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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 2001-2004 (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 | * $Id: RuleSet.java,v 1.8 2004/06/25 12:34:48 maartenc Exp $ | |
8 | */ | |
9 | ||
10 | package org.dom4j.rule; | |
11 | ||
12 | import java.util.ArrayList; | |
13 | import java.util.Collections; | |
14 | ||
15 | import org.dom4j.Node; | |
16 | ||
17 | /** <p><code>RuleSet</code> manages a set of rules which are sorted | |
18 | * in order of relevance according to the XSLT defined conflict | |
19 | * resolution policy. This makes finding the correct rule for | |
20 | * a DOM4J Node using the XSLT processing model efficient as the | |
21 | * rules can be evaluated in order of priority.</p> | |
22 | * | |
23 | * @author <a href="mailto:james.strachan@metastuff.com">James Strachan</a> | |
24 | * @version $Revision: 1.8 $ | |
25 | */ | |
26 | public class RuleSet { | |
27 | ||
28 | /** An unordered list of Rule objects */ | |
29 | private ArrayList rules = new ArrayList(); | |
30 | ||
31 | /** A lazily evaluated and cached array of rules sorted */ | |
32 | private Rule[] ruleArray; | |
33 | ||
34 | 16 | public RuleSet() { |
35 | } | |
36 | ||
37 | 0 | public String toString() { |
38 | 0 | return super.toString() + " [RuleSet: " + rules + " ]"; |
39 | } | |
40 | ||
41 | ||
42 | /** Performs an XSLT processing model match for the rule | |
43 | * which matches the given Node the best. | |
44 | * | |
45 | * @param node is the DOM4J Node to match against | |
46 | * @return the matching Rule or no rule if none matched | |
47 | */ | |
48 | 60 | public Rule getMatchingRule( Node node ) { |
49 | 60 | Rule[] rules = getRuleArray(); |
50 | 116 | for ( int i = rules.length - 1; i >= 0; i-- ) { |
51 | 116 | Rule rule = rules[i]; |
52 | 116 | if ( rule.matches( node ) ) { |
53 | 60 | return rule; |
54 | } | |
55 | } | |
56 | 0 | return null; |
57 | } | |
58 | ||
59 | 42 | public void addRule(Rule rule) { |
60 | 42 | rules.add( rule ); |
61 | 42 | ruleArray = null; |
62 | } | |
63 | ||
64 | 0 | public void removeRule(Rule rule) { |
65 | 0 | rules.remove( rule ); |
66 | 0 | ruleArray = null; |
67 | } | |
68 | ||
69 | /** Adds all the rules to this RuleSet from the given other rule set. | |
70 | */ | |
71 | 0 | public void addAll(RuleSet that) { |
72 | 0 | rules.addAll( that.rules ); |
73 | 0 | ruleArray = null; |
74 | } | |
75 | ||
76 | /** Returns an array of sorted rules. | |
77 | * | |
78 | * @return the rules as a sorted array in ascending precendence | |
79 | * so that the rules at the end of the array should be used first | |
80 | */ | |
81 | 60 | protected Rule[] getRuleArray() { |
82 | 60 | if ( ruleArray == null ) { |
83 | 16 | Collections.sort( rules ); |
84 | 16 | int size = rules.size(); |
85 | 16 | ruleArray = new Rule[ size ]; |
86 | 16 | rules.toArray( ruleArray ); |
87 | } | |
88 | 60 | return ruleArray; |
89 | } | |
90 | ||
91 | } | |
92 | ||
93 | ||
94 | ||
95 | ||
96 | /* | |
97 | * Redistribution and use of this software and associated documentation | |
98 | * ("Software"), with or without modification, are permitted provided | |
99 | * that the following conditions are met: | |
100 | * | |
101 | * 1. Redistributions of source code must retain copyright | |
102 | * statements and notices. Redistributions must also contain a | |
103 | * copy of this document. | |
104 | * | |
105 | * 2. Redistributions in binary form must reproduce the | |
106 | * above copyright notice, this list of conditions and the | |
107 | * following disclaimer in the documentation and/or other | |
108 | * materials provided with the distribution. | |
109 | * | |
110 | * 3. The name "DOM4J" must not be used to endorse or promote | |
111 | * products derived from this Software without prior written | |
112 | * permission of MetaStuff, Ltd. For written permission, | |
113 | * please contact dom4j-info@metastuff.com. | |
114 | * | |
115 | * 4. Products derived from this Software may not be called "DOM4J" | |
116 | * nor may "DOM4J" appear in their names without prior written | |
117 | * permission of MetaStuff, Ltd. DOM4J is a registered | |
118 | * trademark of MetaStuff, Ltd. | |
119 | * | |
120 | * 5. Due credit should be given to the DOM4J Project - | |
121 | * http://www.dom4j.org | |
122 | * | |
123 | * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS | |
124 | * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT | |
125 | * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
126 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
127 | * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
128 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
129 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
130 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
131 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
132 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
133 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
134 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
135 | * | |
136 | * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | |
137 | * | |
138 | * $Id: RuleSet.java,v 1.8 2004/06/25 12:34:48 maartenc Exp $ | |
139 | */ |
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