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// $Id$
#include "Node_Locator.h"
#include "ace/Read_Buffer.h"
#include "DAnCE/Logger/Log_Macros.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 ACE_TCHAR *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_node_map (const ACE_TCHAR *filename)
{
DANCE_TRACE ("Node_Locator::process_node_map");
if (filename == 0)
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::process_node_map - "
"Error: Provided with nil filename\n"));
return false;
}
FILE *inf = ACE_OS::fopen (filename, ACE_TEXT("r"));
if (inf == 0)
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::process_node_map - "
"Fail to open node manager map data file: <%s>\n",
filename));
return false;
}
ACE_Read_Buffer reader (inf, true);
char* string = 0;
// Read from the file line by line
while ((string = reader.read ('\n')) != 0)
{
if (ACE_OS::strlen (string) == 0) continue;
// Search from the right to the first space
const char* ior_start = ACE_OS::strrchr (string, ' ');
// Search from the left to the first space
const char* dest_end = ACE_OS::strchr (string, ' ');
// The destination is first followed by some spaces
ACE_CString destination (string, dest_end - string);
// And then the IOR
ACE_CString ior (ior_start + 1, ACE_OS::strlen (ior_start + 1));
reader.alloc ()->free (string);
DANCE_DEBUG ((LM_INFO, DLINFO "Node_Locator::process_node_map - "
"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 ACE_TCHAR *name, const ACE_TCHAR *ior)
{
DANCE_TRACE ("Node_Locator::resolve_ior");
DANCE_DEBUG ((LM_DEBUG, DLINFO "Node_Locator::resolve_ior - "
"Resolving ior %s for destination %s\n",
ior, name));
CORBA::Object_var obj = this->orb_->string_to_object (ior);
if (CORBA::is_nil (obj.in ()))
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::resolve_ior - "
"Error: Unable to resolve object reference for destination "
"%s and ior %s\n",
name, ior));
return false;
}
::Deployment::NodeManager_var nm = ::Deployment::NodeManager::_narrow (obj.in ());
if (CORBA::is_nil (nm.in ()))
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::resolve_ior - "
"Error: Unable to narrow reference for destination "
"%s and ior %s\n",
name, ior));
return false;
}
return nm._retn ();
}
void
Node_Locator::store_ior (const ACE_TCHAR *name, const ACE_TCHAR *ior)
{
DANCE_TRACE ("Node_Locator::store_ior");
this->nodes_.bind (name, ior);
}
::Deployment::NodeManager_ptr
Node_Locator::ns_lookup (const ACE_TCHAR *nodename)
{
DANCE_TRACE ("Node_Locator::ns_lookup");
if (CORBA::is_nil (this->nc_.in ()))
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::ns_lookup - "
"Nameservice lookup of %s 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 ((LM_ERROR, DLINFO "Node_Locator::ns_lookup - "
"Unable to narrow provided reference for node %s\n",
nodename));
return ::Deployment::NodeManager::_nil ();
}
return nm._retn ();
}
catch (const CORBA::Exception &e)
{
DANCE_ERROR ((LM_ERROR, DLINFO "Node_Locator::ns_lookup - "
"Caught CORBA exception while looking up name %s:%C\n",
nodename, e._info ().c_str ()));
}
catch (...)
{
}
return ::Deployment::NodeManager::_nil ();
}
}
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