Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/DistanceInfoXML.java @ 828:910b03de6857

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Added a service to get some basic spatial information used for map creation. flys-client/trunk@2529 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 23 Aug 2011 09:43:12 +0000
parents 4a7ece57f44c
children ab8eb2f544f2
rev   line source
782
4a7ece57f44c #159 The tables in the WQ panel for calculation 4 are now filled with data.
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1 package de.intevation.flys.client.server;
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2
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3 import java.io.InputStream;
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4 import java.io.IOException;
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5 import java.io.OutputStream;
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6
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7 import org.w3c.dom.Document;
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8 import org.w3c.dom.Element;
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9
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10 import javax.servlet.http.HttpServlet;
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11 import javax.servlet.http.HttpServletRequest;
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12 import javax.servlet.http.HttpServletResponse;
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13
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14 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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15 import de.intevation.artifacts.common.utils.XMLUtils;
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16
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17 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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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 import de.intevation.artifacts.httpclient.http.response.StreamResponseHandler;
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22
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23 /**
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24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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25 */
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26 public class DistanceInfoXML
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27 extends HttpServlet
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28 {
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29 public static final String ERROR_NO_DISTANCEINFO_FOUND =
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30 "error_no_distanceinfo_found";
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32
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33 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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34 System.out.println("DistanceInfoXML.doGet");
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35
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36 String river = req.getParameter("river");
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37 String url = req.getParameter("server");
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38 String filter = req.getParameter("filter");
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39
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40 Document doc = XMLUtils.newDocument();
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41
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42 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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43 doc,
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44 ArtifactNamespaceContext.NAMESPACE_URI,
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45 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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46
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47 Element riverEl = ec.create("river");
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48 riverEl.setTextContent(river);
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49
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50 doc.appendChild(riverEl);
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51
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52 if (filter != null && filter.length() > 0) {
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53 Element typeEl = ec.create("filter");
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54 typeEl.setTextContent(filter);
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55
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56 riverEl.appendChild(typeEl);
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57 }
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58
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59 HttpClient client = new HttpClientImpl(url);
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60
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61 try {
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62 InputStream in = (InputStream) client.callService(
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63 url, "distanceinfo", doc, new StreamResponseHandler());
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64
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65 OutputStream out = resp.getOutputStream();
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66
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67 byte[] b = new byte[4096];
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68 int i;
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69 while ((i = in.read(b)) >= 0) {
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70 out.write(b, 0, i);
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71 }
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72
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73 out.flush();
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74 out.close();
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75 }
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76 catch (ConnectionException ce) {
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77 System.err.println(ce.getLocalizedMessage());
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78 }
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79 catch (IOException ioe) {
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80 System.err.println(ioe.getLocalizedMessage());
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81 }
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82 }
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83 }
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84 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org