Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/Notification.java @ 4641:f3325079dacc

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Improve the up and down arrows in the theme navigation panel Don't stretch the arrow icons and fit to their actual size. Also put the up buttons on the left and the down buttons on the right.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 04 Dec 2012 16:16:43 +0100
parents 06891562e633
children f939e1e6cfa4
rev   line source
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.aft;
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2
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3 import de.intevation.utils.XML;
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4
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5 import java.io.IOException;
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6 import java.io.InputStream;
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7 import java.io.OutputStream;
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8
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9 import java.net.URL;
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10 import java.net.URLConnection;
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11 import java.net.HttpURLConnection;
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12
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13 import org.w3c.dom.Document;
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14 import org.w3c.dom.Node;
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15 import org.w3c.dom.NodeList;
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16
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17 import org.apache.log4j.Logger;
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18
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19 public class Notification
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20 {
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21 private static Logger log = Logger.getLogger(Notification.class);
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22
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23 protected Document message;
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24
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25 public Notification() {
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26 }
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27
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28 public Notification(Document message) {
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29 this.message = message;
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30 }
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31
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32 public Notification(Node message) {
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33 this(wrap(message));
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34 }
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35
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36 public static Document wrap(Node node) {
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37 Document document = XML.newDocument();
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38
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39 // Send first element as message.
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40 // Fall back to root node.
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41 Node toImport = node;
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42
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43 NodeList children = node.getChildNodes();
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44 for (int i = 0, N = children.getLength(); i < N; ++i) {
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45 Node child = children.item(i);
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46 if (child.getNodeType() == Node.ELEMENT_NODE) {
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47 toImport = child;
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48 break;
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49 }
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50 }
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51
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52 toImport = document.importNode(toImport, true);
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53 document.appendChild(toImport);
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54 document.normalizeDocument();
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55 return document;
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56 }
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57
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58 public Document sendPOST(URL url) {
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59
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60 OutputStream out = null;
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61 InputStream in = null;
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62 Document result = null;
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63
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64 try {
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65 URLConnection ucon = url.openConnection();
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66
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67 if (!(ucon instanceof HttpURLConnection)) {
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68 log.warn("NOTIFY: '" + url + "' is not an HTTP(S) connection.");
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69 return null;
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70 }
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71
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72 HttpURLConnection con = (HttpURLConnection)ucon;
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73
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74 con.setRequestMethod("POST");
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75 con.setDoInput(true);
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76 con.setDoOutput(true);
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77 con.setUseCaches(false);
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78 con.setRequestProperty("Content-Type", "text/xml");
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79
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80 out = con.getOutputStream();
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81 XML.toStream(message, out);
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82 out.flush();
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83 in = con.getInputStream();
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84 result = XML.parseDocument(in);
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85 }
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86 catch (IOException ioe) {
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87 log.error("NOTIFY: Sending message to '" + url + "' failed.", ioe);
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88 }
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89 finally {
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90 if (out != null) {
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91 try { out.close(); } catch (IOException ioe) {}
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92 }
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93 if (in != null) {
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94 try { in.close(); } catch (IOException ioe) {}
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95 }
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96 }
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97
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98 return result;
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99 }
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100 }
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101 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org