01: /* ====================================================================
02: The Jicarilla Software License
03:
04: Copyright (c) 2003 Leo Simons.
05: All rights reserved.
06:
07: Permission is hereby granted, free of charge, to any person obtaining
08: a copy of this software and associated documentation files (the
09: "Software"), to deal in the Software without restriction, including
10: without limitation the rights to use, copy, modify, merge, publish,
11: distribute, sublicense, and/or sell copies of the Software, and to
12: permit persons to whom the Software is furnished to do so, subject to
13: the following conditions:
14:
15: The above copyright notice and this permission notice shall be
16: included in all copies or substantial portions of the Software.
17:
18: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21: IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22: CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23: TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24: SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25: ==================================================================== */
26: package org.jicarilla.container.util;
27:
28: import org.jicarilla.lang.Selector;
29: import org.jicarilla.lang.StringSelector;
30: import org.jicarilla.lang.EquivalenceSelector;
31: import org.jicarilla.container.selectors.ClassSelector;
32: import org.jicarilla.container.selectors.ResolverSelector;
33: import org.jicarilla.container.Resolver;
34:
35: /**
36: *
37: *
38: * @author <a href="lsimons at jicarilla dot org">Leo Simons</a>
39: * @version $Id: PolicyUtil.java,v 1.2 2004/03/23 14:34:48 lsimons Exp $
40: */
41: public class PolicyUtil {
42: public static Selector getSelectorForCriterion(
43: final Object criterion) {
44: Selector selector;
45:
46: if (criterion instanceof Selector) {
47: selector = (Selector) criterion;
48: } else if (criterion instanceof Class) {
49: selector = new ClassSelector((Class) criterion);
50: } else if (criterion instanceof String) {
51: try {
52: final Class clazz = ReflectionUtil
53: .loadClass((String) criterion);
54: selector = new ClassSelector(clazz);
55: } catch (ClassNotFoundException e) {
56: selector = new StringSelector((String) criterion);
57: }
58: } else if (criterion instanceof Resolver) {
59: selector = new ResolverSelector((Resolver) criterion);
60: } else {
61: selector = new EquivalenceSelector(criterion);
62: }
63:
64: return selector;
65: }
66: }
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