4 * Created on: Aug 11, 2010
10 #include "ServerEventThread.hh"
11 #include "OrbServerImpl.hh"
12 #include "ClientServerCommon.hh"
13 #include "BusMessageInternal.hh"
16 using namespace plpbus;
17 using namespace plpbus_orb;
19 static omni_mutex server_thread_mutex;
20 static omni_condition server_thread_shutdown_signal(&server_thread_mutex);
22 OrbServerImpl::OrbServerImpl()
26 _server_thread_count = 0;
27 _shutdown_pending = 0;
31 OrbServerImpl::~OrbServerImpl()
33 log_info("OrbServerImpl destroyed.\n");
36 void OrbServerImpl::send_message_and_request_response(OrbClient_ptr response_listener_param,
42 if (CORBA::is_nil(response_listener_param) == false) {
43 if (_listener != NULL) {
44 log_debug("send_message_and_request_response(): %s, server callback != NULL\n", msg_req);
45 _listener->request_received(msg_req, &msg_rsp);
46 log_debug("send_message_and_request_response(), request_received\n");
47 response_listener_param->receive_response_message(msg_rsp);
50 log_error("send_message_and_request_response() error, server callback == NULL\n");
54 log_error("invalid callback object received.\n");
58 char *OrbServerImpl::send_message_and_wait_response(const char* msg_req_param, ::CORBA::Long& err_flg) {
64 if (_listener != NULL) {
65 log_debug("send_message_and_wait_response(): %s, server_callback != NULL\n", msg_req_param);
66 _listener->request_received(msg_req_param, &msg_rsp);
69 log_error("send_message_and_wait_response() error, server callback == NULL\n");
70 msg_rsp = strdup(msg_req_param);
73 ret_val = CORBA::string_dup(msg_rsp);
77 void OrbServerImpl::send_dataitem_message_and_request_response(OrbClient_ptr response_listener_param,
78 const ::DataItemSequence& msg_req_param) {
81 DataItemSequence *seq;
83 if (CORBA::is_nil(response_listener_param) == false) {
84 if (_listener != NULL) {
85 msg_req = new BusMessageInternal(msg_req_param);
86 log_debug("send_dataitem_message_and_request_response(), server_callback != NULL\n");
87 log_debug("msg_req:\n");
90 _listener->request_received(msg_req, &msg_rsp);
91 seq = (DataItemSequence *)msg_rsp->_dataItemSeq;
92 log_debug("msg_rsp length: %ld\n", seq->length());
94 response_listener_param->receive_response_dataitem_sequence(*seq);
97 log_error("send_dataitem_message_and_request_response() error, server_callback == NULL\n");
102 CORBA::Long OrbServerImpl::send_dataitem_message_and_wait_response(const DataItemSequence& req_seq_param,
103 DataItemSequence_out rsp_seq_param) {
106 DataItemSequence *seq;
110 msg_req = new BusMessageInternal(req_seq_param);
111 _listener->request_received(msg_req, &msg_rsp);
112 if (msg_rsp != NULL) {
113 seq = (DataItemSequence *)msg_rsp->_dataItemSeq;
116 seq = new DataItemSequence();
118 rsp_seq_param._data = seq;
123 void OrbServerImpl::add_event_listener(OrbClient_ptr client_param,
125 CORBA::UShort period_secs)
127 ServerEventThread *srvr_thread;
129 if (CORBA::is_nil(client_param) == false) {
130 log_debug("add_event_listener()\n");
131 server_thread_mutex.lock();
132 _server_thread_count++;
133 server_thread_mutex.unlock();
134 srvr_thread = new ServerEventThread(client_param, msg, period_secs, this);
135 srvr_thread->start();
138 cerr << "Failed to add event listener, listener NULL.\n";
142 void OrbServerImpl::shutdown()
144 omni_mutex_lock sync(server_thread_mutex);
145 if (is_shutdown_pending() == 0) {
146 cout << "shutdown request received!" << endl;
147 // Tell the servers to exit, and wait for them to do so.
