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1
32
33 package it.businesslogic.ireport.connection;
34
35
36 import it.businesslogic.ireport.util.I18n;
37 import java.lang.reflect.InvocationTargetException  ;
38 import net.sf.jasperreports.engine.*;
39 import javax.swing.*;
40 import it.businesslogic.ireport.gui.MainFrame;
41
45 public class JRDataSourceProviderConnection extends it.businesslogic.ireport.IReportConnection {
46
47
48 private net.sf.jasperreports.engine.JRDataSourceProvider dsp;
49 private net.sf.jasperreports.engine.JRDataSource ds;
50 private java.util.HashMap properties = new java.util.HashMap ();
51
52 public net.sf.jasperreports.engine.JRDataSourceProvider getDataSourceProvider() {
53
54 if (dsp == null && this.getProperties().get("JRDataSourceProvider") != null)
55 {
56 try {
57 dsp = (JRDataSourceProvider)(Class.forName( (String )this.getProperties().get("JRDataSourceProvider"), true, it.businesslogic.ireport.gui.MainFrame.getMainInstance().getReportClassLoader()).newInstance());
58 } catch (NoClassDefFoundError ex)
59 {
60 showErrorMessage(
61 I18n.getString("messages.JRDataSourceProviderConnection.noClassDefFoundError",
62 "No class definition found error!!\nCheck your classpath!"),
63 I18n.getString("message.title.exception","Exception"));
64 }
65 catch (ClassNotFoundException ex)
66 {
67 showErrorMessage(
68 I18n.getString("messages.JRDataSourceProviderConnection.classNotFoundError",
69 "Class not found error!!\nCheck your classpath!"),
70 I18n.getString("message.title.exception","Exception"));
71 }
72 catch (Exception ex)
73 {
74 showErrorMessage("" + ex.getMessage(),
75 I18n.getString("message.title.exception","Exception"));
76 }
77 }
78
79 return dsp;
80 }
81
82 private void showErrorMessage(final String errorMsg, final String title)
83 {
84 Runnable r = new Runnable () {
85 public void run() {
86 JOptionPane.showMessageDialog(MainFrame.getMainInstance(),errorMsg,title,JOptionPane.ERROR_MESSAGE);
87 }
88 };
89
90 if (!SwingUtilities.isEventDispatchThread())
91 {
92 try {
93 SwingUtilities.invokeAndWait( r );
94 } catch (InvocationTargetException ex) {
95 ex.printStackTrace();
96 } catch (InterruptedException ex) {
97 ex.printStackTrace();
98 }
99 }
100 else
101 {
102 r.run();
103 }
104 }
105
106 public String getDescription(){ return "JasperReports DataSource Provider"; }
107
108
109 public JRDataSourceProviderConnection() {
110 }
111
112
116 public net.sf.jasperreports.engine.JRDataSource getJRDataSource() {
117
118 return getJRDataSource(null);
119 }
120
121 public net.sf.jasperreports.engine.JRDataSource getJRDataSource(JasperReport jasper) {
122
123 if (ds != null)
124 {
125 JOptionPane.showMessageDialog(MainFrame.getMainInstance(),I18n.getString("messages.JRDataSourceProviderConnection.datasourceInUse","This datasource is already in use by another filling process!!"),I18n.getString("message.title.error","Error"),JOptionPane.ERROR_MESSAGE);
126 return null;
127 }
128
129 try {
130 ds = getDataSourceProvider().create(jasper);
131 } catch (Exception ex)
132 {
133 JOptionPane.showMessageDialog(MainFrame.getMainInstance(),I18n.getFormattedString("messages.JRDataSourceProviderConnection.problemsCreatingDatasource","Problems occurred creating the new datasource!!\n{0}", new Object []{""+ex.getMessage()}),I18n.getString("message.title.error","Error"),JOptionPane.ERROR_MESSAGE);
134 }
135
136 return ds;
137 }
138
139 public void disposeDataSource()
140 {
141 if (dsp != null)
142 {
143 try {
144 dsp.dispose(ds);
145 } catch (Exception ex) {}
146 ds = null;
147 }
148 }
149
150 public java.util.HashMap getProperties()
151 {
152 return properties;
153 }
154
155
159 public void loadProperties(java.util.HashMap map)
160 {
161 properties = map;
162 }
163
164
167 public void save(java.io.PrintWriter pw)
168 {
169 java.util.HashMap hm = this.getProperties();
170 pw.println("\t<iReportConnection name=\""+ this.getName() +"\" connectionClass=\"" + this.getClass().getName() +"\">");
171 java.util.Iterator iterator = hm.keySet().iterator();
172
173 while (iterator.hasNext())
174 {
175 String key = (String )iterator.next();
176 pw.println("\t\t<connectionParameter name=\"" + key + "\"><![CDATA[" + hm.get(key) + "]]></connectionParameter>");
177 }
178 pw.println("\t</iReportConnection>");
179 }
180
181 }
182 |
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