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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/XMLUtils.java @ 23:00596a591a2f

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Added possibibilty to ceate XPaths with namespace contextes. artifacts/trunk@57 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 10 Sep 2009 08:14:03 +0000
parents ff666592c1c3
children ccc6aae25585
rev   line source
20
ff666592c1c3 Added factory listing '/factories' to web app.
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1 package de.intevation.artifactdatabase;
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2
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3 import org.w3c.dom.Document;
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4 import org.w3c.dom.Element;
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5 import org.w3c.dom.Attr;
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6
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7 import javax.xml.parsers.DocumentBuilderFactory;
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8
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9 import javax.xml.parsers.ParserConfigurationException;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import javax.xml.xpath.XPathFactory;
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14 import javax.xml.xpath.XPath;
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15
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16 import javax.xml.namespace.NamespaceContext;
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17
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18
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19 /**
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20 * @author Sascha L. Teichmann
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21 */
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22 public final class XMLUtils
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23 {
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24 private static Logger logger = Logger.getLogger(XMLUtils.class);
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25
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26 private XMLUtils() {
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27 }
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28
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29 public static class ElementCreator
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30 {
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31 protected Document document;
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32 protected String ns;
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33 protected String prefix;
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34
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35 public ElementCreator(Document document, String ns, String prefix) {
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36 this.document = document;
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37 this.ns = ns;
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38 this.prefix = prefix;
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39 }
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40
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41 public Element create(String name) {
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42 Element element = document.createElementNS(ns, name);
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43 element.setPrefix(prefix);
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44 return element;
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45 }
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46
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47 public void addAttr(Element element, String name, String value) {
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48 Attr attr = document.createAttributeNS(ns, name);
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49 attr.setValue(value);
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50 attr.setPrefix(prefix);
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51 element.setAttributeNode(attr);
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52 }
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53 } // class ElementCreator
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54
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55 public static final Document newDocument() {
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56 try {
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57 return DocumentBuilderFactory
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58 .newInstance()
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59 .newDocumentBuilder()
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60 .newDocument();
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61 }
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62 catch (ParserConfigurationException pce) {
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63 logger.error(pce.getLocalizedMessage(), pce);
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64 }
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65 return null;
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66 }
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67
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68 public static final XPath newXPath() {
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69 return newXPath(null);
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70 }
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71
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72 public static final XPath newXPath(NamespaceContext namespaceContext) {
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73 XPathFactory factory = XPathFactory.newInstance();
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74 XPath xpath = factory.newXPath();
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75 if (namespaceContext != null) {
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76 xpath.setNamespaceContext(namespaceContext);
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77 }
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78 return xpath;
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79 }
20
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80 }
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81 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org