annotate env/lib/python3.7/site-packages/boto/sqs/queue.py @ 4:79f47841a781 draft

"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:47:39 -0400
parents 26e78fe6e8c4
children
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1 # Copyright (c) 2006-2009 Mitch Garnaat http://garnaat.org/
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2 #
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3 # Permission is hereby granted, free of charge, to any person obtaining a
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4 # copy of this software and associated documentation files (the
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5 # "Software"), to deal in the Software without restriction, including
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6 # without limitation the rights to use, copy, modify, merge, publish, dis-
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7 # tribute, sublicense, and/or sell copies of the Software, and to permit
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8 # persons to whom the Software is furnished to do so, subject to the fol-
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9 # lowing conditions:
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10 #
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11 # The above copyright notice and this permission notice shall be included
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12 # in all copies or substantial portions of the Software.
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13 #
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14 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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15 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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16 # ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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17 # SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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18 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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19 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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20 # IN THE SOFTWARE.
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21
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22 """
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23 Represents an SQS Queue
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24 """
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25 from boto.compat import urllib
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26 from boto.sqs.message import Message
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27
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28
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29 class Queue(object):
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30
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31 def __init__(self, connection=None, url=None, message_class=Message):
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32 self.connection = connection
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33 self.url = url
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34 self.message_class = message_class
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35 self.visibility_timeout = None
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36
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37 def __repr__(self):
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38 return 'Queue(%s)' % self.url
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39
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40 def _id(self):
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41 if self.url:
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42 val = urllib.parse.urlparse(self.url)[2]
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43 else:
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44 val = self.url
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45 return val
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46 id = property(_id)
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47
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48 def _name(self):
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49 if self.url:
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50 val = urllib.parse.urlparse(self.url)[2].split('/')[2]
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51 else:
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52 val = self.url
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53 return val
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54 name = property(_name)
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55
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56 def _arn(self):
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57 parts = self.id.split('/')
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58 if self.connection.region.name == 'cn-north-1':
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59 partition = 'aws-cn'
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60 else:
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61 partition = 'aws'
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62 return 'arn:%s:sqs:%s:%s:%s' % (
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63 partition, self.connection.region.name, parts[1], parts[2])
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64 arn = property(_arn)
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65
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66 def startElement(self, name, attrs, connection):
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67 return None
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68
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69 def endElement(self, name, value, connection):
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70 if name == 'QueueUrl':
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71 self.url = value
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72 elif name == 'VisibilityTimeout':
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73 self.visibility_timeout = int(value)
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74 else:
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75 setattr(self, name, value)
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76
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77 def set_message_class(self, message_class):
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78 """
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79 Set the message class that should be used when instantiating
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80 messages read from the queue. By default, the class
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81 :class:`boto.sqs.message.Message` is used but this can be overriden
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82 with any class that behaves like a message.
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83
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84 :type message_class: Message-like class
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85 :param message_class: The new Message class
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86 """
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87 self.message_class = message_class
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88
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89 def get_attributes(self, attributes='All'):
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90 """
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91 Retrieves attributes about this queue object and returns
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92 them in an Attribute instance (subclass of a Dictionary).
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93
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94 :type attributes: string
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95 :param attributes: String containing one of:
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96 ApproximateNumberOfMessages,
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97 ApproximateNumberOfMessagesNotVisible,
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98 VisibilityTimeout,
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99 CreatedTimestamp,
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100 LastModifiedTimestamp,
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101 Policy
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102 ReceiveMessageWaitTimeSeconds
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103 :rtype: Attribute object
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104 :return: An Attribute object which is a mapping type holding the
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105 requested name/value pairs
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106 """
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107 return self.connection.get_queue_attributes(self, attributes)
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108
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109 def set_attribute(self, attribute, value):
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110 """
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111 Set a new value for an attribute of the Queue.
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112
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113 :type attribute: String
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114 :param attribute: The name of the attribute you want to set.
