Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/DischargeInfoXML.java @ 4269:0c766c475805

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Add Panel and Tree UI classes for dispayling the measurement station info The new ui classes are using the new extracted base class InfoPanel and InfoTree which are in common with the gauge info.
author Björn Ricks <bjoern.ricks@intevation.de>
date Fri, 26 Oct 2012 12:22:06 +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