comparison artifacts/src/main/java/org/dive4elements/river/artifacts/common/MetaAndTableJRDataSource.java @ 9005:460fcc128794

jasper multiple
author gernotbelger
date Tue, 17 Apr 2018 13:19:56 +0200
parents artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/util/MetaAndTableJRDataSource.java@5d5d482da3e9
children e6b63b2b41b9
comparison
equal deleted inserted replaced
9004:4635872e7117 9005:460fcc128794
1 /* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
2 * Software engineering by
3 * Björnsen Beratende Ingenieure GmbH
4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
5 *
6 * This file is Free Software under the GNU AGPL (>=v3)
7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
8 * documentation coming with Dive4Elements River for details.
9 */
10 package org.dive4elements.river.artifacts.common;
11
12 import java.util.ArrayList;
13 import java.util.HashMap;
14 import java.util.List;
15 import java.util.Map;
16
17 import net.sf.jasperreports.engine.JRDataSource;
18 import net.sf.jasperreports.engine.JRException;
19 import net.sf.jasperreports.engine.JRField;
20
21 /**
22 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
23 */
24 public final class MetaAndTableJRDataSource implements JRDataSource {
25
26 private final List<String[]> data = new ArrayList<>();
27
28 private final Map<String, String> metaData = new HashMap<>();
29
30 private int index = -1;
31
32 public void addData(final String[] row) {
33 this.data.add(row);
34 }
35
36 public void addMetaData(final String key, final String value) {
37 this.metaData.put(key, value);
38 }
39
40 @Override
41 public boolean next() throws JRException {
42 this.index++;
43
44 return this.index < this.data.size();
45 }
46
47 @Override
48 public Object getFieldValue(final JRField field) throws JRException {
49 final String fieldName = field.getName();
50
51 if (fieldName.startsWith("meta:"))
52 return this.metaData.get(fieldName.substring("meta:".length()));
53
54 if (fieldName.startsWith("data:")) {
55 final int column = Integer.valueOf(fieldName.substring("data:".length()));
56 return this.data.get(this.index)[column];
57 }
58 return null;
59 }
60
61 public JRDataSource withPagePageOffsets(final int startpageoffset, final int totalpagesoffset) {
62
63 final MetaAndTableJRDataSource newSource = new MetaAndTableJRDataSource();
64 newSource.data.addAll(this.data);
65 newSource.metaData.putAll(this.metaData);
66
67 newSource.addMetaData("meta:startpageoffset", "" + startpageoffset);
68 newSource.addMetaData("meta:totalpagesoffset", "" + totalpagesoffset);
69
70 return newSource;
71 }
72 }

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