01: /**
02: * Copyright (c) 2004, www.pdfbox.org
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions are met:
07: *
08: * 1. Redistributions of source code must retain the above copyright notice,
09: * this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: * 3. Neither the name of pdfbox; nor the names of its
14: * contributors may be used to endorse or promote products derived from this
15: * software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20: * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24: * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27: *
28: * http://www.pdfbox.org
29: *
30: */package org.pdfbox.util;
31:
32: import java.io.InputStream;
33: import java.io.IOException;
34:
35: import javax.xml.parsers.DocumentBuilder;
36: import javax.xml.parsers.DocumentBuilderFactory;
37:
38: import org.w3c.dom.Document;
39: import org.w3c.dom.Element;
40: import org.w3c.dom.Node;
41: import org.w3c.dom.NodeList;
42: import org.w3c.dom.Text;
43:
44: /**
45: * This class with handle some simple XML operations.
46: *
47: * @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
48: * @version $Revision: 1.3 $
49: */
50: public class XMLUtil {
51: /**
52: * Utility class, should not be instantiated.
53: *
54: */
55: private XMLUtil() {
56: }
57:
58: /**
59: * This will parse an XML stream and create a DOM document.
60: *
61: * @param is The stream to get the XML from.
62: * @return The DOM document.
63: * @throws IOException It there is an error creating the dom.
64: */
65: public static Document parse(InputStream is) throws IOException {
66: try {
67: DocumentBuilderFactory builderFactory = DocumentBuilderFactory
68: .newInstance();
69: DocumentBuilder builder = builderFactory
70: .newDocumentBuilder();
71: return builder.parse(is);
72: } catch (Exception e) {
73: IOException thrown = new IOException(e.getMessage());
74: throw thrown;
75: }
76: }
77:
78: /**
79: * This will get the text value of an element.
80: *
81: * @param node The node to get the text value for.
82: * @return The text of the node.
83: */
84: public static String getNodeValue(Element node) {
85: String retval = "";
86: NodeList children = node.getChildNodes();
87: for (int i = 0; i < children.getLength(); i++) {
88: Node next = children.item(i);
89: if (next instanceof Text) {
90: retval = next.getNodeValue();
91: }
92: }
93: return retval;
94: }
95: }
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