/// <summary>reads an incoming Giop reply message from the Message input stream msgInput</summary>
/// <remarks>Precondition: sourceStream contains a Giop reply Msg</remarks>
/// <returns>the .NET reply Msg created from the Giop Reply</returns>
internal IMessage ParseIncomingReplyMessage(CdrMessageInputStream msgInput,
IMethodCallMessage requestMessage,
GiopClientConnectionDesc conDesc)
{
Debug.WriteLine("receive reply message at client side");
CdrInputStream msgBody = msgInput.GetMessageContentReadingStream();
GiopClientRequest request = new GiopClientRequest(requestMessage, conDesc, m_interceptionOptions);
if (request.IsAsyncRequest)
{
try {
// with respec to interception, this is a new request -> call again send_request interception before reply
request.PrepareSecondAscyncInterception();
request.InterceptSendRequest();
} catch (Exception ex) {
request.Reply = new ReturnMessage(ex, requestMessage);
Exception newException = request.InterceptReceiveException(ex);
if (newException == ex)
{
throw;
}
else
{
throw newException; // exeption has been changed by interception point
}
}
}
// deserialize message body
IMessage result = m_ser.DeserialiseReply(msgBody, msgInput.Header.Version, request,
conDesc);
return(result);
}
internal GiopClientRequest(IMethodCallMessage requestMsg, GiopClientConnectionDesc conDesc,
IInterceptionOption[] interceptionOptions)
{
m_requestMessage = requestMsg;
m_conDesc = conDesc;
IntializeForInterception(interceptionOptions);
}
/// <summary>reads an incoming Giop reply message from the Stream sourceStream</summary>
/// <remarks>Precondition: sourceStream contains a Giop reply Msg</remarks>
/// <returns>the .NET reply Msg created from the Giop Reply</returns>
internal IMessage ParseIncomingReplyMessage(Stream sourceStream,
IMethodCallMessage requestMessage,
GiopClientConnectionDesc conDesc)
{
CdrMessageInputStream msgInput = new CdrMessageInputStream(sourceStream);
return(ParseIncomingReplyMessage(msgInput, requestMessage, conDesc));
}
public void TestReplyDeserialisation()
{
// request msg the reply is for
MethodInfo methodToCall = typeof(TestService).GetMethod("Add");
object[] args = new object[] { ((Int32)1), ((Int32)2) };
string uri = "iiop://localhost:8087/testuri"; // Giop 1.2 will be used because no version spec in uri
TestMessage requestMsg = new TestMessage(methodToCall, args, uri);
requestMsg.Properties[SimpleGiopMsg.IDL_METHOD_NAME_KEY] = methodToCall.Name; // done by serialization normally
// prepare connection desc
GiopClientConnectionDesc conDesc = new GiopClientConnectionDesc(null, null, new GiopRequestNumberGenerator(), null);
// create the reply
MemoryStream sourceStream = new MemoryStream();
CdrOutputStreamImpl cdrOut = new CdrOutputStreamImpl(sourceStream, 0, new GiopVersion(1, 2));
cdrOut.WriteOpaque(m_giopMagic);
// version
cdrOut.WriteOctet(1);
cdrOut.WriteOctet(2);
// flags
cdrOut.WriteOctet(0);
// msg-type: reply
cdrOut.WriteOctet(1);
// msg-length
cdrOut.WriteULong(16);
// request-id
cdrOut.WriteULong(5);
// reply-status: no-exception
cdrOut.WriteULong(0);
// no service contexts
cdrOut.WriteULong(0);
// body: 8 aligned
cdrOut.ForceWriteAlign(Aligns.Align8);
// result
cdrOut.WriteLong(3);
// check deser of msg:
sourceStream.Seek(0, SeekOrigin.Begin);
ReturnMessage result = (ReturnMessage)m_handler.ParseIncomingReplyMessage(sourceStream, requestMsg, conDesc);
Assert.AreEqual(3, result.ReturnValue);
Assert.AreEqual(0, result.OutArgCount);
}
public void TestLocationForwardOnIsA()
{
// tests location forward, if we forward on is_a call
IiopChannel chan = new IiopChannel(8090);
ChannelServices.RegisterChannel(chan, false);
// publish location fwd target
TestService target = new TestService();
string fwdTargetUri = "testuriFwdForIsA";
RemotingServices.Marshal(target, fwdTargetUri);
// request msg the reply is for
MethodInfo methodToCall = typeof(omg.org.CORBA.IObject).GetMethod("_is_a");
object[] args = new object[] { "IDL:Ch/Elca/Iiop/Tests/TestService:1.0" };
string origUrl = "iiop://localhost:8090/testuri"; // Giop 1.2 will be used because no version spec in uri
