1 /*
2 * SmartCrawler
3 *
4 * $Id: AbstractPattern.java,v 1.5 2005/08/05 15:55:53 vincool Exp $
5 * Copyright 2005 Davide Pozza
6 *
7 * This program is free software; you can redistribute it
8 * and/or modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation;
10 * either version 2 of the License, or (at your option) any
11 * later version.
12 *
13 * This program is distributed in the hope that it will be
14 * useful, but WITHOUT ANY WARRANTY; without even the implied
15 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
16 * PURPOSE. See the GNU General Public License for more
17 * details.
18 *
19 * You should have received a copy of the GNU General Public
20 * License along with this program; if not, write to the Free
21 * Software Foundation, Inc., 59 Temple Place, Suite 330,
22 * Boston, MA 02111-1307 USA
23 *
24 */
25
26 package org.smartcrawler.extractor.pattern;
27
28 import java.util.regex.Pattern;
29
30 /***
31 *
32 *
33 * @author <a href="mailto:pozzad@alice.it">Davide Pozza</a>
34 * @version <tt>$Revision: 1.5 $</tt>
35 */
36 public abstract class AbstractPattern {
37
38 protected Pattern pattern;
39
40 public AbstractPattern() {
41 }
42
43 /***
44 *
45 * @return
46 */
47 public Pattern getPattern(){
48 if (pattern == null)
49 pattern = Pattern.compile(getStringPattern(),
50 Pattern.MULTILINE |
51 Pattern.CASE_INSENSITIVE |
52 Pattern.DOTALL);
53 return pattern;
54 }
55 /***
56 *
57 * @return
58 */
59 //public abstract String getStringPattern();
60 protected abstract String getStringPattern();
61
62 /***
63 *
64 * @return
65 */
66 //public abstract void setStringPattern(String stringPattern);
67 public abstract void setStringPattern(String stringPattern);
68
69 /***
70 *
71 * @return
72 */
73 public int getGroupAsInt() {
74 try {
75 return Integer.parseInt(getGroup());
76 } catch(Exception e){
77 return -1;
78 }
79 }
80
81 /***
82 *
83 * @return
84 */
85 public abstract String getGroup();
86 /***
87 *
88 * @param group
89 */
90 public abstract void setGroup(String group);
91
92 }