Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/server/DischargeInfoXML.java @ 4012:9743bf17fce3
Reverted merge-victims in ChangeLog.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 02 Oct 2012 09:34:19 +0200 |
parents | 67468c90ca68 |
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rev | line source |
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1600
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Added service to request discharge infos at a specific gauge.
Raimund Renkert <raimund.renkert@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.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 : |