| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package opennlp.morfologik.tagdict; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.nio.file.Path; |
| |
| import opennlp.morfologik.builder.POSDictionayBuilderTest; |
| import opennlp.tools.postag.POSModel; |
| import opennlp.tools.postag.POSSample; |
| import opennlp.tools.postag.POSTaggerFactory; |
| import opennlp.tools.postag.POSTaggerME; |
| import opennlp.tools.postag.TagDictionary; |
| import opennlp.tools.postag.WordTagSampleStream; |
| import opennlp.tools.util.ObjectStream; |
| import opennlp.tools.util.TrainingParameters; |
| import opennlp.tools.util.model.ModelType; |
| |
| import org.junit.Test; |
| |
| /** |
| * Tests for the {@link POSTaggerFactory} class. |
| */ |
| public class POSTaggerFactoryTest { |
| |
| private static ObjectStream<POSSample> createSampleStream() |
| throws IOException { |
| InputStream in = POSTaggerFactoryTest.class.getClassLoader() |
| .getResourceAsStream("AnnotatedSentences.txt"); |
| |
| return new WordTagSampleStream((new InputStreamReader(in))); |
| } |
| |
| static POSModel trainPOSModel(ModelType type, POSTaggerFactory factory) |
| throws IOException { |
| return POSTaggerME.train("en", createSampleStream(), |
| TrainingParameters.defaultParams(), factory); |
| } |
| |
| @Test |
| public void testPOSTaggerWithCustomFactory() throws Exception { |
| |
| Path dictionary = POSDictionayBuilderTest.createMorfologikDictionary(); |
| POSTaggerFactory inFactory = new MorfologikPOSTaggerFactory(); |
| TagDictionary inDict = inFactory.createTagDictionary(dictionary.toFile()); |
| inFactory.setTagDictionary(inDict); |
| |
| POSModel posModel = trainPOSModel(ModelType.MAXENT, inFactory); |
| |
| POSTaggerFactory factory = posModel.getFactory(); |
| assertTrue(factory.getTagDictionary() instanceof MorfologikTagDictionary); |
| |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| posModel.serialize(out); |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); |
| |
| POSModel fromSerialized = new POSModel(in); |
| |
| factory = fromSerialized.getFactory(); |
| assertTrue(factory.getTagDictionary() instanceof MorfologikTagDictionary); |
| } |
| |
| } |