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#include "orbsvcs/Log_Macros.h"
#include "orbsvcs/Log_Macros.h"
#include "orbsvcs/HTIOP/HTIOP_Connector.h"
#include "orbsvcs/HTIOP/HTIOP_Profile.h"
#include "ace/HTBP/HTBP_Session.h"
#include "ace/HTBP/HTBP_ID_Requestor.h"
#include "ace/HTBP/HTBP_Environment.h"
#include "tao/debug.h"
#include "tao/ORB_Core.h"
#include "tao/Client_Strategy_Factory.h"
#include "tao/SystemException.h"
#include "tao/Base_Transport_Property.h"
#include "tao/Transport_Cache_Manager.h"
#include "tao/Connect_Strategy.h"
#include "tao/Thread_Lane_Resources.h"
#include "tao/Profile_Transport_Resolver.h"
#include "ace/Strategies_T.h"
#include "ace/OS_NS_strings.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO::HTIOP::Connector::Connector (ACE::HTBP::Environment *ht_env)
: TAO_Connector (OCI_TAG_HTIOP_PROFILE),
connect_creation_strategy_ (),
concurrency_strategy_ (),
ht_env_ (ht_env)
{
}
TAO::HTIOP::Connector::~Connector ()
{
}
int
TAO::HTIOP::Connector::open (TAO_ORB_Core *orb_core)
{
// Set the ORB Core
this->orb_core (orb_core);
// Create our connect strategy
if (this->create_connect_strategy () == -1)
return -1;
/// Our connect creation strategy
ACE_NEW_RETURN (this->connect_creation_strategy_,
CONNECT_CREATION_STRATEGY
(orb_core->thr_mgr (),
orb_core),
-1);
ACE_NEW_RETURN (this->concurrency_strategy_,
CONNECT_CONCURRENCY_STRATEGY (orb_core),
-1);
return 0;
}
int
TAO::HTIOP::Connector::close ()
{
delete this->concurrency_strategy_;
delete this->connect_creation_strategy_;
return 0;
}
int
TAO::HTIOP::Connector::set_validate_endpoint (TAO_Endpoint *endpoint)
{
// Set and validate endpoint. We need to do this to initialize our
// remote *_Addr's which have not been done during IOR decode.
/**
* @note The above comments talk about initialization. But, based on
* code reading, this is more of a validation of the endpoint rather
* than setting anything. So, nothing here needs to be modified for
* TAO_HTIOP case.
*/
TAO::HTIOP::Endpoint *htiop_endpoint =
this->remote_endpoint (endpoint);
if (htiop_endpoint == 0)
return -1;
const ACE::HTBP::Addr &remote_address =
htiop_endpoint->object_addr ();
// Verify that the remote ACE::HTBP::Addr was initialized properly.
// Failure can occur if hostname lookup failed when initializing the
// remote ACE::HTBP::Addr.
if (remote_address.get_type () != AF_INET &&
(remote_address.get_htid() == 0 ||
ACE_OS::strlen(remote_address.get_htid()) == 0))
{
if (TAO_debug_level > 0)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) TAO_HTIOP connection failed.\n")
ACE_TEXT ("TAO (%P|%t) This is most likely ")
ACE_TEXT ("due to a hostname lookup ")
ACE_TEXT ("failure.\n")));
}
return -1;
}
return 0;
}
TAO_Transport *
TAO::HTIOP::Connector::make_connection (TAO::Profile_Transport_Resolver *,
TAO_Transport_Descriptor_Interface &desc,
ACE_Time_Value *timeout)
{
/**
* \par
* Connector is used only in the processes inside the firewall
* This can connect to the remote address as it does always.
* If it is needed that the client first connect to the firewall
* and the firewall connects to the remote address, the code here
* should be modified to accomodate the requirement. And this would
* mean that we need to know the firewall address as well in this
* method.
* Probable checks would be
* 1. Check if the endpoint is outside the firewall
* 2. If so, connect to the firewall
* 3. Make the firewall connect to the outside server.
