public Guid BeginNewConversation(Guid conversationGroupId, TimeSpan timeout)
{
ThrowIfDisposedOrNotOpen();
endConversationOnClose = false; //if a conversation is explicitly started, don't automatically close it.
TimeoutHelper helper = new TimeoutHelper(timeout);
try
{
string SQL = string.Format(
@"BEGIN DIALOG CONVERSATION @ConversationHandle
FROM SERVICE @Source TO SERVICE @Target
ON CONTRACT [{0}] WITH ENCRYPTION = {1}", contract, useEncryption?"ON":"OFF");
if (conversationGroupId != Guid.Empty)
{
SQL += String.Format(", RELATED_CONVERSATION_GROUP = '{0}'", conversationGroupId);
}
SqlCommand cmd = new SqlCommand(SQL, con);
cmd.CommandTimeout = helper.RemainingTimeInMillisecondsOrZero();
SqlParameter pconversationHandle = cmd.Parameters.Add("@ConversationHandle", SqlDbType.UniqueIdentifier);
pconversationHandle.Direction = ParameterDirection.Output;
SqlParameter pTarget = cmd.Parameters.Add("@Target", SqlDbType.VarChar);
pTarget.Value = this.target;
SqlParameter pSource = cmd.Parameters.Add("@Source", SqlDbType.VarChar);
pSource.Value = this.source;
cmd.ExecuteNonQuery();
this.conversation = SsbHelper.GetConversationInfo((Guid)pconversationHandle.Value, con);
return(this.conversation.ConversationHandle);
}
catch (SqlException ex)
{
if (!helper.IsTimeRemaining)
{
throw new TimeoutException(String.Format("Timed out while beginning new conversation to service {0}. Timeout value was {1} seconds", this.target, timeout.TotalSeconds), ex);
}
else
{
throw new CommunicationException(String.Format("An exception occurred while beginning new conversation to service {0}", this.target), ex);
}
}
finally
{
}
}
public void OpenConversation(Guid conversationHandle, TimeSpan timeout)
{
ThrowIfDisposedOrNotOpen();
this.conversation = SsbHelper.GetConversationInfo(conversationHandle, con);
}
