geni/methods/list.py

   1 from geni.util.faults import *
   2 from geni.util.excep import *
   3 from geni.util.method import Method
   4 from geni.util.parameter import Parameter, Mixed
   5 from geni.util.auth import Auth
   6 from geni.util.record import GeniRecord
   7 from geni.registry import Registries
   8
   9 class list(Method):
  10     """
  11     List the records in an authority.
  12
  13     @param cred credential string specifying the rights of the caller
  14     @param hrn human readable name of authority to list
  15     @return list of record dictionaries
  16     """
  17
  18     interfaces = ['registry']
  19
  20     accepts = [
  21         Parameter(str, "Credential string"),
  22         Parameter(str, "Human readable name (hrn)")
  23         ]
  24
  25     returns = [GeniRecord]
  26
  27     def call(self, cred, hrn):
  28
  29         self.api.auth.check(cred, 'list')
  30         records = []
  31         try:
  32             if not self.api.auth.hierarchy.auth_exists(hrn):
  33                 raise MissingAuthority(hrn)
  34             table = self.api.auth.get_auth_table(hrn)
  35             records = table.list()
  36         except MissingAuthority:
  37             # is this a foreign authority
  38             registries = Registries(self.api)
  39             credential = self.api.getCredential()
  40             for registry in registries:
  41                 if hrn.startswith(registry) and registry not in [self.api.hrn]:
  42                     records = registries[registry].list(credential, hrn)
  43                     return records
  44
  45         return records