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
91
92
93
94
|
# Copyright 2011-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
module AWS
class S3
class Tree
# Represents a leaf in an {S3::Tree}.
#
# When enumerating nodes in an S3 tree, keys are yielded
# as leaf nodes (they have no children beneath them).
#
# @see Tree
# @note Generally you do not need to create leaf nodes
class LeafNode < Node
# @api private
def initialize parent, member
@parent = parent
@member = member
super()
end
# @return [Tree, BranchNode] The parent node in the tree.
attr_reader :parent
# @return [mixed] Returns the object this leaf node represents.
# @see #object
# @see #version
# @see #upload
attr_reader :member
# @return [String] the key this leaf node represents.
def key
@member.key
end
# @return [false]
def branch?
false
end
# @return [true]
def leaf?
true
end
# @return [S3Object] The object this leaf node represents.
def object
if @member.kind_of?(S3Object)
@member
else
@member.object
end
end
# @return [ObjectVersion] Returns the object version this leaf
# node represents.
def version
if @member.kind_of?(ObjectVersion)
@member
else
raise "This leaf does not represent a version"
end
end
# @return [MultipartUpload] Returns the object version this leaf
# node represents.
def upload
if @member.kind_of?(MultipartUpload)
@member
else
raise "This leaf does not represent an upload"
end
end
def inspect
"<#{self.class}:#{@member.bucket.name}:#{key}>"
end
end
end
end
end
|
