Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/ExportServiceImpl.java @ 3499:17c66d38f095

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FixA: Added AT file export to FixAnalysis W/Q. flys-client/trunk@5223 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 17 Aug 2012 11:18:15 +0000
parents bc06a671ef60
children def13f23bb27
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 import org.json.XML;
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11
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12 import javax.servlet.http.HttpServlet;
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13 import javax.servlet.http.HttpServletRequest;
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14 import javax.servlet.http.HttpServletResponse;
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15
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16 import de.intevation.artifacts.common.utils.ClientProtocolUtils;
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17 import de.intevation.artifacts.common.utils.XMLUtils;
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18
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19 import de.intevation.artifacts.httpclient.http.HttpClient;
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20 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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21
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22
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23 /**
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24 * This service is used to request a data export from the artifact server. The
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25 * response is directed directly to the output stream, so that a file dialog is
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26 * opened.
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27 *
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28 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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29 */
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30 public class ExportServiceImpl
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31 extends HttpServlet
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32 {
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33 private static final Logger logger =
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34 Logger.getLogger(ExportServiceImpl.class);
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35
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36
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37 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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38 logger.info("ExportServiceImpl.doGet");
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39
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40 try {
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41 OutputStream out = resp.getOutputStream();
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42
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43 String url = getServletContext().getInitParameter("server-url");
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44
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45 String uuid = req.getParameter("uuid");
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46 String mode = req.getParameter("mode");
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47 String type = req.getParameter("type");
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48 String locale = req.getParameter("locale");
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49 String km = req.getParameter("km");
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50 String fn = mode + "." + type;
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51
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52 resp.setHeader("Content-Disposition", "attachment;filename=" + fn);
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53
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54 logger.debug("Request " + type + " export.");
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55
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56 Document attr = null;
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57 if (km != null && km.length() > 0) {
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58 attr = XMLUtils.newDocument();
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59 XMLUtils.ElementCreator ec =
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60 new XMLUtils.ElementCreator(attr, null, null);
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61 Element e = ec.create("km");
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62 e.setTextContent(km);
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63 attr.appendChild(e);
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64 }
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65 Document request = ClientProtocolUtils.newOutCollectionDocument(
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66 uuid, mode, type, attr);
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67 HttpClient client = new HttpClientImpl(url, locale);
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68 client.collectionOut(request, uuid, mode, out);
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69
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70 out.close();
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71 out.flush();
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72 }
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73 catch (IOException ioe) {
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74 logger.error(ioe, ioe);
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75 }
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org