Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FileUploadService.java @ 5379:61bf64b102bc mapgenfix

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Merge with default branch
author Christian Lins <christian.lins@intevation.de>
date Fri, 22 Mar 2013 11:25:54 +0100
parents a9243df307b1
children
rev   line source
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1 package de.intevation.flys.artifacts.services;
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2
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3 import de.intevation.artifacts.CallMeta;
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4 import de.intevation.artifacts.GlobalContext;
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5 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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6 import de.intevation.artifacts.common.utils.FileTools;
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7 import de.intevation.artifacts.common.utils.XMLUtils;
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8 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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9 import de.intevation.flys.mapserver.ArtifactMapfileGenerator;
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10 import de.intevation.flys.utils.FLYSUtils;
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11 import de.intevation.flys.utils.FileUtils;
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12
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13 import java.io.File;
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14 import java.io.FileOutputStream;
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15 import java.io.IOException;
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16
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17 import org.apache.commons.codec.binary.Base64;
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18 import org.apache.log4j.Logger;
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19 import org.w3c.dom.Document;
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20 import org.w3c.dom.Element;
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21
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22 /**
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23 * Service that receives XML-packed Shapefile bundles from the client.
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24 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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25 */
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26 public class FileUploadService extends FLYSService {
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27
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28 /** The logger used in this service.*/
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29 private static Logger logger = Logger.getLogger(FileUploadService.class);
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30
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31 /** XPath that points to the artifact uuid.*/
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32 public static final String XPATH_ARTIFACT_UUID =
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33 "/upload/artifact-uuid/text()";
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34
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35 /** XPath that points to the base64 encoded data.*/
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36 public static final String XPATH_DATA = "/upload/data/text()";
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37
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38 public FileUploadService() {
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39 }
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40
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41 @Override
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42 protected Document doProcess(
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43 Document data,
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44 GlobalContext context,
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45 CallMeta callMeta
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46 ) {
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47 logger.debug("FileUploadService.process");
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48
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49 Document doc = XMLUtils.newDocument();
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50 ElementCreator ec = new ElementCreator(doc, null, null);
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51 Element resp = ec.create("response");
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52 Element status = ec.create("status");
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53 resp.appendChild(status);
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54 doc.appendChild(resp);
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55
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56 String uuid = extractUuid(data);
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57
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58 byte[] fileData = extractData(data);
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59 if (fileData != null) {
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60 try {
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61 String shapePath = FLYSUtils.getXPathString(
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62 FLYSUtils.XPATH_FLOODMAP_SHAPEFILE_DIR);
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63
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64 File artifactDir = FileTools.getDirectory(shapePath, uuid);
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65 File archive = new File(artifactDir, "user-rgd.zip");
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66 FileOutputStream fos = new FileOutputStream(archive);
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67 try {
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68 fos.write(fileData);
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69
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70 // Write operation successful
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71 status.setTextContent("Upload erfolgreich!"); // TODO: i18n
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72
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73 FileUtils.extractZipfile(archive, artifactDir);
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74 ArtifactMapfileGenerator amfg = new ArtifactMapfileGenerator();
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75 amfg.generate();
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76 }
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77 finally {
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78 fos.close();
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79 }
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80 }
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81 catch (IOException ioe) {
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82 logger.warn(ioe, ioe);
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83 status.setTextContent("Upload fehlgeschlagen!");
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84 }
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85 }
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86 else {
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87 logger.debug("No data in uploaded xml.");
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88 status.setTextContent("Upload fehlgeschlagen!");
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89 }
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90
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91 return doc;
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92 }
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93
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94 /**
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95 * Extracts the UUID from the XML document.
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96 * @param data
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97 * @return
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98 */
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99 protected String extractUuid(Document data) {
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100 return XMLUtils.xpathString(
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101 data, XPATH_ARTIFACT_UUID, ArtifactNamespaceContext.INSTANCE);
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102 }
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103
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104 /**
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105 * Extracts the base64 encoded ZIP file from the XML document.
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106 * @param data
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107 * @return
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108 */
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109 protected byte[] extractData(Document data) {
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110 String b64Data = XMLUtils.xpathString(
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111 data, XPATH_DATA, ArtifactNamespaceContext.INSTANCE);
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112
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113 if (b64Data != null && b64Data.length() > 0) {
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114 byte[] fileData = Base64.decodeBase64(b64Data);
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115 return fileData;
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116 }
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117 return null;
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118 }
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119 }
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120 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org