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115
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116 :param value: The new value for the attribute must be:
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117
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118
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119 * For `DelaySeconds` the value must be an integer number of
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120 seconds from 0 to 900 (15 minutes).
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121 >>> queue.set_attribute('DelaySeconds', 900)
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122
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123 * For `MaximumMessageSize` the value must be an integer number of
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124 bytes from 1024 (1 KiB) to 262144 (256 KiB).
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125 >>> queue.set_attribute('MaximumMessageSize', 262144)
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126
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127 * For `MessageRetentionPeriod` the value must be an integer number of
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128 seconds from 60 (1 minute) to 1209600 (14 days).
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129 >>> queue.set_attribute('MessageRetentionPeriod', 1209600)
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130
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131 * For `Policy` the value must be an string that contains JSON formatted
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132 parameters and values.
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133 >>> queue.set_attribute('Policy', json.dumps({
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134 ... 'Version': '2008-10-17',
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135 ... 'Id': '/123456789012/testQueue/SQSDefaultPolicy',
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136 ... 'Statement': [
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137 ... {
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138 ... 'Sid': 'Queue1ReceiveMessage',
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139 ... 'Effect': 'Allow',
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140 ... 'Principal': {
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141 ... 'AWS': '*'
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142 ... },
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143 ... 'Action': 'SQS:ReceiveMessage',
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144 ... 'Resource': 'arn:aws:aws:sqs:us-east-1:123456789012:testQueue'
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145 ... }
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146 ... ]
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147 ... }))
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148
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149 * For `ReceiveMessageWaitTimeSeconds` the value must be an integer number of
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150 seconds from 0 to 20.
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151 >>> queue.set_attribute('ReceiveMessageWaitTimeSeconds', 20)
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152
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153 * For `VisibilityTimeout` the value must be an integer number of
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154 seconds from 0 to 43200 (12 hours).
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155 >>> queue.set_attribute('VisibilityTimeout', 43200)
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156
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157 * For `RedrivePolicy` the value must be an string that contains JSON formatted
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158 parameters and values. You can set maxReceiveCount to a value between 1 and 1000.
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159 The deadLetterTargetArn value is the Amazon Resource Name (ARN) of the queue that
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160 will receive the dead letter messages.
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161 >>> queue.set_attribute('RedrivePolicy', json.dumps({
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162 ... 'maxReceiveCount': 5,
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163 ... 'deadLetterTargetArn': "arn:aws:aws:sqs:us-east-1:123456789012:testDeadLetterQueue"
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164 ... }))
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165
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166 :rtype: bool
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167 :return: True if successful, otherwise False.
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168 """
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169 return self.connection.set_queue_attribute(self, attribute, value)
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170
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171 def get_timeout(self):
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172 """
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173 Get the visibility timeout for the queue.
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174
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175 :rtype: int
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176 :return: The number of seconds as an integer.
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177 """
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178 a = self.get_attributes('VisibilityTimeout')
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179 return int(a['VisibilityTimeout'])
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180
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181 def set_timeout(self, visibility_timeout):
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182 """
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183 Set the visibility timeout for the queue.
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184
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185 :type visibility_timeout: int
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186 :param visibility_timeout: The desired timeout in seconds
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187 """
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188 retval = self.set_attribute('VisibilityTimeout', visibility_timeout)
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189 if retval:
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190 self.visibility_timeout = visibility_timeout
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191 return retval
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192
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193 def add_permission(self, label, aws_account_id, action_name):
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194 """
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195 Add a permission to a queue.
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196
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197 :type label: str or unicode
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198 :param label: A unique identification of the permission you are setting.
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199 Maximum of 80 characters ``[0-9a-zA-Z_-]``
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200 Example, AliceSendMessage
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201
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202 :type aws_account_id: str or unicode
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203 :param principal_id: The AWS account number of the principal who
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204 will be given permission. The principal must have an AWS account,
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205 but does not need to be signed up for Amazon SQS. For information
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206 about locating the AWS account identification.
