Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/utils/ArtifactXMLUtilities.java @ 73:504570de21fd

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Refactoring Work depending on Infrastructurchanges in the Artifact-Module gnv-artifacts/trunk@79 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Mon, 14 Sep 2009 10:32:38 +0000
parents e4ecf3188bdf
children 9345835e2bc1
rev   line source
71
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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.StringBufferInputStream;
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10 import java.io.StringWriter;
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11
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12 import javax.xml.parsers.DocumentBuilder;
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13 import javax.xml.parsers.DocumentBuilderFactory;
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14 import javax.xml.parsers.ParserConfigurationException;
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15 import javax.xml.transform.Transformer;
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16 import javax.xml.transform.TransformerConfigurationException;
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17 import javax.xml.transform.TransformerException;
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18 import javax.xml.transform.TransformerFactory;
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19 import javax.xml.transform.TransformerFactoryConfigurationError;
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20 import javax.xml.transform.dom.DOMSource;
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21 import javax.xml.transform.stream.StreamResult;
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22
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23 import org.apache.log4j.Logger;
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24 import org.w3c.dom.Document;
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25 import org.w3c.dom.Element;
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26 import org.xml.sax.SAXException;
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27
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28 import de.intevation.artifacts.ArtifactNamespaceContext;
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29 import de.intevation.gnv.transition.timeseries.TimeSeriesOutputTransition;
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30
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31 /**
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32 * @author Tim Englich <tim.englich@intevation.de>
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33 *
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34 */
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35 public class ArtifactXMLUtilities {
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36 /**
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37 * the logger, used to log exceptions and additonaly information
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38 */
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39 private static Logger log = Logger.getLogger(TimeSeriesOutputTransition.class);
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40
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41 /**
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42 * Constructor
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43 */
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44 public ArtifactXMLUtilities() {
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45 }
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46
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47 /**
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48 * @param document
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49 * @return
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50 */
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51 public Element createArtifactElement(Document document, String name) {
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52 Element node = document.createElementNS(ArtifactNamespaceContext.NAMESPACE_URI, name);
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53 node.setPrefix(ArtifactNamespaceContext.NAMESPACE_PREFIX);
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54 return node;
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55 }
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56
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57 public String writeDocument2String(Document document){
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58 try {
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59 TransformerFactory transformerFactory = TransformerFactory.newInstance();
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60 Transformer transformer = transformerFactory.newTransformer();
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61 DOMSource source = new DOMSource(document);
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62 StringWriter sw = new StringWriter();
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63 StreamResult result = new StreamResult(sw);
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64 transformer.transform(source, result);
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65 return sw.getBuffer().toString();
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66 } catch (TransformerConfigurationException e) {
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67 log.error(e,e);
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68 } catch (TransformerFactoryConfigurationError e) {
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69 log.error(e,e);
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70 } catch (TransformerException e) {
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71 log.error(e,e);
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72 }
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73 return null;
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74 }
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75
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76 public Document readDocument(InputStream inputStream){
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77 Document returnValue = null;
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78 try {
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79 DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
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80 DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
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81 returnValue = docBuilder.parse (inputStream);
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82 } catch (ParserConfigurationException e) {
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83 log.error(e,e);
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84 } catch (SAXException e) {
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85 log.error(e,e);
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86 } catch (IOException e) {
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87 log.error(e,e);
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88 }
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89 return returnValue;
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90 }
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91
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92 public Document reInitDocument(Document document){
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93
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94 StringBufferInputStream inputStream = new StringBufferInputStream(this.writeDocument2String(document));
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95 return this.readDocument(inputStream);
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96 }
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97
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98
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99
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100
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101 }
http://dive4elements.wald.intevation.org