interceptors_ss.cpp

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//
// interceptors_ss.cpp,v 1.27 2003/05/09 05:30:24 parsons Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    operation_interceptors_ss.cpp
//
// = DESCRIPTION
//    Visitor generating code for Operation node in the server stubs.
//
// = AUTHOR
//    Kirthika Parameswaran  <[e-mail]>
//    Ossama Othman <[e-mail]>
//
// ============================================================================

ACE_RCSID (be_visitor_operation, 
           operation_interceptors_ss, 
           "interceptors_ss.cpp,v 1.27 2003/05/09 05:30:24 parsons Exp")

// ******************************************************
// primary visitor for "operation" in server header
// ******************************************************

be_visitor_operation_interceptors_ss::be_visitor_operation_interceptors_ss (
    be_visitor_context *ctx
  )
  : be_visitor_operation (ctx)
{
}

be_visitor_operation_interceptors_ss::~be_visitor_operation_interceptors_ss (
    void
  )
{
}

int
be_visitor_operation_interceptors_ss::visit_operation (be_operation *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->generate_class_declaration (os, node) == -1)
    {
      return -1;
    }

  if (this->generate_class_definition (os, node) == -1)
    {
      return -1;
    }

  return 0;
}

int
be_visitor_operation_interceptors_ss::generate_class_declaration (
    TAO_OutStream *os,
    be_operation *node
  )
{
  be_type *bt = 0;
  be_visitor_context ctx (*this->ctx_);

  // save the node.
  this->ctx_->node (node);

  *os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl
      << "// " << __FILE__ << ":" << __LINE__;

  // Generate the ServerRequestInfo object per operation to
  // be used by the interecptors.

  *os << be_nl << be_nl 
      << "class TAO_ServerRequestInfo_"<< node->flat_name ();

  // We need the interface node in which this operation was defined. However,
  // if this operation node was an attribute node in disguise, we get this
  // information from the context and add a "_get"/"_set" to the flat
  // name to get around the problem of overloaded methods which are
  // generated for attributes.
  if (this->ctx_->attribute ())
    {
      bt = be_type::narrow_from_decl (node->return_type ());

      if (!bt)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interceptors_ch::"
                             "visit_operation - "
                             "Bad return type\n"),
                            -1);
        }

      // Grab the right visitor to generate the return type if its not
      // void it means it is not the accessor.
      if (!this->void_return_type (bt))
        {
          *os << "_get";
        }
      else
        {
          *os << "_set";
        }
    }

  *os << " : public TAO_ServerRequestInfo" << be_nl
      << "{" << be_nl
      << "public:" << be_idt_nl;

  *os << "TAO_ServerRequestInfo_"<< node->flat_name ();

  // We need the interface node in which this operation was defined. However,
  // if this operation node was an attribute node in disguise, we get this
  // information from the context and add a "_get"/"_set" to the flat
  // name to get around the problem of overloaded methods which are
  // generated for attributes.
  if (this->ctx_->attribute ())
    {
      bt = be_type::narrow_from_decl (node->return_type ());
      if (!bt)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interceptors_ch::"
                             "visit_operation - "
                             "Bad return type\n"),
                            -1);
        }

      // Grab the right visitor to generate the return type if its not
      // void it means it is not the accessor.
      if (!this->void_return_type (bt))
        {
          *os << "_get";
        }
      else
        {
          *os << "_set";
        }
    }

  *os << " (" << be_idt << be_idt_nl
      << "TAO_ServerRequest &_tao_server_request," << be_nl;

  be_interface *intf;
  intf = this->ctx_->attribute ()
    ? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
    : be_interface::narrow_from_scope (node->defined_in ());

  if (!intf)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interceptors_sh::"
                         "visit_operation - "
                         "bad interface scope\n"),
                        -1);
    }

  // Pass in the pointer to the Servant_Upcall.
  *os << "TAO_Object_Adapter::Servant_Upcall *tao_servant_upcall," << be_nl;

  // Get the right object implementation.
  *os << intf->full_skel_name () << " *tao_impl";

  // Generate the argument list with the appropriate mapping. For these
  // we grab a visitor that generates the parameter listing.

  ctx = *this->ctx_;
  ctx.state (TAO_CodeGen::TAO_OPERATION_INTERCEPTORS_ARGLIST_SH);
  be_visitor_operation_interceptors_arglist oia_visitor (&ctx);

  if (node->accept (&oia_visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_interceptors_sh::"
                         "visit_operation - "
                         "codegen for argument list failed\n"),
                        -1);
    }

 *os  << be_uidt_nl << ");" << be_uidt_nl << be_nl;

