = messageDestination.SubscriptionManager.AddSubscriber(clientId, endpointId, subtopic, selector);
if (acknowledgeMessage == null)
acknowledgeMessage = new AcknowledgeMessage();
acknowledgeMessage.clientId = clientId;
} else {
acknowledgeMessage = new AcknowledgeMessage();
acknowledgeMessage.clientId = clientId;
}
return acknowledgeMessage;
case CommandMessage.UnsubscribeOperation:
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageServiceUnsubscribe, messageDestination.Id, clientId));
if (messageDestination.ServiceAdapter != null && messageDestination.ServiceAdapter.HandlesSubscriptions) {
try {
acknowledgeMessage = messageDestination.ServiceAdapter.Manage(commandMessage) as AcknowledgeMessage;
} catch (MessageException me) {
acknowledgeMessage = me.GetErrorMessage();
} catch (Exception ex) {
//Guard against service adapter failure
acknowledgeMessage = ErrorMessage.GetErrorMessage(commandMessage, ex);
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.ServiceAdapter_ManageFail, this.id, messageDestination.Id, commandMessage), ex);
}
}
if (messageClient != null)
messageDestination.SubscriptionManager.RemoveSubscriber(messageClient);
if (acknowledgeMessage == null)
acknowledgeMessage = new AcknowledgeMessage();
return acknowledgeMessage;
case CommandMessage.PollOperation: {
if (messageClient == null) {
ServiceException serviceException = new ServiceException(string.Format("MessageClient is not subscribed to {0}", commandMessage.destination));
serviceException.FaultCode = "Server.Processing.NotSubscribed";
throw serviceException;
}
IClient client = FluorineContext.Current.Client;
client.Renew();
try {
acknowledgeMessage = messageDestination.ServiceAdapter.Manage(commandMessage) as AcknowledgeMessage;
} catch (MessageException me) {
acknowledgeMessage = me.GetErrorMessage();
} catch (Exception ex) {
//Guard against service adapter failure
acknowledgeMessage = ErrorMessage.GetErrorMessage(commandMessage, ex);
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.ServiceAdapter_ManageFail, this.id, messageDestination.Id, commandMessage), ex);
}
if (acknowledgeMessage == null)
acknowledgeMessage = new AcknowledgeMessage();
return acknowledgeMessage;
}
case CommandMessage.ClientPingOperation:
if (messageDestination.ServiceAdapter != null && messageDestination.ServiceAdapter.HandlesSubscriptions) {
try {
messageDestination.ServiceAdapter.Manage(commandMessage);
} catch (MessageException) {
return false;
} catch (Exception ex) {
//Guard against service adapter failure
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.ServiceAdapter_ManageFail, this.id, messageDestination.Id, commandMessage), ex);
return false;
}
}
return true;
default:
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageServiceUnknown, commandMessage.operation, messageDestination.Id));
try {
acknowledgeMessage = messageDestination.ServiceAdapter.Manage(commandMessage) as AcknowledgeMessage;
} catch (MessageException me) {
acknowledgeMessage = me.GetErrorMessage();
} catch (Exception ex) {
//Guard against service adapter failure
acknowledgeMessage = ErrorMessage.GetErrorMessage(commandMessage, ex);
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.ServiceAdapter_ManageFail, this.id, messageDestination.Id, commandMessage), ex);
}
if (acknowledgeMessage == null)
acknowledgeMessage = new AcknowledgeMessage();
return acknowledgeMessage;
}
} else {
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageServiceRoute, messageDestination.Id, message.clientId));
if (FluorineContext.Current != null && FluorineContext.Current.Client != null)//Not set when user code initiates push
{
IClient client = FluorineContext.Current.Client;
client.Renew();
}
object result = messageDestination.ServiceAdapter.Invoke(message);
return result;
}
}
protected override MessageBase CopyImpl(MessageBase clone) {
// Instantiate the clone, if a derived type hasn't already.
