FilterElement.java revision db267bc191f906f55eaef21a27110cce2ec57fdf 
1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21package proguard.ant;
22
23import org.apache.tools.ant.types.DataType;
24import proguard.classfile.util.ClassUtil;
25import proguard.util.ListUtil;
26
27import java.util.List;
28
29/**
30 * This DataType represents a name filter in Ant.
31 *
32 * @author Eric Lafortune
33 */
34public class FilterElement extends DataType
35{
36    private String filter;
37
38
39    /**
40     * Adds the contents of this element to the given name filter.
41     * @param filter   the list of attributes to be extended.
42     * @param internal specifies whether the filter string should be converted
43     *                 to internal types.
44     */
45    public void appendTo(List filter, boolean internal)
46    {
47        // Get the referenced element, or else this one.
48        FilterElement filterElement = isReference() ?
49            (FilterElement)getCheckedRef(this.getClass(),
50                                         this.getClass().getName()) :
51            this;
52
53        String filterString = filterElement.filter;
54
55        if (filterString == null)
56        {
57            // Clear the filter to keep all names.
58            filter.clear();
59        }
60        else
61        {
62            if (internal)
63            {
64                filterString = ClassUtil.internalClassName(filterString);
65            }
66
67            // Append the filter.
68            filter.addAll(ListUtil.commaSeparatedList(filterString));
69        }
70    }
71
72
73    // Ant task attributes.
74
75    public void setName(String name)
76    {
77        this.filter = name;
78    }
79
80
81    public void setFilter(String filter)
82    {
83        this.filter = filter;
84    }
85}
86