Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/SQKMChartServiceImpl.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents 75e9eab05ee4
children
rev   line source
2953
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.client.server;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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2
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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3 import org.apache.log4j.Logger;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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4
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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5 import java.io.IOException;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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6 import java.io.InputStream;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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7 import java.io.OutputStream;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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8
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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9 import javax.servlet.http.HttpServlet;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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10 import javax.servlet.http.HttpServletRequest;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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11 import javax.servlet.http.HttpServletResponse;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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12
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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13 import org.w3c.dom.Document;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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14 import org.w3c.dom.Element;
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15 import org.w3c.dom.NodeList;
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16
75e9eab05ee4 Added overview chart to sq relation period input panel.
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17 import de.intevation.artifacts.common.utils.XMLUtils;
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18
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Raimund Renkert <raimund.renkert@intevation.de>
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19 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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20 import de.intevation.artifacts.httpclient.http.HttpClient;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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21 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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22
75e9eab05ee4 Added overview chart to sq relation period input panel.
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23 import de.intevation.artifacts.httpclient.http.response.StreamResponseHandler;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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24
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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25 public class SQKMChartServiceImpl
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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26 extends HttpServlet
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Raimund Renkert <raimund.renkert@intevation.de>
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27 {
75e9eab05ee4 Added overview chart to sq relation period input panel.
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28 private static final Logger log =
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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29 Logger.getLogger(FixingsKMChartServiceImpl.class);
75e9eab05ee4 Added overview chart to sq relation period input panel.
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30
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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31 public static final String SERVICE_NAME = "sq-km-chart";
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32
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Raimund Renkert <raimund.renkert@intevation.de>
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33 public SQKMChartServiceImpl() {
75e9eab05ee4 Added overview chart to sq relation period input panel.
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34 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
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35
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Raimund Renkert <raimund.renkert@intevation.de>
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36 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
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37
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Raimund Renkert <raimund.renkert@intevation.de>
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38 log.info("SQKMChartServiceImpl.doGet");
75e9eab05ee4 Added overview chart to sq relation period input panel.
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39
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Raimund Renkert <raimund.renkert@intevation.de>
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40 String url = getServletContext().getInitParameter("server-url");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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41 String locale = req.getParameter("locale");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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42 String filter = req.getParameter("filter");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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43
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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44 if (filter == null || filter.length() == 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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45 log.warn("Missing 'filter' parameter.");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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46 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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47 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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48
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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49 if (locale == null || locale.length() == 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
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50 locale = "de";
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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51 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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52
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Raimund Renkert <raimund.renkert@intevation.de>
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53 Document filterDoc = XMLUtils.jsonToXML(filter);
75e9eab05ee4 Added overview chart to sq relation period input panel.
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54
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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55 if (filterDoc == null) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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56 log.warn("Creating filter document failed.");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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57 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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58 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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59
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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60 InputStream in;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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61
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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62 try {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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63 HttpClient client = new HttpClientImpl(url, locale);
75e9eab05ee4 Added overview chart to sq relation period input panel.
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64 in = (InputStream)client.callService(
75e9eab05ee4 Added overview chart to sq relation period input panel.
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65 url, // XXX: Why? The URL is passed by construction already.
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66 SERVICE_NAME,
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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67 filterDoc,
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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68 new StreamResponseHandler());
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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69 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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70 catch (ConnectionException ce) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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71 log.error(ce);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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72 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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73 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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74
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Raimund Renkert <raimund.renkert@intevation.de>
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75 resp.setHeader("Content-Type", guessMIMEType(filterDoc));
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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76
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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77 try {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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78 OutputStream out = resp.getOutputStream();
75e9eab05ee4 Added overview chart to sq relation period input panel.
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79
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Raimund Renkert <raimund.renkert@intevation.de>
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80 byte [] buf = new byte[4096];
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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81 int i = -1;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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82 while ((i = in.read(buf)) >= 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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83 out.write(buf, 0, i);
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Raimund Renkert <raimund.renkert@intevation.de>
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84 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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85 out.flush();
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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86 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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87 catch (IOException ioe) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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88 log.error(ioe);
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Raimund Renkert <raimund.renkert@intevation.de>
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89 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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90 finally {
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Raimund Renkert <raimund.renkert@intevation.de>
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91 try { in.close(); }
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92 catch (IOException ioe) { /* ignored */ }
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93 }
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Raimund Renkert <raimund.renkert@intevation.de>
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94 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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95
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Raimund Renkert <raimund.renkert@intevation.de>
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96 protected static String guessMIMEType(Document document) {
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Raimund Renkert <raimund.renkert@intevation.de>
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97
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Raimund Renkert <raimund.renkert@intevation.de>
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98 NodeList formats = document.getElementsByTagName("format");
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99
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Raimund Renkert <raimund.renkert@intevation.de>
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100 String format = "png";
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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101
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Raimund Renkert <raimund.renkert@intevation.de>
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102 if (formats.getLength() > 0) {
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103 String type = ((Element)formats.item(0)).getAttribute("type");
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Raimund Renkert <raimund.renkert@intevation.de>
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104 if (type.length() > 0) {
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Raimund Renkert <raimund.renkert@intevation.de>
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105 format = type;
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Raimund Renkert <raimund.renkert@intevation.de>
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106 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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107 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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108
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Raimund Renkert <raimund.renkert@intevation.de>
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109 return "image/" + format;
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Raimund Renkert <raimund.renkert@intevation.de>
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110 }
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Raimund Renkert <raimund.renkert@intevation.de>
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111 }
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