src/main/java/jp/sourceforge/stigmata/birthmarks/kgram/KGramBasedBirthmarkService.java

   1 package jp.sourceforge.stigmata.birthmarks.kgram;
   2
   3 /*
   4  * $Id$
   5  */
   6
   7 import jp.sourceforge.stigmata.BirthmarkComparator;
   8 import jp.sourceforge.stigmata.BirthmarkElement;
   9 import jp.sourceforge.stigmata.BirthmarkExtractor;
  10 import jp.sourceforge.stigmata.birthmarks.AbstractBirthmarkService;
  11 import jp.sourceforge.stigmata.birthmarks.comparators.LogicalAndBirthmarkComparator;
  12 import jp.sourceforge.stigmata.spi.BirthmarkSpi;
  13
  14 /**
  15  *
  16  *
  17  *
  18  * @author Haruaki TAMADA
  19  * @version $Revision$
  20  */
  21 public class KGramBasedBirthmarkService extends AbstractBirthmarkService implements BirthmarkSpi{
  22     private BirthmarkComparator comparator = new LogicalAndBirthmarkComparator(this);
  23     private BirthmarkExtractor extractor = new KGramBasedBirthmarkExtractor(this);
  24
  25     public String getType(){
  26         return "kgram";
  27     }
  28
  29     public String getDefaultDescription(){
  30         return "k-gram based birthmark.";
  31     }
  32
  33     public BirthmarkExtractor getExtractor(){
  34         return extractor;
  35     }
  36
  37     public BirthmarkComparator getComparator(){
  38         return comparator;
  39     }
  40
  41     public boolean isExperimental(){
  42         return false;
  43     }
  44
  45     public boolean isUserDefined(){
  46         return false;
  47     }
  48
  49         @Override
  50         public BirthmarkElement buildBirthmarkElement(String value) {
  51                 value = value.trim();
  52                 if(value.startsWith("{") && value.endsWith("}")){
  53                         String[] param = value.substring(1, value.length() - 1).split(", *");
  54                         KGram<Integer> kgram = new KGram<Integer>(param.length);
  55                         for(int i = 0; i < param.length; i++){
  56                                 kgram.set(i, new Integer(param[i].trim()));
  57                         }
  58                         return new KGramBasedBirthmarkElement<Integer>(kgram);
  59                 }
  60                 return null;
  61         }
  62 }