148 _shutdown_pending = 1;
149 while(_server_thread_count > 0) {
150 server_thread_shutdown_signal.wait();
152 // Shutdown the ORB (but do not wait for completion). This also
153 // causes the main thread to unblock from CORBA::ORB::run().
158 int OrbServerImpl::init() {
166 _orb = CORBA::ORB_init(argc, argv);
168 _poa = create_poa(_orb);
172 cout << "init() failed" << endl;
177 int OrbServerImpl::launch(const char *server_name)
179 CORBA::Object_var server_ref;
180 PortableServer::ObjectId_var server_id;
183 CosNaming::NamingContext_var naming_context;
186 POA_plpbus_orb::OrbServer_tie<OrbServerImpl> server_impl(this);
187 server_id = _poa->activate_object(&server_impl);
188 server_ref = server_impl._this();
189 //this->_remove_ref();
190 naming_context = get_service_naming_context(CONST_CONTEXT_NAME__PLPBUS, CONST_CONTEXT_KIND__PLPBUS);
191 if (naming_context != NULL) {
192 ok_flg = bind_naming_context_and_service(naming_context,
195 CONST_CONTEXT_KIND__PLPBUS);
196 if (ok_flg == true) {
197 cout << "Registered to naming service: " << server_name << endl;
202 cout << "Failed to register to naming service: " << server_name << endl;
208 PortableServer::POA_var OrbServerImpl::create_poa(CORBA::ORB_var orb) {
209 PortableServer::POA_var ret_val;
210 CORBA::Object_var poa_obj;
211 CORBA::PolicyList policy_list;
212 CORBA::Any policyVal;
213 PortableServer::POAManager_var poa_man;
214 PortableServer::POA_var rootpoa;
217 poa_obj = orb->resolve_initial_references(CONST_ROOT_POA_NAME);
218 if (poa_obj != NULL) {
219 rootpoa = PortableServer::POA::_narrow(poa_obj);
220 if (rootpoa != NULL) {
221 poa_man = rootpoa->the_POAManager();
222 if (poa_man != NULL) {
224 // bidirectional policy
225 policy_list.length(1);
226 policyVal <<= BiDirPolicy::BOTH;
227 policy_list[0] = orb->create_policy(BiDirPolicy::BIDIRECTIONAL_POLICY_TYPE, policyVal);
228 ret_val = rootpoa->create_POA(CONST_ROOT_POA_BIDIR_POLICY_NAME,
235 cerr << "Failed to create RootPOA." << endl;
240 CosNaming::NamingContext_var OrbServerImpl::get_service_naming_context(const char *service_name_param,
241 const char *service_kind_param)
243 CosNaming::NamingContext_var ret_val;
244 CosNaming::NamingContext_var ns_context;
245 CORBA::Object_var ns_obj;
246 CORBA::Object_var service_obj;
247 CosNaming::Name context_data;
251 // get nameservice reference
252 log_debug("get_service_naming_context() 1\n");
253 ns_obj = _orb->resolve_initial_references(CONST_NAME_SERVICE_NAME);
254 log_debug("get_service_naming_context() 2\n");
255 // get name service context
256 ns_context = CosNaming::NamingContext::_narrow(ns_obj);
257 log_debug("get_service_naming_context() 3\n");
258 if (CORBA::is_nil(ns_context) == false) {
259 context_data.length(1);
260 context_data[0].id = service_name_param;
261 context_data[0].kind = service_kind_param;
262 log_debug("get_service_naming_context() 4\n");
264 service_obj = ns_context->resolve(context_data);
266 catch(CosNaming::NamingContext::NotFound& ex) {
267 log_error("Failed to get context from name service for %s. Context does not yet exist, but will try to create.\n", service_name_param);
270 log_debug("get_service_naming_context() 5\n");
271 if (CORBA::is_nil(service_obj)) {
272 // not found, try to bind the new context to name service
273 log_debug("get_service_naming_context() 6\n");
274 ret_val = ns_context->bind_new_context(context_data);
275 log_debug("get_service_naming_context() 7\n");
276 if (CORBA::is_nil(ret_val) ) {
277 log_error("Failed to create new context to name service for %s.\n", service_name_param);
281 log_debug("get_service_naming_context() 8\n");
282 ret_val = CosNaming::NamingContext::_narrow(service_obj);
283 log_debug("get_service_naming_context() 9\n");
284 if (CORBA::is_nil(ret_val) ) {
285 log_error("Failed to get existing context from name service for %s, narrowing failed.\n", service_name_param);
289 catch(CosNaming::NamingContext::AlreadyBound& ex) {
290 log_error("Failed to get context from name service for %s. Context with same name already exist.\n", service_name_param);
294 catch (CORBA::ORB::InvalidName&) {
295 // This should not happen!
