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Unified Diff: third_party/gsutil/20110627/boto/boto/sqs/message.py

Issue 10199002: Upgrade gsutil to 3.4 (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Addressed comments Created 8 years, 8 months ago
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Index: third_party/gsutil/20110627/boto/boto/sqs/message.py
diff --git a/third_party/gsutil/20110627/boto/boto/sqs/message.py b/third_party/gsutil/20110627/boto/boto/sqs/message.py
deleted file mode 100644
index 8fabd478485afa54f4d8fac9ea3f1392eca80e97..0000000000000000000000000000000000000000
--- a/third_party/gsutil/20110627/boto/boto/sqs/message.py
+++ /dev/null
@@ -1,251 +0,0 @@
-# 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.
-
-"""
-SQS Message
-
-A Message represents the data stored in an SQS queue. The rules for what is allowed within an SQS
-Message are here:
-
- http://docs.amazonwebservices.com/AWSSimpleQueueService/2008-01-01/SQSDeveloperGuide/Query_QuerySendMessage.html
-
-So, at it's simplest level a Message just needs to allow a developer to store bytes in it and get the bytes
-back out. However, to allow messages to have richer semantics, the Message class must support the
-following interfaces:
-
-The constructor for the Message class must accept a keyword parameter "queue" which is an instance of a
-boto Queue object and represents the queue that the message will be stored in. The default value for
-this parameter is None.
-
-The constructor for the Message class must accept a keyword parameter "body" which represents the
-content or body of the message. The format of this parameter will depend on the behavior of the
-particular Message subclass. For example, if the Message subclass provides dictionary-like behavior to the
-user the body passed to the constructor should be a dict-like object that can be used to populate
-the initial state of the message.
-
-The Message class must provide an encode method that accepts a value of the same type as the body
-parameter of the constructor and returns a string of characters that are able to be stored in an
-SQS message body (see rules above).
-
-The Message class must provide a decode method that accepts a string of characters that can be
-stored (and probably were stored!) in an SQS message and return an object of a type that is consistent
-with the "body" parameter accepted on the class constructor.
-
-The Message class must provide a __len__ method that will return the size of the encoded message
-that would be stored in SQS based on the current state of the Message object.
-
-The Message class must provide a get_body method that will return the body of the message in the
-same format accepted in the constructor of the class.
-
-The Message class must provide a set_body method that accepts a message body in the same format
-accepted by the constructor of the class. This method should alter to the internal state of the
-Message object to reflect the state represented in the message body parameter.
-
-The Message class must provide a get_body_encoded method that returns the current body of the message
-in the format in which it would be stored in SQS.
-"""
-
-import base64
-import StringIO
-from boto.sqs.attributes import Attributes
-from boto.exception import SQSDecodeError
-
-class RawMessage:
- """
- Base class for SQS messages. RawMessage does not encode the message
- in any way. Whatever you store in the body of the message is what
- will be written to SQS and whatever is returned from SQS is stored
- directly into the body of the message.
- """
-
- def __init__(self, queue=None, body=''):
- self.queue = queue
- self.set_body(body)
- self.id = None
- self.receipt_handle = None
- self.md5 = None
- self.attributes = Attributes(self)
-
- def __len__(self):
- return len(self.encode(self._body))
-
- def startElement(self, name, attrs, connection):
- if name == 'Attribute':
- return self.attributes
- return None
-
- def endElement(self, name, value, connection):
- if name == 'Body':
- self.set_body(self.decode(value))
- elif name == 'MessageId':
- self.id = value
- elif name == 'ReceiptHandle':
- self.receipt_handle = value
- elif name == 'MD5OfMessageBody':
- self.md5 = value
- else:
- setattr(self, name, value)
-
- def encode(self, value):
- """Transform body object into serialized byte array format."""
- return value
-
- def decode(self, value):
- """Transform seralized byte array into any object."""
- return value
-
- def set_body(self, body):
- """Override the current body for this object, using decoded format."""
- self._body = body
-
- def get_body(self):
- return self._body
-
- def get_body_encoded(self):
- """
- This method is really a semi-private method used by the Queue.write
- method when writing the contents of the message to SQS.
- You probably shouldn't need to call this method in the normal course of events.
- """
- return self.encode(self.get_body())
-
- def delete(self):
- if self.queue:
- return self.queue.delete_message(self)
-
- def change_visibility(self, visibility_timeout):
- if self.queue:
- self.queue.connection.change_message_visibility(self.queue,
- self.receipt_handle,
- visibility_timeout)
-
-class Message(RawMessage):
- """
- The default Message class used for SQS queues. This class automatically
- encodes/decodes the message body using Base64 encoding to avoid any
- illegal characters in the message body. See:
-
- http://developer.amazonwebservices.com/connect/thread.jspa?messageID=49680%EC%88%90
-
- for details on why this is a good idea. The encode/decode is meant to
- be transparent to the end-user.
- """
-
- def encode(self, value):
- return base64.b64encode(value)
-
- def decode(self, value):
- try:
- value = base64.b64decode(value)
- except:
- raise SQSDecodeError('Unable to decode message', self)
- return value
-
-class MHMessage(Message):
- """
- The MHMessage class provides a message that provides RFC821-like
- headers like this:
-
- HeaderName: HeaderValue
-
- The encoding/decoding of this is handled automatically and after
- the message body has been read, the message instance can be treated
- like a mapping object, i.e. m['HeaderName'] would return 'HeaderValue'.
- """
-
- def __init__(self, queue=None, body=None, xml_attrs=None):
- if body == None or body == '':
- body = {}
- Message.__init__(self, queue, body)
-
- def decode(self, value):
- try:
- msg = {}
- fp = StringIO.StringIO(value)
- line = fp.readline()
- while line:
- delim = line.find(':')
- key = line[0:delim]
- value = line[delim+1:].strip()
- msg[key.strip()] = value.strip()
- line = fp.readline()
- except:
- raise SQSDecodeError('Unable to decode message', self)
- return msg
-
- def encode(self, value):
- s = ''
- for item in value.items():
- s = s + '%s: %s\n' % (item[0], item[1])
- return s
-
- def __getitem__(self, key):
- if self._body.has_key(key):
- return self._body[key]
- else:
- raise KeyError(key)
-
- def __setitem__(self, key, value):
- self._body[key] = value
- self.set_body(self._body)
-
- def keys(self):
- return self._body.keys()
-
- def values(self):
- return self._body.values()
-
- def items(self):
- return self._body.items()
-
- def has_key(self, key):
- return self._body.has_key(key)
-
- def update(self, d):
- self._body.update(d)
- self.set_body(self._body)
-
- def get(self, key, default=None):
- return self._body.get(key, default)
-
-class EncodedMHMessage(MHMessage):
- """
- The EncodedMHMessage class provides a message that provides RFC821-like
- headers like this:
-
- HeaderName: HeaderValue
-
- This variation encodes/decodes the body of the message in base64 automatically.
- The message instance can be treated like a mapping object,
- i.e. m['HeaderName'] would return 'HeaderValue'.
- """
-
- def decode(self, value):
- try:
- value = base64.b64decode(value)
- except:
- raise SQSDecodeError('Unable to decode message', self)
- return MHMessage.decode(self, value)
-
- def encode(self, value):
- value = MHMessage.encode(self, value)
- return base64.b64encode(value)
-
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