opennlp.tools.chunker.ChunkerModel Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreemnets. 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.chunker;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import opennlp.model.AbstractModel;
import opennlp.model.BinaryFileDataReader;
import opennlp.model.GenericModelReader;
import opennlp.tools.util.InvalidFormatException;
import opennlp.tools.util.model.BaseModel;
/**
* The {@link ChunkerModel} is the model used
* by a learnable {@link Chunker}.
*
* @see ChunkerME
*/
public class ChunkerModel extends BaseModel {
private static final String COMPONENT_NAME = "ChunkerME";
private static final String CHUNKER_MODEL_ENTRY_NAME = "chunker.model";
public ChunkerModel(String languageCode, AbstractModel chunkerModel, Map manifestInfoEntries) {
super(COMPONENT_NAME, languageCode, manifestInfoEntries);
if (chunkerModel == null)
throw new IllegalArgumentException("chunkerModel must not be null!");
artifactMap.put(CHUNKER_MODEL_ENTRY_NAME, chunkerModel);
}
public ChunkerModel(String languageCode, AbstractModel chunkerModel) {
this(languageCode, chunkerModel, null);
}
public ChunkerModel(InputStream in) throws IOException, InvalidFormatException {
super(COMPONENT_NAME, in);
}
@Override
protected void validateArtifactMap() throws InvalidFormatException {
super.validateArtifactMap();
if (!(artifactMap.get(CHUNKER_MODEL_ENTRY_NAME) instanceof AbstractModel)) {
throw new InvalidFormatException("Chunker model is incomplete!");
}
}
public AbstractModel getChunkerModel() {
return (AbstractModel) artifactMap.get(CHUNKER_MODEL_ENTRY_NAME);
}
public static void main(String[] args) throws FileNotFoundException, IOException {
if (args.length != 4){
System.err.println("ChunkerModel -lang code packageName modelName");
System.exit(1);
}
String lang = args[1];
String packageName = args[2];
String modelName = args[3];
AbstractModel chunkerModel = new GenericModelReader(
new BinaryFileDataReader(new FileInputStream(modelName))).getModel();
ChunkerModel packageModel = new ChunkerModel(lang, chunkerModel);
packageModel.serialize(new FileOutputStream(packageName));
}
}