annotate env/lib/python3.7/site-packages/boto/mturk/question.py @ 3:758bc20232e8 draft

"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:20:52 -0400
parents 26e78fe6e8c4
children
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1 # Copyright (c) 2006,2007 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 import xml.sax.saxutils
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23
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24 class Question(object):
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25 template = "<Question>%(items)s</Question>"
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26
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27 def __init__(self, identifier, content, answer_spec,
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28 is_required=False, display_name=None):
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29 # copy all of the parameters into object attributes
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30 self.__dict__.update(vars())
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31 del self.self
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32
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33 def get_as_params(self, label='Question'):
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34 return {label: self.get_as_xml()}
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35
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36 def get_as_xml(self):
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37 items = [
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38 SimpleField('QuestionIdentifier', self.identifier),
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39 SimpleField('IsRequired', str(self.is_required).lower()),
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40 self.content,
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41 self.answer_spec,
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42 ]
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43 if self.display_name is not None:
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44 items.insert(1, SimpleField('DisplayName', self.display_name))
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45 items = ''.join(item.get_as_xml() for item in items)
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46 return self.template % vars()
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47
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48 try:
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49 from lxml import etree
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50
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51 class ValidatingXML(object):
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52
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53 def validate(self):
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54 import urllib2
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55 schema_src_file = urllib2.urlopen(self.schema_url)
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56 schema_doc = etree.parse(schema_src_file)
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57 schema = etree.XMLSchema(schema_doc)
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58 doc = etree.fromstring(self.get_as_xml())
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59 schema.assertValid(doc)
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60 except ImportError:
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61 class ValidatingXML(object):
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62
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63 def validate(self):
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64 pass
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65
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66
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67 class ExternalQuestion(ValidatingXML):
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68 """
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69 An object for constructing an External Question.
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70 """
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71 schema_url = "http://mechanicalturk.amazonaws.com/AWSMechanicalTurkDataSchemas/2006-07-14/ExternalQuestion.xsd"
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72 template = '<ExternalQuestion xmlns="%(schema_url)s"><ExternalURL>%%(external_url)s</ExternalURL><FrameHeight>%%(frame_height)s</FrameHeight></ExternalQuestion>' % vars()
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73
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74 def __init__(self, external_url, frame_height):
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75 self.external_url = xml.sax.saxutils.escape( external_url )
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76 self.frame_height = frame_height
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77
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78 def get_as_params(self, label='ExternalQuestion'):
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79 return {label: self.get_as_xml()}
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80
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81 def get_as_xml(self):
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82 return self.template % vars(self)
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83
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84
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85 class XMLTemplate(object):
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86 def get_as_xml(self):
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87 return self.template % vars(self)
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88
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89
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90 class SimpleField(XMLTemplate):
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91 """
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92 A Simple name/value pair that can be easily rendered as XML.
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93
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94 >>> SimpleField('Text', 'A text string').get_as_xml()
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95 '<Text>A text string</Text>'
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96 """
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97 template = '<%(field)s>%(value)s</%(field)s>'
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98
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99 def __init__(self, field, value):
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100 self.field = field
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101 self.value = value
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102
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103
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104 class Binary(XMLTemplate):
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105 template = """<Binary><MimeType><Type>%(type)s</Type><SubType>%(subtype)s</SubType></MimeType><DataURL>%(url)s</DataURL><AltText>%(alt_text)s</AltText></Binary>"""
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106
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107 def __init__(self, type, subtype, url, alt_text):
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108 self.__dict__.update(vars())
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109 del self.self
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110
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111
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112 class List(list):
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113 """A bulleted list suitable for OrderedContent or Overview content"""
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114 def get_as_xml(self):
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115 items = ''.join('<ListItem>%s</ListItem>' % item for item in self)
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116 return '<List>%s</List>' % items
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117
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118
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119 class Application(object):
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120 template = "<Application><%(class_)s>%(content)s</%(class_)s></Application>"
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121 parameter_template = "<Name>%(name)s</Name><Value>%(value)s</Value>"
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122
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123 def __init__(self, width, height, **parameters):
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124 self.width = width
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125 self.height = height
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126 self.parameters = parameters
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127
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128 def get_inner_content(self, content):
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129 content.append_field('Width', self.width)
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130 content.append_field('Height', self.height)