if (clone == null)
clone = new AcknowledgeMessage();
return base.CopyImpl(clone);
}
public override IMessage ServiceMessage(IMessage message) {
if (FluorineContext.Current.Client != null)
FluorineContext.Current.Client.Renew();
if (message is CommandMessage) {
CommandMessage commandMessage = message as CommandMessage;
switch (commandMessage.operation) {
case CommandMessage.PollOperation: {
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.Endpoint_HandleMessage, this.Id, message.ToString()));
if (FluorineContext.Current.Client != null)
FluorineContext.Current.Client.Renew();
//IMessage[] messages = null;
IList messages = null;
_waitingPollRequests.Increment();
int waitIntervalMillis = this.ChannelDefinition.Properties.WaitIntervalMillis != -1 ? this.ChannelDefinition.Properties.WaitIntervalMillis : 60000;// int.MaxValue;
if (commandMessage.HeaderExists(CommandMessage.FluorineSuppressPollWaitHeader))
waitIntervalMillis = 0;
//If async handling was not set long polling is not supported
if (!FluorineConfiguration.Instance.FluorineSettings.Runtime.AsyncHandler)
waitIntervalMillis = 0;
if (this.ChannelDefinition.Properties.MaxWaitingPollRequests <= 0 || _waitingPollRequests.Value >= this.ChannelDefinition.Properties.MaxWaitingPollRequests)
waitIntervalMillis = 0;
if (message.destination != null && message.destination != string.Empty) {
string clientId = commandMessage.clientId as string;
MessageDestination messageDestination = this.GetMessageBroker().GetDestination(message.destination) as MessageDestination;
MessageClient client = messageDestination.SubscriptionManager.GetSubscriber(clientId);
client.Renew();
//messages = client.GetPendingMessages();
} else {
//if (FluorineContext.Current.Client != null)
// messages = FluorineContext.Current.Client.GetPendingMessages(waitIntervalMillis);
}
if (FluorineContext.Current.Client != null) {
IEndpointPushHandler handler = FluorineContext.Current.Client.GetEndpointPushHandler(this.Id);
if (handler != null)
messages = handler.GetPendingMessages();
if (messages == null) {
lock (handler.SyncRoot) {
Monitor.Wait(handler.SyncRoot, waitIntervalMillis);
}
messages = handler.GetPendingMessages();
}
}
_waitingPollRequests.Decrement();
IMessage response = null;
if (messages == null || messages.Count == 0)
response = new AcknowledgeMessage();
else {
CommandMessage resultMessage = new CommandMessage();
resultMessage.operation = CommandMessage.ClientSyncOperation;
resultMessage.body = messages;
response = resultMessage;
}
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.Endpoint_Response, this.Id, response.ToString()));
return response;
}
case CommandMessage.SubscribeOperation: {
/*
if (FluorineContext.Current.Client == null)
FluorineContext.Current.SetCurrentClient(this.GetMessageBroker().ClientRegistry.GetClient(message));
RemotingConnection remotingConnection = null;
foreach (IConnection connection in FluorineContext.Current.Client.Connections)
{
if (connection is RemotingConnection)
{
remotingConnection = connection as RemotingConnection;
break;
}
}
if (remotingConnection == null)
{
remotingConnection = new RemotingConnection(this, null, FluorineContext.Current.Client.Id, null);
FluorineContext.Current.Client.Renew(this.ClientLeaseTime);
remotingConnection.Initialize(FluorineContext.Current.Client);
}
FluorineWebContext webContext = FluorineContext.Current as FluorineWebContext;
webContext.SetConnection(remotingConnection);
*/
if (this.ChannelDefinition.Properties.IsPollingEnabled) {
//Create and forget, client will close the notifier
IEndpointPushHandler handler = FluorineContext.Current.Client.GetEndpointPushHandler(this.Id);
if (handler == null)
handler = new EndpointPushNotifier(this, FluorineContext.Current.Client);
/*
lock (_endpointPushHandlers.SyncRoot)
{
_endpointPushHandlers.Add(notifier.Id, notifier);
}
*/
}
}
break;
case CommandMessage.DisconnectOperation: {
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.Endpoint_HandleMessage, this.Id, message.ToString()));
if (FluorineContext.Current.Client != null && FluorineContext.Current.Client.IsValid) {
IList messageClients = FluorineContext.Current.Client.MessageClients;
if (messageClients != null) {
foreach (MessageClient messageClient in messageClients) {
messageClient.Invalidate();
}
}
FluorineContext.Current.Client.Invalidate();
}
if (FluorineContext.Current.Session != null) {
FluorineContext.Current.Session.Invalidate();
}
//Disconnect command is received from a client channel.
//The response returned by this method is not guaranteed to get to the client, which is free to terminate its physical connection at any point.
IMessage response = new AcknowledgeMessage();
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.Endpoint_Response, this.Id, response.ToString()));
return response;
}
}
}
return base.ServiceMessage(message);
}
/// <summary>
/// Call this method in order to send a message from your code into the message routing system.
/// The message is routed to a service that is defined to handle messages of this type.
/// Once the service is identified, the destination property of the message is used to find a destination configured for that service.
/// The adapter defined for that destination is used to handle the message.
