Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/FixingsKMChartServiceImpl.java @ 4740:fb135e1dfa35

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given the result of the XPATH expression is interpreted as this type. Valid values are 'number', 'bool', 'node' and 'nodeset'. All other defaults to 'string' which also is the default if nor type is given.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 02 Jan 2013 15:31:53 +0100
parents 51ed89b754ae
children
rev   line source
2488
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.client.server;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import de.intevation.artifacts.common.utils.XMLUtils;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 import de.intevation.artifacts.httpclient.http.HttpClient;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 import de.intevation.artifacts.httpclient.http.response.StreamResponseHandler;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12 import java.io.IOException;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13 import java.io.InputStream;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 import java.io.OutputStream;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 import javax.servlet.http.HttpServlet;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 import javax.servlet.http.HttpServletRequest;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18 import javax.servlet.http.HttpServletResponse;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 import org.apache.log4j.Logger;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 import org.w3c.dom.Document;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 import org.w3c.dom.Element;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 import org.w3c.dom.NodeList;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 public class FixingsKMChartServiceImpl
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 extends HttpServlet
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 private static final Logger log =
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30 Logger.getLogger(FixingsKMChartServiceImpl.class);
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 public static final String SERVICE_NAME = "fixings-km-chart";
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34 public FixingsKMChartServiceImpl() {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
35 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
36
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39 log.info("FixingsKMChartServiceImpl.doGet");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 String url = getServletContext().getInitParameter("server-url");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
42 String locale = req.getParameter("locale");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 String filter = req.getParameter("filter");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 if (filter == null || filter.length() == 0) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 log.warn("Missing 'filter' parameter.");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 return;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 if (locale == null || locale.length() == 0) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51 locale = "de";
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54 Document filterDoc = XMLUtils.jsonToXML(filter);
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 if (filterDoc == null) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 log.warn("Creating filter document failed.");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58 return;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61 InputStream in;
2905
51ed89b754ae FLYS client: Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2493
diff changeset
62
2488
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63 try {
2493
f905c936ffff Added the XSL transformation to generate the fixings overview.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2488
diff changeset
64 HttpClient client = new HttpClientImpl(url, locale);
2488
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65 in = (InputStream)client.callService(
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66 url, // XXX: Why? The URL is passed by construction already.
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
67 SERVICE_NAME,
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
68 filterDoc,
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
69 new StreamResponseHandler());
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
70 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
71 catch (ConnectionException ce) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
72 log.error(ce);
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73 return;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75
2493
f905c936ffff Added the XSL transformation to generate the fixings overview.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2488
diff changeset
76 resp.setHeader("Content-Type", guessMIMEType(filterDoc));
f905c936ffff Added the XSL transformation to generate the fixings overview.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2488
diff changeset
77
2488
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
78 try {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
79 OutputStream out = resp.getOutputStream();
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
80
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
81 byte [] buf = new byte[4096];
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82 int i = -1;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83 while ((i = in.read(buf)) >= 0) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84 out.write(buf, 0, i);
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
85 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86 out.flush();
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 catch (IOException ioe) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 log.error(ioe);
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
91 finally {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
92 try { in.close(); }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
93 catch (IOException ioe) { /* ignored */ }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
94 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
95 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
96
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
97 protected static String guessMIMEType(Document document) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
98
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
99 NodeList formats = document.getElementsByTagName("format");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
100
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
101 String format = "png";
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
102
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
103 if (formats.getLength() > 0) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
104 String type = ((Element)formats.item(0)).getAttribute("type");
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
105 if (type.length() > 0) {
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
106 format = type;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
107 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
108 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
109
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
110 return "image/" + format;
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
111 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
112 }
88d44cae592e Added new proxy servlet to bridge the fixing km chart requests to the artefact server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
113 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org