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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// home_svh.cpp
//
// = DESCRIPTION
// Visitor generating code for HOmes in the servant header.
//
// = AUTHOR
// Jeff Parsons
//
// ============================================================================
// ******************************************************
// Home visitor for server header
// ******************************************************
be_visitor_home_svh::be_visitor_home_svh (be_visitor_context *ctx)
: be_visitor_scope (ctx),
node_ (0),
comp_ (0),
os_ (*ctx->stream ()),
export_macro_ (be_global->svnt_export_macro ())
{
/// All existing CIAO examples set the servant export values in the CIDL
/// compiler to equal the IDL compiler's skel export values. Below is a
/// partial effort to decouple them, should be completely decoupled
/// sometime. See comment in codegen.cpp, line 1173.
if (export_macro_ == "")
{
export_macro_ = be_global->skel_export_macro ();
}
}
be_visitor_home_svh::~be_visitor_home_svh (void)
{
}
int
be_visitor_home_svh::visit_home (be_home *node)
{
if (node->imported ())
{
return 0;
}
node_ = node;
comp_ = node_->managed_component ();
/// CIDL-generated namespace used 'CIDL_' + composition name.
/// Now we use 'CIAO_' + component's flat name.
os_ << be_nl << be_nl
<< "namespace CIAO_" << comp_->flat_name () << "_Impl" << be_nl
<< "{" << be_idt;
if (this->gen_servant_class () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_home_svh::")
ACE_TEXT ("visit_home - ")
ACE_TEXT ("gen_servant_class() failed\n")),
-1);
}
this->gen_entrypoint ();
os_ << be_uidt_nl
<< "}";
return 0;
}
int
be_visitor_home_svh::visit_operation (be_operation *node)
{
be_visitor_operation_ch v (this->ctx_);
return v.visit_operation (node);
}
int
be_visitor_home_svh::visit_attribute (be_attribute *node)
{
be_visitor_attribute v (this->ctx_);
return v.visit_attribute (node);
}
int
be_visitor_home_svh::visit_factory (be_factory *node)
{
os_ << be_nl << be_nl
<< "virtual ::" << comp_->name () << "_ptr" << be_nl
<< node->local_name ();
// We can reuse this visitor.
be_visitor_valuetype_init_arglist_ch v (this->ctx_);
if (v.visit_factory (node) != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_home_svh::")
ACE_TEXT ("visit_factory - ")
ACE_TEXT ("codegen for argument ")
ACE_TEXT ("list failed\n")),
-1);
}
os_ << ";";
return 0;
}
int
be_visitor_home_svh::visit_finder (be_finder *node)
{
return this->visit_factory (node);
}
int
be_visitor_home_svh::gen_servant_class (void)
{
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 *clname = comp_->local_name ()->get_string ();
const char *global = (sname_str == "" ? "" : "::");
bool swapping = be_global->gen_component_swapping ();
os_ << be_nl
<< "class " << export_macro_.c_str () << " " << lname
<< "_Servant" << be_idt_nl
<< ": public virtual" << be_idt << be_idt_nl
<< "::CIAO::"
<< (swapping ? "Swapping_" : "")
<< "Home_Servant_Impl<" << be_idt_nl
<< "::" << node_->full_skel_name () << "," << be_nl
<< global << sname << "::CCM_" << lname << "," << be_nl
<< clname << "_Servant>"
<< be_uidt << be_uidt << be_uidt << be_uidt_nl
<< "{" << be_nl
<< "public:" << be_idt_nl;
os_ << lname << "_Servant (" << be_idt_nl
<< global << sname << "::CCM_" << lname << "_ptr exe," << be_nl
<< "const char * ins_name," << be_nl
<< "::CIAO::Container_ptr c);" << be_uidt;
os_ << be_nl << be_nl
<< "virtual ~" << lname << "_Servant (void);";
AST_Type *pk = node_->primary_key ();
if (pk != 0)
{
os_ << be_nl << be_nl
<< "// Implicit home primary key operations - not supported.";
os_ << be_nl << be_nl
<< "virtual ::" << comp_->name () << "_ptr" << be_nl
<< "create (" << be_idt_nl
<< "::" << pk->name () << " * key);" << be_uidt;
os_ << be_nl << be_nl
<< "virtual ::" << comp_->name () << "_ptr" << be_nl
<< "find_by_primary_key (" << be_idt_nl
<< "::" << pk->name () << " * key);" << be_uidt;
os_ << be_nl << be_nl
<< "virtual void" << be_nl
<< "remove (" << be_idt_nl
<< "::" << pk->name () << " * key);" << be_uidt;
os_ << be_nl << be_nl
<< "virtual ::" << pk->name () << " *" << be_nl
<< "get_primary_key (" << be_idt_nl
<< "::" << comp_->name () << "_ptr comp);" << be_uidt;
}
be_home *h = node_;
while (h != 0)
{
if (this->visit_scope (h) != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_home_svh::")
ACE_TEXT ("gen_servant_class - ")
ACE_TEXT ("visit_scope() failed\n")),
-1);
}
for (long i = 0; i < h->n_inherits (); ++i)
{
// A closure of all the supported interfaces is stored
// in the base class 'pd_inherits_flat' member.
be_interface *bi =
be_interface::narrow_from_decl (h->inherits ()[i]);
int status =
bi->traverse_inheritance_graph (
be_visitor_home_svh::op_attr_decl_helper,
&os_);
if (status == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_home_svh::")
ACE_TEXT ("gen_servant_class - ")
ACE_TEXT ("traverse_inheritance_graph() ")
ACE_TEXT ("failed for %s\n"),
bi->full_name ()),
-1);
}
}
h = be_home::narrow_from_decl (h->base_home ());
}
os_ << be_uidt_nl
<< "};";
return 0;
}
void
be_visitor_home_svh::gen_entrypoint (void)
{
os_ << be_nl << be_nl
<< "extern \"C\" " << export_macro_.c_str ()
<< " ::PortableServer::Servant" << be_nl
<< "create_" << node_->flat_name ()
<< "_Servant (" << be_idt_nl
<< "::Components::HomeExecutorBase_ptr p," << be_nl
<< "::CIAO::Container_ptr c," << be_nl
<< "const char * ins_name);" << be_uidt;
}
int
be_visitor_home_svh::op_attr_decl_helper (be_interface * /* derived */,
be_interface *ancestor,
TAO_OutStream *os)
{
/// We're in a static method, so we have to instantiate a temporary
/// visitor and context.
be_visitor_context ctx;
ctx.state (TAO_CodeGen::TAO_ROOT_SVH);
ctx.stream (os);
be_visitor_home_svh visitor (&ctx);
/// Since this visitor overriddes only visit_operation() and
/// visit_attribute(), we can get away with this for the declarations.
return visitor.visit_scope (ancestor);
}
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