Class: OpenTox::Serializer::Owl

Inherits:
Object
  • Object
show all
Defined in:
lib/serializer.rb

Overview

OWL-DL Serializer, modelled according to to n2.talis.com/wiki/RDF_JSON_Specification

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Owl

Returns a new instance of Owl.



15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
 
# File 'lib/serializer.rb', line 15

def initialize

  @object = {
    # this should come from opentox.owl
    OT.Compound => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Feature => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Model => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.NominalFeature => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.NumericFeature => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.StringFeature => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ModelPrediction => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Dataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.DataEntry => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.FeatureValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Algorithm => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Parameter => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Task => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OTA.PatternMiningSupervised => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OTA.ClassificationLazySingleTarget => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OTA.RegressionLazySingleTarget => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,

    #classes for validation
    OT.Validation => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ClassificationStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ConfusionMatrix => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ConfusionMatrixCell => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ClassValueStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.RegressionStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.Crossvalidation => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.CrossvalidationInfo => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,
    OT.ErrorReport => { RDF["type"] => [{ "type" => "uri", "value" => OWL['Class'] }] } ,

    OT.compound => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.feature => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.dataEntry => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.values => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.algorithm => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.parameters => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.featureDataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.dependentVariables => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.predictedVariables => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.paramValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,

    #object props for validation#
    OT.model => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.trainingDataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.predictionFeature => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.predictionDataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.crossvalidation => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.testTargetDataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.testDataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.classificationStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.confusionMatrix => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.confusionMatrixCell => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.classValueStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.regressionStatistics => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.validation => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.crossvalidationInfo => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.dataset => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,
    OT.hasSource => { RDF["type"] => [{ "type" => "uri", "value" => OWL.ObjectProperty }] } ,

    DC.title => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    DC.identifier => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    DC.contributor => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    DC.creator => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    DC.description => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    DC.date => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    #OT.isA => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.Warnings => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    XSD.anyURI => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.hasStatus => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.resultURI => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.percentageCompleted => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.acceptValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,

    # annotation props for validation
    OT.numUnpredicted => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.crossvalidationFold => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numInstances => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numWithoutClass => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.percentWithoutClass => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.percentUnpredicted => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.confusionMatrixActual => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.confusionMatrixPredicted => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.confusionMatrixValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numIncorrect => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.percentCorrect => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numCorrect => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.accuracy => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.trueNegativeRate => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.truePositiveRate => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.falseNegativeRate => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.falsePositiveRate => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numTrueNegatives => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numTruePositives => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numFalseNegatives => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numFalsePositives => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.classValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.precision => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.areaUnderRoc => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.weightedAreaUnderRoc => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.weightedAccuracy => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.fMeasure => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.percentIncorrect => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.validationType => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.realRuntime => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.sampleCorrelationCoefficient => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.targetVarianceActual => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.targetVariancePredicted => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.meanAbsoluteError => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.sumSquaredError => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.rootMeanSquaredError => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.rSquare => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.stratified => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.numFolds => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.randomSeed => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.reportType => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.message => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.statusCode => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.actor => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,
    OT.errorCode => { RDF["type"] => [{ "type" => "uri", "value" => OWL.AnnotationProperty }] } ,

    #OT.hasSource => { RDF["type"] => [{ "type" => "uri", "value" => OWL.DatatypeProperty }] } ,
    OT.value => { RDF["type"] => [{ "type" => "uri", "value" => OWL.DatatypeProperty }] } ,
    OT.paramScope => { RDF["type"] => [{ "type" => "uri", "value" => OWL.DatatypeProperty }] } ,
    #OT.paramValue => { RDF["type"] => [{ "type" => "uri", "value" => OWL.DatatypeProperty }] } ,
  }

  @data_entries = {}
  @values_id = 0
  @parameter_id = 0

  @classes = Set.new
  @object_properties = Set.new
  @annotation_properties = Set.new
  @datatype_properties = Set.new

  @objects = Set.new
end

Instance Attribute Details

#object ⇒ Object

Returns the value of attribute object.



