--- /dev/null
+# ==================================================================================
+# 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.
+# ==================================================================================
+
+# This initialization script reads in a json from the specified config map path
+# to set up the initializations (route config map, variables etc) for the main
+# xapp process
+
+import json;
+import sys;
+import os;
+import signal;
+import time;
+import ast;
+
+def signal_handler(signum, frame):
+ print("Received signal {0}\n".format(signum));
+ if(xapp_subprocess == None or xapp_pid == None):
+ print("No xapp running. Quiting without sending signal to xapp\n");
+ else:
+ print("Sending signal {0} to xapp ...".format(signum));
+ xapp_subprocess.send_signal(signum);
+
+
+def parseConfigJson(config):
+
+ for k1 in config.keys():
+ if k1 in ParseSection:
+ result = ParseSection[k1](config);
+ if result == False:
+ return False;
+
+
+# for k2 in config[k1].keys():
+ #print(k2);
+# if k2 in ParseSection:
+# result = ParseSection[k2](config[k1]);
+# if result == False:
+# return False;
+
+
+
+def getMessagingInfo(config):
+ if 'messaging' in config.keys() and 'ports' in config['messaging'].keys():
+ port_list = config['messaging']['ports']
+ for portdesc in port_list :
+ if 'port' in portdesc.keys() and 'name' in portdesc.keys() and portdesc['name'] == 'rmr-data':
+ lport = portdesc['port']
+ # Set the environment variable
+ os.environ["BOUNCER_PORT"] = str(lport)
+ return True;
+ if lport == 0:
+ print("Error! No valid listening port");
+ return False;
+
+def getXappName(config):
+ myKey = "xapp_name";
+ if myKey not in config.keys():
+ print(("Error ! No information found for {0} in config\n".format(myKey)));
+ return False;
+
+ xapp_name = config[myKey];
+ print("Xapp Name is: " + xapp_name);
+ os.environ["XAPP_NAME"] = xapp_name;
+
+default_routing_file = "/tmp/routeinfo/routes.txt";
+lport = 0;
+ParseSection = {};
+ParseSection["xapp_name"] = getXappName;
+ParseSection["messaging"] = getMessagingInfo;
+
+
+#================================================================
+if __name__ == "__main__":
+
+ import subprocess;
+ cmd = ["/usr/local/bin/b_xapp_main"];
+
+ if len(sys.argv) > 1:
+ config_file = sys.argv[1];
+ else:
+ print("Error! No configuration file specified\n");
+ sys.exit(1);
+
+ if len(sys.argv) > 2:
+ cmd[0] = sys.argv[2];
+
+ with open(config_file, 'r') as f:
+ try:
+ config = json.load(f);
+ except Exception as e:
+ print(("Error loading json file from {0}. Reason = {1}\n".format(config_file, e)));
+ sys.exit(1);
+
+ result = parseConfigJson(config);
+ time.sleep(10);
+ if result == False:
+ print("Error parsing json. Not executing xAPP");
+ sys.exit(1);
+
+ else:
+
+ # Register signal handlers
+ signal.signal(signal.SIGINT, signal_handler);
+ signal.signal(signal.SIGTERM, signal_handler);
+
+ # Start the xAPP
+ #print("Executing xAPP ....");
+ xapp_subprocess = subprocess.Popen(cmd, shell = False, stdin=None, stdout=None, stderr = None);
+ xapp_pid = xapp_subprocess.pid;
+
+ # Periodically poll the process every 5 seconds to check if still alive
+ while(1):
+ xapp_status = xapp_subprocess.poll();
+ if xapp_status == None:
+ time.sleep(5);
+ else:
+ print("XaPP terminated via signal {0}\n".format(-1 * xapp_status));
+ break;
+