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/* -*- C++ -*- */
//=============================================================================
/**
* @file FT_DefaultFaultAnalyzer.cpp
*
* $Id$
*
* This file is part of TAO's implementation of Fault Tolerant CORBA.
*
* @author Steve Totten <totten_s@ociweb.com>
*/
//=============================================================================
#include "FT_DefaultFaultAnalyzer.h"
#include "orbsvcs/orbsvcs/CosNotifyCommC.h"
#include "orbsvcs/orbsvcs/FT_NotifierC.h"
#include "orbsvcs/orbsvcs/FT_FaultDetectorFactoryC.h"
#include "orbsvcs/orbsvcs/FT_ReplicationManagerC.h"
#include "orbsvcs/FT_ReplicationManager/FT_FaultEventDescriptor.h"
#include "tao/debug.h"
ACE_RCSID (FT_DefaultFaultAnalyzer,
FT_DefaultFaultAnalyzer,
"$Id$")
/// Default constructor.
TAO::FT_DefaultFaultAnalyzer::FT_DefaultFaultAnalyzer ()
{
}
/// Destructor.
TAO::FT_DefaultFaultAnalyzer::~FT_DefaultFaultAnalyzer ()
{
}
// Validate the event to make sure it is one we can handle.
// If it is not an event we can handle, this function logs the error
// and returns -1.
int TAO::FT_DefaultFaultAnalyzer::validate_event_type (
const CosNotification::StructuredEvent & event)
{
int result = 0;
// CORBA 3.0.2, section 23.4.5.1 states:
//
// The fault management specification defines one event type:
// ObjectCrashFault. As the name suggests, this event is
// generated by a Fault Detector when it detects that an object
// has crashed.
// So, the event header's event_type.domain_name must be "FT_CORBA"
// and the event header's event_type.type_name must be "ObjectCrashFault".
// @@ why make string dups just to do a strcmp?
CORBA::String_var domain_name = CORBA::string_dup (
event.header.fixed_header.event_type.domain_name);
CORBA::String_var type_name = CORBA::string_dup (
event.header.fixed_header.event_type.type_name);
CORBA::String_var event_name = CORBA::string_dup (
event.header.fixed_header.event_name);
if (result == 0)
{
if (ACE_OS::strcmp (domain_name.in(), FT::FT_EVENT_TYPE_DOMAIN) != 0 ||
ACE_OS::strcmp (type_name.in(), FT::FT_EVENT_TYPE_NAME) != 0)
{
if (TAO_debug_level > 6)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT (
"TAO::FT_DefaultFaultAnalyzer::validate_event_type: "
"Received invalid event type.\n"
"EventType domain: <%s>\n"
"EventType type: <%s>\n"
"EventName: <%s>\n"),
domain_name.in(),
type_name.in(),
event_name.in()
));
}
result = -1;
}
}
// CORBA 3.0.2, section 23.4.5.1 also states:
//
// The filterable_data part of the event body contains the
// identity of the crashed object as four name-value pairs: the
// fault tolerance domain identifier, the member’s location
// identifier, the repository identifier and the object group
// identifier. The Fault Notifier filters events based on the
// domain_name, the type_name, and the four identifiers. All
// other fields of the structured event may be set to null.
//
// The Fault Detector always sets the following fault event
// fields: domain_name, type_name, FTDomainId, and Location.
//
// So, at least "FTDomainId" and "Location" must be present:
if (result == 0)
{
if (event.filterable_data.length () >= 2)
{
// Check for FTDomainId.
if (ACE_OS::strcmp (
event.filterable_data[0].name.in(), FT::FT_DOMAIN_ID) != 0)
{
if (TAO_debug_level > 6)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT (
"TAO::FT_DefaultFaultAnalyzer::validate_event_type: "
"Received invalid structured event.\n"
"filterable_data[0] must be \"FTDomainId\", not \"%s\"\n"),
event.filterable_data[0].name.in()
));
}
result = -1;
}
else if (ACE_OS::strcmp (
event.filterable_data[1].name.in(), FT::FT_LOCATION) != 0)
{
if (TAO_debug_level > 6)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT (
"TAO::FT_DefaultFaultAnalyzer::validate_event_type: "
"Received invalid structured event.\n"
"filterable_data[1] must be \"Location\", not \"%s\"\n"),
event.filterable_data[1].name.in()
));
}
result = -1;
}
}
else
{
if (TAO_debug_level > 6)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT (
"TAO::FT_DefaultFaultAnalyzer::validate_event_type: "
"Received invalid structured event.\n"
"There must be at least two name/value pairs in "
"the filterable_data field, for \"FTDomainId\" and \"Location\".\n")
));
}
result = -1;
}
}
return result;
}
/// Analyze a fault event.
int TAO::FT_DefaultFaultAnalyzer::analyze_fault_event (
const CosNotification::StructuredEvent & event)
{
ACE_UNUSED_ARG (event);
if (TAO_debug_level > 6)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT (
"In TAO::FT_DefaultFaultAnalyzer::analyze_fault_event.\n")
));
}
// no-op
return 0;
}
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