Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/AbstractChartService.java @ 4523:504cd5801785

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added new column 'year' to sediment density values in postgresql and oracle schema.
author Raimund Renkert <rrenkert@intevation.de>
date Wed, 14 Nov 2012 17:19:54 +0100
parents 0674d89210f5
children 61f4d4164a30
rev   line source
4213
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.artifacts.services;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
2
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
3 import java.awt.Dimension;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
4 import java.awt.Transparency;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
5 import java.awt.image.BufferedImage;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
6 import java.io.ByteArrayOutputStream;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
7 import java.io.IOException;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
8
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
9 import javax.imageio.ImageIO;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
10
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
11 import org.apache.log4j.Logger;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
12 import org.jfree.chart.JFreeChart;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
13 import org.w3c.dom.Document;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
14 import org.w3c.dom.Element;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
15 import org.w3c.dom.NodeList;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
16
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
17 import de.intevation.artifactdatabase.DefaultService;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
18 import de.intevation.artifacts.CallMeta;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
19 import de.intevation.artifacts.GlobalContext;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
20 import de.intevation.artifacts.Service;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
21
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
22
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
23 public abstract class AbstractChartService extends DefaultService {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
24
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
25 public static final int DEFAULT_WIDTH = 240;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
26 public static final int DEFAULT_HEIGHT = 180;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
27
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
28 public static final String DEFAULT_FORMAT = "png";
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
29
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
30 private static final Logger log = Logger
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
31 .getLogger(AbstractChartService.class);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
32
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
33 // TODO: Load fancy image from resources.
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
34 public static final byte[] EMPTY = { (byte) 0x89, (byte) 0x50, (byte) 0x4e,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
35 (byte) 0x47, (byte) 0x0d, (byte) 0x0a, (byte) 0x1a, (byte) 0x0a,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
36 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x0d, (byte) 0x49,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
37 (byte) 0x48, (byte) 0x44, (byte) 0x52, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
38 (byte) 0x00, (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
39 (byte) 0x01, (byte) 0x08, (byte) 0x00, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
40 (byte) 0x00, (byte) 0x3a, (byte) 0x7e, (byte) 0x9b, (byte) 0x55,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
41 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x73,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
42 (byte) 0x52, (byte) 0x47, (byte) 0x42, (byte) 0x00, (byte) 0xae,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
43 (byte) 0xce, (byte) 0x1c, (byte) 0xe9, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
44 (byte) 0x00, (byte) 0x09, (byte) 0x70, (byte) 0x48, (byte) 0x59,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
45 (byte) 0x73, (byte) 0x00, (byte) 0x00, (byte) 0x0b, (byte) 0x13,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
46 (byte) 0x00, (byte) 0x00, (byte) 0x0b, (byte) 0x13, (byte) 0x01,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
47 (byte) 0x00, (byte) 0x9a, (byte) 0x9c, (byte) 0x18, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
48 (byte) 0x00, (byte) 0x00, (byte) 0x07, (byte) 0x74, (byte) 0x49,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
49 (byte) 0x4d, (byte) 0x45, (byte) 0x07, (byte) 0xdc, (byte) 0x04,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
50 (byte) 0x04, (byte) 0x10, (byte) 0x30, (byte) 0x15, (byte) 0x7d,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
51 (byte) 0x77, (byte) 0x36, (byte) 0x0b, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
52 (byte) 0x00, (byte) 0x08, (byte) 0x74, (byte) 0x45, (byte) 0x58,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
53 (byte) 0x74, (byte) 0x43, (byte) 0x6f, (byte) 0x6d, (byte) 0x6d,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
54 (byte) 0x65, (byte) 0x6e, (byte) 0x74, (byte) 0x00, (byte) 0xf6,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
55 (byte) 0xcc, (byte) 0x96, (byte) 0xbf, (byte) 0x00, (byte) 0x00,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
56 (byte) 0x00, (byte) 0x0a, (byte) 0x49, (byte) 0x44, (byte) 0x41,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
57 (byte) 0x54, (byte) 0x08, (byte) 0xd7, (byte) 0x63, (byte) 0xf8,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
58 (byte) 0x0f, (byte) 0x00, (byte) 0x01, (byte) 0x01, (byte) 0x01,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
59 (byte) 0x00, (byte) 0x1b, (byte) 0xb6, (byte) 0xee, (byte) 0x56,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
60 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x49,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
61 (byte) 0x45, (byte) 0x4e, (byte) 0x44, (byte) 0xae, (byte) 0x42,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
62 (byte) 0x60, (byte) 0x82 };
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
63
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
64 private static final Output empty() {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
65 return new Output(EMPTY, "image/png");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
66 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
67
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
68 protected abstract JFreeChart createChart(Document data,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
69 GlobalContext globalContext, CallMeta callMeta);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
70
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
71 protected void init() {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
72 };
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
73
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
74 protected void finish() {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
75 };
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
76
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
77 @Override
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
78 public Service.Output process(Document data, GlobalContext globalContext,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
79 CallMeta callMeta) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
80 log.debug("process");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
81
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
82 init();
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
83 try {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
84 JFreeChart chart = createChart(data, globalContext, callMeta);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
85
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
86 if (chart == null) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
87 return empty();
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
88 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
89
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
90 Dimension extent = getExtent(data);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
91 String format = getFormat(data);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
92
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
93 return encode(chart, extent, format);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
94 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
95 finally {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
96 finish();
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
97 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
98 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
99
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
100 protected static Output encode(JFreeChart chart, Dimension extent,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
101 String format) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
102 BufferedImage image = chart.createBufferedImage(extent.width,
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
103 extent.height, Transparency.BITMASK, null);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
104
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
105 ByteArrayOutputStream out = new ByteArrayOutputStream();
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
106
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
107 try {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
108 ImageIO.write(image, format, out);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
109 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
110 catch (IOException ioe) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
111 log.warn("writing image failed", ioe);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
112 return empty();
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
113 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
114
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
115 return new Output(out.toByteArray(), "image/" + format);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
116 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
117
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
118 protected static Dimension getExtent(Document input) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
119
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
120 int width = DEFAULT_WIDTH;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
121 int height = DEFAULT_HEIGHT;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
122
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
123 NodeList extents = input.getElementsByTagName("extent");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
124
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
125 if (extents.getLength() > 0) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
126 Element element = (Element) extents.item(0);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
127 String w = element.getAttribute("width");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
128 String h = element.getAttribute("height");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
129
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
130 try {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
131 width = Math.max(1, Integer.parseInt(w));
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
132 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
133 catch (NumberFormatException nfe) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
134 log.warn("width '" + w + "' is not a valid.");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
135 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
136
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
137 try {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
138 height = Math.max(1, Integer.parseInt(h));
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
139 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
140 catch (NumberFormatException nfe) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
141 log.warn("height '" + h + "' is not a valid");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
142 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
143 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
144
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
145 return new Dimension(width, height);
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
146 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
147
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
148 protected static String getFormat(Document input) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
149 String format = DEFAULT_FORMAT;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
150
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
151 NodeList formats = input.getElementsByTagName("format");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
152
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
153 if (formats.getLength() > 0) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
154 String type = ((Element) formats.item(0)).getAttribute("type");
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
155 if (type.length() > 0) {
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
156 format = type;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
157 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
158 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
159
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
160 return format;
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
161 }
0674d89210f5 Added a new service to query a diagram with discharge tables.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
162 }
http://dive4elements.wald.intevation.org