configuration de la socket AF_UNIX en tant que client pour la communication avec le process KineIntercom

run.py

@@ -5,6 +5,6 @@
 
 from src import app
 print("Launch Flask KineInterCOM Configurateur Backend ...")
-application = app.create_app()
-if application:
+ret, application = app.create_app()
+if application and ret:
     application.run(host="0.0.0.0", port=6000, use_reloader=False)

src/app.py

@@ -23,6 +23,7 @@ from src.account import account
 from src.params import params
 from src.schedule import schedule
 from src.log import log as logs
+from src.manager import sock
 from src.infos import info
 
 #########################################################
@@ -37,6 +38,7 @@ def create_app(config=None, app_name=None):
         :param app_name:
         application name
     '''
+    ret = True
     if app_name is None:
         app_name = DefaultConfig.PROJECT
 
@@ -51,8 +53,9 @@ def create_app(config=None, app_name=None):
 
     configure_log(app)
     configure_blueprints(app)
+    ret = configure_connexion(app)
 
-    return app
+    return ret, app
 
 def configure_app(app=None, config=None):
     ''' configure the application with configuration file and/or object
@@ -136,3 +139,19 @@ def configure_blueprints(app=None):
     '''
     for bp in [auth, logs, account, params, schedule, info]:
         app.register_blueprint(bp)
+
+def configure_connexion(app=None):
+    ''' Confgure AF_UNIX connexion with KineIntercom
+        process
+    '''
+    ret = False
+    try:
+        sock.connect(app.config['UNIX_ADDR'])
+        ret = True
+    except TimeoutError as e:
+        app.logger.error("Erreur de connexion avec le processus KineIntercom")
+        ret = False
+    except ConnectionRefusedError as e:
+        app.logger.error("Connexion refusée avec le processus KineIntercom")
+        ret = False
+    return ret

src/config.py

@@ -42,6 +42,7 @@ class BaseConfig(object):
     MAX_CONTENT_LENGTH = 200 * 1024 * 1024 # 100 megabytes
 
     DB_PATH = os.path.join(os.getcwd(), 'db.json')
+    UNIX_ADDR = "/tmp/uds_socket"
 
 class DefaultConfig(BaseConfig):
     DEBUG = True

src/manager.py

@@ -0,0 +1,21 @@
+# -*- encoding: utf-8 -*-
+
+# @author : vincent.benoit@scle.fr
+# @brief : Client UNIX Socket Manager
+
+#########################################################
+# Importation de modules externes                       #
+
+import sys, re, os
+import socket
+
+#########################################################
+# Corps principal du programme                          #
+
+#########################################################
+# Decorators                                            #
+
+#########################################################
+# Instantiation                                         #
+
+sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)

src/params/views.py

@@ -24,6 +24,8 @@ import shutil
 import hashlib
 from werkzeug.exceptions import HTTPException
 
+from src.manager import sock
+
 #########################################################
 # Class et Methods                                      #
 
@@ -133,6 +135,15 @@ def update_params():
 
     with open(current_app.config['DB_PATH'], 'w') as f:
         json.dump(data, f)
+
+    try:
+        # send order to KineIntercom process
+        sock.send(b"RELOAD_DB\n")
+    except:
+        current_app.logger.error("Erreur d'envoi de l'ordre au processus KineIntercom")
+        abort(status.HTTP_406_NOT_ACCEPTABLE, description="Erreur d'envoi de l'ordre au processus")
+
     content = {'message':'maj parameters successful!'}
+
     return content, status.HTTP_200_OK