Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/SQKMChartServiceImpl.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 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>
parents:
diff changeset
2
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
3 import org.apache.log4j.Logger;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
4
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
5 import java.io.IOException;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
6 import java.io.InputStream;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
7 import java.io.OutputStream;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
8
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
9 import javax.servlet.http.HttpServlet;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
10 import javax.servlet.http.HttpServletRequest;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
11 import javax.servlet.http.HttpServletResponse;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
12
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
13 import org.w3c.dom.Document;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
14 import org.w3c.dom.Element;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
15 import org.w3c.dom.NodeList;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
16
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
17 import de.intevation.artifacts.common.utils.XMLUtils;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
18
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
19 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
20 import de.intevation.artifacts.httpclient.http.HttpClient;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
21 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
22
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
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>
parents:
diff changeset
24
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
25 public class SQKMChartServiceImpl
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
26 extends HttpServlet
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
27 {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
28 private static final Logger log =
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
29 Logger.getLogger(FixingsKMChartServiceImpl.class);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
30
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
31 public static final String SERVICE_NAME = "sq-km-chart";
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
32
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
33 public SQKMChartServiceImpl() {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
34 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
35
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
36 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
37
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
38 log.info("SQKMChartServiceImpl.doGet");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
39
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
40 String url = getServletContext().getInitParameter("server-url");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
41 String locale = req.getParameter("locale");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
42 String filter = req.getParameter("filter");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
43
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
44 if (filter == null || filter.length() == 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
45 log.warn("Missing 'filter' parameter.");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
46 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
47 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
48
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
49 if (locale == null || locale.length() == 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
50 locale = "de";
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
51 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
52
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
53 Document filterDoc = XMLUtils.jsonToXML(filter);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
54
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
55 if (filterDoc == null) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
56 log.warn("Creating filter document failed.");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
57 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
58 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
59
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
60 InputStream in;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
61
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
62 try {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
63 HttpClient client = new HttpClientImpl(url, locale);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
64 in = (InputStream)client.callService(
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
65 url, // XXX: Why? The URL is passed by construction already.
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
66 SERVICE_NAME,
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
67 filterDoc,
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
68 new StreamResponseHandler());
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
69 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
70 catch (ConnectionException ce) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
71 log.error(ce);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
72 return;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
73 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
74
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
75 resp.setHeader("Content-Type", guessMIMEType(filterDoc));
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
76
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
77 try {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
78 OutputStream out = resp.getOutputStream();
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
79
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
80 byte [] buf = new byte[4096];
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
81 int i = -1;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
82 while ((i = in.read(buf)) >= 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
83 out.write(buf, 0, i);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
84 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
85 out.flush();
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
86 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
87 catch (IOException ioe) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
88 log.error(ioe);
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
89 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
90 finally {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
91 try { in.close(); }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
92 catch (IOException ioe) { /* ignored */ }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
93 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
94 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
95
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
96 protected static String guessMIMEType(Document document) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
97
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
98 NodeList formats = document.getElementsByTagName("format");
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
99
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
100 String format = "png";
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
101
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
102 if (formats.getLength() > 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
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:
diff changeset
104 if (type.length() > 0) {
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
105 format = type;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
106 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
107 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
108
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
109 return "image/" + format;
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
110 }
75e9eab05ee4 Added overview chart to sq relation period input panel.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
diff changeset
111 }
http://dive4elements.wald.intevation.org