Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/util/XSLTransformer.java @ 396:8330c1dbab34

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Cleanup imports gnv/trunk@548 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 15 Jan 2010 20:22:38 +0000
parents 14eecfde4607
children 15ac78a91d1b
rev   line source
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3cb753564552 Integration of the required XSL-Transformation of the Describe-Response of the Artifactdatabase
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.util;
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5
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6 import java.io.ByteArrayOutputStream;
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7 import java.io.File;
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8 import java.io.UnsupportedEncodingException;
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9
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10 import java.util.HashMap;
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11 import java.util.Map;
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13 import javax.xml.transform.Source;
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14 import javax.xml.transform.Transformer;
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15 import javax.xml.transform.TransformerConfigurationException;
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16 import javax.xml.transform.TransformerException;
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17 import javax.xml.transform.TransformerFactory;
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18 import javax.xml.transform.TransformerFactoryConfigurationError;
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20 import javax.xml.transform.dom.DOMSource;
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22 import javax.xml.transform.stream.StreamResult;
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23 import javax.xml.transform.stream.StreamSource;
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24
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25 import org.apache.log4j.Logger;
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27 import org.w3c.dom.Node;
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28
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29 /**
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30 * @author Tim Englich <tim.englich@intevation.de>
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31 *
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32 */
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33 public class XSLTransformer {
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34 /**
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35 * the logger, used to log exceptions and additonaly information
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36 */
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37 private static Logger log = Logger.getLogger(XSLTransformer.class);
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40 private Map<String, String> params;
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42 /**
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43 * Constructor
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44 */
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45 public XSLTransformer() {
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46 super();
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47 }
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48
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49 public String transform(Node toTransform, String encoding,
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50 String templateFileName) {
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51 String resultValue = null;
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52 try {
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53 //XMLUtils xmlUtils = new XMLUtils();
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54 Source templateSource = new StreamSource(new File(templateFileName));
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55 TransformerFactory xformFactory = TransformerFactory.newInstance();
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56 Transformer transformer = xformFactory
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57 .newTransformer(templateSource);
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59 if (params != null) {
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60 for(Map.Entry<String, String> entry: params.entrySet()) {
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61 transformer.setParameter(entry.getKey(), entry.getValue());
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62 }
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63 }
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64
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65 ByteArrayOutputStream baos = new ByteArrayOutputStream();
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66 StreamResult scrResult = new StreamResult(baos);
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67 // log.debug(xmlUtils.writeNode2String(toTransform));
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68 DOMSource source = new DOMSource(toTransform);
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69 transformer.transform(source, scrResult);
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70 resultValue = new String(baos.toByteArray(), encoding);
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71 } catch (TransformerConfigurationException e) {
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72 log.error(e, e);
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73 } catch (UnsupportedEncodingException e) {
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74 log.error(e, e);
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75 } catch (TransformerFactoryConfigurationError e) {
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76 log.error(e, e);
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77 } catch (TransformerException e) {
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78 log.error(e, e);
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79 }
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80
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81 return resultValue;
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82 }
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83
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85 public void addParameter(String name, String value) {
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86 if (params == null) {
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87 params = new HashMap<String, String>(3);
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88 }
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90 params.put(name, value);
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91 }
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92 }
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