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A Natural Language Processing framework for Java

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/*
 * (c) 2005 David B. Bracewell
 *
 * 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 com.davidbracewell.hermes.wordnet;

import com.davidbracewell.hermes.tag.POS;
import com.google.common.base.Preconditions;

/**
 * The enum Word net pOS.
 *
 * @author David B. Bracewell
 */
public enum WordNetPOS {
  NOUN('n', "noun", POS.NOUN),
  VERB('v', "verb", POS.VERB),
  ADJECTIVE('a', "adj", POS.ADJECTIVE),
  ADVERB('r', "adv", POS.ADVERB),
  ANY('*', "any", POS.ANY);

  private final char tag;
  private final String shortForm;
  private final POS hermesPOS;

  WordNetPOS(char tag, String shortForm, POS hermesPOS) {
    this.tag = tag;
    this.shortForm = shortForm;
    this.hermesPOS = hermesPOS;
  }

  /**
   * From string.
   *
   * @param string the string
   * @return the word net pOS
   */
  public static WordNetPOS fromString(String string) {
    Preconditions.checkNotNull(string);
    if (string.equalsIgnoreCase("S")) {
      return ADJECTIVE;
    }
    for (WordNetPOS pos : values()) {
      if (pos.shortForm.equalsIgnoreCase(string) || pos.tag == Character.toLowerCase(string.charAt(0))) {
        return pos;
      }
    }
    return WordNetPOS.valueOf(string);
  }

  /**
   * Gets tag.
   *
   * @return the tag
   */
  public char getTag() {
    return tag;
  }


  /**
   * Get short form.
   *
   * @return the string
   */
  public String getShortForm() {
    return shortForm;
  }


  public static WordNetPOS fromHermesPOS(POS pos) {
    if (pos == null) {
      return ANY;
    }
    if (pos.isNoun()) {
      return NOUN;
    }
    if (pos.isVerb()) {
      return VERB;
    }
    if (pos.isAdjective()) {
      return ADJECTIVE;
    }
    if (pos.isAdverb()) {
      return ADVERB;
    }
    return ANY;
  }

  public POS toHermesPOS() {
    return hermesPOS;
  }


}//END OF WordNetPOS