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Java > Open Source Codes > com > jaspersoft > jasperserver > api > engine > jasperreports > service > impl > BaseJdbcDataSource


1 /*
2  * Copyright (C) 2006 JasperSoft http://www.jaspersoft.com
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed WITHOUT ANY WARRANTY; and without the
10  * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11  * See the GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, see http://www.gnu.org/licenses/gpl.txt
15  * or write to:
16  *
17  * Free Software Foundation, Inc.,
18  * 59 Temple Place - Suite 330,
19  * Boston, MA USA 02111-1307
20  */

21 package com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl;
22
23 import java.sql.Connection JavaDoc;
24 import java.sql.SQLException JavaDoc;
25 import java.util.Map JavaDoc;
26
27 import org.apache.commons.logging.Log;
28 import org.apache.commons.logging.LogFactory;
29
30 import net.sf.jasperreports.engine.JRParameter;
31
32 import com.jaspersoft.jasperserver.api.JSExceptionWrapper;
33 import com.jaspersoft.jasperserver.api.metadata.jasperreports.service.ReportDataSourceService;
34
35 /**
36  * @author Lucian Chirita (lucianc@users.sourceforge.net)
37  * @version $Id: BaseJdbcDataSource.java 4461 2006-09-07 15:42:20Z lucian $
38  */

39 public abstract class BaseJdbcDataSource implements ReportDataSourceService {
40
41
42     private static final Log log = LogFactory.getLog(BaseJdbcDataSource.class);
43     
44     private Connection JavaDoc conn;
45     
46
47     public void setReportParameterValues(Map JavaDoc parameterValues) {
48         conn = createConnection();
49         parameterValues.put(JRParameter.REPORT_CONNECTION, conn);
50     }
51
52     public void closeConnection() {
53         if (conn != null)
54         {
55             try {
56                 conn.close();
57             } catch (SQLException JavaDoc e) {
58                 log.error("Error closing connection.", e);
59                 throw new JSExceptionWrapper(e);
60             }
61
62             conn = null;
63         }
64     }
65     
66     
67     protected abstract Connection JavaDoc createConnection();
68 }
69
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