Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/SQKMChartServiceImpl.java @ 4173:7d4480c0e68e

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Allow users to select the current relevant discharge table in historical discharge table calculattion. In addition to this, the discharge tables in the helper panel displayed in the client is ordered in time.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 18 Oct 2012 12:13:48 +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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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14 import org.w3c.dom.Element;
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Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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27 {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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37
75e9eab05ee4 Added overview chart to sq relation period input panel.
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.
Raimund Renkert <raimund.renkert@intevation.de>
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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>
parents:
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49 if (locale == null || locale.length() == 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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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
75e9eab05ee4 Added overview chart to sq relation period input panel.
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.
Raimund Renkert <raimund.renkert@intevation.de>
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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65 url, // XXX: Why? The URL is passed by construction already.
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Raimund Renkert <raimund.renkert@intevation.de>
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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>
parents:
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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
75e9eab05ee4 Added overview chart to sq relation period input panel.
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>
parents:
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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.
Raimund Renkert <raimund.renkert@intevation.de>
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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>
parents:
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88 log.error(ioe);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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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(); }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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92 catch (IOException ioe) { /* ignored */ }
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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93 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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94 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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95
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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96 protected static String guessMIMEType(Document document) {
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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97
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Raimund Renkert <raimund.renkert@intevation.de>
parents:
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98 NodeList formats = document.getElementsByTagName("format");
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99
75e9eab05ee4 Added overview chart to sq relation period input panel.
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>
parents:
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101
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Raimund Renkert <raimund.renkert@intevation.de>
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102 if (formats.getLength() > 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
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103 String type = ((Element)formats.item(0)).getAttribute("type");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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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;
75e9eab05ee4 Added overview chart to sq relation period input panel.
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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