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Java > Open Source Codes > org > krysalis > barcode > xalan > ElemWrappingConfiguration


1 /*
2  * $Id: ElemWrappingConfiguration.java,v 1.2 2003/10/22 17:09:42 jmaerki Exp $
3  * ============================================================================
4  * The Krysalis Patchy Software License, Version 1.1_01
5  * Copyright (c) 2003 Nicola Ken Barozzi. All rights reserved.
6  *
7  * This Licence is compatible with the BSD licence as described and
8  * approved by http://www.opensource.org/, and is based on the
9  * Apache Software Licence Version 1.1.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  *
15  * 1. Redistributions of source code must retain the above copyright
16  * notice, this list of conditions and the following disclaimer.
17  *
18  * 2. Redistributions in binary form must reproduce the above copyright
19  * notice, this list of conditions and the following disclaimer in
20  * the documentation and/or other materials provided with the
21  * distribution.
22  *
23  * 3. The end-user documentation included with the redistribution,
24  * if any, must include the following acknowledgment:
25  * "This product includes software developed for project
26  * Krysalis (http://www.krysalis.org/)."
27  * Alternately, this acknowledgment may appear in the software itself,
28  * if and wherever such third-party acknowledgments normally appear.
29  *
30  * 4. The names "Krysalis" and "Nicola Ken Barozzi" and
31  * "Krysalis Barcode" must not be used to endorse or promote products
32  * derived from this software without prior written permission. For
33  * written permission, please contact nicolaken@krysalis.org.
34  *
35  * 5. Products derived from this software may not be called "Krysalis",
36  * "Krysalis Barcode", nor may "Krysalis" appear in their name,
37  * without prior written permission of Nicola Ken Barozzi.
38  *
39  * 6. This software may contain voluntary contributions made by many
40  * individuals, who decided to donate the code to this project in
41  * respect of this licence, and was originally created by
42  * Jeremias Maerki <jeremias@maerki.org>.
43  *
44  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
45  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
47  * DISCLAIMED. IN NO EVENT SHALL THE KRYSALIS PROJECT OR
48  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
50  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
51  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
52  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
54  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55  * SUCH DAMAGE.
56  * ====================================================================
57  */
58 package org.krysalis.barcode.xalan;
59
60 import java.util.List JavaDoc;
61
62 import org.apache.avalon.framework.configuration.AbstractConfiguration;
63 import org.apache.avalon.framework.configuration.Configuration;
64 import org.apache.avalon.framework.configuration.ConfigurationException;
65 import org.w3c.dom.Element JavaDoc;
66 import org.w3c.dom.Node JavaDoc;
67 import org.w3c.dom.NodeList JavaDoc;
68
69 /**
70  * Implementation of the Avalon Configuration interface that wraps the
71  * not fully implemented DOM nodes coming from Xalan-J.
72  *
73  * @author Jeremias Maerki
74  */
75 public class ElemWrappingConfiguration extends AbstractConfiguration {
76
77     private Element JavaDoc elem;
78
79     /**
80      * Creates a new Configuration wrapper/adapter around a DOM element.
81      * @param elem the DOM element
82      */
83     public ElemWrappingConfiguration(Element JavaDoc elem) {
84         this.elem = elem;
85     }
86     
87     /**
88      * @see org.apache.avalon.framework.configuration.AbstractConfiguration#getPrefix()
89      */
90     protected String JavaDoc getPrefix() throws ConfigurationException {
91         return null;
92     }
93
94     /**
95      * @see org.apache.avalon.framework.configuration.Configuration#getName()
96      */
97     public String JavaDoc getName() {
98         return this.elem.getLocalName();
99     }
100
101     /**
102      * @see org.apache.avalon.framework.configuration.Configuration#getLocation()
103      */
104     public String JavaDoc getLocation() {
105         return "unknown";
106     }
107
108     /**
109      * @see org.apache.avalon.framework.configuration.Configuration#getNamespace()
110      */
111     public String JavaDoc getNamespace() throws ConfigurationException {
112         return null;
113     }
114
115     /**
116      * @see org.apache.avalon.framework.configuration.Configuration#getChildren()
117      */
118     public Configuration[] getChildren() {
119         Configuration[] cfgList = new Configuration[this.elem.getChildNodes().getLength()];
120         for (int i = 0; i < cfgList.length; i++) {
121             cfgList[i] = new ElemWrappingConfiguration((Element JavaDoc)this.elem.getChildNodes().item(i));
122         }
123         return cfgList;
124     }
125
126     /**
127      * @see org.apache.avalon.framework.configuration.Configuration#getChildren(java.lang.String)
128      */
129     public Configuration[] getChildren(String JavaDoc name) {
130         List JavaDoc cfgList = new java.util.LinkedList JavaDoc();
131         NodeList JavaDoc elems = this.elem.getChildNodes();
132         for (int i = 0; i < elems.getLength(); i++) {
133             final Node JavaDoc node = elems.item(i);
134             if ((node instanceof Element JavaDoc)
135                     && (node.getLocalName().equals(name))) {
136                 cfgList.add(new ElemWrappingConfiguration((Element JavaDoc)node));
137             }
138         }
139         return (Configuration[])cfgList.toArray(new Configuration[cfgList.size()]);
140     }
141
142     /**
143      * @see org.apache.avalon.framework.configuration.Configuration#getAttributeNames()
144      */
145     public String JavaDoc[] getAttributeNames() {
146         throw new UnsupportedOperationException JavaDoc("getAttributeNames() is not supported");
147     }
148
149     /**
150      * @see org.apache.avalon.framework.configuration.Configuration#getAttribute(java.lang.String)
151      */
152     public String JavaDoc getAttribute(String JavaDoc name) throws ConfigurationException {
153         final String JavaDoc s = this.elem.getAttribute(name);
154         if (s != null) {
155             return s;
156         } else {
157             throw new ConfigurationException("Attribut '" + name + "' does not exist");
158         }
159     }
160
161     /**
162      * @see org.apache.avalon.framework.configuration.Configuration#getValue()
163      */
164     public String JavaDoc getValue() throws ConfigurationException {
165         //System.out.println(elem.getClass().getName() + " " + elem.getLocalName());
166 //System.out.println(elem.hasChildNodes() + " " + elem.getChildNodes().getLength());
167 //System.out.println(elem.getNodeValue());
168 NodeList JavaDoc nodes = elem.getChildNodes();
169         StringBuffer JavaDoc sb = new StringBuffer JavaDoc();
170         for (int i = 0; i < nodes.getLength(); i++) {
171             final Node JavaDoc node = nodes.item(i);
172             //System.out.println(node + " " + node.getNodeType()
173 // + " " + node.getChildNodes().getLength());
174 //System.out.println(node.getNodeValue());
175 if (node.getNodeType() != Node.TEXT_NODE) {
176                 sb.append(node.getNodeValue());
177             }
178         }
179         return sb.toString();
180     }
181
182 }
183
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