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#include "Node_Locator.h"
#include "ace/Read_Buffer.h"
#include "dance/Logger/Log_Macros.h"
#include "Config_Handlers/XML_File_Intf.h"
#include "Config_Handlers/Common.h"
#include "dance/DAnCE_Utility.h"
#include "dance/DAnCE_PropertiesC.h"
namespace DAnCE
{
Node_Locator::Node_Locator (CORBA::ORB_ptr orb,
CosNaming::NamingContext_ptr nc)
: orb_ (CORBA::ORB::_duplicate (orb)),
nc_ (CosNaming::NamingContext::_duplicate (nc))
{
}
::Deployment::NodeManager_ptr
Node_Locator::locate_node (const char *name)
{
ACE_CString ior;
if (this->nodes_.find (name, ior) == 0)
{
return this->resolve_ior (name, ior.c_str ());
}
else
{
return this->ns_lookup (name);
}
}
bool
Node_Locator::process_cdd (const ACE_TCHAR *filename)
{
DANCE_TRACE ("Node_Locator::process_cdd");
if (!filename)
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO
ACE_TEXT("Node_Locator::process_cdd - ")
ACE_TEXT("Error: Provided with nil filename\n")));
return false;
}
::DAnCE::Config_Handlers::XML_File_Intf file (filename);
file.add_search_path (ACE_TEXT ("DANCE_ROOT"), ACE_TEXT ("/docs/schema/"));
::Deployment::Domain *plan = file.release_domain ();
if (!plan)
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO
ACE_TEXT("Node_Locator::process_cdd - ")
ACE_TEXT("Error: Processing file <%C>\n"), filename));
return false;
}
// install nodes
for (CORBA::ULong i=0; i < plan->node.length (); ++i)
{
::Deployment::Resource resource;
if (!get_resource_value (DAnCE::NODE_RESOURCE_TYPE,
plan->node[i].resource,
resource))
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR,
DLINFO ACE_TEXT("Node_Locator::process_cdd - ")
ACE_TEXT("Error: Resource <%C> not found.\n"),
DAnCE::NODE_RESOURCE_TYPE));
return false;
}
const ACE_TCHAR *val = 0;
if (!::DAnCE::Utility::get_satisfierproperty_value (DAnCE::NODE_IOR,
resource.property,
val))
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR,
DLINFO ACE_TEXT("Node_Locator::process_cdd - ")
ACE_TEXT("Error: Property <%C> not found.\n"),
DAnCE::NODE_IOR));
return false;
}
ACE_CString ior(val);
ior += "/";
ior += plan->node[i].name;
ior += ".NodeManager";
ACE_CString destination (plan->node[i].name);
DANCE_DEBUG (DANCE_LOG_MAJOR_DEBUG_INFO,
(LM_INFO, DLINFO ACE_TEXT("Node_Locator::process_cdd - ")
ACE_TEXT("Storing IOR %C for destination %C\n"),
ior.c_str (), destination.c_str ()));
this->nodes_.bind (destination, ior);
}
return true;
}
::Deployment::NodeManager_ptr
Node_Locator::resolve_ior (const char *name, const char *ior)
{
DANCE_TRACE ("Node_Locator::resolve_ior");
DANCE_DEBUG (DANCE_LOG_MINOR_EVENT,
(LM_DEBUG, DLINFO
ACE_TEXT("Node_Locator::resolve_ior - ")
ACE_TEXT("Resolving ior %C for destination %C\n"),
ior, name));
CORBA::Object_var obj = this->orb_->string_to_object (ior);
::Deployment::NodeManager_var nm = ::Deployment::NodeManager::_narrow (obj.in ());
if (CORBA::is_nil (nm.in ()))
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO ACE_TEXT("Node_Locator::resolve_ior - ")
ACE_TEXT("Error: Unable to retrieve reference for destination ")
ACE_TEXT("%C and ior %C\n"),
name, ior));
}
return nm._retn ();
}
void
Node_Locator::store_ior (const char *name, const char *ior)
{
DANCE_TRACE ("Node_Locator::store_ior");
this->nodes_.bind (name, ior);
}
::Deployment::NodeManager_ptr
Node_Locator::ns_lookup (const char *nodename)
{
DANCE_TRACE ("Node_Locator::ns_lookup");
if (CORBA::is_nil (this->nc_.in ()))
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO ACE_TEXT("Node_Locator::ns_lookup - ")
ACE_TEXT("Nameservice lookup of %C failed because there is no naming service.\n"),
nodename));
return ::Deployment::NodeManager::_nil ();
}
try
{
CosNaming::Name name;
name.length (1);
name[0].id = nodename;
name[0].kind = "NodeManager";
CORBA::Object_var obj = this->nc_->resolve (name);
::Deployment::NodeManager_var nm = ::Deployment::NodeManager::_narrow (obj.in ());
if (CORBA::is_nil (nm.in ()))
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO ACE_TEXT("Node_Locator::ns_lookup - ")
ACE_TEXT("Unable to narrow provided reference for node %C\n"),
nodename));
}
return nm._retn ();
}
catch (const CORBA::Exception &e)
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO ACE_TEXT("Node_Locator::ns_lookup - ")
ACE_TEXT("Caught CORBA exception while looking up name %C:%C\n"),
nodename, e._info ().c_str ()));
}
catch (...)
{
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_ERROR, DLINFO ACE_TEXT("Node_Locator::ns_lookup - ")
ACE_TEXT("Caught unexpected exception while looking up name %C\n"),
nodename));
}
return ::Deployment::NodeManager::_nil ();
}
bool
Node_Locator::get_resource_value (const char *type,
const ::Deployment::Resources &resources,
::Deployment::Resource &val)
{
DANCE_TRACE ("Node_Locator::get_resource_value<const char *>");
DANCE_DEBUG (DANCE_LOG_EVENT_TRACE,
(LM_TRACE, DLINFO
ACE_TEXT("Node_Locator::get_resource_value - ")
ACE_TEXT("Finding resource for type '%C'\n"),
type));
for (CORBA::ULong i = 0; i < resources.length (); ++i)
{
// search for the resource with resourceType
for (CORBA::ULong k = 0;k < resources[i].resourceType.length ();k++)
{
if (ACE_OS::strcmp (type,
resources[i].resourceType[k]) == 0)
{
DANCE_DEBUG (DANCE_LOG_EVENT_TRACE,
(LM_TRACE, DLINFO
ACE_TEXT("Node_Locator::get_resource_value - ")
ACE_TEXT("Found resource for type '%C'\n"),
type));
val = resources[i];
return true;
}
}
}
DANCE_ERROR (DANCE_LOG_ERROR,
(LM_WARNING, DLINFO
ACE_TEXT("Node_Locator::get_resource_value - ")
ACE_TEXT("Failed to extract resource for %C\n"),
type));
return false;
}
}
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