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// $Id$
// ===========================================================
//
// = LIBRARY
// TAO/tests/Simple/chat
//
// = FILENAME
// Broadcaster_i.cpp
//
// = DESCRIPTION
// Implementation of the Broadcaster_i class. This class is the servant
// object for the chat server.
//
// = AUTHOR
// Pradeep Gore <pradeep@cs.wustl.edu>
//
// ===========================================================
#include "Broadcaster_i.h"
bool
Broadcaster_i::Receiver_Data::operator == (const Broadcaster_i::Receiver_Data &receiver_data) const
{
// The <_is_equivalent> function checks if the _var and _ptr objects
// are the same. NOTE: this call might not behave well on other
// ORBs since <_is_equivalent> isn't guaranteed to differentiate
// object references.
return
this->receiver_->_is_equivalent (receiver_data.receiver_.in ())
&& this->nickname_ == receiver_data.nickname_;
}
Broadcaster_i::Broadcaster_i (void)
{
// No-op
}
Broadcaster_i::~Broadcaster_i (void)
{
// No-op
}
void
Broadcaster_i::add (Receiver_ptr receiver,
const char *nickname
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((
CORBA::SystemException,
Broadcaster::CannotAdd
))
{
Broadcaster_i::Receiver_Data receiver_data;
// Store the client information.
receiver_data.receiver_ = Receiver::_duplicate (receiver);
receiver_data.nickname_ = nickname;
// Insert the Receiver reference to the set
if (receiver_set_.insert (receiver_data) == -1)
ACE_THROW (Broadcaster::CannotAdd ("failed to add to the receiver set\n"));
// Tell everyone which person just joined the chat.
ACE_CString broadcast_string =
ACE_CString ("**** ")
+ ACE_CString (nickname)
+ ACE_CString (" has joined the chat ****\n");
ACE_TRY
{
this->broadcast (broadcast_string.fast_rep ()
ACE_ENV_ARG_PARAMETER);
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"Broadcaster_i::broadcast failed.\t\n");
}
ACE_ENDTRY;
}
void
Broadcaster_i::remove (Receiver_ptr receiver
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((
CORBA::SystemException,
Broadcaster::CannotRemove
))
{
Broadcaster_i::Receiver_Data receiver_data_to_remove;
// Go through the list of <Receiver_Data> to find which registered client
// wants to be removed.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
// The <_is_equivalent> function checks if the _var and _ptr objects
// are the same. NOTE: this call might not behave well on other
// ORBs since <_is_equivalent> isn't guaranteed to differentiate
// object references.
if ((*iter).receiver_.in ()->_is_equivalent (receiver) == 1)
{
receiver_data_to_remove = *iter;
break;
}
}
// Remove the reference from our list.
if (this->receiver_set_.remove (receiver_data_to_remove) == -1)
ACE_THROW(Broadcaster::CannotRemove ("failed to remove from receiver set\n"));
// Tell everyone, which person left the chat.
ACE_CString broadcast_string = "**** "
+ receiver_data_to_remove.nickname_
+ " left the chat"
+ " ****\n";
this->broadcast (broadcast_string.fast_rep ()
ACE_ENV_ARG_PARAMETER);
}
void
Broadcaster_i::say (Receiver_ptr receiver,
const char *text
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((
CORBA::SystemException
))
{
ACE_TRY
{
ACE_CString sender_nickname ("Sender Unknown");
// Find the nickname for this receiver.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
// The <_is_equivalent> function checks if the _var and
// _ptr objects are the same. NOTE: this call might not
// behave well on other ORBs since <_is_equivalent> isn't
// guaranteed to differentiate object references.
if ((*iter).receiver_.in ()->_is_equivalent (receiver) == 1)
sender_nickname = (*iter).nickname_;
}
// Broadcast the message to all registered clients
ACE_CString broadcast_string ("[" + sender_nickname + "] " + text);
this->broadcast (broadcast_string.fast_rep ()
ACE_ENV_ARG_PARAMETER);
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"Broadcaster_i::say\t\n");
}
ACE_ENDTRY;
}
void
Broadcaster_i::broadcast (const char *text
ACE_ENV_ARG_DECL)
{
// Broadcast the message to all registered clients.
for (RECEIVER_SET_ITERATOR iter = this->receiver_set_.begin ();
iter != this->receiver_set_.end ();
iter++)
{
ACE_TRY
{
(*iter).receiver_->message (text
ACE_ENV_ARG_PARAMETER);
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,"Failed to send a message\n");
}
ACE_ENDTRY;
}
}
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