Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/utils/ArtifactXMLUtilities.java @ 76:2473440671ce

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Integrate UI-Representation for Describe into the FISArtifact. gnv-artifacts/trunk@87 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 15 Sep 2009 10:11:08 +0000
parents 9345835e2bc1
children e33c61735a4e
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.utils;
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5
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6 import java.io.File;
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7 import java.io.IOException;
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8 import java.io.InputStream;
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9 import java.io.Serializable;
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10 import java.io.StringBufferInputStream;
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11 import java.io.StringWriter;
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12
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13 import javax.xml.parsers.DocumentBuilder;
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14 import javax.xml.parsers.DocumentBuilderFactory;
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15 import javax.xml.parsers.ParserConfigurationException;
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16 import javax.xml.transform.Transformer;
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17 import javax.xml.transform.TransformerConfigurationException;
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18 import javax.xml.transform.TransformerException;
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19 import javax.xml.transform.TransformerFactory;
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20 import javax.xml.transform.TransformerFactoryConfigurationError;
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21 import javax.xml.transform.dom.DOMSource;
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22 import javax.xml.transform.stream.StreamResult;
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23
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24 import org.apache.log4j.Logger;
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25 import org.w3c.dom.Document;
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26 import org.w3c.dom.Element;
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27 import org.xml.sax.SAXException;
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28
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29 import de.intevation.artifacts.ArtifactNamespaceContext;
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30 import de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition;
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31
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32 /**
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33 * @author Tim Englich <tim.englich@intevation.de>
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34 *
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35 */
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36 public class ArtifactXMLUtilities implements Serializable{
71
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37 /**
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38 * the logger, used to log exceptions and additonaly information
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39 */
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40 private static Logger log = Logger.getLogger(TimeSeriesOutputTransition.class);
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41
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42 public static final String XFORM_URL = "http://www.w3.org/2002/xforms";
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43 public static final String XFORM_PREFIX = "xform";
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44
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45 /**
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46 * Constructor
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47 */
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48 public ArtifactXMLUtilities() {
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49 }
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50
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51 /**
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52 * @param document
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53 * @return
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54 */
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55 public Element createArtifactElement(Document document, String name) {
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56 Element node = document.createElementNS(ArtifactNamespaceContext.NAMESPACE_URI, name);
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57 node.setPrefix(ArtifactNamespaceContext.NAMESPACE_PREFIX);
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58 return node;
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59 }
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60
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61 public String writeDocument2String(Document document){
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62 try {
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63 TransformerFactory transformerFactory = TransformerFactory.newInstance();
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64 Transformer transformer = transformerFactory.newTransformer();
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65 DOMSource source = new DOMSource(document);
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66 StringWriter sw = new StringWriter();
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67 StreamResult result = new StreamResult(sw);
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68 transformer.transform(source, result);
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69 return sw.getBuffer().toString();
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70 } catch (TransformerConfigurationException e) {
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71 log.error(e,e);
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72 } catch (TransformerFactoryConfigurationError e) {
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73 log.error(e,e);
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74 } catch (TransformerException e) {
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75 log.error(e,e);
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76 }
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77 return null;
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78 }
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79
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80 public Document readDocument(InputStream inputStream){
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81 Document returnValue = null;
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82 try {
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83 DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
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84 DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
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85 returnValue = docBuilder.parse (inputStream);
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86 } catch (ParserConfigurationException e) {
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87 log.error(e,e);
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88 } catch (SAXException e) {
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89 log.error(e,e);
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90 } catch (IOException e) {
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91 log.error(e,e);
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92 }
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93 return returnValue;
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94 }
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95
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96 public Document reInitDocument(Document document){
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97
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98 StringBufferInputStream inputStream = new StringBufferInputStream(this.writeDocument2String(document));
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99 return this.readDocument(inputStream);
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100 }
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101
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102 public Element createXFormElement(Document document, String name) {
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103 Element node = document.createElementNS(XFORM_URL, name);
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104 node.setPrefix(XFORM_PREFIX);
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105 return node;
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106 }
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107
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108
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109 }
http://dive4elements.wald.intevation.org