Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/DischargeInfoXML.java @ 4253:a1bc5b8cff0f

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Refactor GaugePanel to create it's own SectionStackSection The GaugePanel constructor now creates a SectionStackSection instead of using a provided one. Improve the rendering of the GaugePanel by having access to the SmartGWT wrapper (WidgetCanvas) object for the GWT Tree (GaugeTree) directly. Add methods to close and open the section. Also add a getter for the section.
author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 25 Oct 2012 13:52:58 +0200
parents 67468c90ca68
children
rev   line source
1600
67468c90ca68 Added service to request discharge infos at a specific gauge.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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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 org.apache.log4j.Logger;
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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.ArtifactNamespaceContext;
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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.exceptions.ConnectionException;
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20 import de.intevation.artifacts.httpclient.http.HttpClient;
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21 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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22 import de.intevation.artifacts.httpclient.http.response.StreamResponseHandler;
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23
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24
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25 /**
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26 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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27 */
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28 public class DischargeInfoXML
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29 extends HttpServlet
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30 {
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31 private static final Logger logger = Logger.getLogger(DischargeInfoXML.class);
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32
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33
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34 public static final String ERROR_NO_DISTANCEINFO_FOUND =
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35 "error_no_dischargeinfo_found";
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36
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37
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38 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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39 logger.info("DischargeInfoXML.doGet");
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40
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41 String url = getServletContext().getInitParameter("server-url");
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42
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43 String gauge = req.getParameter("gauge");
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44
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45 Document doc = XMLUtils.newDocument();
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46
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47 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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48 doc,
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49 ArtifactNamespaceContext.NAMESPACE_URI,
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50 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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51
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52 Element gaugeEl = ec.create("gauge");
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53 gaugeEl.setTextContent(gauge);
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54
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55 doc.appendChild(gaugeEl);
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56
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57 HttpClient client = new HttpClientImpl(url);
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58
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59 try {
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60 InputStream in = (InputStream) client.callService(
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61 url, "dischargeinfo", doc, new StreamResponseHandler());
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62
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63 OutputStream out = resp.getOutputStream();
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64
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65 byte[] b = new byte[4096];
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66 int i;
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67 while ((i = in.read(b)) >= 0) {
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68 out.write(b, 0, i);
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69 }
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70
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71 out.flush();
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72 out.close();
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73 }
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74 catch (ConnectionException ce) {
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75 logger.error(ce, ce);
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76 }
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77 catch (IOException ioe) {
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78 logger.error(ioe, ioe);
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79 }
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80 }
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81 }
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82 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org