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annotate software/mpdl-services/mpiwg-mpdl-cms/src/de/mpg/mpiwg/berlin/mpdl/cms/transform/XslResourceTransformer.java @ 23:e845310098ba

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author Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
date Tue, 27 Nov 2012 12:35:19 +0100
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23
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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1 package de.mpg.mpiwg.berlin.mpdl.cms.transform;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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2
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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3 import java.io.IOException;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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4 import java.io.StringReader;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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5 import java.io.StringWriter;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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6 import java.net.URL;
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7
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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8 import javax.xml.transform.stream.StreamSource;
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9
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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10 import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException;
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11
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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12 import net.sf.saxon.s9api.Processor;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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13 import net.sf.saxon.s9api.QName;
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14 import net.sf.saxon.s9api.SaxonApiException;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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15 import net.sf.saxon.s9api.Serializer;
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16 import net.sf.saxon.s9api.XdmValue;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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17 import net.sf.saxon.s9api.XsltCompiler;
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18 import net.sf.saxon.s9api.XsltExecutable;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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19 import net.sf.saxon.s9api.XsltTransformer;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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20
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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21 public class XslResourceTransformer {
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22 private Processor processor;
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23 private XsltCompiler xsltCompiler;
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24 private Serializer serializer;
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25 private XsltTransformer xsltTransformer;
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26
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27 public XslResourceTransformer(String resourceName) throws ApplicationException {
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28 init(resourceName);
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29 }
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30
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31 private void init(String resourceName) throws ApplicationException {
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32 try {
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33 processor = new Processor(false);
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34 xsltCompiler = processor.newXsltCompiler();
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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35 URL xslUrl = XslResourceTransformer.class.getResource(resourceName);
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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36 StreamSource xslStreamSource = new StreamSource(xslUrl.openStream());
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37 XsltExecutable xsltExecutable = xsltCompiler.compile(xslStreamSource);
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38 xsltTransformer = xsltExecutable.load();
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39 } catch (SaxonApiException e) {
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40 throw new ApplicationException(e);
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41 } catch (IOException e) {
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42 throw new ApplicationException(e);
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43 }
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44 }
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45
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46 public String transform(String xmlFileName) throws ApplicationException {
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47 String result = null;
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48 try {
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49 StreamSource xmlDoc = new StreamSource(xmlFileName);
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50 serializer = new Serializer();
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51 serializer.setOutputWriter(new StringWriter());
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52 xsltTransformer.setSource(xmlDoc); // needs some time for bigger documents
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53 xsltTransformer.setDestination(serializer);
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54 xsltTransformer.transform(); // needs some time for bigger documents
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55 result = serializer.getOutputDestination().toString();
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56 } catch (Exception e) {
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57 throw new ApplicationException(e);
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58 }
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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59 return result;
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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60 }
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61
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62 public String transformStr(String xmlStr) throws ApplicationException {
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Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de>
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63 String retStr = null;
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64 try {
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65 StringReader inputStrReader = new StringReader(xmlStr);
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66 StreamSource xmlDoc = new StreamSource(inputStrReader);
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67 serializer = new Serializer();
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68 serializer.setOutputWriter(new StringWriter());
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69 xsltTransformer.setSource(xmlDoc); // needs some time for bigger documents
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70 xsltTransformer.setDestination(serializer);
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71 xsltTransformer.transform(); // needs some time for bigger documents
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72 retStr = serializer.getOutputDestination().toString();
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73 } catch (Exception e) {
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74 throw new ApplicationException(e);
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75 }
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76 return retStr;
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77 }
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78
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79 public void setParameter(QName name, XdmValue value) throws ApplicationException {
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80 try {
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81 xsltTransformer.setParameter(name, value);
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82 } catch (Exception e) {
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83 throw new ApplicationException(e);
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84 }
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85 }
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86
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87 public void setOutputProperty(Serializer.Property property, String value) throws ApplicationException {
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88 try {
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89 serializer.setOutputProperty(property, value);
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90 } catch (Exception e) {
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91 throw new ApplicationException(e);
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92 }
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93 }
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94 }