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// $Id$
// ============================================================================
//
// = FILENAME
// FactoryFinderImpl.cpp
//
// = DESCRIPTION
// A Factory Finder for the Quoter example. This example conforms
// to the CosLifeCycle Factory Finder notion.
//
// = AUTHOR
// Michael Kircher (mk1@cs.wustl.edu)
//
// ============================================================================
#include "ace/Get_Opt.h"
#include "tao/corba.h"
#include "FactoryFinderImpl.h"
static const char usage [] =
"[-? |\n[-O[RBport] ORB port number]]";
// Constructor
QuoterFactoryFinderImpl::QuoterFactoryFinderImpl (void)
{
}
// Destructor.
QuoterFactoryFinderImpl::~QuoterFactoryFinderImpl (void)
{
}
CosLifeCycle::Factories *
QuoterFactoryFinderImpl::find_factories (const CosLifeCycle::Key &factory_key,
CORBA::Environment &_env_there)
{
CORBA::Environment env_here;
// fill in the name of the Quoter Factory
CosNaming::Name factoryName (1); // max = 1
factoryName.length (1);
factoryName[0].id = CORBA::string_dup ("quoter_factory");
// or
// Get a reference to the ORB.
CORBA::ORB_ptr orb_ptr = TAO_ORB_Core_instance ()->orb ();
// Get the Naming Service object reference.
CORBA::Object_var namingObj_var =
orb_ptr->resolve_initial_references ("NameService");
if (CORBA::is_nil (namingObj_var.in ()))
ACE_ERROR ((LM_ERROR,
" (%P|%t) Unable get the Naming Service.\n"));
// Narrow the object reference to a Naming Context.
CosNaming::NamingContext_var namingContext_var =
CosNaming::NamingContext::_narrow (namingObj_var.in (),
env_here);
// see if there is an exception, if yes then throw the NoFactory exception
if (env_here.exception () != 0) {
// throw a NoFactory exception
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// Get the IDL_Quoter naming context.
CosNaming::Name quoterContextName (1); // max = 1
quoterContextName.length (1);
quoterContextName[0].id = CORBA::string_dup ("IDL_Quoter");
CORBA::Object_var quoterNamingObj_var =
namingContext_var->resolve (quoterContextName, env_here);
// see if there is an exception, if yes then throw the NoFactory exception
if (env_here.exception () != 0) {
// throw a NoFactory exception
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
CosNaming::NamingContext_var quoterNamingContext_var =
CosNaming::NamingContext::_narrow (quoterNamingObj_var.in (),
env_here);
// see if there is an exception, if yes then throw the NoFactory exception
if (env_here.exception () != 0) {
// throw a NoFactory exception
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// ** now a proper reference to the quoter naming context is available
// Take the key supplied to search for a Quoter Factory
//CosNaming::Name factoryName = (CosNaming::Name) factory_key;
// Try to get a reference to a Quoter Factory
CORBA::Object_var quoterFactoryObject_var =
quoterNamingContext_var->resolve (factoryName, env_here);
// see if there is an exception, if yes then throw the NoFactory exception
if (env_here.exception () != 0) {
// throw a NoFactory exception
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// Check if it is a valid Quoter Factory reference
if (CORBA::is_nil (quoterFactoryObject_var.in())) {
// throw a NoFactory exception
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// were able to get a reference to Quoter Factory
else {
// create a sequence of factories object
CosLifeCycle::Factories *factories_ptr = new CosLifeCycle::Factories (1);
// See if there is an exception, if yes then throw the NoFactory
// exception.
if (env_here.exception () != 0)
{
// Throw a NoFactory exception.
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// using the Naming Service only one reference is available
factories_ptr->length (1);
// Check if it is a valid Quoter Factory reference.
if (CORBA::is_nil (quoterFactoryObject_var.in ()))
{
// throw a NoFactory exception.
_env_there.exception (new CosLifeCycle::NoFactory (factory_key));
return 0;
}
// insert the object reference
(*factories_ptr)[0] = quoterFactoryObject_var;
ACE_DEBUG ((LM_DEBUG,"Have reference to a Quoter Factory.\n"));
return factories_ptr;
}
}
|
