Oh thanks! i try. If I extend the CustomFeatureGenerator what parameters should i pass?
Il 25/Ott/2016 13:39, "Joern Kottmann" <[email protected]> ha scritto: > You need to use a constructor which is public and has no arguments. > > The parameters can be passed in only if you extend CustomFeatureGenerator. > That one has an init method which gives you the attributes defined in the > xml descriptor. > > HTH, > Jörn > > On Tue, Oct 25, 2016 at 12:43 PM, Damiano Porta <[email protected]> > wrote: > > > Joern, > > However i also tried with: > > > > public SpanFeatureGenerator(Map<String, String> properties, > > FeatureGeneratorResourceProvider resourceProvider) throws > > InvalidFormatException { > > > > } > > > > but i get the same exception. > > Damiano > > > > 2016-10-25 12:30 GMT+02:00 Damiano Porta <[email protected]>: > > > > > This at the moment: > > > > > > public SpanFeatureGenerator(String prefix, Object finder, int > > > prevWindowSize, int nextWindowSize) { > > > > > > System.out.println(prefix); > > > System.out.println((String)finder); > > > System.out.println(prevWindowSize); > > > System.out.println(nextWindowSize); > > > System.exit(1); > > > > > > } > > > > > > It is obviously a test to understand if my generator is called. > > > > > > > > > 2016-10-25 12:23 GMT+02:00 Joern Kottmann <[email protected]>: > > > > > >> What is the constructor of the > > >> com.damiano.parser.generator.SpanFeatureGenerator > > >> class? > > >> > > >> Jörn > > >> > > >> On Tue, Oct 25, 2016 at 11:51 AM, Damiano Porta < > [email protected] > > > > > >> wrote: > > >> > > >> > Hello, > > >> > I have created a custom generator implementing the > > >> AdaptiveFeatureGenerator > > >> > interface. > > >> > > > >> > I am getting this error: > > >> > > > >> > Exception in thread "main" > > >> > opennlp.tools.util.ext.ExtensionNotLoadedException: > > >> > java.lang.InstantiationException: > > >> > com.damiano.parser.generator.SpanFeatureGenerator > > >> > at > > >> > opennlp.tools.util.ext.ExtensionLoader.instantiateExtension( > > >> > ExtensionLoader.java:72) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory$ > > >> > CustomFeatureGeneratorFactory.create(GeneratorFactory.java:582) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory.createGenerator( > > >> > GeneratorFactory.java:661) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory$ > > >> > AggregatedFeatureGeneratorFactory.create(GeneratorFactory.java:129) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory.createGenerator( > > >> > GeneratorFactory.java:661) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory$ > > >> > CachedFeatureGeneratorFactory.create(GeneratorFactory.java:171) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory.createGenerator( > > >> > GeneratorFactory.java:661) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory$ > > >> > AggregatedFeatureGeneratorFactory.create(GeneratorFactory.java:129) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory.createGenerator( > > >> > GeneratorFactory.java:661) > > >> > at > > >> > opennlp.tools.util.featuregen.GeneratorFactory.create( > > >> > GeneratorFactory.java:711) > > >> > at > > >> > opennlp.tools.namefind.TokenNameFinderFactory. > > createFeatureGenerators( > > >> > TokenNameFinderFactory.java:153) > > >> > at > > >> > opennlp.tools.namefind.TokenNameFinderFactory. > createContextGenerator( > > >> > TokenNameFinderFactory.java:118) > > >> > at opennlp.tools.namefind.NameFinderME.train(NameFinderME.java:333) > > >> > at com.damiano.parser.trainer.NER.compileNER(NER.java:161) > > >> > at com.damiano.parser.trainer.NER.main(NER.java:136) > > >> > > > >> > Caused by: java.lang.InstantiationException: > > >> > com.damiano.parser.generator.SpanFeatureGenerator > > >> > at java.lang.Class.newInstance(Class.java:427) > > >> > at > > >> > opennlp.tools.util.ext.ExtensionLoader.instantiateExtension( > > >> > ExtensionLoader.java:70) > > >> > ... 14 more > > >> > > > >> > Caused by: java.lang.NoSuchMethodException: > > >> > com.damiano.parser.generator.SpanFeatureGenerator.<init>() > > >> > at java.lang.Class.getConstructor0(Class.java:3082) > > >> > at java.lang.Class.newInstance(Class.java:412) > > >> > ... 15 more > > >> > > > >> > the xml is: > > >> > > > >> > <generators> > > >> > <cache> > > >> > <generators> > > >> > <window prevLength="6" nextLength="3"> > > >> > <tokenclass/> > > >> > </window> > > >> > <window prevLength="6" nextLength="3"> > > >> > <token/> > > >> > </window> > > >> > <definition/> > > >> > <prevmap/> > > >> > <bigram/> > > >> > <sentence begin="true" end="false"/> > > >> > <custom class="com.damiano.parser.generator. > > SpanFeatureGenerator" > > >> > prefix="name" finder="blablabla" prevWindowSize="3" > > nextWindowSize="3"/> > > >> > </generators> > > >> > </cache> > > >> > </generators> > > >> > > > >> > What can i do? > > >> > Thank you! > > >> > > > >> > Damiano > > >> > > > >> > > > > > > > > >