*
* \par Dated Oct 15:
*/
TAO::HTIOP::Endpoint *htiop_endpoint =
this->remote_endpoint (desc.endpoint ());
if (htiop_endpoint == 0)
return 0;
ACE::HTBP::Session_Id_t session_id;
ACE_TString proxy_host;
unsigned proxy_port;
int const port_set = this->ht_env_->get_proxy_port(proxy_port);
int const host_set = this->ht_env_->get_proxy_host(proxy_host);
if (port_set != 0 ||
host_set != 0)
{
proxy_port = htiop_endpoint->port();
proxy_host = ACE_TEXT_CHAR_TO_TCHAR(htiop_endpoint->host());
}
else
{
ACE::HTBP::ID_Requestor req(ht_env_);
session_id.local_ = ACE_TEXT_ALWAYS_CHAR(req.get_HTID());
}
if (proxy_port == 0)
return 0;
session_id.peer_ = htiop_endpoint->object_addr ();
session_id.id_ = ACE::HTBP::Session::next_session_id();
if (TAO_debug_level > 2)
{
char buffer[BUFSIZ];
htiop_endpoint->addr_to_string(buffer,BUFSIZ);
ORBSVCS_DEBUG ((LM_DEBUG,
"TAO (%P|%t) - TAO::HTIOP::Connector::make_connection, "
"to <%s>\n",
buffer));
}
// Get the right synch options
ACE_Synch_Options synch_options;
this->active_connect_strategy_->synch_options (timeout,
synch_options);
// The code used to set the timeout to zero, with the intent of
// polling the reactor for connection completion. However, the side-effect
// was to cause the connection to timeout immediately.
// This is where we need to set the ACE::HTBP::Stream to the connection
// handler.
TAO::HTIOP::Connection_Handler *svc_handler = 0;
// In more traditional connectors, the following code would be part of a
// strategized connector's connect() method. This include making the
// handler, attaching the session, and activating the handler.
// Instantiate a ACE::HTBP::Session
ACE::HTBP::Session *session = 0;
if (ACE::HTBP::Session::find_session (session_id, session) == -1)
{
ACE_INET_Addr *proxy = 0;
ACE_NEW_RETURN (proxy,
ACE_INET_Addr(static_cast<u_short> (proxy_port),proxy_host.c_str()),
0);
ACE_NEW_RETURN (session, ACE::HTBP::Session (session_id,proxy, 1), 0);
if (ACE::HTBP::Session::add_session (session) == -1)
ORBSVCS_ERROR_RETURN ((LM_ERROR,
"ACE::HTBP::Initial_Filter::recv_data_header %p",
"add_session"),
0);
}
// Make the svc_handler
this->connect_creation_strategy_->make_svc_handler (svc_handler);
// we now have a connection handler that has an unconnected stream
// Make sure that we always do a remove_reference
ACE_Event_Handler_var svc_handler_auto_ptr (svc_handler);
svc_handler->peer().session(session);
session->handler(svc_handler);
ACE::HTBP::Channel *outbound = session->outbound();
ACE_UNUSED_ARG (outbound);
// Activate immediately if we are connected.
this->concurrency_strategy_->activate_svc_handler (svc_handler,0);
// The above code is a rendering of connect() that allows the session to
// reacquire a stream rather than opening a new one.
int closed = svc_handler->is_closed();
// At this point, the IIOP Connector has a result from an asynch connect
// strategy, which does not apply here. Therefore the whole bit of logic
// of dealing with a failed wait but an unclosed svc_handler is skipped.
if (closed) // would be result == -1 in IIOP_Connector
{
if (TAO_debug_level)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT("(%P|%t) - TAO::HTIOP::Connector::make_connection, ")
ACE_TEXT("connection to <%s:%d> failed (%p)\n"),
htiop_endpoint->host (), htiop_endpoint->port (),
"errno"));
}
return 0;
}
if (TAO_debug_level > 2)
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT("(%P|%t) - TAO::HTIOP::Connector::make_connection, ")
ACE_TEXT("new connection to <%s:%d> on Transport[%d]\n"),
htiop_endpoint->host (), htiop_endpoint->port (),
svc_handler->peer ().get_handle ()));
TAO_Transport *transport = svc_handler->transport ();
// Add the handler to Cache
// @todo several other things need to be done regarding the following
// code.
