StanfordPOSTagger.java

package kb.howtokb.taskframe.extractor;

import edu.stanford.nlp.tagger.maxent.MaxentTagger;

/**
 * @author ntandon
 *
 */
public class StanfordPOSTagger implements IPOSTagger {

	static MaxentTagger tagger;

	@Override
	public String tag(String p_Sentence) {

		if (tagger == null)
			tagger = new MaxentTagger(MaxentTagger.DEFAULT_JAR_PATH);
		if (p_Sentence == null || p_Sentence.isEmpty()) { return ""; }
		return tagger.tagString(p_Sentence);
	}
	/*
	 * Original
	 * 
	@Override
	public String getTag(String input) {
		String retVal = null;
		if (input != null) {
			int index = input.lastIndexOf('_'); // /
			if (index >= 0 && index < input.length()) {
				retVal = input.substring(index + 1);
			}
		}
		return retVal;
	}

	@Override
	public String getToken(String input) {
		String retVal = null;
		if (input != null) {
			int index = input.lastIndexOf('_'); // /
			if (index >= 0 && index < input.length()) {
				retVal = input.substring(0, index);
			}
		}
		return retVal;
	}
	*/
	@Override
	public String getTag(String input) {
		String retVal = null;
		if (input != null) {
			int firstindex = input.indexOf('_');
			int index = input.indexOf(' '); // /
			if (index >= 0 && index < input.length()) {
				retVal = input.substring(firstindex+1, index);
			}
		}
		return retVal;
	}

	@Override
	public String getToken(String input) {
		String retVal = null;
		if (input != null) {
			int index = input.indexOf('_'); // /
			if (index >= 0 && index < input.length()) {
				retVal = input.substring(0, index);
			}
		}
		return retVal;
	}

}