[#420] store integer codes & strings for access levels

Author: d-w-moore

irods/access.py

@@ -1,5 +1,43 @@
+import collections
+
 class iRODSAccess(object):
 
+    codes = { key:value for key,value in dict(  # copied from iRODS server code:
+        null                 = 1000,            # server/core/include/irods/catalog_utilities.hpp
+        execute              = 1010,
+        read_annotation      = 1020,
+        read_system_metadata = 1030,
+        read_metadata        = 1040,
+        read_object          = 1050,
+        write_annotation     = 1060,
+        create_metadata      = 1070,
+        modify_metadata      = 1080,
+        delete_metadata      = 1090,
+        administer_object    = 1100,
+        create_object        = 1110,
+        modify_object        = 1120,
+        delete_object        = 1130,
+        create_token         = 1140,
+        delete_token         = 1150,
+        curate               = 1160,
+        own                  = 1200
+    ).items() if key in (
+            # These are copied from ichmod help text.
+            'own',
+            'delete_object',
+            'write', 'modify_object',
+            'create_object',
+            'delete_metadata',
+            'modify_metadata',
+            'create_metadata',
+            'read', 'read_object',
+            'read_metadata',
+            'null'
+        )
+    }
+
+    strings = collections.OrderedDict(sorted((number,string) for string,number in codes.items()))
+
     def __init__(self, access_name, path, user_name='', user_zone='', user_type=None):
         self.access_name = access_name
         self.path = path