/// </summary>
/// <param name="message">The message to be routed to a service.</param>
/// <param name="endpoint">This can identify the endpoint that is sending the message but it is currently not used so you may pass in null.</param>
/// <returns>The result of the message routing.</returns>
internal IMessage RouteMessage(IMessage message, IEndpoint endpoint) {
IService service = null;
object result = null;
IMessage responseMessage = null;
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageBroker_RoutingMessage, message.ToString()));
CommandMessage commandMessage = message as CommandMessage;
if (commandMessage != null && (commandMessage.operation == CommandMessage.LoginOperation || commandMessage.operation == CommandMessage.LogoutOperation))//Login, Logout
{
try {
service = GetService(AuthenticationService.ServiceId);
result = service.ServiceMessage(commandMessage);
responseMessage = result as IMessage;
} catch (UnauthorizedAccessException uae) {
if (log.IsDebugEnabled)
log.Debug(uae.Message);
responseMessage = ErrorMessage.GetErrorMessage(message, uae);
} catch (SecurityException exception) {
if (log.IsDebugEnabled)
log.Debug(exception.Message);
responseMessage = ErrorMessage.GetErrorMessage(message, exception);
} catch (Exception exception) {
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.MessageBroker_RoutingError), exception);
responseMessage = ErrorMessage.GetErrorMessage(message, exception);
}
} else if (commandMessage != null && commandMessage.operation == CommandMessage.ClientPingOperation) {
responseMessage = new AcknowledgeMessage();
responseMessage.body = true;
} else {
//The only case when context is not set should be when one starts a new thread in the backend
//if( FluorineContext.Current != null )
// FluorineContext.Current.RestorePrincipal(this.LoginCommand);
_loginManager.RestorePrincipal();
service = GetService(message);
if (service != null) {
try {
service.CheckSecurity(message);
result = service.ServiceMessage(message);
} catch (UnauthorizedAccessException uae) {
if (log.IsDebugEnabled)
log.Debug(uae.Message);
result = ErrorMessage.GetErrorMessage(message, uae);
} catch (SecurityException exception) {
if (log.IsDebugEnabled)
log.Debug(exception.Message);
result = ErrorMessage.GetErrorMessage(message, exception);
} catch (ServiceException exception) {
if (log.IsDebugEnabled)
log.Debug(exception.Message);
result = ErrorMessage.GetErrorMessage(message, exception);
} catch (Exception exception) {
if (log.IsErrorEnabled)
log.Error(exception.Message, exception);
result = ErrorMessage.GetErrorMessage(message, exception);
}
} else {
string msg = __Res.GetString(__Res.Destination_NotFound, message.destination);
if (log.IsErrorEnabled)
log.Error(msg);
result = ErrorMessage.GetErrorMessage(message, new FluorineException(msg));
}
if (!(result is IMessage)) {
responseMessage = new AcknowledgeMessage();
responseMessage.body = result;
} else
responseMessage = result as IMessage;
}
if (responseMessage is AsyncMessage) {
((AsyncMessage)responseMessage).correlationId = message.messageId;
}
responseMessage.destination = message.destination;
responseMessage.clientId = message.clientId;
//Debug
if (message.HeaderExists(AMFHeader.DebugHeader)) {
log.Debug("MessageBroker processing debug header");
ArrayList traceStack = NetDebug.GetTraceStack();
responseMessage.SetHeader(AMFHeader.DebugHeader, traceStack.ToArray(typeof(object)) as object[]);
NetDebug.Clear();
}
//The only case when we do not have context should be when the server side initiates a push
if (FluorineContext.Current != null && FluorineContext.Current.Client != null)
responseMessage.SetHeader(MessageBase.FlexClientIdHeader, FluorineContext.Current.Client.Id);
if (log.IsDebugEnabled)
log.Debug(__Res.GetString(__Res.MessageBroker_Response, responseMessage.ToString()));
return responseMessage;
}
public override object ServiceMessage(IMessage message) {
CommandMessage commandMessage = message as CommandMessage;
if (commandMessage != null) {
//Sub/unsub handled by base class
return base.ServiceMessage(commandMessage);
} else {
AsyncMessage responseMessage = null;
DataMessage dataMessage = message as DataMessage;
DataDestination dataDestination = this.GetDestination(dataMessage) as DataDestination;
if (dataDestination.SubscriptionManager.GetSubscriber(dataMessage.clientId as string) == null) {
//Subscribe here as DS doesn't send a separate subscribe command
CommandMessage commandMessageSubscribe = new CommandMessage();
commandMessageSubscribe.destination = dataDestination.Id;
commandMessageSubscribe.operation = CommandMessage.SubscribeOperation;
commandMessageSubscribe.clientId = dataMessage.clientId as string;
string endpointId = dataMessage.GetHeader(MessageBase.EndpointHeader) as string;
commandMessageSubscribe.headers[MessageBase.EndpointHeader] = endpointId;
string flexClientIdHeader = dataMessage.GetHeader(MessageBase.FlexClientIdHeader) as string;
if (flexClientIdHeader != null)
commandMessageSubscribe.headers[MessageBase.FlexClientIdHeader] = flexClientIdHeader;
IEndpoint endpoint = GetMessageBroker().GetEndpoint(endpointId);
endpoint.ServiceMessage(commandMessageSubscribe);//route through the endpoint again
//base.ServiceMessage(commandMessageSubscribe);
}
switch (dataMessage.operation) {
case DataMessage.FillOperation:
responseMessage = ExecuteFillOperation(message);
break;
case DataMessage.GetOperation:
responseMessage = ExecuteGetOperation(message);
break;
case DataMessage.BatchedOperation:
case DataMessage.MultiBatchOperation:
case DataMessage.TransactedOperation:
responseMessage = ExecuteMultiBatchOperation(message);
break;
case DataMessage.PageItemsOperation:
responseMessage = ExecutePageItemsOperation(message);
break;
case DataMessage.PageOperation:
responseMessage = ExecutePageOperation(message);
break;
case DataMessage.ReleaseCollectionOperation:
responseMessage = ExecuteReleaseCollectionOperation(message);
break;
case DataMessage.GetSequenceIdOperation:
responseMessage = ExecuteGetSequenceIdOperation(message);
break;
case DataMessage.ReleaseItemOperation:
responseMessage = ExecuteReleaseItemOperation(message);
break;
default:
if (log.IsErrorEnabled)
log.Error(__Res.GetString(__Res.DataService_Unknown, dataMessage.operation));
responseMessage = new AcknowledgeMessage();
break;
}
responseMessage.clientId = message.clientId;
responseMessage.correlationId = message.messageId;
//Dump();
return responseMessage;
}
}
private AcknowledgeMessage ExecuteMultiBatchOperation(IMessage message) {
//May contain multiple batched, create, update or delete operations that involve
//more than one destination, that is, more than one remote adapter
AcknowledgeMessage responseMessage = null;
DataMessage dataMessage = message as DataMessage;
IList messages = dataMessage.body as IList;
DataServiceTransaction dataServiceTransaction = DataServiceTransaction.Begin(this);
dataServiceTransaction.ClientId = message.clientId as string;
//correlate al generated messages
dataServiceTransaction.CorrelationId = message.messageId;
string currentDestination = null;
ArrayList currentMessageBatch = new ArrayList();
for (int i = 0; i < messages.Count; i++) {
DataMessage batchMessage = messages[i] as DataMessage;
string destination = batchMessage.destination;
DataDestination dataDestination = GetDestination(batchMessage) as DataDestination;
if (currentDestination != null && destination != currentDestination &&
currentMessageBatch.Count > 0) {
MessageBatch messageBatch = ServiceBatch(message, currentMessageBatch);
dataServiceTransaction.AddProcessedMessageBatch(messageBatch);
currentMessageBatch = new ArrayList();
}
currentMessageBatch.Add(batchMessage);
currentDestination = destination;
if (batchMessage is UpdateCollectionMessage)
dataServiceTransaction.AddClientUpdateCollection(batchMessage as UpdateCollectionMessage);
}
if (currentMessageBatch.Count > 0) {
MessageBatch messageBatch = ServiceBatch(message, currentMessageBatch);
dataServiceTransaction.AddProcessedMessageBatch(messageBatch);
}
dataServiceTransaction.Commit();
IList outgoingMessages = dataServiceTransaction.GetOutgoingMessages();
responseMessage = new AcknowledgeMessage();
object[] result = new object[outgoingMessages.Count];
outgoingMessages.CopyTo(result, 0);
responseMessage.body = result;//outgoingMessages.ToArray(typeof(object));
return responseMessage;
}
private AcknowledgeMessage ExecuteReleaseItemOperation(IMessage message) {
AcknowledgeMessage responseMessage = new AcknowledgeMessage();
DataMessage dataMessage = message as DataMessage;
DataDestination dataDestination = this.GetDestination(dataMessage) as DataDestination;
dataDestination.SequenceManager.ReleaseItemOperation(dataMessage);
return responseMessage;
}
private AcknowledgeMessage ExecuteGetOperation(IMessage message) {
DataMessage dataMessage = message as DataMessage;
AcknowledgeMessage responseMessage = null;
DataDestination dataDestination = this.GetDestination(dataMessage) as DataDestination;
object result = dataDestination.ServiceAdapter.Invoke(message);
if (result == null)
responseMessage = new AcknowledgeMessage();
else {
ArrayList collection = new ArrayList(1);
collection.Add(result);
responseMessage = dataDestination.SequenceManager.ManageSequence(dataMessage, collection);
}
return responseMessage;
}
