Add logging to Alexandria.

This will be helpful later to debug the application.

alexandria/app.py

@@ -5,6 +5,8 @@ from flask import jsonify
 from flask import request
 import sys
 import pprint
+import logging
+from logging.handlers import RotatingFileHandler
 import config
 import models
 import configuration_item
@@ -40,6 +42,7 @@ def api_driver(driver_name):
 @app.route('/shutdown', methods=['POST'])
 def shutdown():
     shutdown_server()
+    app.logger.info("Stopping Alexandria...")
     return 'Server shutting down...'
 
 @app.route('/bruno', methods=['POST'])
@@ -50,19 +53,26 @@ def bruno():
 
 @app.route('/ci', methods=['POST'])
 def create_ci():
+    pp = pprint.PrettyPrinter(indent=4)
     
     ci = configuration_item.ConfigurationItem(request.json["uuid"],
                               request.json["ip_mgmt"],
                               request.json["login"],
                               request.json["password"])
     
-    # Error cas uuid already available
+    # TODO : Error case uuid already available
+    #        Uuid malformed 
+    #        Generate a random uuid (check uuid module) if uuid = None
+    
     alexandria_cis.update({request.json["uuid"]: ci })
     
     #driver_list = conf_file.get_drivers()
     
     #for driver in driver_list:
         #driver.get(ci)
+    pp.pprint(alexandria_cis)
+    
+    app.logger.debug("Debug message")
     
     return ("ok")
 
@@ -92,6 +102,18 @@ def shutdown_server():
         raise RuntimeError('Not running with the Werkzeug Server')
     func()
 
+def configure_logger(logger,logfile): 
+    
+    formatter = logging.Formatter(
+        '%(asctime)s :: %(levelname)s :: %(message)s'
+        )
+    file_handler = RotatingFileHandler(logfile, 'a', 1000000, 1)
+
+    # Add logger to file
+    file_handler.setLevel(logging.DEBUG)
+    file_handler.setFormatter(formatter)
+    logger.addHandler(file_handler)
+
 
 class Alexandria(object):
     def __init__(self):
@@ -122,9 +144,11 @@ class Alexandria(object):
 
 
 if __name__ == "__main__":
-    # Vars  
+    # Vars
+    app_logfile = "/var/log/alexandria/alexandria.log"
+      
     global alexandria
-    
+
     alexandria = Alexandria()
     
     # Define a PrettyPrinter for debugging.
@@ -133,6 +157,9 @@ if __name__ == "__main__":
     # Define a structure to handle ci
     alexandria_cis = {}
     
+    # Configure Flask logger
+    configure_logger(app.logger, app_logfile)
+    
     
     # Debugging stuff to remove later.
     print alexandria.model.reference_items
@@ -141,6 +168,8 @@ if __name__ == "__main__":
     print alexandria.drivers.itop.driver_type
     #pp.pprint(models.EthernetInterface)  # debugging example.
     #pp.pprint(models.Manager)  # debugging example.
+    app.logger.info("Starting Alexandria...")
     app.run(port=int(alexandria.conf_file.get_alexandria_port()))
     
     
+