morgand 01/02/08 17:11:03
Added: jdbc/src/org/apache/taglibs/jdbc/resultset
BaseDateTimeGetterTag.java
Log:
base tag for getDate, getTime and getTimestamp
Revision Changes Path
1.1
jakarta-taglibs/jdbc/src/org/apache/taglibs/jdbc/resultset/BaseDateTimeGetterTag.java
Index: BaseDateTimeGetterTag.java
===================================================================
/*
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.taglibs.jdbc.resultset;
import java.sql.Types;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.sql.Date;
import java.sql.ResultSet;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Locale;
import javax.servlet.jsp.JspTagException;
/**
* Base tag for getDate, getTime, and getTimestamp
*
* @author Morgan Delagrange
* @author Marius Scurtescu
*/
public class BaseDateTimeGetterTag extends BaseGetterTag {
protected static HashMap _mapDateTimeStyle = new HashMap (4);
protected String _format = null;
static
{
_mapDateTimeStyle.put ("FULL", new Integer (DateFormat.FULL));
_mapDateTimeStyle.put ("LONG", new Integer (DateFormat.LONG));
_mapDateTimeStyle.put ("MEDIUM", new Integer (DateFormat.MEDIUM));
_mapDateTimeStyle.put ("SHORT", new Integer (DateFormat.SHORT));
}
public void setFormat (String strFormat) {
_format = strFormat;
}
/**
* Returns a formatted Date as a String, or null if the
* database row was null
*
* @param position position of the column in the ResultSet
* @param nType one of the following java.sql.Types: DATE, TIME, TIMESTAMP
* @return a formatted String, or null
* @exception JspTagException
*/
protected String getDateAsString(int position, int nType) throws JspTagException {
ResultSet rset = getResultSet();
String string = null;
try {
switch (nType) {
case Types.DATE:
{
java.sql.Date date = rset.getDate (position);
if (date != null) {
if (_format == null)
return date.toString ();
DateFormat fmt = getDateFormat (nType, _format, getLocale (_locale));
string = fmt.format (date);
break;
}
}
case Types.TIME:
{
java.sql.Time time = rset.getTime (position);
if (time != null) {
if (_format == null)
return time.toString ();
DateFormat fmt = getDateFormat (nType, _format, getLocale (_locale));
string = fmt.format (time);
break;
}
}
case Types.TIMESTAMP:
{
java.sql.Timestamp times = rset.getTimestamp (position);
if (times != null) {
if (_format == null)
return times.toString ();
DateFormat fmt = getDateFormat (nType, _format, getLocale (_locale));
string = fmt.format (times);
break;
}
}
default:
throw new JspTagException();
}
} catch (SQLException e) {
throw new JspTagException(e.toString());
}
return string;
}
private DateFormat getDateFormat (int nType, String strFormat, Locale loc) throws
JspTagException
{
switch (nType) {
case Types.DATE:
{
if (!_mapDateTimeStyle.containsKey (strFormat))
return new SimpleDateFormat (strFormat, loc);
Integer iDateStyle = (Integer)_mapDateTimeStyle.get (strFormat);
return DateFormat.getDateInstance (iDateStyle.intValue(), loc);
}
case Types.TIME:
{
if (!_mapDateTimeStyle.containsKey (strFormat))
return new SimpleDateFormat (strFormat, loc);
Integer iTimeStyle = (Integer)_mapDateTimeStyle.get (strFormat);
return DateFormat.getTimeInstance (iTimeStyle.intValue(), loc);
}
case Types.TIMESTAMP:
{
Integer iDateStyle, iTimeStyle;
int pos = strFormat.indexOf (",");
if (pos == -1) {
if (!_mapDateTimeStyle.containsKey (strFormat))
return new SimpleDateFormat (strFormat, loc);
iDateStyle = iTimeStyle = (Integer)_mapDateTimeStyle.get (strFormat);
} else {
String strDateStyle = strFormat.substring (0, pos);
String strTimeStyle = strFormat.substring (pos + 1);
if (!_mapDateTimeStyle.containsKey (strDateStyle) ||
!_mapDateTimeStyle.containsKey (strTimeStyle))
return new SimpleDateFormat (strFormat, loc);
iDateStyle = (Integer)_mapDateTimeStyle.get (strDateStyle);
iTimeStyle = (Integer)_mapDateTimeStyle.get (strTimeStyle);
}
return DateFormat.getDateTimeInstance (iDateStyle.intValue (),
iTimeStyle.intValue (), loc);
}
default:
throw new JspTagException ("Not a Date/Time JDBC type: " + nType);
}
}
}