  // Here I still need to generate the other methods + private args.
  *os << "virtual Dynamic::ParameterList * arguments ("
      << be_idt << be_idt_nl
      << "ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS" << be_uidt_nl
      << ")" << be_nl
      << "ACE_THROW_SPEC ((CORBA::SystemException));"
      << be_uidt_nl << be_nl;

  *os << "virtual Dynamic::ExceptionList * exceptions ("
      << be_idt << be_idt_nl
      << "ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS" << be_uidt_nl
      << ")" << be_nl
      << "ACE_THROW_SPEC ((CORBA::SystemException));"
      << be_uidt_nl << be_nl;

  *os << "virtual CORBA::Any * result ("
      << be_idt << be_idt_nl
      << "ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS" << be_uidt_nl
      << ")" << be_nl
      << "ACE_THROW_SPEC ((CORBA::SystemException));"
      << be_uidt_nl << be_nl;

  *os << "virtual char * target_most_derived_interface ("
      << be_idt << be_idt_nl
      << "ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS" << be_uidt_nl
      << ")" << be_nl
      << "ACE_THROW_SPEC ((CORBA::SystemException));"
      << be_uidt_nl << be_nl;

  *os << "virtual CORBA::Boolean target_is_a (" << be_idt << be_idt_nl
      << "const char * id" << be_nl
      << "ACE_ENV_ARG_DECL_WITH_DEFAULTS" << be_uidt_nl
      << ")" << be_nl
      << "ACE_THROW_SPEC ((CORBA::SystemException));"
      << be_uidt_nl;

  // Store the result for later use.
  // generate the return type.
  bt = be_type::narrow_from_decl (node->return_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interceptors_ch::"
                         "visit_operation - "
                         "Bad return type\n"),
                        -1);
    }

  // Grab the right visitor to generate the return type if its not
  // void since we cant have a private member to be of void type.
  if (!this->void_return_type (bt))
    {
      *os << be_nl << "void result (";

      ctx = *this->ctx_;
      be_visitor_operation_rettype or_visitor (&ctx);

      if (bt->accept (&or_visitor) == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_operation_cs::"
                             "visit_operation - "
                             "codegen for retval pre invoke failed\n"),
                            -1);
        }

      *os << " result);\n";
    }

  *os << be_uidt_nl << "private:" << be_idt_nl;
  *os << "TAO_ServerRequestInfo_" << node->flat_name ();

  // We need the interface node in which this operation was defined. However,
  // if this operation node was an attribute node in disguise, we get this
  // information from the context and add a "_get"/"_set" to the flat
  // name to get around the problem of overloaded methods which are
  // generated for attributes.
  if (this->ctx_->attribute ())
    {
      bt = be_type::narrow_from_decl (node->return_type ());

      if (!bt)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interceptors_ch::"
                             "visit_operation - "
                             "Bad return type\n"),
                            -1);
        }

      // Grab the right visitor to generate the return type if its not
      // void it means it is not the accessor.
      if (!this->void_return_type (bt))
        {
          *os << "_get";
        }
      else
        {
          *os << "_set";
        }
    }

  *os << " (" << be_idt << be_idt_nl
      << "const "<< "TAO_ServerRequestInfo_"<< node->flat_name ();

  // We need the interface node in which this operation was defined. However,
  // if this operation node was an attribute node in disguise, we get this
  // information from the context and add a "_get"/"_set" to the flat
  // name to get around the problem of overloaded methods which are
  // generated for attributes.
  if (this->ctx_->attribute ())
    {
      bt = be_type::narrow_from_decl (node->return_type ());

      if (!bt)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interceptors_ch::"
                             "visit_operation - "
                             "Bad return type\n"),
                            -1);
        }

      // Grab the right visitor to generate the return type if its not
      // void it means it is not the accessor.
      if (!this->void_return_type (bt))
        {
          *os << "_get";
        }
      else
        {
          *os << "_set";
        }
    }


  *os << " &" << be_uidt_nl
      << ");" << be_uidt_nl << be_nl
      << "void operator= (" << be_idt << be_idt_nl
      << "const "
      << "TAO_ServerRequestInfo_"<< node->flat_name ();

  // We need the interface node in which this operation was defined. However,
  // if this operation node was an attribute node in disguise, we get this
  // information from the context and add a "_get"/"_set" to the flat
  // name to get around the problem of overloaded methods which are
  // generated for attributes.
  if (this->ctx_->attribute ())
    {
      bt = be_type::narrow_from_decl (node->return_type ());

      if (!bt)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interceptors_ch::"
                             "visit_operation - "
                             "Bad return type\n"),
                            -1);
        }

      // Grab the right visitor to generate the return type if its not
      // void it means it is not the accessor.