3 import java.io.IOException;
4 import java.util.ArrayList;
6 import java.util.logging.Logger;
8 import edu.stanford.nlp.ie.crf.CRFClassifier;
9 import edu.stanford.nlp.util.CoreMap;
10 import edu.stanford.nlp.util.Triple;
11 import pnews.servlet.Config;
13 /** https://stanfordnlp.github.io/CoreNLP/api.html */
15 private static final String CLASS_NAME = NER.class.getName();
16 private static final Logger LOG = Logger.getLogger(CLASS_NAME);
17 private static final CRFClassifier<CoreMap> classifier = CRFClassifier.getDefaultClassifier();
19 public static List<String> classify(String str, List<String> entities, Config config) throws ClassCastException, ClassNotFoundException, IOException {
21 List<Triple<String, Integer, Integer>> triples;
23 final String FUNCTION_NAME = "classify";
25 LOG.entering(CLASS_NAME, FUNCTION_NAME, str);
27 OpenNLP.classify(str, entities, config);
29 synchronized (classifier) {
30 triples = classifier.classifyToCharacterOffsets(str);
33 for (Triple<String, Integer, Integer> t: triples) {
34 w = str.substring(t.second, t.third);
35 if (!config.isBlacklistedEntity(w) && !entities.contains(w))
39 LOG.exiting(CLASS_NAME, FUNCTION_NAME, entities);
44 public static void main(String[] args) throws Exception {
47 lst = classify("I live in Washington and New York in United States.", new ArrayList<>(), new Config());
49 System.out.println(str);