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#include "orbsvcs/FaultTolerance/FT_ServerRequest_Interceptor.h"
#include "tao/IOPC.h"
#include "tao/ORB_Constants.h"
#include "tao/AnyTypeCode/DynamicC.h"
#include "tao/AnyTypeCode/TypeCode.h"
#include "tao/CDR.h"
#include "orbsvcs/FT_CORBA_ORBC.h"
#include "ace/Log_Msg.h"
#include "ace/OS_NS_string.h"
ACE_RCSID (FaultTolerance,
FT_ServerRequest_Interceptor,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
FT_ServerRequest_Interceptor::FT_ServerRequest_Interceptor (void)
: object_group_ref_version_ (0)
, is_primary_ (false)
, iogr_ (0)
, orb_ (0)
{
}
FT_ServerRequest_Interceptor::~FT_ServerRequest_Interceptor (void)
{
}
char *
FT_ServerRequest_Interceptor::name (void)
{
return CORBA::string_dup ("TAO_FT_ServerRequest_Interceptor");
}
void
FT_ServerRequest_Interceptor::destroy (void)
{
}
void
FT_ServerRequest_Interceptor::receive_request_service_contexts (
PortableInterceptor::ServerRequestInfo_ptr ri)
{
// Check for the group version service context
try
{
IOP::ServiceContext_var sc =
ri->get_request_service_context (IOP::FT_GROUP_VERSION);
this->check_iogr_version (sc.in ());
}
catch (const CORBA::BAD_PARAM&)
{
// No group version context, no problem just return.
return;
}
catch (const CORBA::Exception&)
{
throw;
}
}
void
FT_ServerRequest_Interceptor::receive_request (
PortableInterceptor::ServerRequestInfo_ptr ri)
{
// Check for the group version service context
CORBA::String_var op =
ri->operation ();
if (ACE_OS::strcmp (op.in (),
"tao_update_object_group") == 0)
{
this->update_iogr (ri);
}
// Else the world is fine
}
void
FT_ServerRequest_Interceptor::send_reply (
PortableInterceptor::ServerRequestInfo_ptr)
{
}
void
FT_ServerRequest_Interceptor::send_exception (
PortableInterceptor::ServerRequestInfo_ptr)
{
}
void
FT_ServerRequest_Interceptor::send_other (
PortableInterceptor::ServerRequestInfo_ptr)
{
}
void
FT_ServerRequest_Interceptor::check_iogr_version (
const IOP::ServiceContext &svc)
{
TAO_InputCDR cdr (reinterpret_cast<const char*> (svc.context_data.get_buffer ()),
svc.context_data.length ());
CORBA::Boolean byte_order;
if ((cdr >> ACE_InputCDR::to_boolean (byte_order)) == 0)
return;
cdr.reset_byte_order (static_cast<int> (byte_order));
FT::FTGroupVersionServiceContext fgvsc;
if ((cdr >> fgvsc) == 0)
throw CORBA::BAD_PARAM (CORBA::OMGVMCID | 28, CORBA::COMPLETED_NO);
if (fgvsc.object_group_ref_version >
this->object_group_ref_version_)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("TAO_FT (%P|%t) - Wrong version information ")
ACE_TEXT ("within the interceptor (%u > %u)\n"),
fgvsc.object_group_ref_version,
this->object_group_ref_version_));
}
else if (fgvsc.object_group_ref_version <
this->object_group_ref_version_)
{
// Notice that this is a permanent forward.
throw PortableInterceptor::ForwardRequest (this->iogr_.in());
}
else if ((fgvsc.object_group_ref_version ==
this->object_group_ref_version_) &&
!this->is_primary_)
{
throw CORBA::TRANSIENT (
CORBA::SystemException::_tao_minor_code (
TAO::VMCID,
EINVAL),
CORBA::COMPLETED_NO);
}
else
{
// Everything is okay...
}
}
void
FT_ServerRequest_Interceptor::update_iogr (
PortableInterceptor::ServerRequestInfo_ptr ri)
{
if (this->orb_.in () == 0)
{
CORBA::String_var orb_id =
ri->orb_id ();
int argc = 0;
ACE_TCHAR **argv = 0;
this->orb_ =
CORBA::ORB_init (argc,
argv,
orb_id.in ());
}
Dynamic::ParameterList_var param =
ri->arguments ();
// this is only for checking the tao_update_object_group operation
// which accepts three parameters, i.e.,an iogr as a string,
// a version object and a boolean.
if (param->length () != 3 )
throw CORBA::TRANSIENT ();
const char *str = 0;
(*param)[0].argument >>= str;
(*param)[1].argument >>= this->object_group_ref_version_;
(*param)[2].argument >>= CORBA::Any::to_boolean(this->is_primary_);
CORBA::String_var obj (str);
this->iogr_ =
this->orb_->string_to_object (obj.in ());
// @@ This exception is a hack to let the RM know that we have
// received and updated the IOGR. We will add a special minor code
// soon.
if (this->iogr_.in ())
throw CORBA::TRANSACTION_ROLLEDBACK ();
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
|
