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1 # Copyright (c) 2010 Mitch Garnaat http://garnaat.org/ | 1 # Copyright (c) 2010 Mitch Garnaat http://garnaat.org/ |
2 # Copyright (c) 2010, Eucalyptus Systems, Inc. | 2 # Copyright (c) 2010, Eucalyptus Systems, Inc. |
3 # | 3 # |
4 # Permission is hereby granted, free of charge, to any person obtaining a | 4 # Permission is hereby granted, free of charge, to any person obtaining a |
5 # copy of this software and associated documentation files (the | 5 # copy of this software and associated documentation files (the |
6 # "Software"), to deal in the Software without restriction, including | 6 # "Software"), to deal in the Software without restriction, including |
7 # without limitation the rights to use, copy, modify, merge, publish, dis- | 7 # without limitation the rights to use, copy, modify, merge, publish, dis- |
8 # tribute, sublicense, and/or sell copies of the Software, and to permit | 8 # tribute, sublicense, and/or sell copies of the Software, and to permit |
9 # persons to whom the Software is furnished to do so, subject to the fol- | 9 # persons to whom the Software is furnished to do so, subject to the fol- |
10 # lowing conditions: | 10 # lowing conditions: |
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48 def characters(self, content): | 48 def characters(self, content): |
49 self.current_text += content | 49 self.current_text += content |
50 | 50 |
51 def parse(self, s): | 51 def parse(self, s): |
52 xml.sax.parseString(s, self) | 52 xml.sax.parseString(s, self) |
53 | 53 |
54 class Element(dict): | 54 class Element(dict): |
55 | 55 |
56 def __init__(self, connection=None, element_name=None, | 56 def __init__(self, connection=None, element_name=None, |
57 stack=None, parent=None, list_marker=('Set',), | 57 stack=None, parent=None, list_marker=('Set',), |
58 item_marker=('member', 'item')): | 58 item_marker=('member', 'item'), |
| 59 pythonize_name=False): |
59 dict.__init__(self) | 60 dict.__init__(self) |
60 self.connection = connection | 61 self.connection = connection |
61 self.element_name = element_name | 62 self.element_name = element_name |
62 self.list_marker = utils.mklist(list_marker) | 63 self.list_marker = utils.mklist(list_marker) |
63 self.item_marker = utils.mklist(item_marker) | 64 self.item_marker = utils.mklist(item_marker) |
64 if stack is None: | 65 if stack is None: |
65 self.stack = [] | 66 self.stack = [] |
66 else: | 67 else: |
67 self.stack = stack | 68 self.stack = stack |
| 69 self.pythonize_name = pythonize_name |
68 self.parent = parent | 70 self.parent = parent |
69 | 71 |
70 def __getattr__(self, key): | 72 def __getattr__(self, key): |
71 if key in self: | 73 if key in self: |
72 return self[key] | 74 return self[key] |
73 for k in self: | 75 for k in self: |
74 e = self[k] | 76 e = self[k] |
75 if isinstance(e, Element): | 77 if isinstance(e, Element): |
76 try: | 78 try: |
77 return getattr(e, key) | 79 return getattr(e, key) |
78 except AttributeError: | 80 except AttributeError: |
79 pass | 81 pass |
80 raise AttributeError | 82 raise AttributeError |
81 | 83 |
| 84 def get_name(self, name): |
| 85 if self.pythonize_name: |
| 86 name = utils.pythonize_name(name) |
| 87 return name |
| 88 |
82 def startElement(self, name, attrs, connection): | 89 def startElement(self, name, attrs, connection): |
83 self.stack.append(name) | 90 self.stack.append(name) |
84 for lm in self.list_marker: | 91 for lm in self.list_marker: |
85 if name.endswith(lm): | 92 if name.endswith(lm): |
86 l = ListElement(self.connection, name, self.list_marker, | 93 l = ListElement(self.connection, name, self.list_marker, |
87 self.item_marker) | 94 self.item_marker, self.pythonize_name) |
