added: new method for load json file instead of yaml because of the performance issues

timmy/nodes.py

@@ -19,7 +19,7 @@
 main module
 """
 
-import yaml
+import json
 import os
 import shutil
 import logging
@@ -375,9 +375,9 @@ class NodeManager(object):
         self.nodes = {}
         self.fuel_init()
         if nodes_json:
-            self.nodes_json = tools.load_yaml_file(nodes_json)
+            self.nodes_json = tools.load_json_file(nodes_json)
         else:
-            self.nodes_json = yaml.load(self.get_nodes_json())
+            self.nodes_json = json.loads(self.get_nodes_json())
         self.nodes_init()
         # apply soft-filter on all nodes
         for node in self.nodes.values():

timmy/tools.py

@@ -26,6 +26,7 @@ import threading
 from multiprocessing import Process, Queue, BoundedSemaphore
 import subprocess
 import yaml
+import json
 from flock import FLock
 from tempfile import gettempdir
 from pipes import quote
@@ -172,6 +173,23 @@ def get_dir_structure(rootdir):
     return dir
 
 
+def load_json_file(filename):
+    """
+    Loads json data from file
+    """
+    logger = logging.getLogger(__name__)
+    try:
+        with open(filename, 'r') as f:
+            return json.load(f)
+    except IOError as e:
+        logger.critical("I/O error(%s): file: %s; msg: %s" %
+                        (e.errno, e.filename, e.strerror))
+        sys.exit(1)
+    except ValueError:
+        logger.critical("Could not convert data")
+        sys.exit(1)
+
+
 def load_yaml_file(filename):
     """
     Loads yaml data from file