linkpair/linkobject.py

   1 # vim: tabstop=4 shiftwidth=4 softtabstop=4
   2 # -*- coding: utf-8 -*-
   3 #
   4
   5 class LinkObject(object):
   6     DEFAULT_TYPE = 1
   7
   8     def __init__(self, label, metadata={}):
   9         self.label = label
  10         self.metadata = metadata
  11
  12     @apply
  13     def label():
  14         def get(label):
  15             return self.label
  16
  17         def set(self, label):
  18             self.label = label
  19
  20     @apply
  21     def metadata():
  22         def get(self):
  23             return self.metadata
  24
  25         def set(self, metadata):
  26             self.metadata = metadata
  27
  28     @apply
  29     def attr():
  30         def get(self, attr):
  31             return self.metadata[attr]
  32
  33         def set(self, attr, attr_value):
  34             self.metadata[attr] = attr_value
  35
  36     def __str__(self):
  37         return self.label
  38
  39     def __repr__(self):
  40         return "{\"label\":\"" + self.label + \
  41             "\",\"meta\":" + self._blank_dict(self.metadata) + "}"
  42
  43     def _blank_dict(self, dict_object):
  44         if len(dict_object) > 0:
  45             return self._dict_to_json(dict_object)
  46         else:
  47             return "{ \"NOT_SPECIFIED\":\"1\" }"
  48
  49     def _dict_to_json(self, dict_object):
  50         json_strings = "{"
  51         for dict_key in dict_object.keys():
  52             json_strings += "\"" + dict_key + "\":\"" + dict_object[dict_key] + "\","
  53         json_strings = json_strings.rstrip(",") + "}"
  54         return json_strings
  55
  56     def __add__(self, label):
  57         return self.label + label