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131 for name, value in self.parameters.items():
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132 value = self.parameter_template % vars()
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133 content.append_field('ApplicationParameter', value)
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134
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135 def get_as_xml(self):
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136 content = OrderedContent()
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137 self.get_inner_content(content)
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138 content = content.get_as_xml()
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139 class_ = self.__class__.__name__
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140 return self.template % vars()
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141
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142
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143 class HTMLQuestion(ValidatingXML):
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144 schema_url = 'http://mechanicalturk.amazonaws.com/AWSMechanicalTurkDataSchemas/2011-11-11/HTMLQuestion.xsd'
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145 template = '<HTMLQuestion xmlns=\"%(schema_url)s\"><HTMLContent><![CDATA[<!DOCTYPE html>%%(html_form)s]]></HTMLContent><FrameHeight>%%(frame_height)s</FrameHeight></HTMLQuestion>' % vars()
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146
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147 def __init__(self, html_form, frame_height):
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148 self.html_form = html_form
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149 self.frame_height = frame_height
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150
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151 def get_as_params(self, label="HTMLQuestion"):
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152 return {label: self.get_as_xml()}
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153
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154 def get_as_xml(self):
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155 return self.template % vars(self)
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156
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157
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158 class JavaApplet(Application):
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159 def __init__(self, path, filename, *args, **kwargs):
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160 self.path = path
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161 self.filename = filename
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162 super(JavaApplet, self).__init__(*args, **kwargs)
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163
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164 def get_inner_content(self, content):
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165 content = OrderedContent()
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166 content.append_field('AppletPath', self.path)
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167 content.append_field('AppletFilename', self.filename)
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168 super(JavaApplet, self).get_inner_content(content)
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169
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170
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171 class Flash(Application):
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172 def __init__(self, url, *args, **kwargs):
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173 self.url = url
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174 super(Flash, self).__init__(*args, **kwargs)
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175
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176 def get_inner_content(self, content):
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177 content = OrderedContent()
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178 content.append_field('FlashMovieURL', self.url)
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179 super(Flash, self).get_inner_content(content)
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180
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181
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182 class FormattedContent(XMLTemplate):
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183 schema_url = 'http://mechanicalturk.amazonaws.com/AWSMechanicalTurkDataSchemas/2006-07-14/FormattedContentXHTMLSubset.xsd'
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184 template = '<FormattedContent><![CDATA[%(content)s]]></FormattedContent>'
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185
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186 def __init__(self, content):
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187 self.content = content
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188
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189
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190 class OrderedContent(list):
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191
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192 def append_field(self, field, value):
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193 self.append(SimpleField(field, value))
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194
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195 def get_as_xml(self):
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196 return ''.join(item.get_as_xml() for item in self)
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197
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198
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199 class Overview(OrderedContent):
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200 template = '<Overview>%(content)s</Overview>'
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201
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202 def get_as_params(self, label='Overview'):
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203 return {label: self.get_as_xml()}
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204
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205 def get_as_xml(self):
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206 content = super(Overview, self).get_as_xml()
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207 return self.template % vars()
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208
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209
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210 class QuestionForm(ValidatingXML, list):
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211 """
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212 From the AMT API docs:
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213
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214 The top-most element of the QuestionForm data structure is a
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215 QuestionForm element. This element contains optional Overview
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216 elements and one or more Question elements. There can be any
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217 number of these two element types listed in any order. The
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218 following example structure has an Overview element and a
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219 Question element followed by a second Overview element and
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220 Question element--all within the same QuestionForm.
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221
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222 ::
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223
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224 <QuestionForm xmlns="[the QuestionForm schema URL]">
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225 <Overview>
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226 [...]
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227 </Overview>
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228 <Question>
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229 [...]
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230 </Question>
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231 <Overview>
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232 [...]
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233 </Overview>
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234 <Question>
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235 [...]
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236 </Question>
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237 [...]
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238 </QuestionForm>
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239
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240 QuestionForm is implemented as a list, so to construct a
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241 QuestionForm, simply append Questions and Overviews (with at least
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242 one Question).
