Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/CSVExportServiceImpl.java @ 6199:734ba3732bb6
CapabilitiesParse parses the "queryable" attribute of a WMSLayer now (#1253).
author | Christian Lins <christian.lins@intevation.de> |
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date | Wed, 05 Jun 2013 13:13:20 +0200 |
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children | e25ef8376c14 |
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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.client.server; |
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10 |
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11 import java.util.ArrayList; |
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12 import java.util.List; |
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13 |
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14 import java.io.Reader; |
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15 import java.io.InputStream; |
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16 import java.io.InputStreamReader; |
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17 import java.io.IOException; |
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18 |
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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 import org.apache.log4j.Logger; |
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23 |
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24 import com.google.gwt.user.server.rpc.RemoteServiceServlet; |
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25 |
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26 import au.com.bytecode.opencsv.CSVReader; |
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27 |
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28 import org.dive4elements.artifacts.common.ArtifactNamespaceContext; |
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29 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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30 |
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31 import org.dive4elements.artifacts.httpclient.http.HttpClient; |
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32 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl; |
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33 |
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34 import org.dive4elements.river.client.shared.exceptions.ServerException; |
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35 import org.dive4elements.river.client.client.services.CSVExportService; |
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36 |
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37 |
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38 /** |
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39 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> |
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40 */ |
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41 public class CSVExportServiceImpl |
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42 extends RemoteServiceServlet |
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43 implements CSVExportService |
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44 { |
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45 private static final Logger logger = |
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46 Logger.getLogger(CSVExportServiceImpl.class); |
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47 |
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48 |
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49 public static final String ERROR_NO_EXPORT_FOUND = |
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50 "error_no_export_found"; |
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51 |
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52 public List<String[]> getCSV( |
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53 String locale, |
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54 String uuid, |
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55 String name) |
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56 throws ServerException |
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57 { |
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58 logger.info("CSVExportServiceImpl.getCSV"); |
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59 |
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60 String url = getServletContext().getInitParameter("server-url"); |
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61 |
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62 Document requestDoc = XMLUtils.newDocument(); |
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63 |
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64 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( |
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65 requestDoc, |
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66 ArtifactNamespaceContext.NAMESPACE_URI, |
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67 ArtifactNamespaceContext.NAMESPACE_PREFIX); |
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68 |
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69 Element action = ec.create("action"); |
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70 ec.addAttr(action, "type", "csv", true); |
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71 ec.addAttr(action, "name", name, true); |
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72 |
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73 requestDoc.appendChild(action); |
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74 |
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75 HttpClient client = new HttpClientImpl(url, locale); |
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76 |
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77 try { |
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78 InputStream in = client.collectionOut(requestDoc, uuid, "export"); |
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79 Reader reader = new InputStreamReader (in, "UTF-8"); |
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80 CSVReader csvReader = new CSVReader (reader); |
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81 |
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82 List<String[]> lines = new ArrayList<String[]>(); |
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83 String[] line = null; |
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84 |
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85 while ((line = csvReader.readNext()) != null) { |
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86 if (line != null) { |
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87 if (!line[0].startsWith("#") && line.length > 0) { |
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88 if (line[0].replace("'", "").length() > 0) { |
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89 lines.add(line); |
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90 } |
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91 } |
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92 } |
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93 } |
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94 |
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95 return lines; |
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96 } |
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97 catch (IOException ce) { |
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98 logger.error(ce.getLocalizedMessage()); |
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99 } |
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101 throw new ServerException(ERROR_NO_EXPORT_FOUND); |
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102 } |
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103 } |
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104 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |