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//
// $Id$
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    context_svh.cpp
//
// = DESCRIPTION
//    Visitor generating code for a context class in the
//    servant header.
//
// = AUTHOR
//    Jeff Parsons
//
// ============================================================================

be_visitor_context_svh::be_visitor_context_svh (be_visitor_context *ctx)
  : be_visitor_component_scope (ctx)
{
}

be_visitor_context_svh::~be_visitor_context_svh (void)
{
}

int
be_visitor_context_svh::visit_component (be_component *node)
{
  node_ = node;
  
  AST_Decl *scope = ScopeAsDecl (node->defined_in ());
  ACE_CString sname_str (scope->full_name ());
  const char *sname = sname_str.c_str ();

  // No '_cxx_' prefix.
  const char *lname =
    node->original_local_name ()->get_string ();

  const char *global = (sname_str == "" ? "" : "::");

  os_ << be_nl
      << "class " << lname << "_Servant;"
      << be_nl << be_nl;

  os_ << "class " << export_macro_.c_str () << " " << lname
      << "_Context" << be_idt_nl
      << ": public virtual ::CIAO::"
      << (swapping_ ? "Upgradeable_" : "")
      << "Context_Impl<" << be_idt << be_idt_nl
      << global << sname << "::CCM_" << lname
      << "_Context," << be_nl
      << lname << "_Servant," << be_nl
      << "::" << node->name () << ">" << be_uidt << be_uidt << be_uidt_nl
      << "{" << be_nl
      << "public:" << be_idt_nl;

  os_ << "// Allow the servant to access our state." << be_nl
      << "friend class " << lname << "_Servant;"
      << be_nl << be_nl;

  os_ << "// Some useful typedefs." << be_nl<< be_nl
      << "typedef" << be_nl
      << "::CIAO::Context_Impl<" << be_idt << be_idt_nl
      << global << sname << "::CCM_"
      << lname << "_Context," << be_nl
      << lname << "_Servant," << be_nl
      << "::" << node->name () << ">" << be_uidt_nl
      << "base_type;" << be_uidt_nl << be_nl;

  os_ << "typedef base_type::context_type context_type;" << be_nl
      << "typedef base_type::servant_type servant_type;" << be_nl
      << "typedef base_type::component_type component_type;"
      << be_nl << be_nl;

  os_ << lname << "_Context (" << be_idt_nl
      << "::Components::CCMHome_ptr h," << be_nl
      << "::CIAO::Container_ptr c," << be_nl
      << lname << "_Servant *sv);" << be_uidt_nl << be_nl;

  os_ << "virtual ~" << lname << "_Context (void);";

  os_ << be_nl << be_nl
      << "// CIAO-specific." << be_nl
      << "static " << lname << "_Context *" << be_nl
      << "_narrow ( ::Components::SessionContext_ptr p);";

  os_ << be_nl << be_nl
      << "// Operations for " << lname
      << " receptacles and event sources,"
      << be_nl
      << "// defined in " << global << sname
      << "::CCM_" << lname << "_Context.";

  if (this->visit_component_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("be_visitor_context_svh")
                         ACE_TEXT ("::visit_component - ")
                         ACE_TEXT ("visit_component_scope() ")
                         ACE_TEXT ("failed\n")),
                        -1);
    }
    
  if (swapping_)
    {
      os_ << be_nl << be_nl
          << "/// Operation defined in " << sname << "::CCM_"
          << lname << "_Context" << be_nl
          << "/// that enable component swapping in the container."
          << be_nl
          << "virtual ::Components::ConsumerDescriptions *" << be_nl
          << "get_registered_consumers (const char * publisher_name);";
    }

  os_ << be_uidt_nl
      << "};";
    
  return 0;
}

int
be_visitor_context_svh::visit_uses (be_uses *node)
{
  const char *obj_name = node->uses_type ()->full_name ();
  const char *port_name = node->local_name ()->get_string ();
  bool is_multiple = node->is_multiple ();

  os_ << be_uidt_nl << be_nl
      << "public:" << be_idt_nl
      << "virtual ";

  if (is_multiple)
    {
      os_ << "::" << node_->full_name () << "::"
          << port_name << "Connections *" << be_nl
          << "get_connections_" << port_name << " (void);";
    }
  else
    {
      os_ << "::" << obj_name << "_ptr" << be_nl
          << "get_connection_" << port_name << " (void);";
    }

  os_ << be_nl << be_uidt_nl
      << "protected:" << be_idt_nl
      << "virtual "
      << (is_multiple ? "::Components::Cookie *" : "void")
      << be_nl
      << "connect_" << port_name << " (" << be_idt_nl
      << "::" << obj_name << "_ptr);"
      << be_uidt_nl << be_nl;

