001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 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    
021    package org.sonar.squid.recognizer;
022    
023    public class CamelCaseDetector extends Detector {
024    
025      public CamelCaseDetector(double probability) {
026        super(probability);
027      }
028    
029      @Override
030      public int scan(String line) {
031        char previousChar = ' ';
032        char indexChar;
033        for (int i = 0; i < line.length(); i++) {
034          indexChar = line.charAt(i);
035          if (isLowerCaseThenUpperCase(previousChar, indexChar)) {
036            return 1;
037          }
038          previousChar = indexChar;
039        }
040        return 0;
041      }
042    
043      private boolean isLowerCaseThenUpperCase(char previousChar, char indexChar) {
044        return Character.getType(previousChar) == Character.LOWERCASE_LETTER && Character.getType(indexChar) == Character.UPPERCASE_LETTER;
045      }
046    }