opennlp.tools.formats.LeipzigDocumentSampleStreamFactory 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.formats;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import opennlp.tools.cmdline.ArgumentParser;
import opennlp.tools.cmdline.ArgumentParser.ParameterDescription;
import opennlp.tools.cmdline.CmdLineUtil;
import opennlp.tools.cmdline.StreamFactoryRegistry;
import opennlp.tools.cmdline.TerminateToolException;
import opennlp.tools.cmdline.params.EncodingParameter;
import opennlp.tools.doccat.DocumentSample;
import opennlp.tools.util.ObjectStream;
import opennlp.tools.util.ObjectStreamUtils;
/**
* Note: Do not use this class, internal use only!
*/
public class LeipzigDocumentSampleStreamFactory
extends AbstractSampleStreamFactory {
protected LeipzigDocumentSampleStreamFactory(Class
params) {
super(params);
}
public static void registerFactory() {
StreamFactoryRegistry.registerFactory(DocumentSample.class,
"leipzig", new LeipzigDocumentSampleStreamFactory(Parameters.class));
}
public ObjectStream create(String[] args) {
Parameters params = ArgumentParser.parse(args, Parameters.class);
File sentencesFileDir = params.getSentencesDir();
File[] sentencesFiles = sentencesFileDir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.contains("sentences") && name.endsWith(".txt");
}
});
@SuppressWarnings("unchecked")
ObjectStream[] sampleStreams =
new ObjectStream[sentencesFiles.length];
for (int i = 0; i < sentencesFiles.length; i++) {
try {
sampleStreams[i] = new LeipzigDoccatSampleStream(
sentencesFiles[i].getName().substring(0, 3), 20,
CmdLineUtil.createInputStreamFactory(sentencesFiles[i]));
} catch (IOException e) {
throw new TerminateToolException(-1, "IO error while opening sample data: " + e.getMessage(), e);
}
}
return ObjectStreamUtils.createObjectStream(sampleStreams);
}
interface Parameters extends EncodingParameter {
@ParameterDescription(valueName = "sentencesDir",
description = "dir with Leipig sentences to be used")
File getSentencesDir();
}
}