Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/ExportServiceImpl.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents 94b95e002fb9
children
rev   line source
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71a7533555d0 Added a service to export data from the artifact server.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.client.server;
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2
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3 import java.io.OutputStream;
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4 import java.io.IOException;
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5
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6 import org.w3c.dom.Document;
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7 import org.w3c.dom.Element;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import javax.servlet.http.HttpServlet;
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12 import javax.servlet.http.HttpServletRequest;
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13 import javax.servlet.http.HttpServletResponse;
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14
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15 import de.intevation.artifacts.common.utils.ClientProtocolUtils;
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16 import de.intevation.artifacts.common.utils.XMLUtils;
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17
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18 import de.intevation.artifacts.httpclient.http.HttpClient;
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19 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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20
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21
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22 /**
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23 * This service is used to request a data export from the artifact server. The
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24 * response is directed directly to the output stream, so that a file dialog is
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25 * opened.
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26 *
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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28 */
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29 public class ExportServiceImpl
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30 extends HttpServlet
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31 {
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32 private static final Logger logger =
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33 Logger.getLogger(ExportServiceImpl.class);
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34
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35
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36 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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37 logger.info("ExportServiceImpl.doGet");
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38
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39 try {
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40 OutputStream out = resp.getOutputStream();
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41
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42 String url = getServletContext().getInitParameter("server-url");
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43 String uuid = req.getParameter("uuid");
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44 String name = req.getParameter("name");
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45 String mode = req.getParameter("mode");
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46 String type = req.getParameter("type");
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47 String locale = req.getParameter("locale");
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48 String km = req.getParameter("km");
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49 String fn = name + "." + type;
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50
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51 resp.setHeader("Content-Disposition", "attachment;filename=" + fn);
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52
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53 if (logger.isDebugEnabled()) {
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54 logger.debug("Request " + type + " export.");
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55 }
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56
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57 Document attr = null;
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58 if (km != null && km.length() > 0) {
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59 attr = XMLUtils.newDocument();
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60 XMLUtils.ElementCreator ec =
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61 new XMLUtils.ElementCreator(attr, null, null);
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62 Element e = ec.create("km");
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63 e.setTextContent(km);
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64 attr.appendChild(e);
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65 }
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66 Document request = ClientProtocolUtils.newOutCollectionDocument(
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67 uuid, mode, type, attr);
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68 HttpClient client = new HttpClientImpl(url, locale);
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69 client.collectionOut(request, uuid, mode, out);
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70
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71 out.close();
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72 out.flush();
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73 }
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74 catch (IOException ioe) {
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75 logger.error(ioe, ioe);
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76 }
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77 }
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78 }
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79 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org