001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020
021package org.sonar.squid.recognizer;
022
023import java.util.Arrays;
024import java.util.List;
025import java.util.Locale;
026import java.util.StringTokenizer;
027
028public class KeywordsDetector extends Detector {
029
030  private List<String> keywords;
031  private boolean toUpperCase = false;
032
033  public KeywordsDetector(double probability, String... keywords) {
034    super(probability);
035    this.keywords = Arrays.asList(keywords);
036  }
037
038  public KeywordsDetector(double probability, boolean toUpperCase, String... keywords) {
039    this(probability, keywords);
040    this.toUpperCase = toUpperCase;
041  }
042
043  @Override
044  public int scan(String line) {
045    int matchers = 0;
046    if (toUpperCase) {
047      line = line.toUpperCase(Locale.getDefault());
048    }
049    StringTokenizer tokenizer = new StringTokenizer(line, " \t(),{}");
050    while (tokenizer.hasMoreTokens()) {
051      String word = tokenizer.nextToken();
052      if (keywords.contains(word)) {
053        matchers++;
054      }
055    }
056    return matchers;
057  }
058}