TestMessage requestMsg = new TestMessage(methodToCall, args, origUrl);
// prepare connection desc
GiopClientConnectionDesc conDesc = new GiopClientConnectionDesc(null, null, new GiopRequestNumberGenerator(), null);
try {
Stream locFwdStream = PrepareLocationFwdStream("localhost", 8090,
target);
IMessage resultMsg =
m_handler.ParseIncomingReplyMessage(locFwdStream, requestMsg, conDesc);
MarshalByRefObject fwdToTarget;
bool isFwd = GiopMessageHandler.IsLocationForward(resultMsg, out fwdToTarget);
Assert.IsTrue(isFwd, "is a forward?");
Assert.NotNull(fwdToTarget, "new target reference null?");
ReturnMessage result = (ReturnMessage)
m_handler.ForwardRequest(requestMsg, fwdToTarget);
Assert.AreEqual(true, result.ReturnValue);
Assert.AreEqual(0, result.OutArgCount);
} finally {
// unpublish target + channel
RemotingServices.Disconnect(target);
chan.StopListening(null);
ChannelServices.UnregisterChannel(chan);
}
}
internal GiopClientRequest(IMethodCallMessage requestMsg, GiopClientConnectionDesc conDesc,
IInterceptionOption[] interceptionOptions) {
m_requestMessage = requestMsg;
m_conDesc = conDesc;
IntializeForInterception(interceptionOptions);
}
/// <summary>serialises an outgoing .NET request Message on client side</summary>
internal void SerialiseOutgoingRequestMessage(IMessage msg, IIorProfile target, GiopClientConnectionDesc conDesc,
Stream targetStream, uint requestId) {
if (msg is IConstructionCallMessage) {
// not supported in CORBA, TBD: replace through do nothing instead of exception
throw new NotSupportedException("client activated objects are not supported with this channel");
} else if (msg is IMethodCallMessage) {
GiopVersion version = target.Version;
// write a CORBA request message into the stream targetStream
GiopHeader header = new GiopHeader(version.Major, version.Minor,
m_headerFlags, GiopMsgTypes.Request);
CdrMessageOutputStream msgOutput = new CdrMessageOutputStream(targetStream, header);
// serialize the message, this insert some data into msg, e.g. request-id
msg.Properties[SimpleGiopMsg.REQUEST_ID_KEY] = requestId; // set request-id
msg.Properties[SimpleGiopMsg.TARGET_PROFILE_KEY] = target;
GiopClientRequest request = new GiopClientRequest((IMethodCallMessage)msg, conDesc, m_interceptionOptions);
m_ser.SerialiseRequest(request,
msgOutput.GetMessageContentWritingStream(),
target, conDesc);
msgOutput.CloseStream();
if ((request.IsAsyncRequest) || (request.IsOneWayCall)) {
// after successful serialisation, call for oneway and async requests receive other,
// see corba 2.6, page 21-12.
request.InterceptReceiveOther();
}
} else {
throw new NotImplementedException("handling for this type of .NET message is not implemented at the moment, type: " +
msg.GetType());
}
}
/// <summary>reads an incoming Giop reply message from the Message input stream msgInput</summary>
/// <remarks>Precondition: sourceStream contains a Giop reply Msg</remarks>
/// <returns>the .NET reply Msg created from the Giop Reply</returns>
internal IMessage ParseIncomingReplyMessage(CdrMessageInputStream msgInput,
IMethodCallMessage requestMessage,
GiopClientConnectionDesc conDesc) {
Debug.WriteLine("receive reply message at client side");
CdrInputStream msgBody = msgInput.GetMessageContentReadingStream();
GiopClientRequest request = new GiopClientRequest(requestMessage, conDesc, m_interceptionOptions);
if (request.IsAsyncRequest) {
try {
// with respec to interception, this is a new request -> call again send_request interception before reply
request.PrepareSecondAscyncInterception();
request.InterceptSendRequest();
} catch (Exception ex) {
request.Reply = new ReturnMessage(ex, requestMessage);
Exception newException = request.InterceptReceiveException(ex);
if (newException == ex) {
throw;
} else {
throw newException; // exeption has been changed by interception point
}
}
}
// deserialize message body
IMessage result = m_ser.DeserialiseReply(msgBody, msgInput.Header.Version, request,
conDesc);
return result;
}
/// <summary>reads an incoming Giop reply message from the Stream sourceStream</summary>
/// <remarks>Precondition: sourceStream contains a Giop reply Msg</remarks>
