sfa/senslab/parsing.py

   1
   2 # import modules used here -- sys is a very standard one
   3 import sys
   4 import httplib
   5 import json
   6 from collections import defaultdict
   7
   8 def strip_dictionnary (dict_to_strip):
   9         stripped_filter = []
  10         stripped_filterdict = {}
  11         for f in dict_to_strip :
  12                 stripped_filter.append(str(f).strip('|'))
  13
  14         stripped_filterdict = dict(zip(stripped_filter, dict_to_strip.values()))
  15
  16         return stripped_filterdict
  17
  18
  19 def filter_return_fields( dict_to_filter, return_fields):
  20         filtered_dict = {}
  21         print>>sys.stderr, " \r\n \t \tfilter_return_fields return fields %s " %(return_fields)
  22         for field in return_fields:
  23                 #print>>sys.stderr, " \r\n \t \tfield %s " %(field)
  24                 if field in dict_to_filter:
  25                         filtered_dict[field] = dict_to_filter[field]
  26         print>>sys.stderr, " \r\n \t\t filter_return_fields filtered_dict %s " %(filtered_dict)
  27         return filtered_dict
  28
  29
  30
  31 def parse_filter(list_to_filter, param_filter, type_of_list, return_fields=None) :
  32         list_type = { 'persons': {'str': 'hrn','int':'record_id'},\
  33          'keys':{'int':'key_id'},\
  34          'site':{'str':'login_base','int':'site_id'},\
  35           'node':{'str':'hostname','int':'node_id'},\
  36           'slice':{'str':'slice_hrn','int':'record_id_slice'},\
  37           'peers':{'str':'hrn'}}
  38
  39         print>>sys.stderr, " \r\n ___ parse_filter param_filter %s type %s  return fields %s " %(param_filter,type_of_list, return_fields)
  40         if  param_filter is None and return_fields is None:
  41             return list_to_filter
  42
  43         if type_of_list not in list_type:
  44                 print>>sys.stderr, " \r\n type_of_list Error  parse_filter %s " %(type_of_list)
  45                 return []
  46
  47         return_filtered_list= []
  48
  49         for item in list_to_filter:
  50                 tmp_item = {}
  51
  52                 if type(param_filter) is list :
  53                         #print>>sys.stderr, " \r\n p_filter LIST %s " %(param_filter)
  54
  55                         for p_filter in param_filter:
  56                                 #print>>sys.stderr, " \r\n p_filter %s \t item %s " %(p_filter,item)
  57                                 if type(p_filter) is int:
  58                                         if item[list_type[type_of_list]['int']] == p_filter :
  59                                                 if return_fields:
  60                                                         tmp_item = filter_return_fields(item,return_fields)
  61                                                 else:
  62                                                         tmp_item = item
  63                                                 return_filtered_list.append(tmp_item)
  64                                         #print>>sys.stderr, " \r\n 1tmp_item",tmp_item
  65
  66                                 if type(p_filter) is str:
  67                                         if item[list_type[type_of_list]['str']] == str(p_filter) :
  68                                                 print>>sys.stderr, " \r\n p_filter %s \t item %s "%(p_filter,item[list_type[type_of_list]['str']])
  69                                                 if return_fields:
  70                                                         tmp_item = filter_return_fields(item,return_fields)
  71                                                 else:
  72                                                         tmp_item = item
  73                                                 return_filtered_list.append(tmp_item)
  74                                         #print>>sys.stderr, " \r\n 2tmp_item",tmp_item
  75
  76
  77                 elif type(param_filter) is dict:
  78                         #stripped_filterdict = strip_dictionnary(param_filter)
  79                         #tmp_copy = {}
  80                         #tmp_copy = item.copy()
  81                         #print>>sys.stderr, " \r\n \t\t ________tmp_copy %s " %(tmp_copy)
  82                         #key_list = tmp_copy.keys()
  83                         #for key in key_list:
  84                                 #print>>sys.stderr, " \r\n \t\t  key %s " %(key)
  85                                 #if key not in stripped_filterdict:
  86                                         #del tmp_copy[key]
  87
  88                         #rif the item matches the filter, returns it
  89                         founditem = []
  90                         check =  [ True for  k in param_filter.keys() if 'id' in k ]
  91                         dflt= defaultdict(str,param_filter)
  92
  93
  94
  95                         #founditem =  [ item for k in dflt if item[k] in dflt[k]]
  96                         for k in dflt:
  97                             if item[k] in dflt[k]:
  98                                founditem = [item]
  99
 100                         if founditem:
 101                             if return_fields:
 102                                 print>>sys.stderr, "  \r\n \r\n parsing.py param_filter dflt %s founditem %s " %(dflt, founditem)
 103                                 tmp_item = filter_return_fields(founditem[0],return_fields)
 104                             else:
 105                                 tmp_item = founditem[0]
 106                             return_filtered_list.append(tmp_item)
 107
 108                         #print>>sys.stderr, " \r\n tmp_copy %s param_filter %s cmp = %s " %(tmp_copy, param_filter,cmp(tmp_copy, stripped_filterdict))
 109
 110                         #if cmp(tmp_copy, stripped_filterdict) == 0:
 111                                 #if return_fields:
 112                                         #tmp_item = filter_return_fields(item,return_fields)
 113                                 #else:
 114
 115                                         #tmp_item = item
 116                                 #return_filtered_list.append(tmp_item)
 117         if return_filtered_list :
 118            return return_filtered_list
 119