001: /*
002: * ====================================================================
003: * JAFFA - Java Application Framework For All
004: *
005: * Copyright (C) 2002 JAFFA Development Group
006: *
007: * This library is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU Lesser General Public
009: * License as published by the Free Software Foundation; either
010: * version 2.1 of the License, or (at your option) any later version.
011: *
012: * This library is distributed in the hope that it will be useful,
013: * but WITHOUT ANY WARRANTY; without even the implied warranty of
014: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015: * Lesser General Public License for more details.
016: *
017: * You should have received a copy of the GNU Lesser General Public
018: * License along with this library; if not, write to the Free Software
019: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020: *
021: * Redistribution and use of this software and associated documentation ("Software"),
022: * with or without modification, are permitted provided that the following conditions are met:
023: * 1. Redistributions of source code must retain copyright statements and notices.
024: * Redistributions must also contain a copy of this document.
025: * 2. Redistributions in binary form must reproduce the above copyright notice,
026: * this list of conditions and the following disclaimer in the documentation
027: * and/or other materials provided with the distribution.
028: * 3. The name "JAFFA" must not be used to endorse or promote products derived from
029: * this Software without prior written permission. For written permission,
030: * please contact mail to: jaffagroup@yahoo.com.
031: * 4. Products derived from this Software may not be called "JAFFA" nor may "JAFFA"
032: * appear in their names without prior written permission.
033: * 5. Due credit should be given to the JAFFA Project (http://jaffa.sourceforge.net).
034: *
035: * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046: * SUCH DAMAGE.
047: * ====================================================================
048: */
049:
050: package org.jaffa.presentation.portlet.widgets.controller;
051:
052: import org.jaffa.presentation.portlet.widgets.model.DateTimeModel;
053: import org.jaffa.datatypes.Parser;
054: import org.jaffa.datatypes.DateTime;
055: import org.jaffa.util.StringHelper;
056: import org.jaffa.datatypes.DateOnly;
057: import org.apache.log4j.Logger;
058: import org.jaffa.metadata.DateOnlyFieldMetaData;
059: import org.jaffa.datatypes.exceptions.FormatDateOnlyException;
060: import org.jaffa.datatypes.exceptions.FormatDateTimeException;
061:
062: /** Controller for the DateTime widget.
063: */
064: public class DateTimeController {
065:
066: private static Logger log = Logger
067: .getLogger(DateTimeController.class);
068:
069: /** Updates the model with the input value.
070: * @param value The new value for the model.
071: * @param model The model to be updated.
072: */
073: public static void updateModel(String value, DateTimeModel model) {
074: DateTime actualValue = null;
075: if (value != null && value.length() > 0) {
076: // append the 'seconds' to the String... as the widget merely passes the 'hours:seconds'
077: String valueWithSeconds = StringHelper
078: .convertFromHTML(value)
079: + ":00";
080: try {
081: actualValue = Parser.parseDateTime(valueWithSeconds,
082: model.getMeta().getLayout());
083: } catch (FormatDateTimeException e) {
084: if (log.isDebugEnabled())
085: log
086: .debug(
087: "The datetime string '"
088: + value
089: + "' cannot be parsed into a DateTime object. Will try to parse it into a DateOnly object.",
090: e);
091: try {
092: // cannot use the layout from the Model's DateTimeFieldMetaData object, as this may not be compatible with the dateonly string !!!
093: DateOnly dt = Parser.parseDateOnly(StringHelper
094: .convertFromHTML(value));
095: actualValue = DateOnly.toDateTime(dt);
096: } catch (FormatDateOnlyException e1) {
097: log
098: .warn(
099: "The datetime string '"
100: + value
101: + "' cannot be parsed into a DateOnly object. Leaving the model as is.",
102: e1);
103: return;
104: }
105: }
106: }
107:
108: if (log.isDebugEnabled()) {
109: log.debug("String '"
110: + value
111: + "' parsed into DateTime '"
112: + (actualValue != null ? actualValue.toString()
113: : null) + '\'');
114: }
115:
116: model.setValue(actualValue);
117: }
118: }
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