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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
RuleSet.java | 83,3% | 68,4% | 57,1% | 68,8% |
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1 | /* | |
2 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
3 | * | |
4 | * This software is open source. | |
5 | * See the bottom of this file for the licence. | |
6 | */ | |
7 | ||
8 | package org.dom4j.rule; | |
9 | ||
10 | import java.util.ArrayList; | |
11 | import java.util.Collections; | |
12 | ||
13 | import org.dom4j.Node; | |
14 | ||
15 | /** | |
16 | * <p> | |
17 | * <code>RuleSet</code> manages a set of rules which are sorted in order of | |
18 | * relevance according to the XSLT defined conflict resolution policy. This | |
19 | * makes finding the correct rule for a DOM4J Node using the XSLT processing | |
20 | * model efficient as the rules can be evaluated in order of priority. | |
21 | * </p> | |
22 | * | |
23 | * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a> | |
24 | * @version $Revision: 1.10 $ | |
25 | */ | |
26 | public class RuleSet { | |
27 | /** An unordered list of Rule objects */ | |
28 | private ArrayList rules = new ArrayList(); | |
29 | ||
30 | /** A lazily evaluated and cached array of rules sorted */ | |
31 | private Rule[] ruleArray; | |
32 | ||
33 | 14 | public RuleSet() { |
34 | } | |
35 | ||
36 | 0 | public String toString() { |
37 | 0 | return super.toString() + " [RuleSet: " + rules + " ]"; |
38 | } | |
39 | ||
40 | /** | |
41 | * Performs an XSLT processing model match for the rule which matches the | |
42 | * given Node the best. | |
43 | * | |
44 | * @param node | |
45 | * is the DOM4J Node to match against | |
46 | * | |
47 | * @return the matching Rule or no rule if none matched | |
48 | */ | |
49 | 28 | public Rule getMatchingRule(Node node) { |
50 | 28 | Rule[] matches = getRuleArray(); |
51 | ||
52 | 49 | for (int i = matches.length - 1; i >= 0; i--) { |
53 | 49 | Rule rule = matches[i]; |
54 | ||
55 | 49 | if (rule.matches(node)) { |
56 | 28 | return rule; |
57 | } | |
58 | } | |
59 | ||
60 | 0 | return null; |
61 | } | |
62 | ||
63 | 28 | public void addRule(Rule rule) { |
64 | 28 | rules.add(rule); |
65 | 28 | ruleArray = null; |
66 | } | |
67 | ||
68 | 0 | public void removeRule(Rule rule) { |
69 | 0 | rules.remove(rule); |
70 | 0 | ruleArray = null; |
71 | } | |
72 | ||
73 | /** | |
74 | * Adds all the rules to this RuleSet from the given other rule set. | |
75 | * | |
76 | * @param that | |
77 | * DOCUMENT ME! | |
78 | */ | |
79 | 0 | public void addAll(RuleSet that) { |
80 | 0 | rules.addAll(that.rules); |
81 | 0 | ruleArray = null; |
82 | } | |
83 | ||
84 | /** | |
85 | * Returns an array of sorted rules. | |
86 | * | |
87 | * @return the rules as a sorted array in ascending precendence so that the | |
88 | * rules at the end of the array should be used first | |
89 | */ | |
90 | 28 | protected Rule[] getRuleArray() { |
91 | 28 | if (ruleArray == null) { |
92 | 8 | Collections.sort(rules); |
93 | ||
94 | 8 | int size = rules.size(); |
95 | 8 | ruleArray = new Rule[size]; |
96 | 8 | rules.toArray(ruleArray); |
97 | } | |
98 | ||
99 | 28 | return ruleArray; |
100 | } | |
101 | } | |
102 | ||
103 | /* | |
104 | * Redistribution and use of this software and associated documentation | |
105 | * ("Software"), with or without modification, are permitted provided that the | |
106 | * following conditions are met: | |
107 | * | |
108 | * 1. Redistributions of source code must retain copyright statements and | |
109 | * notices. Redistributions must also contain a copy of this document. | |
110 | * | |
111 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
112 | * this list of conditions and the following disclaimer in the documentation | |
113 | * and/or other materials provided with the distribution. | |
114 | * | |
115 | * 3. The name "DOM4J" must not be used to endorse or promote products derived | |
116 | * from this Software without prior written permission of MetaStuff, Ltd. For | |
117 | * written permission, please contact dom4j-info@metastuff.com. | |
118 | * | |
119 | * 4. Products derived from this Software may not be called "DOM4J" nor may | |
120 | * "DOM4J" appear in their names without prior written permission of MetaStuff, | |
121 | * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd. | |
122 | * | |
123 | * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org | |
124 | * | |
125 | * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND | |
126 | * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
127 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
128 | * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE | |
129 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
130 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
131 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
132 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
133 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
134 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
135 | * POSSIBILITY OF SUCH DAMAGE. | |
136 | * | |
137 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
138 | */ |
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