blob: 1f97d69b84a61dae1727605918087cc5050a2f16 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
import base64
import gzip
import json
class RZCommit():
"""
Rhizi Commit object
Currently this object is substituted by either a diff object, this currently
acts as a model stub.
"""
@staticmethod
def diff_obj_from_blob(blob):
"""
@return json.loads(gzip_decompress(base64_decode(blob)))
"""
blob_gzip = base64.decodestring(blob)
blob = gzip.zlib.decompress(blob_gzip)
return json.loads(blob)
@staticmethod
def blob_from_diff_obj(obj):
"""
@return: blob = base64(gzip(json.dumps(obj)))
"""
obj_str = json.dumps(obj)
blob_gzip = gzip.zlib.compress(obj_str)
blob_base64 = base64.encodestring(blob_gzip)
return blob_base64
class Link():
"""
documentation anchor - this class currently carries no implementation
and only acts as a documentation anchor
link['__src'] - meta attribute for link source object
link['__dst'] - meta attribute for link destination object
"""
def __init__(self, src=None, dst=None):
assert False, 'currently unused'
class Link_Ptr(dict):
"""
link['__src_id'] - meta attribute for link source id
link['__dst_id'] - meta attribute for link destination id
"""
def __init__(self, src_id=None, dst_id=None):
assert None != src_id or None != dst_id
self['__src_id'] = src_id
self['__dst_id'] = dst_id
@property
def src_id(self):
return self['__src_id']
@property
def dst_id(self):
return self['__dst_id']
@staticmethod
def link_ptr(src_id=None, dst_id=None):
"""
init from src_id or dst_id attributes - at least one must be provided
"""
return Link.Link_Ptr(src_id, dst_id)
class RZDoc():
def __init__(self, rzdoc_name=None):
self.id = None # set upon DB commit
self.name = rzdoc_name
def __eq__(self, other):
if not isinstance(other, RZDoc): return False
assert self.id != None and other.id != None
return self.id == other.id
def __hash__(self):
assert self.id != None
return self.id.__hash__()
def __str__(self):
return 'rzdoc: name: %s' % (self.name)
|