88 self[name] = l | 95 self[self.get_name(name)] = l |
89 return l | 96 return l |
90 if len(self.stack) > 0: | 97 if len(self.stack) > 0: |
91 element_name = self.stack[-1] | 98 element_name = self.stack[-1] |
92 e = Element(self.connection, element_name, self.stack, self, | 99 e = Element(self.connection, element_name, self.stack, self, |
93 self.list_marker, self.item_marker) | 100 self.list_marker, self.item_marker, |
94 self[element_name] = e | 101 self.pythonize_name) |
| 102 self[self.get_name(element_name)] = e |
95 return (element_name, e) | 103 return (element_name, e) |
96 else: | 104 else: |
97 return None | 105 return None |
98 | 106 |
99 def endElement(self, name, value, connection): | 107 def endElement(self, name, value, connection): |
100 if len(self.stack) > 0: | 108 if len(self.stack) > 0: |
101 self.stack.pop() | 109 self.stack.pop() |
102 value = value.strip() | 110 value = value.strip() |
103 if value: | 111 if value: |
104 if isinstance(self.parent, Element): | 112 if isinstance(self.parent, Element): |
105 self.parent[name] = value | 113 self.parent[self.get_name(name)] = value |
106 elif isinstance(self.parent, ListElement): | 114 elif isinstance(self.parent, ListElement): |
107 self.parent.append(value) | 115 self.parent.append(value) |
108 | 116 |
109 class ListElement(list): | 117 class ListElement(list): |
110 | 118 |
111 def __init__(self, connection=None, element_name=None, | 119 def __init__(self, connection=None, element_name=None, |
112 list_marker=['Set'], item_marker=('member', 'item')): | 120 list_marker=['Set'], item_marker=('member', 'item'), |
| 121 pythonize_name=False): |
113 list.__init__(self) | 122 list.__init__(self) |
114 self.connection = connection | 123 self.connection = connection |
115 self.element_name = element_name | 124 self.element_name = element_name |
116 self.list_marker = list_marker | 125 self.list_marker = list_marker |
117 self.item_marker = item_marker | 126 self.item_marker = item_marker |
| 127 self.pythonize_name = pythonize_name |
| 128 |
| 129 def get_name(self, name): |
| 130 if self.pythonize_name: |
| 131 name = utils.pythonize_name(name) |
| 132 return name |
118 | 133 |
119 def startElement(self, name, attrs, connection): | 134 def startElement(self, name, attrs, connection): |
120 for lm in self.list_marker: | 135 for lm in self.list_marker: |
121 if name.endswith(lm): | 136 if name.endswith(lm): |
122 l = ListElement(self.connection, name, self.item_marker) | 137 l = ListElement(self.connection, name, self.item_marker, |
123 setattr(self, name, l) | 138 pythonize_name=self.pythonize_name) |
| 139 setattr(self, self.get_name(name), l) |
124 return l | 140 return l |
125 if name in self.item_marker: | 141 if name in self.item_marker: |
126 e = Element(self.connection, name, parent=self) | 142 e = Element(self.connection, name, parent=self, |
| 143 pythonize_name=self.pythonize_name) |
127 self.append(e) | 144 self.append(e) |
128 return e | 145 return e |
129 else: | 146 else: |
130 return None | 147 return None |
131 | 148 |
132 def endElement(self, name, value, connection): | 149 def endElement(self, name, value, connection): |
133 if name == self.element_name: | 150 if name == self.element_name: |
134 if len(self) > 0: | 151 if len(self) > 0: |
135 empty = [] | 152 empty = [] |
136 for e in self: | 153 for e in self: |
137 if isinstance(e, Element): | 154 if isinstance(e, Element): |
138 if len(e) == 0: | 155 if len(e) == 0: |
139 empty.append(e) | 156 empty.append(e) |
140 for e in empty: | 157 for e in empty: |
141 self.remove(e) | 158 self.remove(e) |
142 else: | 159 else: |
143 setattr(self, name, value) | 160 setattr(self, self.get_name(name), value) |
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