Added basic logging features.

Signed-off-by: Cristiano Urban <cristiano.urban@inaf.it>

transfer_service/transfer_service.py

 #!/usr/bin/env python
 
+import logging
+
 from config import Config
 from cli_handler import CliHandler
 from job_scheduler import JobScheduler
 from log_listener import LogListener
+from redis_log_handler import RedisLogHandler
 from vospace_rest_handler import VOSpaceRestHandler
 
 
@@ -11,6 +14,18 @@ class TransferService(object):
 
     def __init__(self):
         config = Config("/etc/vos_ts/vos_ts.conf")
+        params = config.loadSection("logging")
+        self.logger = logging.getLogger(__name__)
+        logLevel = "logging." + params["log_level"]
+        logFormat = params["log_format"]
+        logFormatter = logging.Formatter(logFormat)
+        self.logger.setLevel(eval(logLevel))
+        redisLogHandler = RedisLogHandler()
+        logStreamHandler = logging.StreamHandler()
+        logStreamHandler.setFormatter(logFormatter)
+        redisLogHandler.setFormatter(logFormatter)
+        self.logger.addHandler(redisLogHandler)
+        self.logger.addHandler(logStreamHandler)
         params = config.loadSection("job_cache")
         self.cliHandler = CliHandler(params["host"], params.getint("port"), params.getint("db_sched"))
         self.vosRestHandler = VOSpaceRestHandler(params["host"], params.getint("port"), params.getint("db_sched"))
@@ -54,8 +69,7 @@ class TransferService(object):
         self.jobScheduler.start()
         self.vosRestHandler.start()
         self.cliHandler.start()
-        print("\nVOSpace Transfer Service is RUNNING...\n")
-
+        self.logger.info("========== VOSpace Transfer Service is RUNNING! ==========")
 
 ts = TransferService()
 ts.start()