X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=Bouncer%2Fsrc%2Fxapp.cc;fp=Bouncer%2Fsrc%2Fxapp.cc;h=64beee4a8708c2036660344767e52b6c0b8f7dd1;hb=ff20129c8f517cca6e0b4de6544ff64aebe7c171;hp=0000000000000000000000000000000000000000;hpb=35882dccfbc1b35af0e5704e14e0ecb9eba0f52a;p=ric-app%2Fbouncer.git

diff --git a/Bouncer/src/xapp.cc b/Bouncer/src/xapp.cc
new file mode 100644
index 0000000..64beee4
--- /dev/null
+++ b/Bouncer/src/xapp.cc
@@ -0,0 +1,254 @@
+/*
+# ==================================================================================
+# Copyright (c) 2020 HCL Technologies Limited.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==================================================================================
+*/
+
+#include "xapp.hpp"
+#define BUFFER_SIZE 1024
+
+ Xapp::Xapp(XappSettings &config, XappRmr &rmr){
+
+	  rmr_ref = &rmr;
+	  config_ref = &config;
+	  xapp_mutex = NULL;
+	  subhandler_ref = NULL;
+	  return;
+  }
+
+Xapp::~Xapp(void){
+
+	//Joining the threads
+	int threadcnt = xapp_rcv_thread.size();
+		for(int i=0; i<threadcnt; i++){
+			if(xapp_rcv_thread[i].joinable())
+				xapp_rcv_thread[i].join();
+	}
+	xapp_rcv_thread.clear();
+
+	if(xapp_mutex!=NULL){
+		xapp_mutex->~mutex();
+		delete xapp_mutex;
+	}
+};
+
+//Stop the xapp. Note- To be run only from unit test scripts.
+void Xapp::stop(void){
+  // Get the mutex lock
+	std::lock_guard<std::mutex> guard(*xapp_mutex);
+	rmr_ref->set_listen(false);
+	rmr_ref->~XappRmr();
+
+	//Detaching the threads....not sure if this is the right way to stop the receiver threads.
+	//Hence function should be called only in Unit Tests
+	int threadcnt = xapp_rcv_thread.size();
+	for(int i=0; i<threadcnt; i++){
+		xapp_rcv_thread[i].detach();
+	}
+	sleep(10);
+}
+
+void Xapp::startup(SubscriptionHandler &sub_ref) {
+
+	subhandler_ref = &sub_ref;
+	set_rnib_gnblist();
+
+	sleep(70);
+
+	//send subscriptions.
+	startup_subscribe_requests();
+
+	//read A1 policies
+	//startup_get_policies();
+	return;
+}
+void Xapp::Run(){
+	rmr_ref->set_listen(true);
+	if(xapp_mutex == NULL){
+		xapp_mutex = new std::mutex();
+	}
+	std::lock_guard<std::mutex> guard(*xapp_mutex);
+
+	for(int j=0; j < _callbacks.size(); j++){
+		std::thread th_recv([&](){ rmr_ref->xapp_rmr_receive(std::move(_callbacks[j]), rmr_ref);});
+		xapp_rcv_thread.push_back(std::move(th_recv));
+	}
+
+	return;
+}
+
+//Starting a seperate single receiver
+void Xapp::start_xapp_receiver(XappMsgHandler& mp_handler){
+	//start a receiver thread. Can be multiple receiver threads for more than 1 listening port.
+	rmr_ref->set_listen(true);
+	if(xapp_mutex == NULL){
+		xapp_mutex = new std::mutex();
+	}
+
+	mdclog_write(MDCLOG_INFO,"Receiver Thread file= %s, line=%d",__FILE__,__LINE__);
+	std::lock_guard<std::mutex> guard(*xapp_mutex);
+	std::thread th_recv([&](){ rmr_ref->xapp_rmr_receive(std::move(mp_handler), rmr_ref);});
+	xapp_rcv_thread.push_back(std::move(th_recv));
+	return;
+}
+
+void Xapp::shutdown(){
+	return;
+}
+
+
+void Xapp::startup_subscribe_requests(void ){
+
+   bool res;
+   size_t data_size = ASN_BUFF_MAX_SIZE;
+   unsigned char	data[data_size];
+   unsigned char meid[RMR_MAX_MEID];
+   std::string xapp_id = config_ref->operator [](XappSettings::SettingName::XAPP_ID);
+
+   mdclog_write(MDCLOG_INFO,"Preparing to send subscription in file= %s, line=%d",__FILE__,__LINE__);
+
+   auto gnblist = get_rnib_gnblist();
+
+   int sz = gnblist.size();
+
+   if(sz <= 0)
+	   mdclog_write(MDCLOG_INFO,"Subscriptions cannot be sent as GNBList in RNIB is NULL");
+
+   for(int i = 0; i<sz; i++){
+
+	 //give the message to subscription handler, along with the transmitter.
