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# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
"""
Represents an SDB Item
"""
import base64
class Item(dict):
def __init__(self, domain, name='', active=False):
dict.__init__(self)
self.domain = domain
self.name = name
self.active = active
self.request_id = None
self.encoding = None
self.in_attribute = False
self.converter = self.domain.connection.converter
def startElement(self, name, attrs, connection):
if name == 'Attribute':
self.in_attribute = True
self.encoding = attrs.get('encoding', None)
return None
def decode_value(self, value):
if self.encoding == 'base64':
self.encoding = None
return base64.decodestring(value)
else:
return value
def endElement(self, name, value, connection):
if name == 'ItemName':
self.name = self.decode_value(value)
elif name == 'Name':
if self.in_attribute:
self.last_key = self.decode_value(value)
else:
self.name = self.decode_value(value)
elif name == 'Value':
if self.has_key(self.last_key):
if not isinstance(self[self.last_key], list):
self[self.last_key] = [self[self.last_key]]
value = self.decode_value(value)
if self.converter:
value = self.converter.decode(value)
self[self.last_key].append(value)
else:
value = self.decode_value(value)
if self.converter:
value = self.converter.decode(value)
self[self.last_key] = value
elif name == 'BoxUsage':
try:
connection.box_usage += float(value)
except:
pass
elif name == 'RequestId':
self.request_id = value
elif name == 'Attribute':
self.in_attribute = False
else:
setattr(self, name, value)
def load(self):
self.domain.get_attributes(self.name, item=self)
def save(self, replace=True):
self.domain.put_attributes(self.name, self, replace)
def delete(self):
self.domain.delete_item(self)
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