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 <kottm...@gmail.com>: > What is the constructor of the > com.damiano.parser.generator.SpanFeatureGenerator > class? > > Jörn > > On Tue, Oct 25, 2016 at 11:51 AM, Damiano Porta <damianopo...@gmail.com> > 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 > > >