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243 """
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244 schema_url = "http://mechanicalturk.amazonaws.com/AWSMechanicalTurkDataSchemas/2005-10-01/QuestionForm.xsd"
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245 xml_template = """<QuestionForm xmlns="%(schema_url)s">%%(items)s</QuestionForm>""" % vars()
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246
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247 def is_valid(self):
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248 return (
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249 any(isinstance(item, Question) for item in self)
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250 and
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251 all(isinstance(item, (Question, Overview)) for item in self)
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252 )
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253
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254 def get_as_xml(self):
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255 assert self.is_valid(), "QuestionForm contains invalid elements"
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256 items = ''.join(item.get_as_xml() for item in self)
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257 return self.xml_template % vars()
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258
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259
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260 class QuestionContent(OrderedContent):
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261 template = '<QuestionContent>%(content)s</QuestionContent>'
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262
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263 def get_as_xml(self):
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264 content = super(QuestionContent, self).get_as_xml()
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265 return self.template % vars()
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266
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267
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268 class AnswerSpecification(object):
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269 template = '<AnswerSpecification>%(spec)s</AnswerSpecification>'
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270
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271 def __init__(self, spec):
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272 self.spec = spec
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273
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274 def get_as_xml(self):
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275 spec = self.spec.get_as_xml()
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276 return self.template % vars()
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277
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278
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279 class Constraints(OrderedContent):
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280 template = '<Constraints>%(content)s</Constraints>'
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281
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282 def get_as_xml(self):
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283 content = super(Constraints, self).get_as_xml()
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284 return self.template % vars()
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285
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286
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287 class Constraint(object):
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288 def get_attributes(self):
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289 pairs = zip(self.attribute_names, self.attribute_values)
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290 attrs = ' '.join(
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291 '%s="%d"' % (name, value)
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292 for (name, value) in pairs
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293 if value is not None
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294 )
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295 return attrs
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296
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297 def get_as_xml(self):
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298 attrs = self.get_attributes()
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299 return self.template % vars()
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300
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301
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302 class NumericConstraint(Constraint):
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303 attribute_names = 'minValue', 'maxValue'
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304 template = '<IsNumeric %(attrs)s />'
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305
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306 def __init__(self, min_value=None, max_value=None):
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307 self.attribute_values = min_value, max_value
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308
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309
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310 class LengthConstraint(Constraint):
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311 attribute_names = 'minLength', 'maxLength'
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312 template = '<Length %(attrs)s />'
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313
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314 def __init__(self, min_length=None, max_length=None):
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315 self.attribute_values = min_length, max_length
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316
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317
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318 class RegExConstraint(Constraint):
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319 attribute_names = 'regex', 'errorText', 'flags'
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320 template = '<AnswerFormatRegex %(attrs)s />'
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321
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322 def __init__(self, pattern, error_text=None, flags=None):
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323 self.attribute_values = pattern, error_text, flags
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324
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325 def get_attributes(self):
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326 pairs = zip(self.attribute_names, self.attribute_values)
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327 attrs = ' '.join(
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328 '%s="%s"' % (name, value)
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329 for (name, value) in pairs
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330 if value is not None
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331 )
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332 return attrs
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333
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334
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335 class NumberOfLinesSuggestion(object):
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336 template = '<NumberOfLinesSuggestion>%(num_lines)s</NumberOfLinesSuggestion>'
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337
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338 def __init__(self, num_lines=1):
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339 self.num_lines = num_lines
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340
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341 def get_as_xml(self):
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342 num_lines = self.num_lines
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343 return self.template % vars()
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344
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345
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346 class FreeTextAnswer(object):
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347 template = '<FreeTextAnswer>%(items)s</FreeTextAnswer>'
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348
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349 def __init__(self, default=None, constraints=None, num_lines=None):
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350 self.default = default
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351 if constraints is None:
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352 self.constraints = Constraints()
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353 else:
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354 self.constraints = Constraints(constraints)
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355 self.num_lines = num_lines
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356
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357 def get_as_xml(self):
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358 items = [self.constraints]
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359 if self.default:
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360 items.append(SimpleField('DefaultText', self.default))
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361 if self.num_lines:
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362 items.append(NumberOfLinesSuggestion(self.num_lines))
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363 items = ''.join(item.get_as_xml() for item in items)
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364 return self.template % vars()
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365
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366
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367 class FileUploadAnswer(object):
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368 template = """<FileUploadAnswer><MaxFileSizeInBytes>%(max_bytes)d</MaxFileSizeInBytes><MinFileSizeInBytes>%(min_bytes)d</MinFileSizeInBytes></FileUploadAnswer>"""
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369
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370 def __init__(self, min_bytes, max_bytes):
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371 assert 0 <= min_bytes <= max_bytes <= 2 * 10 ** 9
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372 self.min_bytes = min_bytes
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373 self.max_bytes = max_bytes
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374
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375 def get_as_xml(self):
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376 return self.template % vars(self)
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377
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378
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379 class SelectionAnswer(object):
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380 """
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381 A class to generate SelectionAnswer XML data structures.
