root / pithos-macos / PolicyVersioningTransformer.m @ cb6abe72
History | View | Annotate | Download (3 kB)
1 |
// |
---|---|
2 |
// PolicyVersioningTransformer.m |
3 |
// pithos-macos |
4 |
// |
5 |
// Copyright 2011 GRNET S.A. All rights reserved. |
6 |
// |
7 |
// Redistribution and use in source and binary forms, with or |
8 |
// without modification, are permitted provided that the following |
9 |
// conditions are met: |
10 |
// |
11 |
// 1. Redistributions of source code must retain the above |
12 |
// copyright notice, this list of conditions and the following |
13 |
// disclaimer. |
14 |
// |
15 |
// 2. Redistributions in binary form must reproduce the above |
16 |
// copyright notice, this list of conditions and the following |
17 |
// disclaimer in the documentation and/or other materials |
18 |
// provided with the distribution. |
19 |
// |
20 |
// THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
21 |
// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
22 |
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 |
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
24 |
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
25 |
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
26 |
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
27 |
// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
28 |
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
29 |
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
30 |
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
31 |
// POSSIBILITY OF SUCH DAMAGE. |
32 |
// |
33 |
// The views and conclusions contained in the software and |
34 |
// documentation are those of the authors and should not be |
35 |
// interpreted as representing official policies, either expressed |
36 |
// or implied, of GRNET S.A. |
37 |
|
38 |
#import "PolicyVersioningTransformer.h" |
39 |
|
40 |
@implementation PolicyVersioningTransformer |
41 |
|
42 |
+ (Class)transformedValueClass { |
43 |
return [NSMutableDictionary class]; |
44 |
} |
45 |
|
46 |
+ (BOOL)allowsReverseTransformation { |
47 |
return YES; |
48 |
} |
49 |
|
50 |
- (id)transformedValue:(id)value { |
51 |
if (value == nil) |
52 |
return @"manual"; |
53 |
return [(NSDictionary *)value objectForKey:@"X-Container-Policy-Versioning"]; |
54 |
} |
55 |
|
56 |
- (id)reverseTransformedValue:(id)value { |
57 |
if (value == nil || ([(NSMutableDictionary *)value count] == 0)) |
58 |
return nil; |
59 |
|
60 |
NSString *readSharingString = nil; |
61 |
NSArray *readUsers = [(NSMutableDictionary *)value allKeysForObject:@"read"]; |
62 |
if ([readUsers count]) |
63 |
readSharingString = [NSString stringWithFormat:@"read=%@", [readUsers componentsJoinedByString:@","]]; |
64 |
NSString *writeSharingString = nil; |
65 |
|
66 |
NSArray *writeUsers = [(NSMutableDictionary *)value allKeysForObject:@"write"]; |
67 |
if ([writeUsers count]) |
68 |
writeSharingString = [NSString stringWithFormat:@"write=%@", [writeUsers componentsJoinedByString:@","]]; |
69 |
|
70 |
|
71 |
if (readSharingString) { |
72 |
if (writeSharingString) { |
73 |
return [NSString stringWithFormat:@"%@;%@", readSharingString, writeSharingString]; |
74 |
} |
75 |
return readSharingString; |
76 |
} else { |
77 |
return writeSharingString; |
78 |
} |
79 |
} |
80 |
|
81 |
+ (void)initialize { |
82 |
[[self class] setValueTransformer:[self new] forName:@"SharingDictionaryTransformer"]; |
83 |
} |
84 |
|
85 |
@end |