+	 strcpy((char*)meid,gnblist[i].c_str());
+
+
+	 subscription_helper  din;
+	 subscription_helper  dout;
+
+	 subscription_request sub_req;
+	 subscription_request sub_recv;
+
+	 unsigned char buf[BUFFER_SIZE];
+	 size_t buf_size = BUFFER_SIZE;
+	 bool res;
+
+
+	 //Random Data  for request
+	 int request_id = 1;
+	 int function_id = 0;
+	 std::string event_def = "01";
+
+	 din.set_request(request_id);
+	 din.set_function_id(function_id);
+	 din.set_event_def(event_def.c_str(), event_def.length());
+
+	 std::string act_def = "01";
+
+	 din.add_action(1,0,(void*)act_def.c_str(), act_def.length(), 0);
+
+	 res = sub_req.encode_e2ap_subscription(&buf[0], &buf_size, din);
+
+ 	 xapp_rmr_header rmr_header;
+ 	 rmr_header.message_type = RIC_SUB_REQ;
+ 	 rmr_header.payload_length = buf_size; //data_size
+  	 strcpy((char*)rmr_header.meid,gnblist[i].c_str());
+
+ 	 mdclog_write(MDCLOG_INFO,"Sending subscription in file= %s, line=%d for MEID %s",__FILE__,__LINE__, meid);
+         
+	 auto transmitter = std::bind(&XappRmr::xapp_rmr_send,rmr_ref, &rmr_header, (void*)buf );//(void*)data);
+
+         int result = subhandler_ref->manage_subscription_request(gnblist[i], transmitter);
+         
+       	  if(result==SUBSCR_SUCCESS){
+     	      mdclog_write(MDCLOG_INFO,"Subscription SUCCESSFUL in file= %s, line=%d for MEID %s",__FILE__,__LINE__, meid);
+          }
+           else {
+	      mdclog_write(MDCLOG_ERR,"Subscription FAILED in file= %s, line=%d for MEID %s",__FILE__,__LINE__, meid);
+              }  
+   }
+
+}
+
+void Xapp::startup_get_policies(void){
+
+    int policy_id = BOUNCER_POLICY_ID;
+
+    std::string policy_query = "{\"policy_type_id\":" + std::to_string(policy_id) + "}";
+    unsigned char * message = (unsigned char *)calloc(policy_query.length(), sizeof(unsigned char));
+    memcpy(message, policy_query.c_str(),  policy_query.length());
+    xapp_rmr_header header;
+    header.payload_length = policy_query.length();
+    header.message_type = A1_POLICY_QUERY;
+    mdclog_write(MDCLOG_INFO, "Sending request for policy id %d\n", policy_id);
+    rmr_ref->xapp_rmr_send(&header, (void *)message);
+    free(message);
+
+}
+
+void Xapp::set_rnib_gnblist(void) {
+
+	   openSdl();
+
+	   void *result = getListGnbIds();
+	   if(strlen((char*)result) < 1){
+		    mdclog_write(MDCLOG_ERR, "ERROR: no data from getListGnbIds\n");
+	        return;
+	    }
+
+	    mdclog_write(MDCLOG_INFO, "GNB List in R-NIB %s\n", (char*)result);
+
+
+	    Document doc;
+	    ParseResult parseJson = doc.Parse<kParseStopWhenDoneFlag>((char*)result);
+	    if (!parseJson) {
+	    	std::cerr << "JSON parse error: %s (%u)", GetParseErrorFunc(parseJson.Code());
+	    	return;
+	    }
+
+	    if(!doc.HasMember("gnb_list")){
+	    	mdclog_write(MDCLOG_INFO, "JSON Has No GNB List Object");
+	    	return;
+	    }
+	    assert(doc.HasMember("gnb_list"));
+
+	    const Value& gnblist = doc["gnb_list"];
+	    if (gnblist.IsNull())
+	      return;
+
+	    if(!gnblist.IsArray()){
+	    	mdclog_write(MDCLOG_INFO, "GNB List is not an array");
+	    	return;
+	    }
+
+
+	   	assert(gnblist.IsArray());
+	    for (SizeType i = 0; i < gnblist.Size(); i++) // Uses SizeType instead of size_t
+	    {
+	    	assert(gnblist[i].IsObject());
+	    	const Value& gnbobj = gnblist[i];
+	    	assert(gnbobj.HasMember("inventory_name"));
+	    	assert(gnbobj["inventory_name"].IsString());
+	    	std::string name = gnbobj["inventory_name"].GetString();
+	    	rnib_gnblist.push_back(name);
+
+	    }
+	    closeSdl();
+	    return;
+
+}
+
+
+
+
+
+