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382 Does not yet implement Binary selection options.
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383 """
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384 SELECTIONANSWER_XML_TEMPLATE = """<SelectionAnswer>%s%s<Selections>%s</Selections></SelectionAnswer>""" # % (count_xml, style_xml, selections_xml)
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385 SELECTION_XML_TEMPLATE = """<Selection><SelectionIdentifier>%s</SelectionIdentifier>%s</Selection>""" # (identifier, value_xml)
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386 SELECTION_VALUE_XML_TEMPLATE = """<%s>%s</%s>""" # (type, value, type)
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387 STYLE_XML_TEMPLATE = """<StyleSuggestion>%s</StyleSuggestion>""" # (style)
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388 MIN_SELECTION_COUNT_XML_TEMPLATE = """<MinSelectionCount>%s</MinSelectionCount>""" # count
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389 MAX_SELECTION_COUNT_XML_TEMPLATE = """<MaxSelectionCount>%s</MaxSelectionCount>""" # count
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390 ACCEPTED_STYLES = ['radiobutton', 'dropdown', 'checkbox', 'list', 'combobox', 'multichooser']
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391 OTHER_SELECTION_ELEMENT_NAME = 'OtherSelection'
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392
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393 def __init__(self, min=1, max=1, style=None, selections=None, type='text', other=False):
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394
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395 if style is not None:
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396 if style in SelectionAnswer.ACCEPTED_STYLES:
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397 self.style_suggestion = style
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398 else:
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399 raise ValueError("style '%s' not recognized; should be one of %s" % (style, ', '.join(SelectionAnswer.ACCEPTED_STYLES)))
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400 else:
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401 self.style_suggestion = None
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402
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403 if selections is None:
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404 raise ValueError("SelectionAnswer.__init__(): selections must be a non-empty list of (content, identifier) tuples")
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405 else:
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406 self.selections = selections
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407
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408 self.min_selections = min
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409 self.max_selections = max
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410
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411 assert len(selections) >= self.min_selections, "# of selections is less than minimum of %d" % self.min_selections
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412 #assert len(selections) <= self.max_selections, "# of selections exceeds maximum of %d" % self.max_selections
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413
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414 self.type = type
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415
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416 self.other = other
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417
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418 def get_as_xml(self):
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419 if self.type == 'text':
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420 TYPE_TAG = "Text"
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421 elif self.type == 'binary':
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422 TYPE_TAG = "Binary"
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423 else:
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424 raise ValueError("illegal type: %s; must be either 'text' or 'binary'" % str(self.type))
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425
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426 # build list of <Selection> elements
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427 selections_xml = ""
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428 for tpl in self.selections:
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429 value_xml = SelectionAnswer.SELECTION_VALUE_XML_TEMPLATE % (TYPE_TAG, tpl[0], TYPE_TAG)
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430 selection_xml = SelectionAnswer.SELECTION_XML_TEMPLATE % (tpl[1], value_xml)
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431 selections_xml += selection_xml
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432
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433 if self.other:
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434 # add OtherSelection element as xml if available
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435 if hasattr(self.other, 'get_as_xml'):
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436 assert isinstance(self.other, FreeTextAnswer), 'OtherSelection can only be a FreeTextAnswer'
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437 selections_xml += self.other.get_as_xml().replace('FreeTextAnswer', 'OtherSelection')
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438 else:
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439 selections_xml += "<OtherSelection />"
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440
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441 if self.style_suggestion is not None:
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442 style_xml = SelectionAnswer.STYLE_XML_TEMPLATE % self.style_suggestion
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443 else:
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444 style_xml = ""
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445
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446 if self.style_suggestion != 'radiobutton':
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447 count_xml = SelectionAnswer.MIN_SELECTION_COUNT_XML_TEMPLATE %self.min_selections
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448 count_xml += SelectionAnswer.MAX_SELECTION_COUNT_XML_TEMPLATE %self.max_selections
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449 else:
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450 count_xml = ""
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451
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452 ret = SelectionAnswer.SELECTIONANSWER_XML_TEMPLATE % (count_xml, style_xml, selections_xml)
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453
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454 # return XML
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455 return ret