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1
24
25 package org.ofbiz.content.report;
26
27 import java.util.Collection  ;
28 import java.util.Iterator ;
29 import java.util.Map ;
30
31 import net.sf.jasperreports.engine.JRDataSource;
32 import net.sf.jasperreports.engine.JRException;
33 import net.sf.jasperreports.engine.JRField;
34
35
41 public class JRMapCollectionDataSource implements JRDataSource {
42
43 private Collection data = null;
44 private Iterator iterator = null;
45 private Map currentMap = null;
46
47 public JRMapCollectionDataSource(Collection mapCollection) {
48 this.data = mapCollection;
49
50 if (data != null) {
51 this.iterator = data.iterator();
52 }
53 }
54
55 public boolean next() throws JRException {
56 boolean hasNext = false;
57
58 if (this.iterator != null) {
59 hasNext = this.iterator.hasNext();
60
61 if (hasNext) {
62 try {
63 this.currentMap = (Map ) this.iterator.next();
64 } catch (Exception e) {
65 throw new JRException("Current collection object does not seem to be a Map.", e);
66 }
67 }
68 }
69
70 return hasNext;
71 }
72
73 public Object getFieldValue(JRField jrField) throws JRException {
74 Object value = null;
75
76 if (currentMap != null) {
77 value = currentMap.get(jrField.getName());
78 }
79
80 return value;
81 }
82
83 }
84 |
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