/// <returns>the .NET reply Msg created from the Giop Reply</returns>
internal IMessage ParseIncomingReplyMessage(Stream sourceStream,
IMethodCallMessage requestMessage,
GiopClientConnectionDesc conDesc) {
CdrMessageInputStream msgInput = new CdrMessageInputStream(sourceStream);
return ParseIncomingReplyMessage(msgInput, requestMessage, conDesc);
}
public void TestRequestSerialisation()
{
// prepare message
MethodInfo methodToCall = typeof(TestService).GetMethod("Add");
object[] args = new object[] { ((Int32)1), ((Int32)2) };
string uri = "iiop://localhost:8087/testuri"; // Giop 1.2 will be used because no version spec in uri
Ior target = m_iiopUrlUtil.CreateIorForUrl(uri, "");
TestMessage msg = new TestMessage(methodToCall, args, uri);
// prepare connection context
GiopClientConnectionDesc conDesc = new GiopClientConnectionDesc(null, null,
new GiopRequestNumberGenerator(), null);
// serialise
MemoryStream targetStream = new MemoryStream();
uint reqId = 5;
m_handler.SerialiseOutgoingRequestMessage(msg, target.Profiles[0], conDesc, targetStream, reqId);
// check to serialised stream
targetStream.Seek(0, SeekOrigin.Begin);
CdrInputStreamImpl cdrIn = new CdrInputStreamImpl(targetStream);
cdrIn.ConfigStream(0, new GiopVersion(1, 2));
// first is Giop-magic
byte data;
AssertBytesFollowing(m_giopMagic, cdrIn);
// Giop version
data = (byte)cdrIn.ReadOctet();
Assert.AreEqual(1, data);
data = (byte)cdrIn.ReadOctet();
Assert.AreEqual(2, data);
// flags: big-endian, no fragements
data = (byte)cdrIn.ReadOctet();
Assert.AreEqual(0, data);
// Giop Msg type: request
data = (byte)cdrIn.ReadOctet();
Assert.AreEqual(0, data);
// Giop Msg length
uint msgLength = cdrIn.ReadULong();
cdrIn.SetMaxLength(msgLength);
// req-id
Assert.AreEqual(reqId, cdrIn.ReadULong());
// response flags
data = (byte)cdrIn.ReadOctet();
Assert.AreEqual(3, data);
cdrIn.ReadPadding(3); // reserved
// target
Assert.AreEqual(0, cdrIn.ReadUShort());
// target must be testuri encoded as ascii-characters
Assert.AreEqual(7, cdrIn.ReadULong());
AssertBytesFollowing(
new byte[] { 116, 101, 115, 116, 117, 114, 105 },
cdrIn);
// now the target method follows: Add (string is terminated by a zero)
Assert.AreEqual(4, cdrIn.ReadULong());
AssertBytesFollowing(new byte[] { 65, 100, 100, 0 }, cdrIn);
// now service contexts are following
SkipServiceContexts(cdrIn);
// Giop 1.2, must be aligned on 8
cdrIn.ForceReadAlign(Aligns.Align8);
// now params are following
Assert.AreEqual(1, cdrIn.ReadLong());
Assert.AreEqual(2, cdrIn.ReadLong());
}
/// <summary>serialises an outgoing .NET request Message on client side</summary>
internal void SerialiseOutgoingRequestMessage(IMessage msg, IIorProfile target, GiopClientConnectionDesc conDesc,
Stream targetStream, uint requestId)
{
if (msg is IConstructionCallMessage)
{
// not supported in CORBA, TBD: replace through do nothing instead of exception
throw new NotSupportedException("client activated objects are not supported with this channel");
}
else if (msg is IMethodCallMessage)
{
GiopVersion version = target.Version;
// write a CORBA request message into the stream targetStream
GiopHeader header = new GiopHeader(version.Major, version.Minor,
m_headerFlags, GiopMsgTypes.Request);
CdrMessageOutputStream msgOutput = new CdrMessageOutputStream(targetStream, header);
// serialize the message, this insert some data into msg, e.g. request-id
msg.Properties[SimpleGiopMsg.REQUEST_ID_KEY] = requestId; // set request-id
msg.Properties[SimpleGiopMsg.TARGET_PROFILE_KEY] = target;
GiopClientRequest request = new GiopClientRequest((IMethodCallMessage)msg, conDesc, m_interceptionOptions);
m_ser.SerialiseRequest(request,
msgOutput.GetMessageContentWritingStream(),
target, conDesc);
msgOutput.CloseStream();
if ((request.IsAsyncRequest) || (request.IsOneWayCall))
{
// after successful serialisation, call for oneway and async requests receive other,
// see corba 2.6, page 21-12.
request.InterceptReceiveOther();
}
}
else
{
throw new NotImplementedException("handling for this type of .NET message is not implemented at the moment, type: " +
msg.GetType());
}
}