296 log_error("Failed to get context from name service for %s, name service does not exist.\n", service_name_param);
298 catch(CORBA::TRANSIENT& ex) {
299 log_error("Failed to get context from name service for %s, verify that name service is running.\n", service_name_param);
301 catch (CORBA::NO_RESOURCES&) {
302 log_error("Failed to get context from name service for %s, Name service is not running or has configuration problem.\n", service_name_param);
303 log_error("Check-list:\n");
304 log_error("If you have OMNIORB_CONFIG environment variable defined, verify that omniORB.cfg file exist in that location.\n");
305 log_error("If you do not have OMNIORB_CONFIG environment variable defined, verify that you have /etc/omniORB.cfg file\n");
306 log_error("Verify that InitRef line is defined in omniORB.cfg file.\n");
308 catch(CORBA::SystemException& ex) {
309 log_error("Failed to get context from name service for %s, system error.\n", service_name_param);
311 log_debug("get_service_naming_context() done\n");
315 bool OrbServerImpl::bind_naming_context_and_service(CosNaming::NamingContext_var service_context_param,
316 CORBA::Object_ptr service_ref_param,
317 const char *service_name_param,
318 const char *service_kind_param)
321 CosNaming::Name context_data;
325 context_data.length(1);
326 context_data[0].id = service_name_param;
327 context_data[0].kind = service_kind_param;
329 service_context_param->bind(context_data, service_ref_param);
332 catch(CosNaming::NamingContext::AlreadyBound& ex) {
334 * service existed already for the naming context with similar description.
335 * Replace the existing one with a new one.
337 cout << "service " << service_name_param << " existed, replacing it." << endl;
338 service_context_param->rebind(context_data, service_ref_param);
342 catch (CosNaming::NamingContext::InvalidName&) {
343 cerr << "Could not register service to name server, invalid service name." << endl;
345 catch (CosNaming::NamingContext::NotFound&) {
346 cerr << "Could not register service to name server, service object reference is invalid." << endl;
348 catch (CosNaming::NamingContext::CannotProceed&) {
349 // This should not happen!
350 cerr << "Could not register service to name server, unknown error." << endl;
352 catch(CORBA::SystemException& ex) {
353 cerr << "Could not register service to name server, unknown error." << endl;
358 int OrbServerImpl::add_server_listener(IServerListener *listener_param)
363 cout << "register_request_received_callback() started" << endl;
364 _listener = listener_param;
365 cout << "register_callback() done" << endl;
369 int OrbServerImpl::is_shutdown_pending() {
370 return _shutdown_pending;
373 void OrbServerImpl::server_thread_closed() {
374 bool send_signal = false;
376 server_thread_mutex.lock();
377 _server_thread_count--;
378 if (_server_thread_count == 0) {
381 server_thread_mutex.unlock();
382 if (send_signal == true) {
383 server_thread_shutdown_signal.signal();