// @note The cache_transport would probably need to cache the session id
// with the local and remote addresses.
int retval =
this->orb_core ()->lane_resources ().
transport_cache ().cache_transport (&desc, transport);
if (retval == -1)
{
svc_handler->close();
if (TAO_debug_level > 0)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT("(%P|%t) - TAO::HTIOP::Connector::make_connection, ")
ACE_TEXT("could not add the new")
ACE_TEXT(" connection to cache\n")));
}
return 0;
}
// If the wait strategy wants us to be registered with the reactor
// then we do so.
retval = transport->wait_strategy ()->register_handler ();
if (retval != 0)
{
transport->purge_entry ();
transport->close_connection();
if (TAO_debug_level > 0)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT("(%P|%t) - TAO::HTIOP::Connector::make_connection, ")
ACE_TEXT("could not register the new connection")
ACE_TEXT(" in the reactor\n")));
}
return 0;
}
svc_handler_auto_ptr.release ();
return transport;
}
int
TAO::HTIOP::Connector::cancel_svc_handler (
TAO_Connection_Handler * svc_handler)
{
TAO::HTIOP::Connection_Handler* handler=
dynamic_cast<TAO::HTIOP::Connection_Handler*> (svc_handler);
if (handler)
// Cancel from the connector
// this->base_connector_.cancel (handler);
return 0;
return -1;
}
/**
* @brief Create a profile and initialize it based on the
* encapsulation in @a cdr
*/
TAO_Profile *
TAO::HTIOP::Connector::create_profile (TAO_InputCDR& cdr)
{
TAO_Profile *pfile;
ACE_NEW_RETURN (pfile,
TAO::HTIOP::Profile (this->orb_core ()),
0);
int r = pfile->decode (cdr);
if (r == -1)
{
pfile->_decr_refcnt ();
pfile = 0;
}
return pfile;
}
/**
* @brief Create a profile with a given endpoint.
*/
TAO_Profile *
TAO::HTIOP::Connector::make_profile ()
{
// The endpoint should be of the form:
// N.n@host:port/object_key
// or:
// host:port/object_key
TAO_Profile *profile = 0;
ACE_NEW_THROW_EX (profile,
TAO::HTIOP::Profile (this->orb_core ()),
CORBA::NO_MEMORY (
CORBA::SystemException::_tao_minor_code (
TAO::VMCID,
ENOMEM),
CORBA::COMPLETED_NO));
return profile;
}
int
TAO::HTIOP::Connector::check_prefix (const char *endpoint)
{
// Check for a valid string
if (!endpoint || !*endpoint)
return -1; // Failure
const char *protocol[] = { "htiop" };
size_t slot = ACE_OS::strchr (endpoint, ':') - endpoint;
size_t len0 = ACE_OS::strlen (protocol[0]);
// Check for the proper prefix in the IOR. If the proper prefix
// isn't in the IOR then it is not an IOR we can use.
if (slot == len0
&& ACE_OS::strncasecmp (endpoint, protocol[0], len0) == 0)
return 0;
return -1;
// Failure: not an TAO_HTIOP IOR
// DO NOT throw an exception here.
}
char
TAO::HTIOP::Connector::object_key_delimiter () const
{
return TAO::HTIOP::Profile::object_key_delimiter_;
}
TAO::HTIOP::Endpoint *
TAO::HTIOP::Connector::remote_endpoint (TAO_Endpoint *endpoint)
{
if (endpoint->tag () != OCI_TAG_HTIOP_PROFILE)
return 0;
TAO::HTIOP::Endpoint *htiop_endpoint =
dynamic_cast<TAO::HTIOP::Endpoint *> (endpoint );
if (htiop_endpoint == 0)
return 0;
return htiop_endpoint;
}
TAO_END_VERSIONED_NAMESPACE_DECL
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