/*
* 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.cmdline.namefind;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import opennlp.tools.cmdline.CLI;
import opennlp.tools.cmdline.CmdLineTool;
import opennlp.tools.cmdline.CmdLineUtil;
import opennlp.tools.cmdline.PerformanceMonitor;
import opennlp.tools.cmdline.TerminateToolException;
import opennlp.tools.namefind.NameFinderME;
import opennlp.tools.namefind.NameSample;
import opennlp.tools.namefind.TokenNameFinder;
import opennlp.tools.namefind.TokenNameFinderModel;
import opennlp.tools.tokenize.WhitespaceTokenizer;
import opennlp.tools.util.ObjectStream;
import opennlp.tools.util.PlainTextByLineStream;
import opennlp.tools.util.Span;
public final class TokenNameFinderTool implements CmdLineTool {
public String getName() {
return "TokenNameFinder";
}
public String getShortDescription() {
return "learnable name finder";
}
public String getHelp() {
return "Usage: " + CLI.CMD + " " + getName() + " model1 model2 ... modelN < sentences";
}
public void run(String[] args) {
if (args.length == 0) {
System.out.println(getHelp());
throw new TerminateToolException(1);
}
NameFinderME nameFinders[] = new NameFinderME[args.length];
for (int i = 0; i < nameFinders.length; i++) {
TokenNameFinderModel model = new TokenNameFinderModelLoader().load(new File(args[i]));
nameFinders[i] = new NameFinderME(model);
}
ObjectStream<String> untokenizedLineStream =
new PlainTextByLineStream(new InputStreamReader(System.in));
PerformanceMonitor perfMon = new PerformanceMonitor(System.err, "sent");
perfMon.start();
try {
String line;
while((line = untokenizedLineStream.read()) != null) {
String whitespaceTokenizerLine[] = WhitespaceTokenizer.INSTANCE.tokenize(line);
// A new line indicates a new document,
// adaptive data must be cleared for a new document
if (whitespaceTokenizerLine.length == 0) {
for (int i = 0; i < nameFinders.length; i++)
nameFinders[i].clearAdaptiveData();
}
List<Span> names = new ArrayList<Span>();
for (TokenNameFinder nameFinder : nameFinders) {
Collections.addAll(names, nameFinder.find(whitespaceTokenizerLine));
}
// Simple way to drop intersecting spans, otherwise the
// NameSample is invalid
Span reducedNames[] = NameFinderME.dropOverlappingSpans(
names.toArray(new Span[names.size()]));
NameSample nameSample = new NameSample(whitespaceTokenizerLine,
reducedNames, false);
System.out.println(nameSample.toString());
perfMon.incrementCounter();
}
}
catch (IOException e) {
CmdLineUtil.handleStdinIoError(e);
}
perfMon.stopAndPrintFinalResult();
}
}