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207
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208 :type action_name: str or unicode
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209 :param action_name: The action. Valid choices are:
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210 SendMessage|ReceiveMessage|DeleteMessage|
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211 ChangeMessageVisibility|GetQueueAttributes|*
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212
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213 :rtype: bool
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214 :return: True if successful, False otherwise.
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215
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216 """
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217 return self.connection.add_permission(self, label, aws_account_id,
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218 action_name)
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219
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220 def remove_permission(self, label):
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221 """
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222 Remove a permission from a queue.
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223
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224 :type label: str or unicode
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225 :param label: The unique label associated with the permission
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226 being removed.
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227
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228 :rtype: bool
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229 :return: True if successful, False otherwise.
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230 """
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231 return self.connection.remove_permission(self, label)
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232
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233 def read(self, visibility_timeout=None, wait_time_seconds=None,
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234 message_attributes=None):
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235 """
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236 Read a single message from the queue.
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237
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238 :type visibility_timeout: int
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239 :param visibility_timeout: The timeout for this message in seconds
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240
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241 :type wait_time_seconds: int
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242 :param wait_time_seconds: The duration (in seconds) for which the call
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243 will wait for a message to arrive in the queue before returning.
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244 If a message is available, the call will return sooner than
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245 wait_time_seconds.
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246
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247 :type message_attributes: list
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248 :param message_attributes: The name(s) of additional message
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249 attributes to return. The default is to return no additional
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250 message attributes. Use ``['All']`` or ``['.*']`` to return all.
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251
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252 :rtype: :class:`boto.sqs.message.Message`
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253 :return: A single message or None if queue is empty
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254 """
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255 rs = self.get_messages(1, visibility_timeout,
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256 wait_time_seconds=wait_time_seconds,
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257 message_attributes=message_attributes)
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258 if len(rs) == 1:
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259 return rs[0]
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260 else:
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261 return None
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262
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263 def write(self, message, delay_seconds=None):
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264 """
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265 Add a single message to the queue.
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266
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267 :type message: Message
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268 :param message: The message to be written to the queue
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269
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270 :rtype: :class:`boto.sqs.message.Message`
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271 :return: The :class:`boto.sqs.message.Message` object that was written.
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272 """
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273 new_msg = self.connection.send_message(self,
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274 message.get_body_encoded(), delay_seconds=delay_seconds,
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275 message_attributes=message.message_attributes)
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276 message.id = new_msg.id
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277 message.md5 = new_msg.md5
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278 return message
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279
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280 def write_batch(self, messages):
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281 """
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282 Delivers up to 10 messages in a single request.
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283
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284 :type messages: List of lists.
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285 :param messages: A list of lists or tuples. Each inner
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286 tuple represents a single message to be written
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287 and consists of and ID (string) that must be unique
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288 within the list of messages, the message body itself
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289 which can be a maximum of 64K in length, an
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290 integer which represents the delay time (in seconds)
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291 for the message (0-900) before the message will
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292 be delivered to the queue, and an optional dict of
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293 message attributes like those passed to ``send_message``
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294 in the connection class.
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295 """
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296 return self.connection.send_message_batch(self, messages)
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297
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298 def new_message(self, body='', **kwargs):
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299 """
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300 Create new message of appropriate class.
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301
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302 :type body: message body
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303 :param body: The body of the newly created message (optional).
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304
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305 :rtype: :class:`boto.sqs.message.Message`
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306 :return: A new Message object
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307 """
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308 m = self.message_class(self, body, **kwargs)
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309 m.queue = self
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310 return m
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311
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312 # get a variable number of messages, returns a list of messages
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313 def get_messages(self, num_messages=1, visibility_timeout=None,
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314 attributes=None, wait_time_seconds=None,
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315 message_attributes=None):
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316 """
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317 Get a variable number of messages.
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318
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319 :type num_messages: int
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320 :param num_messages: The maximum number of messages to read from
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321 the queue.
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322
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323 :type visibility_timeout: int
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324 :param visibility_timeout: The VisibilityTimeout for the messages read.