13
14
15
 
# File 'lib/serializer.rb', line 13

def object
  @object
end

Instance Method Details

#add_algorithm(uri, metadata) ⇒ Object

Add a algorithm

Parameters:

  • uri (String) —

    Algorithm URI



185
186
187
188
 
# File 'lib/serializer.rb', line 185

def add_algorithm(uri,metadata)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Algorithm }] }
  add_metadata uri, metadata
end

#add_compound(uri) ⇒ Object

Add a compound

Parameters:

  • uri (String) —

    Compound URI



157
158
159
 
# File 'lib/serializer.rb', line 157

def add_compound(uri)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Compound }] }
end

#add_data_entry(compound, feature, value) ⇒ Object

Add a data entry

Parameters:

  • compound (String) —

    Compound URI

  • feature (String) —

    Feature URI

  • value (Boolead, Float) —

    Feature value



310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
 
# File 'lib/serializer.rb', line 310

def add_data_entry(compound,feature,value)
  add_compound(compound) unless @object[compound]
  add_feature(feature,{}) unless @object[feature]
  unless data_entry = @data_entries[compound]
    data_entry = "_:dataentry#{@data_entries.size}"
    @data_entries[compound] = data_entry
    @object[@dataset][OT.dataEntry] = [] unless @object[@dataset][OT.dataEntry]
    @object[@dataset][OT.dataEntry] << {"type" => "bnode", "value" => data_entry}
    @object[data_entry] = {
      RDF["type"] => [{ "type" => "uri", "value" => OT.DataEntry }],
      OT.compound => [{ "type" => "uri", "value" => compound }],
      OT.values => [],
    }
  end
  values = "_:values#{@values_id}"
  @values_id += 1
  @object[data_entry][OT.values] << {"type" => "bnode", "value" => values}
  case type(value)
  when "uri"
    v = [{ "type" => "uri", "value" => value}]
  when "literal"
    v = [{ "type" => "literal", "value" => value, "datatype" => datatype(value) }]
  else
    raise "Illegal type #{type(value)} for #{value}."
  end
  @object[values] = {
    RDF["type"] => [{ "type" => "uri", "value" => OT.FeatureValue }],
    OT.feature => [{ "type" => "uri", "value" => feature }],
    OT.value => v
  }
  @object[feature][RDF["type"]] << { "type" => "uri", "value" => featuretype(value) }
  #@object[feature][RDF["type"]] = { "type" => "uri", "value" => featuretype(value) }
end

#add_dataset(dataset) ⇒ Object

Add a dataset

Parameters:

  • uri (String) —

    Dataset URI



170
171
172
173
174
175
176
177
178
179
180
181
 
# File 'lib/serializer.rb', line 170

def add_dataset(dataset)
  @dataset = dataset.uri
  @object[dataset.uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Dataset }] }
  add_metadata dataset.uri, dataset.metadata
  dataset.compounds.each { |compound| add_compound compound }
  dataset.features.each { |feature,metadata| add_feature feature,metadata }
  dataset.data_entries.each do |compound,entry|
    entry.each do |feature,values|
      values.each { |value| add_data_entry compound,feature,value }
    end
  end
end

#add_feature(uri, metadata) ⇒ Object

Add a feature

Parameters:

  • uri (String) —

    Feature URI



163
164
165
166
 
# File 'lib/serializer.rb', line 163

def add_feature(uri,metadata)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Feature }] }
  add_metadata uri, metadata
end

#add_metadata(uri, metadata) ⇒ Object

Add metadata

Parameters:

  • metadata (Hash) 


276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
 
# File 'lib/serializer.rb', line 276

def add_metadata(uri,metadata)
  id = 0
  if !metadata.nil?
    metadata.each do |u,v|
      #if v.is_a? Array and (u == OT.parameters or u == RDF.type)
      if v.is_a? Array and u == OT.parameters#or u == RDF.type)
        @object[uri][u] = [] unless @object[uri][u]
        v.each do |value|
          id+=1
          genid = "_:genid#{id}"
          @object[uri][u] << {"type" => "bnode", "value" => genid}
          @object[genid] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Parameter}] }
          value.each do |name,entry|
            @object[genid][name] = [{"type" => type(entry), "value" => entry }]
          end
        end
      elsif v.is_a? Array #and u == RDF.type
        @object[uri] = {} unless @object[uri]
        v.each do |value|
          @object[uri][u] = [] unless @object[uri][u]
          @object[uri][u] << {"type" => type(value), "value" => value }
        end
      elsif v.is_a? String
        @object[uri] = {} unless @object[uri]
        @object[uri][u] = [{"type" => type(v), "value" => v }]
      end
    end
  end
end

