Mercurial > dive4elements > river

annotate flys-client/src/main/java/org/dive4elements/river/client/server/DistanceInfoXML.java @ 5835:821a02bbfb4e

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Fixed internal java dependencies
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 13:12:15 +0200
parents f507086aa94b
children
rev   line source
5835
821a02bbfb4e Fixed internal java dependencies
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5834
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1 package org.dive4elements.river.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 org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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17 import org.dive4elements.artifacts.common.utils.XMLUtils;
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18
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19 import org.dive4elements.artifacts.httpclient.exceptions.ConnectionException;
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20 import org.dive4elements.artifacts.httpclient.http.HttpClient;
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21 import org.dive4elements.artifacts.httpclient.http.HttpClientImpl;
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22 import org.dive4elements.artifacts.httpclient.http.response.StreamResponseHandler;
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25 /**
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26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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27 */
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28 public class DistanceInfoXML
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29 extends HttpServlet
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30 {
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31 private static final Logger logger = Logger.getLogger(DistanceInfoXML.class);
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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_distanceinfo_found";
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38 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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39 logger.info("DistanceInfoXML.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 river = req.getParameter("river");
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44 String filter = req.getParameter("filter");
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45
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46 Document doc = XMLUtils.newDocument();
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47
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48 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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49 doc,
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50 ArtifactNamespaceContext.NAMESPACE_URI,
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51 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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52
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53 Element riverEl = ec.create("river");
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54 riverEl.setTextContent(river);
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55
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56 doc.appendChild(riverEl);
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57
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58 if (filter != null && filter.length() > 0) {
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59 Element typeEl = ec.create("filter");
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60 typeEl.setTextContent(filter);
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61
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62 riverEl.appendChild(typeEl);
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63 }
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64
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65 HttpClient client = new HttpClientImpl(url);
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66
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67 try {
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68 InputStream in = (InputStream) client.callService(
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69 url, "distanceinfo", doc, new StreamResponseHandler());
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70
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71 OutputStream out = resp.getOutputStream();
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72
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73 byte[] b = new byte[4096];
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74 int i;
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75 while ((i = in.read(b)) >= 0) {
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76 out.write(b, 0, i);
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77 }
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78
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79 out.flush();
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80 out.close();
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81 }
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82 catch (ConnectionException ce) {
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83 logger.error(ce, ce);
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84 }
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85 catch (IOException ioe) {
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86 logger.error(ioe, ioe);
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87 }
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88 }
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89 }
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90 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org