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325
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326 :type attributes: str
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327 :param attributes: The name of additional attribute to return
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328 with response or All if you want all attributes. The
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329 default is to return no additional attributes. Valid
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330 values: All SenderId SentTimestamp ApproximateReceiveCount
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331 ApproximateFirstReceiveTimestamp
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332
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333 :type wait_time_seconds: int
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334 :param wait_time_seconds: The duration (in seconds) for which the call
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335 will wait for a message to arrive in the queue before returning.
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336 If a message is available, the call will return sooner than
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337 wait_time_seconds.
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338
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339 :type message_attributes: list
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340 :param message_attributes: The name(s) of additional message
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341 attributes to return. The default is to return no additional
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342 message attributes. Use ``['All']`` or ``['.*']`` to return all.
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343
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344 :rtype: list
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345 :return: A list of :class:`boto.sqs.message.Message` objects.
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346 """
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347 return self.connection.receive_message(
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348 self, number_messages=num_messages,
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349 visibility_timeout=visibility_timeout, attributes=attributes,
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350 wait_time_seconds=wait_time_seconds,
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351 message_attributes=message_attributes)
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352
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353 def delete_message(self, message):
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354 """
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355 Delete a message from the queue.
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356
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357 :type message: :class:`boto.sqs.message.Message`
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358 :param message: The :class:`boto.sqs.message.Message` object to delete.
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359
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360 :rtype: bool
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361 :return: True if successful, False otherwise
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362 """
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363 return self.connection.delete_message(self, message)
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364
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365 def delete_message_batch(self, messages):
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366 """
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367 Deletes a list of messages in a single request.
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368
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369 :type messages: List of :class:`boto.sqs.message.Message` objects.
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370 :param messages: A list of message objects.
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371 """
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372 return self.connection.delete_message_batch(self, messages)
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373
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374 def change_message_visibility_batch(self, messages):
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375 """
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376 A batch version of change_message_visibility that can act
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377 on up to 10 messages at a time.
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378
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379 :type messages: List of tuples.
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380 :param messages: A list of tuples where each tuple consists
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381 of a :class:`boto.sqs.message.Message` object and an integer
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382 that represents the new visibility timeout for that message.
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383 """
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384 return self.connection.change_message_visibility_batch(self, messages)
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385
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386 def delete(self):
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387 """
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388 Delete the queue.
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389 """
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390 return self.connection.delete_queue(self)
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diff changeset
391
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diff changeset
392 def purge(self):
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diff changeset
393 """
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diff changeset
394 Purge all messages in the queue.
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diff changeset
395 """
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diff changeset
396 return self.connection.purge_queue(self)
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diff changeset
397
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diff changeset
398 def clear(self, page_size=10, vtimeout=10):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
399 """Deprecated utility function to remove all messages from a queue"""
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diff changeset
400 return self.purge()
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diff changeset
401
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diff changeset
402 def count(self, page_size=10, vtimeout=10):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
403 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
404 Utility function to count the number of messages in a queue.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
405 Note: This function now calls GetQueueAttributes to obtain
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
406 an 'approximate' count of the number of messages in a queue.
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parents:
diff changeset
407 """
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408 a = self.get_attributes('ApproximateNumberOfMessages')
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409 return int(a['ApproximateNumberOfMessages'])
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diff changeset
410
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411 def count_slow(self, page_size=10, vtimeout=10):
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412 """
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413 Deprecated. This is the old 'count' method that actually counts
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414 the messages by reading them all. This gives an accurate count but
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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415 is very slow for queues with non-trivial number of messasges.
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416 Instead, use get_attributes('ApproximateNumberOfMessages') to take
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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417 advantage of the new SQS capability. This is retained only for
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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418 the unit tests.
