/// <summary> Adds a zone to this topic</summary>
/// <param name="zone">The Zone to join with this topic
/// </param>
/// <exception cref="OpenADK.Library.AdkException"> AdkException is thrown if the zone is already joined to a
/// topic or if there is a SIF error during agent registration.
/// </exception>
public void Join(IZone zone)
{
lock (this)
{
// Check that zone is not already joined with this topic
if (fZones.Contains(zone))
{
AdkUtils._throw
(new SystemException
("Zone already joined with topic \"" + fObjType + "\""),
((ZoneImpl)zone).Log);
}
// Check that topic has a Provider, Subscriber, or QueryResults object
if (fSub == null && fPub == null && fQueryResults == null)
{
AdkUtils._throw
(
new SystemException
(
"Agent has not registered a Subscriber, Publisher, or QueryResults object with this topic"),
((ZoneImpl)zone).Log);
}
fZones.Add(zone);
if (zone.Connected)
{
((ZoneImpl)zone).Provision();
}
}
}
public void Query(Query query,
IMessagingListener listener,
string destinationId,
AdkQueryOptions queryOptions)
{
if (query == null)
{
AdkUtils._throw
(new ArgumentException("Query object cannot be null"), Agent.GetLog());
}
// Validate that the query object type and SIF Context are valid for this Topic
if (query.ObjectType != fObjType)
{
AdkUtils._throw(new ArgumentException("Query object type: {" + query.ObjectTag +
"} does not match Topic object type: " + fObjType + "}"), log);
}
if (!query.SifContext.Equals(fContext))
{
AdkUtils._throw(new ArgumentException("Query SIF_Context: {" + query.SifContext +
"} does not match Topic SIF_Context: " + fContext + "}"), log);
}
_checkZones();
AdkMessagingException err = null;
// Send the SIF_Request to each zone
foreach (ZoneImpl z in fZones)
{
try
{
z.Query(query, listener, destinationId, queryOptions);
}
catch (Exception th)
{
if (err == null)
{
err =
new AdkMessagingException
("Error querying topic \"" + fObjType + "\"", z);
}
if (th is AdkException)
{
err.Add(th);
}
else
{
err.Add(new AdkMessagingException(th.ToString(), z));
}
}
}
if (err != null)
{
AdkUtils._throw(err, Agent.GetLog());
}
}
/// <summary> Configure the server for HTTP as needed based on the settings of
/// this Transport object. If the server does not have a SocketListener on
/// the port specified for this transport, one is created.
/// configuration is performed dynamically as HttpTransport objects are
/// created, so listeners are added to the server the first time they are
/// needed.
/// </summary>
protected void ConfigureServer(IZone zone)
{
AdkSocketBinding newListener;
if (String.Compare(Protocol, "http", true) == 0)
{
newListener = ConfigureHttp(zone);
}
else if (String.Compare(Protocol, "https", true) == 0)
{
newListener = ConfigureHttps(zone);
}
else
{
throw new Exception("HttpTransport object configured with properties for another protocol: " +
fProps.Protocol);
}
if (newListener != null)
{
sServer.AddListener(newListener);
try
{
newListener.Start();
}
catch (Exception le)
{
AdkUtils._throw(
new AdkTransportException("Error starting SocketListener: " + le.Message, zone, le), log);
}
}
}
public void PublishEvent(Event data)
{
AdkMessagingException err = null;
_checkZones();
foreach (ZoneImpl z in fZones)
{
try
{
z.fPrimitives.SifEvent(z, data, null, null);
}
catch (Exception th)
{
if (err == null)
{
err =
new AdkMessagingException
("Error publishing event to topic \"" + fObjType + "\"", z);
}
if (th is AdkException)
{
err.Add(th);
}
else
{
err.Add(new AdkMessagingException(th.ToString(), z));
}
}
}
if (err != null)
{
AdkUtils._throw(err, Agent.GetLog());
}
}
/// <summary>
/// Sends a specific packet to the zone
/// </summary>
/// <param name="file"></param>
/// <param name="morePackets"></param>
protected internal virtual void SendPacket(FileInfo file,
bool morePackets)
{
long extraBytes = 0;
ResponsePacketInfo responsePacket = DeserializeResponseFileName(file.Name);
/* If we're processing SIF_ReportObject responses, read the ReportInfo
* data from the "requestMsgId.rpt" file
*
* TT 894 - If a SIFException is thrown after the ReportInfo is set on
* the ReportObjectStream, then we don't want to include that ReportInfo
* in the packet with the error. In that case, rptInfoReader will be
* null and will not be included in the list of payloads below.
