opennlp.tools.util.featuregen.DictionaryFeatureGeneratorFactory Maven / Gradle / Ivy
/*
* 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.tools.util.featuregen;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import opennlp.tools.dictionary.Dictionary;
import opennlp.tools.util.InvalidFormatException;
import opennlp.tools.util.model.ArtifactSerializer;
import opennlp.tools.util.model.DictionarySerializer;
/**
* @see DictionaryFeatureGenerator
*/
public class DictionaryFeatureGeneratorFactory
extends GeneratorFactory.AbstractXmlFeatureGeneratorFactory {
private static final String DICT = "dict";
public DictionaryFeatureGeneratorFactory() {
super();
}
@Override
public AdaptiveFeatureGenerator create() throws InvalidFormatException {
Dictionary d;
if (resourceManager == null) { // load the dictionary directly
String dictResourcePath = getStr(DICT);
ClassLoader cl = Thread.currentThread().getContextClassLoader();
try (InputStream is = cl.getResourceAsStream(dictResourcePath)) {
if (is != null) {
d = ((DictionarySerializer) getArtifactSerializerMapping().get(dictResourcePath)).create(is);
} else {
throw new InvalidFormatException("No dictionary resource at: '" + dictResourcePath);
}
} catch (IOException e) {
throw new InvalidFormatException("Error processing resource at: " + dictResourcePath, e);
}
} else { // get the dictionary via a resourceManager lookup
String dictResourceKey = getStr(DICT);
Object dictResource = resourceManager.getResource(dictResourceKey);
if (dictResource instanceof Dictionary dict) {
d = dict;
} else {
throw new InvalidFormatException("No dictionary resource for key: " + dictResourceKey);
}
}
return new DictionaryFeatureGenerator(d);
}
@Override
public Map> getArtifactSerializerMapping() throws InvalidFormatException {
Map> mapping = new HashMap<>();
mapping.put(getStr(DICT), new DictionarySerializer());
return mapping;
}
}