Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/services/FileUploadService.java @ 5868:35b2d86c3fb5

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River artifacts: Renamed FLYSService to D4EService.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 15:26:59 +0200
parents 73da40528cf2
children af13ceeba52a
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.services;
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10
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11 import org.dive4elements.artifacts.CallMeta;
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12 import org.dive4elements.artifacts.GlobalContext;
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13 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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14 import org.dive4elements.artifacts.common.utils.FileTools;
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15 import org.dive4elements.artifacts.common.utils.XMLUtils;
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16 import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
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73da40528cf2 River artifacts: Renamed FLYSUtils to RiverUtils.
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17 import org.dive4elements.river.utils.RiverUtils;
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18
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19 import java.io.File;
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20 import java.io.FileOutputStream;
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21 import java.io.IOException;
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22
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23 import org.apache.commons.codec.binary.Base64;
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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
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28 /**
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29 * Service that receives XML-packed Shapefile bundles from the client.
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30 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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31 */
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32 public class FileUploadService extends D4EService {
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33
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34 /** The logger used in this service.*/
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35 private static Logger logger = Logger.getLogger(FileUploadService.class);
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36
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37 /** XPath that points to the artifact uuid.*/
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38 public static final String XPATH_ARTIFACT_UUID =
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39 "/upload/artifact-uuid/text()";
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40
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41 /** XPath that points to the base64 encoded data.*/
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42 public static final String XPATH_DATA = "/upload/data/text()";
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43
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44 public FileUploadService() {
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45 }
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46
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47 @Override
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48 protected Document doProcess(
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49 Document data,
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50 GlobalContext context,
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51 CallMeta callMeta
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52 ) {
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53 logger.debug("FileUploadService.process");
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54
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55 Document doc = XMLUtils.newDocument();
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56 ElementCreator ec = new ElementCreator(doc, null, null);
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57 Element resp = ec.create("response");
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58 Element status = ec.create("status");
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59 resp.appendChild(status);
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60 doc.appendChild(resp);
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61
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62 String uuid = extractUuid(data);
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63
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64 byte[] fileData = extractData(data);
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65 if (fileData != null) {
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66 try {
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67 String shapePath = RiverUtils.getXPathString(
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68 RiverUtils.XPATH_FLOODMAP_SHAPEFILE_DIR);
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69
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70 File artifactDir = FileTools.getDirectory(shapePath, uuid);
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71 FileOutputStream fos =
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72 new FileOutputStream(
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73 new File(artifactDir, "user-rgd.zip"));
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74 try {
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75 fos.write(fileData);
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76
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77 // Write operation successful
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78 status.setTextContent("Upload erfolgreich!"); // TODO: i18n
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79 }
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80 finally {
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81 fos.close();
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82 }
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83 }
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84 catch (IOException ioe) {
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85 logger.warn(ioe, ioe);
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86 status.setTextContent("Upload fehlgeschlagen!");
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87 }
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88 }
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89 else {
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90 logger.debug("No data in uploaded xml.");
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91 status.setTextContent("Upload fehlgeschlagen!");
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92 }
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93
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94 return doc;
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95 }
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96
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97 /**
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98 * Extracts the UUID from the XML document.
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99 * @param data
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100 * @return
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101 */
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102 protected String extractUuid(Document data) {
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103 return XMLUtils.xpathString(
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104 data, XPATH_ARTIFACT_UUID, ArtifactNamespaceContext.INSTANCE);
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105 }
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106
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107 /**
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108 * Extracts the base64 encoded ZIP file from the XML document.
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109 * @param data
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110 * @return
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111 */
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112 protected byte[] extractData(Document data) {
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113 String b64Data = XMLUtils.xpathString(
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114 data, XPATH_DATA, ArtifactNamespaceContext.INSTANCE);
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115
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116 if (b64Data != null && b64Data.length() > 0) {
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117 byte[] fileData = Base64.decodeBase64(b64Data);
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118 return fileData;
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119 }
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120 return null;
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121 }
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122 }
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123 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org