Mercurial > dive4elements > river

annotate flys-aft/src/main/java/de/intevation/aft/Notification.java @ 4706:e7b238247c4e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Documentation added.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 19 Dec 2012 11:38:48 +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>
parents:
diff changeset
1 package de.intevation.aft;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import de.intevation.utils.XML;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 import java.io.IOException;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 import java.io.InputStream;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 import java.io.OutputStream;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 import java.net.URL;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 import java.net.URLConnection;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 import java.net.HttpURLConnection;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 import org.w3c.dom.Document;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 import org.w3c.dom.Node;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15 import org.w3c.dom.NodeList;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 import org.apache.log4j.Logger;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 public class Notification
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 private static Logger log = Logger.getLogger(Notification.class);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 protected Document message;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25 public Notification() {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 public Notification(Document message) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 this.message = message;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 public Notification(Node message) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 this(wrap(message));
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36 public static Document wrap(Node node) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37 Document document = XML.newDocument();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39 // Send first element as message.
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40 // Fall back to root node.
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 Node toImport = node;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 NodeList children = node.getChildNodes();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 for (int i = 0, N = children.getLength(); i < N; ++i) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 Node child = children.item(i);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 if (child.getNodeType() == Node.ELEMENT_NODE) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 toImport = child;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 break;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 toImport = document.importNode(toImport, true);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53 document.appendChild(toImport);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54 document.normalizeDocument();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55 return document;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58 public Document sendPOST(URL url) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60 OutputStream out = null;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61 InputStream in = null;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
62 Document result = null;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
64 try {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65 URLConnection ucon = url.openConnection();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
67 if (!(ucon instanceof HttpURLConnection)) {
4110
06891562e633 Extracted and documented the error messages of the process.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4095
diff changeset
68 log.warn("NOTIFY: '" + url + "' is not an HTTP(S) connection.");
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
69 return null;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
70 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
71
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
72 HttpURLConnection con = (HttpURLConnection)ucon;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74 con.setRequestMethod("POST");
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75 con.setDoInput(true);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
76 con.setDoOutput(true);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
77 con.setUseCaches(false);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
78 con.setRequestProperty("Content-Type", "text/xml");
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
79
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
80 out = con.getOutputStream();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
81 XML.toStream(message, out);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82 out.flush();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83 in = con.getInputStream();
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84 result = XML.parseDocument(in);
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
85 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86 catch (IOException ioe) {
4110
06891562e633 Extracted and documented the error messages of the process.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4095
diff changeset
87 log.error("NOTIFY: Sending message to '" + url + "' failed.", ioe);
4095
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 finally {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 if (out != null) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
91 try { out.close(); } catch (IOException ioe) {}
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
92 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
93 if (in != null) {
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
94 try { in.close(); } catch (IOException ioe) {}
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
95 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
96 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
97
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
98 return result;
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
99 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
100 }
da9df3641578 Send XML messages via HTTP POST around if the FLYS database has changed.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
101 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org