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Java > Open Source Codes > com > tonicsystems > jarjar > AbstractDepHandler


1 /*
2   Jar Jar Links - A utility to repackage and embed Java libraries
3   Copyright (C) 2004 Tonic Systems, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 2 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program; see the file COPYING. if not, write to
17   the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18   Boston, MA 02111-1307 USA
19 */
20
21 package com.tonicsystems.jarjar;
22
23 import com.tonicsystems.jarjar.util.*;
24 import java.io.*;
25 import java.util.*;
26
27 abstract public class AbstractDepHandler implements DepHandler
28 {
29     protected int level;
30     private Set seenIt = new HashSet();
31     
32     protected AbstractDepHandler(int level) {
33         this.level = level;
34     }
35     
36     public void handle(PathClass from, PathClass to) throws IOException {
37         Pair pair;
38         if (level == LEVEL_JAR) {
39             pair = new Pair(from.getClassPath(), to.getClassPath());
40         } else {
41             pair = new Pair(from.getClassName(), to.getClassName());
42         }
43         if (!seenIt.contains(pair)) {
44             seenIt.add(pair);
45             handle((String JavaDoc)pair.getObject1(), (String JavaDoc)pair.getObject2());
46         }
47     }
48
49     abstract protected void handle(String JavaDoc from, String JavaDoc to) throws IOException;
50
51     public void handleStart() throws IOException { }
52     public void handleEnd() throws IOException { }
53 }
54
55
56
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