Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/server/CSVExportServiceImpl.java @ 8203:238fc722f87a

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sed 's/logger/log/g' src/**/*.java
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 05 Sep 2014 13:19:22 +0200
parents e25ef8376c14
children 13a0c4be17ea 0a5239a1e46e
rev   line source
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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 log =
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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 log.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 log.error(ce.getLocalizedMessage());
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99 }
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100
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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 :
http://dive4elements.wald.intevation.org