*/
FileStream rptInfoStream = null;
if (fSrc == ResponseDeliveryType.SIFReportObject && !responsePacket.errorPacket)
{
try {
FileInfo f =
new FileInfo
(fWorkDir + Path.DirectorySeparatorChar.ToString() + responsePacket.destinationId + "." +
responsePacket.requestMsgId + ".rpt");
rptInfoStream = f.OpenRead();
extraBytes = f.Length;
}
catch (FileNotFoundException fnfe) {
fZone.Log.Debug
("Error sending SIF_ReportObject packet #" + responsePacket.packetNumber + (morePackets ? "" : " (last packet)") + ", file not found: " + fnfe.Message);
}
}
if ((Adk.Debug & AdkDebugFlags.Messaging) != 0)
{
fZone.Log.Debug
("Sending " + (responsePacket.errorPacket ? "SIF_Error response" : "SIF_Response") +
" packet #" + responsePacket.packetNumber +
(morePackets ? "" : " (last packet)"));
}
// Prepare SIF_Response
SIF_Response rsp = new SIF_Response();
rsp.SetSIF_MorePackets(morePackets ? YesNo.YES : YesNo.NO);
rsp.SIF_RequestMsgId = responsePacket.requestMsgId;
rsp.SIF_PacketNumber = responsePacket.packetNumber;
// The SIF_Response is rendered in the same version of SIF as the original SIF_Request
rsp.SifVersion = responsePacket.version;
if (responsePacket.errorPacket)
{
// Write an empty "<SIF_Error> </SIF_Error>" for the MessageStreamer
// to replace
SIF_Error err = new SIF_Error();
err.TextValue = " ";
rsp.SIF_Error = err;
}
if (!responsePacket.errorPacket || responsePacket.version.Major == 1)
{
// Write an empty "<SIF_ObjectData> </SIFObjectData>" for the
// MessageStreamer to fill in. If this is an errorPacket, the empty
// element is required per the SIF 1.x Specifications, but disallowed
// in SIF 2.x.
SIF_ObjectData placeholder = new SIF_ObjectData();
placeholder.TextValue = " ";
rsp.SIF_ObjectData = placeholder;
}
// Assign values to message header - this is usually done by
// MessageDispatcher.send() but because we're preparing a SIF_Response
// output stream we need to do it manually
SIF_Header hdr = rsp.Header;
hdr.SIF_Timestamp = DateTime.Now;
hdr.SIF_MsgId = SifFormatter.GuidToSifRefID(Guid.NewGuid());
hdr.SIF_SourceId = fZone.Agent.Id;
hdr.SIF_Security = fZone.Dispatcher.secureChannel();
hdr.SIF_DestinationId = responsePacket.destinationId;
// Write SIF_Response -- without its SIF_ObjectData payload -- to a buffer
using (MemoryStream envelope = new MemoryStream()) {
SifWriter writer = new SifWriter(envelope);
writer.Write(rsp);
writer.Flush();
envelope.Seek(0, SeekOrigin.Begin);
FileStream fs = file.OpenRead();
try {
// Send the SIF_Response as a stream
Stream [] payloads;
if (fSrc == ResponseDeliveryType.Generic)
{
payloads = new Stream [] { fs };
}
else
{
if (rptInfoStream != null)
{
payloads = new Stream [] { rptInfoStream, fs };
}
else
{
payloads = new Stream [] { fs };
}
}
using (MessageStreamer ms = new MessageStreamer
(
envelope,
payloads,
responsePacket.errorPacket ? "<SIF_Error>" : "<SIF_ObjectData>", responsePacket.errorPacket))
{
if ((Adk.Debug & AdkDebugFlags.Messaging) != 0)
{
fZone.Log.Debug("Send SIF_Response");
}
if ((Adk.Debug & AdkDebugFlags.Messaging_Detailed) != 0)
{
fZone.Log.Debug(" MsgId: " + rsp.MsgId);
}
SIF_Ack ack;
using (IMessageInputStream ackStream = fZone.ProtocolHandler.Send(ms)) {
ack =
(SIF_Ack)
fParser.Parse
(ackStream.GetInputStream(), fZone, SifParserFlags.None);
}
if (ack != null)
{
ack.LogRecv(fZone.Log);
}
}
// If we get here, the message was sent successfully
envelope.Close();
for (int i = 0; i < payloads.Length; i++)
{
payloads[i].Close();
}
fs.Close();
if (DELETE_ON_SUCCESS && file.Exists)
{
file.Delete();
}
}
catch (AdkException adke) {
AdkUtils._throw(adke, fZone.Log);
}
catch (Exception e) {
AdkUtils._throw
(new AdkException("Failed to send SIF_Response: " + e, fZone), fZone.Log);
}
finally {
if (fs != null)
{
fs.Close();
}
if (rptInfoStream != null)
{
rptInfoStream.Close();
}
}
}
}