#add_model(uri, metadata) ⇒ Object

Add a model

Parameters:



192
193
194
195
196
197
198
199
200
201
202
203
 
# File 'lib/serializer.rb', line 192

def add_model(uri,metadata)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Model }] }
  add_metadata uri, metadata
  @object[metadata[OT.featureDataset]] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Dataset }] }
  @object[metadata[OT.trainingDataset]] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Dataset }] }
  @object[metadata[OT.dependentVariables]] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Feature }] }
  metadata[OT.predictedVariables].each{|feature| @object[feature] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Feature }]}} #unless metadata[OT.predictedVariables].nil?
  # TODO: add algorithms from parameters
  @object["http://ot-dev.in-silico.ch/algorithm/fminer/bbrc"] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Algorithm }] }
  @object["http://ot-dev.in-silico.ch/algorithm/fminer/last"] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Algorithm }] }
  @object["http://ot-dev.in-silico.ch/algorithm/lazar"] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Algorithm }] }
end

#add_resource(uri, resource_class, content) ⇒ Object

Add a resource defined by resource_class and content (see documentation of add_content for example)

Parameters:

  • uri (String) —

    of resource

  • resource (String) —

    class, e.g. OT.Validation

  • content (Hash) —

    as hash



217
218
219
220
221
 
# File 'lib/serializer.rb', line 217

def add_resource(uri, resource_class, content)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => resource_class }] }
  @@content_id = 1
  add_content uri, content
end

#add_task(uri, metadata) ⇒ Object

Add a task

Parameters:



207
208
209
210
 
# File 'lib/serializer.rb', line 207

def add_task(uri,metadata)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => OT.Task }] }
  add_metadata uri, metadata
end

#add_uri(uri, type) ⇒ Object 



223
224
225
 
# File 'lib/serializer.rb', line 223

def add_uri(uri,type)
  @object[uri] = { RDF["type"] => [{ "type" => "uri", "value" => type }] }
end

#to_json ⇒ text/plain

Convert to JSON as specified in n2.talis.com/wiki/RDF_JSON_Specification (Ambit services use a different JSON representation)

Returns:

  • (text/plain) —

    Object OWL-DL in JSON format



388
389
390
391
 
# File 'lib/serializer.rb', line 388

def to_json
  #rdf_types
  Yajl::Encoder.encode(@object)
end

#to_ntriples ⇒ text/plain

Convert to N-Triples

Returns:

  • (text/plain) —

    Object OWL-DL in N-Triples format



348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
 
# File 'lib/serializer.rb', line 348

def to_ntriples

  @triples = Set.new
  @object.each do |s,entry|
    s = url(s) if type(s) == "uri"
    entry.each do |p,objects|
      p = url(p)
      objects.each do |o|
        case o["type"]
        when "uri"
          o = url(o["value"])
        when "literal"
          o = literal(o["value"],datatype(o["value"]))
        when "bnode"
          o = o["value"]
        end
        @triples << [s,p,o]
      end
    end
  end
  @triples.sort.collect{ |s| s.join(' ').concat(" .") }.join("\n")+"\n"
end

#to_rdfxml ⇒ text/plain

Convert to RDF/XML

Returns:

  • (text/plain) —

    Object OWL-DL in RDF/XML format



373
374
375
376
377
378
379
380
381
382
383
 
# File 'lib/serializer.rb', line 373

def to_rdfxml
  tmpf = Tempfile.open("owl-serializer")
  tmpf.write(self.to_ntriples)
  tmpf.flush
  @path = tmpf.path
  # TODO: add base uri for ist services
  res=`rapper -i ntriples -f 'xmlns:ot="#{OT.uri}"' -f 'xmlns:ota="#{OTA.uri}"' -f 'xmlns:dc="#{DC.uri}"' -f 'xmlns:rdf="#{RDF.uri}"' -f 'xmlns:owl="#{OWL.uri}"' -o rdfxml #{@path} 2>/dev/null`
  tmpf.close
  tmpf.delete
  res
end