  os_ << "virtual ::" << obj_name << "_ptr" << be_nl
      << "disconnect_" << port_name << " (";

  if (is_multiple)
    {
      os_ << be_idt_nl
          << "::Components::Cookie * ck);" << be_uidt;
    }
  else
    {
      os_ << "void);";
    }

  os_ << be_uidt_nl << be_nl
      << "protected:" << be_idt_nl;

  if (is_multiple)
    {
      os_ << "// Multiplex " << port_name << " connection." << be_nl
          << "typedef ACE_Array_Map<ptrdiff_t," << be_nl
          << "                      ::"
          << obj_name << "_var>" << be_idt_nl
          << tao_cg->upcase (port_name)
          << "_TABLE;" << be_uidt_nl
          << tao_cg->upcase (port_name) << "_TABLE "
          << "ciao_uses_" << port_name << "_;" << be_nl
          << "TAO_SYNCH_MUTEX " << port_name << "_lock_;";
    }
  else
    {
      os_ << "// Simplex " << port_name << " connection." << be_nl
          << "::" << obj_name << "_var" << be_nl
          << "ciao_uses_" << port_name << "_;";
    }

  return 0;
}

int
be_visitor_context_svh::visit_publishes (be_publishes *node)
{
  const char *obj_name = node->publishes_type ()->full_name ();
  const char *port_name = node->local_name ()->get_string ();

  os_ << be_uidt_nl << be_nl
      << "public:" << be_idt_nl
      << "virtual void" << be_nl
      << "push_" << port_name << " (" << be_idt_nl
      << "::" << obj_name << " * ev);" << be_uidt_nl;

  os_ << be_uidt_nl
      << "protected:" << be_idt_nl;

  os_ << "virtual ::Components::Cookie *" << be_nl
      << "subscribe_" << port_name << " (" << be_idt_nl
      << "::" << obj_name << "Consumer_ptr c);" << be_uidt_nl;

  os_ << be_nl
      << "// CIAO-specific." << be_nl
      << "::Components::Cookie *" << be_nl
      << "subscribe_" << port_name << "_generic (" << be_idt_nl
      << "::Components::EventConsumerBase_ptr c);" << be_uidt_nl;

  os_ << be_nl
      << "virtual ::" << obj_name << "Consumer_ptr" << be_nl
      << "unsubscribe_" << port_name << " (" << be_idt_nl
      << "::Components::Cookie * ck);" << be_uidt;

  os_ << be_uidt_nl << be_nl
      << "protected:" << be_idt_nl;

  os_ << "typedef ACE_Array_Map<ptrdiff_t," << be_nl
      << "                      ::" << obj_name
      << "Consumer_var>" << be_idt_nl
      << tao_cg->upcase (port_name) << "_TABLE;" << be_uidt_nl
      << tao_cg->upcase (port_name) << "_TABLE ciao_publishes_"
      << port_name << "_;" << be_nl
      << "TAO_SYNCH_MUTEX " << port_name << "_lock_;"
      << be_nl << be_nl;

  os_ << "typedef ACE_Array_Map<ptrdiff_t," << be_nl
      << "                      ::Components::EventConsumerBase_var>"
      << be_idt_nl
      << tao_cg->upcase (port_name)
      << "_GENERIC_TABLE;" << be_uidt_nl
      << tao_cg->upcase (port_name)
      << "_GENERIC_TABLE ciao_publishes_"
      << port_name << "_generic_;";

  return 0;
}

int
be_visitor_context_svh::visit_emits (be_emits *node)
{
  const char *obj_name = node->emits_type ()->full_name ();
  const char *port_name = node->local_name ()->get_string ();

  os_ << be_uidt_nl << be_nl
      << "public:" << be_idt_nl;

  os_ << "virtual void" << be_nl
      << "push_" << port_name << " (" << be_idt_nl
      << "::" << obj_name << " * ev);" << be_uidt;

  os_ << be_uidt_nl << be_nl
          << "protected:" << be_idt_nl;

  os_ << "virtual void" << be_nl
      << "connect_" << port_name << " (" << be_idt_nl
      << "::" << obj_name << "Consumer_ptr c);" << be_uidt;

  os_ << be_nl << be_nl
      << "virtual ::" << obj_name << "Consumer_ptr" << be_nl
      << "disconnect_" << port_name << " (void);";

  os_ << be_uidt_nl << be_nl
      << "protected:" << be_idt_nl
      << "::" << obj_name << "Consumer_var" << be_nl
      << "ciao_emits_" << port_name << "_consumer_;";

  return 0;
}