Best Python code snippet using localstack_python
queue.py
Source: queue.py
1# -*- coding: utf-8 -*-2"""Amazon SQS queue implementation."""3from __future__ import absolute_import, unicode_literals4from vine import transform5from .message import AsyncMessage6_all__ = ['AsyncQueue']7def list_first(rs):8 """Get the first item in a list, or None if list empty."""9 return rs[0] if len(rs) == 1 else None10class AsyncQueue():11 """Async SQS Queue."""12 def __init__(self, connection=None, url=None, message_class=AsyncMessage):13 self.connection = connection14 self.url = url15 self.message_class = message_class16 self.visibility_timeout = None17 def _NA(self, *args, **kwargs):18 raise NotImplementedError()19 count_slow = dump = save_to_file = save_to_filename = save = \20 save_to_s3 = load_from_s3 = load_from_file = load_from_filename = \21 load = clear = _NA22 def get_attributes(self, attributes='All', callback=None):23 return self.connection.get_queue_attributes(24 self, attributes, callback,25 )26 def set_attribute(self, attribute, value, callback=None):27 return self.connection.set_queue_attribute(28 self, attribute, value, callback,29 )30 def get_timeout(self, callback=None, _attr='VisibilityTimeout'):31 return self.get_attributes(32 _attr, transform(33 self._coerce_field_value, callback, _attr, int,34 ),35 )36 def _coerce_field_value(self, key, type, response):37 return type(response[key])38 def set_timeout(self, visibility_timeout, callback=None):39 return self.set_attribute(40 'VisibilityTimeout', visibility_timeout,41 transform(42 self._on_timeout_set, callback,43 )44 )45 def _on_timeout_set(self, visibility_timeout):46 if visibility_timeout:47 self.visibility_timeout = visibility_timeout48 return self.visibility_timeout49 def add_permission(self, label, aws_account_id, action_name,50 callback=None):51 return self.connection.add_permission(52 self, label, aws_account_id, action_name, callback,53 )54 def remove_permission(self, label, callback=None):55 return self.connection.remove_permission(self, label, callback)56 def read(self, visibility_timeout=None, wait_time_seconds=None,57 callback=None):58 return self.get_messages(59 1, visibility_timeout,60 wait_time_seconds=wait_time_seconds,61 callback=transform(list_first, callback),62 )63 def write(self, message, delay_seconds=None, callback=None):64 return self.connection.send_message(65 self, message.get_body_encoded(), delay_seconds,66 callback=transform(self._on_message_sent, callback, message),67 )68 def write_batch(self, messages, callback=None):69 return self.connection.send_message_batch(70 self, messages, callback=callback,71 )72 def _on_message_sent(self, orig_message, new_message):73 orig_message.id = new_message.id74 orig_message.md5 = new_message.md575 return new_message76 def get_messages(self, num_messages=1, visibility_timeout=None,77 attributes=None, wait_time_seconds=None, callback=None):78 return self.connection.receive_message(79 self, number_messages=num_messages,80 visibility_timeout=visibility_timeout,81 attributes=attributes,82 wait_time_seconds=wait_time_seconds,83 callback=callback,84 )85 def delete_message(self, message, callback=None):86 return self.connection.delete_message(self, message, callback)87 def delete_message_batch(self, messages, callback=None):88 return self.connection.delete_message_batch(89 self, messages, callback=callback,90 )91 def change_message_visibility_batch(self, messages, callback=None):92 return self.connection.change_message_visibility_batch(93 self, messages, callback=callback,94 )95 def delete(self, callback=None):96 return self.connection.delete_queue(self, callback=callback)97 def count(self, page_size=10, vtimeout=10, callback=None,98 _attr='ApproximateNumberOfMessages'):99 return self.get_attributes(100 _attr, callback=transform(101 self._coerce_field_value, callback, _attr, int,102 ),...
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