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419 """
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420 n = 0
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421 l = self.get_messages(page_size, vtimeout)
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422 while l:
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423 for m in l:
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424 n += 1
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425 l = self.get_messages(page_size, vtimeout)
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parents:
diff changeset
426 return n
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427
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428 def dump(self, file_name, page_size=10, vtimeout=10, sep='\n'):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
429 """Utility function to dump the messages in a queue to a file
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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430 NOTE: Page size must be < 10 else SQS errors"""
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431 fp = open(file_name, 'wb')
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432 n = 0
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433 l = self.get_messages(page_size, vtimeout)
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diff changeset
434 while l:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
435 for m in l:
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diff changeset
436 fp.write(m.get_body())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
437 if sep:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
438 fp.write(sep)
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439 n += 1
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440 l = self.get_messages(page_size, vtimeout)
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diff changeset
441 fp.close()
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442 return n
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443
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444 def save_to_file(self, fp, sep='\n'):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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445 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
446 Read all messages from the queue and persist them to file-like object.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
447 Messages are written to the file and the 'sep' string is written
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
448 in between messages. Messages are deleted from the queue after
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diff changeset
449 being written to the file.
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450 Returns the number of messages saved.
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parents:
diff changeset
451 """
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diff changeset
452 n = 0
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parents:
diff changeset
453 m = self.read()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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diff changeset
454 while m:
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diff changeset
455 n += 1
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diff changeset
456 fp.write(m.get_body())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
457 if sep:
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diff changeset
458 fp.write(sep)
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parents:
diff changeset
459 self.delete_message(m)
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diff changeset
460 m = self.read()
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diff changeset
461 return n
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diff changeset
462
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parents:
diff changeset
463 def save_to_filename(self, file_name, sep='\n'):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
464 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
465 Read all messages from the queue and persist them to local file.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
466 Messages are written to the file and the 'sep' string is written
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
467 in between messages. Messages are deleted from the queue after
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
468 being written to the file.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
469 Returns the number of messages saved.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
470 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
471 fp = open(file_name, 'wb')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
472 n = self.save_to_file(fp, sep)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
473 fp.close()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
474 return n
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
475
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
476 # for backwards compatibility
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
477 save = save_to_filename
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
478
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
479 def save_to_s3(self, bucket):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
480 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
481 Read all messages from the queue and persist them to S3.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
482 Messages are stored in the S3 bucket using a naming scheme of::
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
483
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
484 <queue_id>/<message_id>
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
485
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
486 Messages are deleted from the queue after being saved to S3.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
487 Returns the number of messages saved.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
488 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
489 n = 0
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
490 m = self.read()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
491 while m:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
492 n += 1
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
493 key = bucket.new_key('%s/%s' % (self.id, m.id))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
494 key.set_contents_from_string(m.get_body())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
495 self.delete_message(m)
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parents:
diff changeset
496 m = self.read()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
497 return n
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
498
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
499 def load_from_s3(self, bucket, prefix=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
500 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
501 Load messages previously saved to S3.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
502 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
503 n = 0
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
504 if prefix:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
505 prefix = '%s/' % prefix
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
506 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
507 prefix = '%s/' % self.id[1:]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
508 rs = bucket.list(prefix=prefix)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
509 for key in rs:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
510 n += 1
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
511 m = self.new_message(key.get_contents_as_string())
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parents:
diff changeset
512 self.write(m)
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diff changeset
513 return n
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
514
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
515 def load_from_file(self, fp, sep='\n'):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
516 """Utility function to load messages from a file-like object to a queue"""
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
517 n = 0
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
518 body = ''
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
519 l = fp.readline()
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520 while l:
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521 if l == sep:
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522 m = Message(self, body)
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523 self.write(m)
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524 n += 1
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525 print('writing message %d' % n)
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526 body = ''
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527 else:
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528 body = body + l
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529 l = fp.readline()
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530 return n
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531
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532 def load_from_filename(self, file_name, sep='\n'):
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533 """Utility function to load messages from a local filename to a queue"""
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534 fp = open(file_name, 'rb')
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535 n = self.load_from_file(fp, sep)
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536 fp.close()
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537 return n
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538
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539 # for backward compatibility
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540 load = load_from_filename
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541