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Java > Open Source Codes > net > mlw > vlh > adapter > hibernate > util > setter > CalendarSetter


1 /**
2  * Copyright (c) 2003 held jointly by the individual authors.
3  *
4  * This library is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License as published by the Free
6  * Software Foundation; either version 2.1 of the License, or (at your option)
7  * any later version.
8  *
9  * This library is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
12  * for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this library; if not, write to the Free Software Foundation, Inc.,
16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. >
17  * http://www.gnu.org/copyleft/lesser.html >
18  * http://www.opensource.org/licenses/lgpl-license.php
19  */
20 package net.mlw.vlh.adapter.hibernate.util.setter;
21
22 import java.text.ParseException JavaDoc;
23 import java.util.Calendar JavaDoc;
24
25 import net.sf.hibernate.HibernateException;
26 import net.sf.hibernate.Query;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30
31 /**
32  * @author Andrej Zachar
33  * @version $Revision: 1.5 $ $Date: 2005/09/26 09:25:09 $
34  */
35 public class CalendarSetter extends AbstractSetter
36 {
37    /**
38     * Logger for this class
39     */
40    private static final Log LOGGER = LogFactory.getLog(CalendarSetter.class);
41
42    /**
43     * <ol>
44     * <li>If is filter value instance of the Calendar, it will set it directly
45     * to query. </li>
46     * <li>If is filter value instance of String, it try to convert it it to long and set to Calendar instance</li>
47     * <li>If is filter value instance of Long, it try to convert it it to long and set to Calendar instance</li>
48     * <li>Otherwise it will set null to query for key.</li>
49     * </ol>
50     *
51     * @see net.mlw.vlh.adapter.hibernate.util.Setter#set(net.sf.hibernate.Query,
52     * java.lang.String, java.lang.Object)
53     */
54    public void set(Query query, String JavaDoc key, Object JavaDoc value) throws HibernateException, ParseException JavaDoc
55    {
56
57       Calendar JavaDoc calendar = null;
58
59       if (value instanceof String JavaDoc)
60       {
61          calendar = Calendar.getInstance();
62          try
63          {
64             calendar.setTimeInMillis(Long.valueOf((String JavaDoc) value).longValue());
65             if (LOGGER.isDebugEnabled())
66             {
67                LOGGER.debug("The key's='" + key + "' String value='" + value + "' was converted to Calendar.");
68             }
69          }
70          catch (NumberFormatException JavaDoc e)
71          {
72             if (LOGGER.isWarnEnabled())
73             {
74                LOGGER.warn("The key's='" + key + "' String value='" + value + "' was not converted to Calendar, error was:"
75                      + e.getMessage());
76             }
77             throw e;
78          }
79       }
80       else if (value instanceof Long JavaDoc)
81       {
82          calendar = Calendar.getInstance();
83          calendar.setTimeInMillis(((Long JavaDoc) value).longValue());
84          if (LOGGER.isDebugEnabled())
85          {
86             LOGGER.debug("The key's='" + key + "' Long value='" + value + "' was converted to Calendar.");
87          }
88       }
89       else if (value instanceof Calendar JavaDoc)
90       {
91          calendar = (Calendar JavaDoc) value;
92       }
93       else if (value == null)
94       {
95          if (LOGGER.isInfoEnabled())
96          {
97             LOGGER.info("The key='" + key + "'s value is null.");
98          }
99       }
100       else
101       {
102          if (LOGGER.isWarnEnabled())
103          {
104             LOGGER.warn("The key's='" + key + "' value='" + value + "' was expected as Calendar.");
105          }
106          throw new IllegalArgumentException JavaDoc("Cannot convert value of class " + value.getClass().getName() + " to calendar (key=" + key
107                + ")");
108       }
109
110       query.setCalendar(key, calendar);
111
112       if (LOGGER.isInfoEnabled())
113       {
114          LOGGER.info("The key='" + key + "' was set to the query as Calendar='" + calendar + "'.");
115       }
116    }
117 }
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